GB2189765A - Cargo ship with unloading apparatus - Google Patents

Description

GB 2 189 765 A 1 SPECIFICATION using an unloader, for instance, usually is

done using bucket wheels. In this case, if the bottom of the Improvements in transporting apparatus barge has a width of 5 m, the bucket wheel must have a diameter greaterthan 5 m in order to be able to This invention relates to cargo ships with 70 transferthe earth to a belt conveyor provided on the transporting apparatus, suitably for use in transport barge.

systems for loading cargo collected on land or Forthis reason, it is inevitable to use large size transported from mineral resources extraction sites bucketwheels.

into a ship and unloading the cargo from the ship in a The cargo unloaded bythe unloader described different place. 75 above is transported using a Z-shaped transporting There have been transport systems for collecting apparatus with boat- shaped or box-shaped buckets corn or other agriculatural products orvarious attached to endless chains. in this case, the cargo can mineral ores or other gradular or powdery materials be readily discharged forthe bucket has a used in various chemical material industries in a construction capable of being reversed. When a specific place, transporting the collected matterto a 80 muddy cargo or like sticky cargo is handled, site of shipment, loading the transported material however, caro often partly remains stuckto the into a ship, transporting the loaded material overthe bottom of the bucket so thatthe remaining material sea to a different place, and unloading and must scraped off. This requires extra labour.

distributing in the transported material. Various Besides, mud-like matter stuckto the bucket improvements have been made in thesetransport 85 bottom can be manually scraped off only systems in accordance with the purpose and inefficiently, and the operation efficiency is low.

character of the transported material. Further, the manual operation of removing the Usually, belt conveyors are extensively used for remaining muddy matter is rather dangerous.

these systems fortransport. However, belt The present invention is directed to meeting conveyors are usually led from a site of collection to 90 demands for improving the prior arttransport a site of shipment, and materials must be patterns described above.

transported to the collection site on trucks orthe like According to the present invention there is across many cities and towns. In ddition, in orderto provided a cargo ship with transporting apparatus increase the capacity of transport on the belt comprising: first conveying means disposed in the conveyor, the width of the belt must be increased. 95 hold for conveying cargo horizontally in the As anothertype of transport, it has been known to longitudinal direction of the ship; second conveying use a bucket conveyor, which employs a number of means accommodated along the opposite side transport buckets attached to endless chains passed gunnels of the ship for converying cargo round upper and lower chain wheels. The bucket horizontally, said second conveying means being conveyor is used to scoop cargo collected below it 100 rotatabiy by 90'in a horizontal plane, and third and liftthe scooped cargo. Unlike the belt conveyor, conveying means forvertically conveying cargo however, it cannot continuously lift the cargo that is received from and to be supplied to said first and continuously broughtto the start point of the lifting. second conveying means.

In addition, it also hasthe same drawback asthatof Suitably, thethird conveying means is a vertical the belt conveyor as discussed above. 105 bucketconveyor.

Further, forthe transport of corn, coal, chemical Suitably, the vertical bucket conveyor hasfour materials, etc., as large transport ships as possible parallel endless chains passed round a plurality of must be used to reduce the transport expenditure. chain wheels and a plurality of buckets coupled at a Besides, it is necessary to provide measures for uniform interval to said endless chains are driven for preventing the material in transitfrom constituting 110 excursion by a drive chain wheel, and a bucket the source of dust or source of other contamination. coupling device forthe vertical bucketconveyor Further, ports are necessaryfor utilizing large comprising: a pair of elongate transversal coupling transportships. members respectively coupled to thefront and rear A port is required at or near an iron manufacturing ends of the underside of the bottom of each said plant because the cost of transport is not ignorable. 115 bucket, one of said coupling members being secured The construction of a new port, however, requires atthe opposite endsthereof to the bucket bottom, expenditures to preventthe destruction of the the other coupling member being pivoted tothe environment in addition to the port construction transversal center of the bucket bottom, said cost. coupling members being coupled atthe opposite In a further aspect, considering bare cargo loaded 120 endsto said endless chainsvia lever mechanisms in a ship, during a long voyage its opposite side layer and link mechanisms.

portions and bottom layer portion tend to be made The invention will now be described, byway of more compact by compacting forces exerted due to example, with reference to the accompanying its own weight or the rocking and rolling of the ship. drawings, in which:

The operation of the unloading of the cargo in the 125 Figure 1 is a pictorial schematic view showing a destination port, therefore, usually requires varying transport system according to the invention; amounts of labourfor breaking the cargo depending Figure2 is a pictorial schematic view showing a on the extent of its compactness that varies with the loading system; exerted compacting force. Figure3 is a perspectiveview parity in schematic The unloading of the earth collected on a barge 130 showing a pierwith a continuous loader; 2 GB 2 189 765 A 2 Figure4is a schematic side view showing a bucket and conveyor; Figure 38 is a perspective view of a bucket.

Figure 5is a plan view showing the same bucket Now, the transport system embodying the conveyor: invention will be described with reference to the Figure 6shows the configuration of rotary sections 70 accompanying drawings.

Al, Bl, Cl and D shown in Figure 5; Figure 1 outlines an example of thetransport Figure 7is a plan view showing a bucket E; system. In this system, part of mineral ore obtained Figures 8 and 9 are respectively longitudinal and in an extraction site W is transported using a bucket transversal sectional views showing the same lifterto the ground surface forthe conventional land bucket; 75 transport, but the rest of the ore is led by an exclusive Figure 10 is a plan view showing the relationship underground conveyorto a port X. In the portX, between buckets E and inner and outer endless loading system 1, which is an essential element of chains; the invention, is working.

Figure 11 is a side view showing the same; 1 n an unloading port Y, the cargo is unloaded by an Figure 12 is a fragmentary view showing a bucket 80 unloading system 7 to be led to a suitable coupling; distribution site Z.

Figure 13 is a side view showing a chain wheel in a In the case of an ore, it may be stacked bare. In the rotary section C3; case of corn or chemical products, a tower collectorZ Figure 14 is a sideview showing a rotary section D; is used for collections as shown in Figure 1.

Figure 151s a sectional view showing a 85 Now, the transport start site W, loading site X, loading/unloading apparatus used forthe transport unloading site Y and distributing site Z will be system according to the invention; individually described in detail.

Figure 16 is a pictorial perspective view showing a Figure 2 shows part of the system according to the cargo ship with transporting apparatus used as part invention up to the loading site. A belt conveyor3 of the transport system according to the invention; 90 extends through a horizontal tunnel. At the end of the Figure 17is a perspective view, partly broken belt conveyor 3, a hopper 4 and a bucket conveyor away, showing a different example of the cargo ship fortaking out cargo from the hopper and upwardly with transporting apparatus; 1 transporting it are provided and operatively coupled Figure 18 is a sectional view, to an enlarged scale, to each other.

showing a gate; 95 In the case of Figure 2,the bucketconveyor5 is led Figures 19 and 20 are respective a side view and a to a warf 1 which is separated from the land. Cargo is plan view, partly broken away, showing the cargo loaded from the top of the warf 1 into a transportship ship of Figure 17; using a separately provided bolt conveyor orthe like.

Figure21 is a schematicview illustrating the The belt conveyor 3 in the tunnel 2 need not consist manner of co-operation of individual conveying 100 of a single belt conveyor, but a suitable number of means; belt conveyors having a fixed length may be suitable Figure22 is a schematic view showing a Z-shaped used to coverthe length of the tunnel. Doing so will transporter; be convenientfrom the standpoint of power supply.

Figure23 is a fragmentary enlarged-scale view The bucket conveyor 5, to which cargo is supplied showing the Z-shaped transporter of Figure 22; 105 from the underground hopper 4, maybe provided Figures24 and 25 are views similarto Figure 22; with a scraping device and other necessary devices.

Figure 26 is a schematic plan view showing a The provision of these devices will ensure stable bucket conveyor with vibration amplitude limiter; operation of the bucket conveyor 5 for longtime, and Figure 27 is an exploded perspective view the bucket conveyor 5 can transport the maximum showing a bucket with coupling means; 110 quantity of cargo at all time. This is desire from the Figure 28 is a fragmentary plan view showing the standpoint of reduction of the operating time. On the structure of vibration amplitude limiterfor a front warf 1, the cargo that has been transported is loaded support point; into the cargo ship 6 using a belt conveyor, for Figure29 is a fragmentary plan view showing the instance.

structure of vibration amplitude limiterfor rear 115 Itwill be understood thatwith the construction support point; described above there is no need of transporting Figures 30 and 31 are respectively frag menta ry cargo on trucks across comparatively high side and frontviews showing a coupling structure at population coastal areas, buttransport can be done a front support point; through very convenient centralized control.

Figures 32 and 33 are respectively fra g menta ry 120 Figure 5 is a partly broken-away perspective view side and frontviews showing a coupling structure at showing the warf 1 and neighboring equipment. The a rear support point; bucket conveyor 5 has a construction as shown in the Figure 34 is a view showing a bucket coupling side view of Figure 4. Its rotary sections Al, Bl, Cl structure; and Dare shown in Figure 6.

Figure 35 is a view illustrating the coupling 125 The rotary section Cl includes a shaft 34a and between pin and bush in the bucket coupling inner and outerchain wheels 32a and 33b secured to structure of Figure 34; opposite side portions of the shaft 34a. The opposite Figure 36 is a view showing an improved bucket ends of the shaft 34a are supported in bearings 33 coupling structure; mounted in a casing 44.

Figure 37 is a perspective view showing a bucket; 130 The rotary section C2 has the same construction as 3 GB 2 189 765 A 3 the rotarysection Cl. The rotary section C3 also has portion of the bucket body 39.

the same construction as the rotary section Cl The bucket E is coupled to the outer endless chains exceptforthat its inner chain wheels 32a are each 31 b via a transversal rod 40 penetrating the hole 37b provided with a notch 42 in a valley 41 between in the rear projecting pieces 38b and connecting adjacent tooth as shown in Figure 13. The notch 42 70 members 35b fitted on the transversal rod 40. The servesto position a connecting member35b bucket E is also coupledtothe inner endless chains connecting an outerendless chain 31 b and a bucket 31a byconnecting members35a fitted ontothe rod Eto be described laterwhen the connecting member 40.

35a comes into engagement in it. The operation of the bucket conveyorwill now be The rotary section D further hasthe same 75 described with referenceto Figure 4.

construction asthe rotary section Cl exceptforthata When the motor M is started, the inner and outer driving chain wheel 34c is secured to one end of shaft endless chains 31 a and 31 b are driven in the 34a. The driving chain wheel 32c is coupled through direction of arrows.

a speed reduction unitto a motor M. The shaft34a Each bucket E is moved horizontally as shown by further carries a discharging member 43 secured to 80 arrow in the lower horizontal transport section. In the its central portion. The discharging member 43 is upward run in the vertical transport section, the adapted to strike the bottom of the bucket E and give inner endless chain 31 a are passed round the inner a shock thereto or raise the bottom,thereby chain wheels 32 in the rotary sections Bl and B2, discharging the cargo to the outside. The rotary while the outer endless chains 32b are passed round sectionAl has opposite side aligned shafts 34b, 85 the outer chain wheels 32b of the rotary sections Al which respectively carry outer chain wheels 32b and A2. In this section, the individual buckets E thus secured to them and are supported in bearings 33. ascends at an interval while holding their horizontal The rotary section A2 has the same construction as posture. When the top of this section is reached, the rotary section Al, and the rotation section B2 has each bucket E now is moved horizontally in the the same construction as the rotary section Bl. 90 direction of arrow.

In this bucketconveyor 5 of Figure 4, the rotary Atthe rotarysection D, each bucket E is U-turned sections Cl,Al,A2, Bl,A2, B3, D and C3 are into an inverted state. In this state, it isthen moved disposed in the illustrated positios, and outer horizontally. Atthe subsequent rotary section C3, it is endless chains 31 b are passed round the outerchain turned right anglesto descent in the vertical state. At wheels of the rotary sections Cl, Al, A2, D, C3 and 95 the rotary section C2, it is again turned right anglesto C2. Each bucket E has a front portion coupled on the proceed toward the rotary section Cl.

opposite sides to the respective inner endless chains The cargo such as powdery cargo that is 31 a and a rear portion coupled on the opposite sides continuously supplied from the belt conveyor 3 over to the respective outer chains 31 b. In this way, a to the lower horizontal transport section of the plurality of bucket E are coupled in a rowto the inner 100 bucket conveyor can be charged into the individual and outer endless chains 31 a and 31 b. The buckets E buckets E without partlyfalling orthe outside by can proceed horizontally in a horizontal transport virture of theflap member36,which bridgesthe section and they are then moved upwardly, whilst adjacent buckets E asthe buckets E run beneath the still assuming a horizontal posture, in a vertical discharge end of the belt conveyor 3. Each bucket E transport section. 105 now containing cargo runs horizontally along the The notch 42 that is provided in the valley 41 horizontal transport path to reach the vertical between adjacentteeth of the inner chain wheels 32a transport section, where it ascends to reach the in the rotary section C3 to position the connecting upper horizontal transport section where it runs member 35b when the member 35b is received in it, horizontallyto reach the rotary section D. Atthis is provided for providing for smooth excursion of the 110 section, its bottom is given a shock or raised bythe bucket conveyor. To ensure smooth excursion, the discharging member 43, so thatthe content in the inner and outer chain wheels in the individual rotary bucket can be discharged with only its slight portion sections are secured to the associated shafts such remaining stuck to the vessel bottom. The thattheirteeth are staggered so that the teeth of the discharged contentfalls onto a belt conveyor G.

inner chain wheels will mesh with links of the inner 115 The intermediate plate 45 used forthe bucket E of endlesschains. the bucket conveyor 5 may be a rubber plate, a Figures 7 through 12 showthe relation between rubber plate with a lamination of thin flexible metal the buckets E and the inner and outer endless chains sheets provided on the lower side of the rubber 31 a and 31 b. The bucket E consists of a boat-like plate, a synthetic resin plate having elasticity and body 39 having an intermediate rubber plate 45 120 satisfactory partability, an elastic plate having a provided between its front and rear poritions. Its partable surface layer, etc. This plate serves to take opposite side walls have bent lower ends 46. Its up various metallic sounds generated during bottom is clamped between these bent] lower ends operation. Also it has a property of repelling water, 46 and retainers 47. It further has front and rear and thus with a cargo containing water it permits the projecting pieces 38a and 38b upwardly projecting 125 cargo to be discharged with little portion cargo to from the opposite side walls. These projecting pieces gather together toward the center and be less stuck 38a and 38b have respective holes 37, and the front to the side walls of the bucket. An then the bucket is projecting pieces 38a are bolted by bolts 48to the U-turned atthe roraty section D, it co-operateswith opposite sides. Aflap member 36 made of rubber is the discharging member43 to reduce the striking of secured by means of an adhesive or bolts to the front 130 cargo to the bottom of the bucket.

4 GB 2 189 765 A 4 The discharging member43 may be a cylinder in lieu of a bucketwheel sothata hopperand a belt having a large diameterfitted ontheshaft34a. conveyor may be installed by making use of an Further, the peripheral surface of the cylinder may be available space in the bucket lifterto reducethe formed with irregularities to provide for a sort of installation spacae as a whole.

vibrating effect. 70 An unloading apparatus, in which a bucket lifter Figures 9through 14 showa specific construction can be operated by a motor-driven chain blockor like of the bucket conveyor,which comprised a plurality lifting device so that operations atthe of rotary sections provided in necessary locations commencement of unloading can be smoothly done.

and endless chains passed round chain wheels in the Further, with respectto the removal of highly individual rotary sections and carrying buckets using 75 sticky cargo remaining stuckto the bucket bottom, satisfactorily partable flexible material or elastic an apparatus, in which a boat-shaped bucket is material. The rotary section atthe outlet has a shaft provide with a scraper capable of being turned in an with a discharging member. Here, the discharging interlocked relation to the turning of the bucket, with member 43 serves to raise and deform the bottom of the freedom of motion of the scraper being increased each bucket. Thus, cargo that is sticky or capable of 80 with such an arrangement that an arm of the scraper being readily solidified can be satisfactorily is moved by a cam, is desired.

separated from the bucket and discharged to the Figure 15 shows a specific unloading apparatus outside. With this construction, the following effects according to the invention. This apparatus has both can be obtained in addition to the effects described unloading and loading lines 103 and 106 provided on above. 85 a warf 107. The unloading line 103 includes a crane (a) Great quantities of cargo can be transported not 101 and a hopper 102. The loading line 106 includes a only in the vertical and horizontal directions but also hopper 104 and a telescopic shoot 105. The warf 107 in any other direction. is constructed such that a cargo ship can be (b) Since the flap member provided on each bucket anchored alongside it. A bucket lifter or like conveyor serves to stride adjacent buckets in the horizontal 90 108 is provided in the warf 109 for conveying cargo transport section, powdery cargo can betransported to and from a space defined in the foundation or sea efficiently withoutthe possibility of failing between bed.

adjacent buckets. A horizontal conveyor 109 is provided such that it (c) The bucket conveyor can be installed without extends from the space in the foundation to a cargo requiring a wide installation area as in the case of the 95 yard on land.

belt conveyor. The vertical and horizontal conveyors 108 and 109 The construction of the warf 1 will now be are provided in a water-tight warf and tunnel spaces.

described in detail with reference to Figure 3. 1 n view of trend for increasing size and scale of A screw feeder 51 is provided in a transport transport ships the warf 107 suitably extends at least chamber52formed under a sea bed. The screw 100 about 17m from the sea surface to the sea bed and feeder 51 extends between one end of a belt has a height of about 50m form the sea level to the conveyor3 in a horizontal tunnel and a lower top of the crame 101. The effective operating length horizontal transport section of a bucket lifter 5. An of the crane 101 may be about37m in orderto be able upper horizontal transport section of the bucket lifter to be used for 60, 000=ton bulkcargo shipsjor 5 is located above a cylindrical support 53 and is 105 instance.

coupled to a separate belt conveyor G. The apparatus described above performs an A plurality of such transport systems may be unloading operation of 1, 200tons/h (i.e.,1,200m/h) at provided, and a bucket lifter is coupled to the belt the most.

conveyor G in each system. The bucket lifter is The unloading apparatus of Figure 15 can secured to the warf 1. 110 undertake the loading of cargo as well as mentioned With this construction of warf 1, cargo, for instance above, and its construction will now be described in coal, is transported on the belt conveyor 3 to the detail.

screwfeeder 51 and is then transferred to the bucket To permit both unloading and loading, a hopper lifterwhose vertical section is in the cylindrical 104 is separately provided overthe ward 107 on one support 53. Atthetop of the bucket lifter, the cargo is 115 side of the top of the vertical conveyor 108. A delivered from each bucketto an upper horizontal small-scale horizontal conveyor, e.g., a belt transport section through the cylindrical support 53. conveyor, 117 is provided benearth the hopper 104.

From the upper horizontal transport section the Cargo that is supplied from the hopper 104to the cargo is dropped into transport ship 6. horizontal conveyor 117 is thus loaded into a bulk In the above way, the transported cargo can be 120 cargo ship 112, for instance, through the telescope continuously loaded into the transport ship. shoot105.

In the destination port, the cargo loaded in the The functions of various components of the transport ship is unloaded. This is desirably done apparatus will now be described in connection with using a method or apparatus which can overcome the case of unloading.

drawbacks inherent in the prior art. 125 For unloading cargo from the bulk cargo ship 112

Examples of the apparatus that can solvethe anchorded alongside the warf, the crane 101 is problems encountered in the prior art are: moved up to an intended position, and then its top is

An unloading apparatus, which can adopt itself to approriately positioned.

any barge having any bottom depth. A grab 113 which is suspended from the top of the An unloading apparatus,which uses a bucket lifter 130crane 101 isthen lowered into the ship and operated GB 2 189 765 A 5 to grab cargo. Then it is raised, and moved by member D is provided for the purpose of supporting horizontal grab means of the crane 101 to a position the transversal conveyor E and it may have a right above the hopper 102. The grasped cargo is plate-like form or any other suitable form.

then discharged into the hopper 102. The bucket conveyor E may be of ordinarytype.

The cargo discharged into the hopper 102 is 70 The arrangement shown in Figure 16 is forthe transported byfeeder 1 14to be fed into the hopper operation of unloading cargo from ship to land. For 11 5for the vertical conveyor 108 such as a bucket loading cargo into ship, the land side end of the conveyor. The cargo is thus conveyed bythe vertical transversal conveyor is disposed beneath a land side conveyor 108 to the bottom of the warf 107. hopper.

Cargo is then transferred to the horizontal 75 A different example of bulk cargo ship is shown in conveyor 109to be transported through tunnel 111 the perspective view of Figure 17. In this instance, the to the cargo yard on land. ship has first conveyor means 201 extending in the The unloading apparatus, or more correctly hole in the longitudinal direction of the ship, a pair of loading/unloading apparatus, as described is second conveyor means 202 provided on the constructed such that its main components can be 80 opposite gunnels and capable of rotation in a used for both loading and unloading. Forthe horizontal plane, and third conveyor means 203 loading, the vertical and horizontal conveyors 108 coupling togetherthe first and second conveyor and 109 are operated in the opposite direction. An means. The first and second conveyor means 201 end portion of the horizontal conveyor 109, which is and 202 convey cargo in the horizontal direction, provided to co-operate with a hopper 118 provided at 85 while the third conveyor means 203 conveys cargo in the lower end of the vertical conveyor 108, may be the vertical directions. Drive means 204 can rotate adapted such that its slope angle is variable for each second conveyor means 202 by 9Win the loading and unloading operations. horizontal plane via wiresfrom the accommodated The warf 107 should of course have a structure position, in which it is parallel to the tunnel, to a which will never be collasped when various 90 perpendicular position orfrom the perpendicular equipments such as crane 101 are installed on it. A position tothe accommodated position. Reference concrete structurewith a concretewall thickness of numeral 205 designates a hold forcontaining about 5m will withstand the weight of various granularcargo. The bottom of the hold 205 is equipments which are necessaryfor operation ata constituted by a number of aslant members, along rate of 1,200 tons/h as noted above. 95 which the granular cargo may be supplied onto the A bulk cargo ship which is provided with a first conveyor means 201. The lower outlet end each loading/unloading apparatus according to the aslant member is provided with a gate 206.

invention will now be described with reference to Reference numeral 207 designates hatch covers.

Figure 16. The ship comprises a ship bodyA, rails B, Figure 18 shows an example of the gate 206. The gate supports C provided on the rails B, a transversal 100 206 has a gate member 261 which is rotatable about cargo support member D provided on the supports a shaft 260. The gate member 261 is driven by a C, a screw conveyor or belt conveyor E supported on cylinder 263 via a lever 262 integral with the gate the transversal cargo support member D and a member.

bucket conveyor Fwhich is provided between the Figure 19 is a side view, partly broken away, conveyor E and hold. 105 showing the bulk cargo ship of Figure 17, and Figure The bucket conveyor F has a cover as illustrated, 20 is a plan view of the same. In this example, belt but the cover may be omitted so that the conveyor is conveyors are used as the first convey or means, and exposed. The bucket conveyor F may be freely a bucket lifter is used as the third conveyor means.

displaced in the longitudinal direction of the The belt conveyor serving as each second conveyor transversal conveyor E. The conveyor system that 110 means 202 is accommodated in the tunnel when it is comprises the bucket conveyor F and transversal not used for loading or unloading. Thebelt conveyor conveyor E can be freely displaced along the rails B 202 may be turned by an angle 0 of 9Watthe most in the longirudinal direction of the ship. The bucket about an axis 209 of rotation. It may consist of a conveyor Fthus can be broughtto a desired position plurality of stages so that it can be extended and in the hold for loading or unloading of cargo in that 115 contracted. The extension and contraction of the belt portion of the hold. conveyor may be caused through the wires 208.

The ship body A itself does not require any special Figure 21 shows the coupling between the beitthe equipmentfor loading or unloading, and it only need belt conveyors 201 and bucket lifter 203. As is shown, by capable of ballast adjustment according to cargo is charged from the belt conveyors 201 into a gradually vrying weight of the cargo. 120 hopper 210 to be supplied to the bucket lifter 203.

The rails B are laid on the deck of the ship bodyA. The bucket lifter 203 is similarly coupled to the belt.

They may be of ordinary type for guiding the conveyors 202. - conveyor system along them. The operation of the bulk cargo ship with the The supports C have a sufficient heightforthe conveyor system described before in connection transversal cargo support member Dto be moved 125 with Figure 17 through 21 will now be described. A overvarious equipments provided on the deck. casewill betaken, in which the bulk cargo ship isfull Of course, the supports C should withstandthe of cargo and is anchored alongside warf for sum of the weights of the transversal cargo support unloading. Afterthe ship has been anchored member D, transversal conveyor E and cargo being alongside the warf, the second conveyor means 202 transported thereon. The transversal cargo support 130 in the leftgunnel, in the instant case, is turned 90'by 6 GB 2 189 765 A 6 the drive means 204, and it is also extended if the bucket proceeds pastthe blade 311.

necessary, so that its end is broughtto a Powerfor causing rotation of the cam 308 in an loading/u n loading site. Then, the firstto third interlocked relation to the process of the bucket, may conveyor means are operated, and the gates 206 are be conveniently obtained form the chain wheel shaft opened. Cargo in the hold 205 thus starts to fall onto 70 as is shown. However, it is of course possible to use a thefirst conveyor means 201. The openings of the separate chain wheel shaftfor deriving the driving gates 206 are controlled depending on the state of torque.

cargo in the hold such that cargo remains uniformly, With the above construction of the scraping thus minimizing the tilting of the ship. Thefirst device, it is possible to design the shape of the conveyor means 201 conveys the supplie cargo 75 scraping arm 309 and cam 308to meet the shape of along the bottom of the ship and transfers itto the the inner surface of the bucket and the speed of third conveyor means 203. The third conveyor progress thereof. Thus, it is applicable not onlyto the means 203 conveys the cargo to a high level position boat-like bucket as is shown but also to a bucket of and transfers it onto the second conveyor means any other shape such as a semi-cylindrical bucket.

202. The second conveyor means 202 conveys the 80 As has been described in the foregoing, with the cargo to site of collection. unloading apparatus according to the invention the The unloading operation described above is following effects can be obtained.

entirely carried out automatically and requires Sincethe unloader usesthe bucket lifter, neither manual adjustment nor manual help. In unloading operation can be donefrom any level in addition, no loadinglunloading equipment is 85 the interior of the cargo ship, which is most desirous required on the side of the port. Thus, automatic forthe unloading operation of this type on a mass loading and unloading can be carried out at any port. production scale.

The bulk cargo which is unloaded onto land in the The hopper and belt conveyor can be installed in above way, is transported by a horizontal the available space in the bucket limiter minimise the transporter, and also by a Z-shaped transporter 90 size of the overall apparatus. This is advantageous where there is a level difference,to a storage place. from the standpoints of the assembly, transport, As the horizontal transporter may be used the storage and disassembly of the unloader.

conventional belt conveyors, scrw conveyors or Aside from the above main advantages, the use of otherconveyors. the Z-shaped buckettype transporter having a The Z-shaped transporter, which is utilized in case 95 function of automatically scraping residual content wherethere is a level difference, should beone, offthe bucketcluring operation of thetransporter which need not be stopped frequently forthe makes it possibleto obtain a continuouscargo purpose of cleaning. unloading and transporting apparatus,which can be Figure 22 shows an example of the Z-shaped operated continuously for a long time.

transporter. It has a frame 300, which accommodates 100 The Z-shaped transporter described above in endless chains 305 with a number of buckets 306 connection with Figure 22 has a certain problem, coupled thereto. Each bucket306 can transportcargo which will now be described. Figure 24 is a view supplied from a screw conveyor301, for instance, similarto Figure 22 showing the same Z-shaped along the endless chain path and discharge it as it is transporter exceptforthat additional reference U-turned round a chain wheel 302 atthe righttop of 105 numerals are provided. Reference numeral 300 the endless chain path. designates a frame of the Z-shaped transporter.

A hopper 303 is an example of means for Reference numerals 312 and 313 designate chain transferring the cargo received from the Z-shaped wheels atthe bottom and top ends of the Z-shaped transporter. The endless chains 305, are driven from transporter, respectively. Reference numerals 314, a motor304. In case when the cargo transported by 110 315,316a, 316b, 317a and 317b designate chain each bucket is sticky, it may partly remain stuckto wheels at intermediate bent portions of the the bucket (i.e., inner side and bottom walls of the transporter path. Each of the chain wheels 312,313, bucket) as the bucket is U-turned. For removing the 314 and 315 has fourjuxtaposed chain wheels residual content, a scraping device as shown in supported on a common shaft. Four parallel endless Figure 23, dWerentfrom that shown in Figure 22, is 115 chains 305a to 305d are passed round thesefour provided. It has a scraper 307 and a cam 308,these chain wheels. The outertwo endless chains 305a and being located to face the underside of a bucket right 305b are also passed round the chain wheels 316a afterthe bucket is U-turned. The scraper 307 has an and 317a. The inner two endless chains 305c and arm 309 which is rotatable about itsfulcrum point 305d are also passed round the chain wheels 316b 310. A scraping blade 311 is mounted on thefree end 120 and 317b. Each of the buckets 306 has its rear of the scraper arm 309. The scraping blade is suitably opposite side support points coupled to the made of an elastic material such as rubber, and its respective two inner endless chains 305e and 305d.

width is suitably such that it can be in frictional The chain wheel 313 atthe top end is driven by drive contactwith the opposite sides of the bucket. motor 304, thus causing excursion of the individual The scraper arm 309 has a cam roller 312 provided 125buckets 306 along the frame 300. Reference numeral at a suitable position and in rolling contactwith the 301 designates a conveyor which is coupled to the cam 308 with the rotation of the cam 308, the bottom end of the Z-shaped transporter. Reference scraping blade 311 undergoes a see-saw motion numeral 303 designates a hopper, which receives with the arm 309. With this motion, the matter stuck cargo failing f rom the top end of the Z-shaped to the inner surfaces of the bucket is scrapped off as 130 transporter.

7 GB 2 189 765 A 7 In this Z-shaped transporter, which can serve as an elastic material, e.g. , rubber, which is mounted by bucket I ifter, the distances between the chain wheels means of amounting frame. In this case, as the 312 and 316a, between chain wheels 316a and 317a, bucket 306 is inverted round the chain wheel 313 at between chain wheels 317a and 313, between chain the top end, an urging roller 326 provided on the wheels 313 and 315, between chain wheels 315 and 70 shaft chain wheel 313 raises the elastic bottom 314 and between chain wheels 314 and 312, are member 325. In this way, viscous cargo may be different, and also the weight (or more correctly discharged satisfactorily. A bracket 327 is mounted mass) between the chain wheels of the individual on the bucket 306 at a front support point on each pairs are different depending on the amount or side. It is secured to the bucket 306, and it has an density of cargo contained in the buckets. Therefore, 75 upper notch 328a, a pin hole 329 formed in a lower complicated resonant frequencies of the individual portion and a stopper330 projecting form a rear pairs of chain wheels occur and have adverse effect portion. A link member 331 is rotatabiy mounted in on the operation of the bucket lifter. The resonant the bracket327with its pin.331 has a front shaft 334 frequencies, which occur in a large number, also secured to its upper portion and having a spacer333.

vary depending on conditions, underwhich the 80 Thefront shaft334 is coupled to the associated inner bucket lifter is used. Further, waves,winds, endless chain. The endless chain isfitted on the earthquakes, etc., which are causes of vibrations, are spacer portion 333 of the front shaft and retained by natural phenomena or at least depend on natural fitting a nut 335 on the shaft.

phenomena, so thatthey cannot be accurately As shown in Figure 28, a pair of guide members forecast. Therefore, it is impossible to eliminate the 85 346 are provided on stationary supports 348 secured adverse influence noted by means of controlling the to the frame 300 such thatthey face each other on the resonant frequencies. It is more realisticto copewith opposite sides of and at a slight spacing from a roller the adverse influence by means of restricting the 350 of each inner endless chain, i.e., chain 305c in the amplitude of vibrations. illustrated case. The guide members are most Further, the angle, atwhich the chains are passed 90 suitably made of a highly lublicant material, e.g., and round the chain wheels 316a, 316b, 317a, 317b 315 oil-containing alloy. The roller 350 of the chain, and 314, is obviously 90o and is limited to 90'so long which is the guided member, may be made of a as the instant structure is employ6d. The number of material having high rigidity. The guide members rollers of a roller chain which is passed round the 346 and supports 348 constitute thevibration chain wheel overthe angle of 90'noted above is 95 amplitude limiter.

small, so that detachmentof chain is liable in the Referring backto Figure 27, a bracket336 is eventwhen a large amplitude of vibration is exerted secured tothe bucket306 at a rearsupport pointon or built up due to resonance. each side. A link 339 is rotatably mounted on the This drawback is particularly pronounced in case bracket 336 with its pin 338 inserted in a pin hole 337 where the bucket lifter is installed on a ship. 100 formed in the bracket 336. The bracket 336 may be of Figure 25 shows a bucket lifterwith vibration the same shape as the bracket 327 atthefront amplitude limiter according to the invention. The support point. In the instant example, however, it has construction and operation of this bucket lifter is a notch 328b formed in its front portion. It is secured substantially the same as the bucket lifter shown in to the associated side plate of the bucket 306.

Figure 24 except for that the vibration amplitude 105 A stopper 340 projects outwardlyfrom the side limitercan overcomethe drawback discussed plate of the bucketon the rearside of the bracket336.

before. In the Figures, like parts are designated by The link339 has a rearshaft 341 secured to its upper like reference numerals, and their description is portion. An arm 342 is coupled to thefront rear shaft omitted. 341. Itstrides the inner endless chain 305cand Figure 26 is a sectional view,to an enlarged scale, 110 extends upto the outer endless chain 305a. The outer taken along line S-S in Figure 25. Figure 27 is an endless chain 305a is coupled by a bolt343 and a nut enlarged-scale exploded perspective viewshowing a 344tothe outer end of the arm 342. The arm 342 is bucket and meansfor coupling the bucketto inner coupled to the rear shaft 341 byfitting its hole 346 on and outer chains. Figures 28 and 29 are theshaft341 and clamping a nut 345thereon.

enlarged-scale plan views illustrating vibration 115 As shown in Figure 29, a pair of guide members amplitude limiteratfront and rear support sections 346 are provided on the opposite sides of roller350 of the bucket, respectively. The bucket 306 is made of of the endless chain 305a like the case of thefront steel sheet and has a shape like a boat. It has a flap support point described above. In this case, member 324 of an elastic material, e.g., rubber, however, stationary supports 347 have a smaller projecting from the rear end of its body. The flap 120 length than the supports 348. When the bucket 306 is member 324 engages the front end of the succeeding being raised in its horizontal state, the arm 342 is in bucket when the buckets are running past a spot, at its position shown in Figure 29, which is at an angle which cargo is continuously discharge from the of 90'from its position shown in Figure 27.

conveyor301 atthe bottom of the Z-shaped bucket When the bucket 306 is on the descent, it is in a lifter,thus preventing the cargofrom failing through 125 vertical state. In this path,the innerendless chain otherwiseformed gap between adjacent bucketsto 305c extends on the innerside of and parallel with attach to endless chains and otherdriving parts and the outer endless chain 305a. Here, it extends cause wearthereof. If desired, the bottom of the through a notch 342b formed in the arm 342. The bucket is angularly notched or removed, the opening right half of Figure 26 illustrates the arrangement of thus formed is covered by a bottom member 325 of 130the guide members in this case. In this case, the 8 GB 2 189 765 A 8 guide structure for the outer endless chain 305a is The shaft 406 has a tapered end portion 408. The the same as shown in Figure 29. In the guide associated endless chain, e. g., chain 305b in the structure forthe inner endless chain 305c, on the illustrated case, is coupled to the tapered portion 408 other hand, one side of the notch 342a of the arm 342 and retained thereon by a washer 409 and a pin 450.

serves as a guide, and a single support 349 serves as 70 While the lever 405 is rotatable about the shaft 404, both the supports 347 and 348. its rearward rotation is restricted by a stopper407 The guide members 346 and supports 347,348 and which is secured to the associated side of the bucket 349 constitute the vibration amplitude limiter351. 306.

The vibration amplitude limiter350 as described Figures 32 and 33 show a rear support point above is shown provided at the position 75 coupling mechanism. A mounting member 501 is corresponding to the line S-S in Figure 25. However, secured to bucket 306, and it supports a pipe 502. A it may be provided at any position of the endless separate mounting member 503 is also secured to chain excursion path except forsections passing the bucket. It is provided notfor shring load, but it is round the chain wheels. provided forthe purpose of preventing warping of In the vibration amplitude limiter,the guide 80 the pipe 502.

members 346 guide the rollers of the endless chains Ashaft 504 is loosely fitted in the pipe 502. A lever 305a to 305d. The chain rollers thus roll overeither 505, a bearing box 508, an arm 509 and a shaft 506 guide member, so thatthe coefficient of friction is are made integral by means of welding to an end of low. Thus, it is possibieto expectsmooth rotation of the shaft 504 projecting from the pipe 502. The the rollers and smooth excursion of the endless 85 integral assembly is rotatable with respectto and chains. Besides, the vibration amplitude limiter has removably coupled to the pipe 502.

no effect on the passage of the buckets at all. When The endless chain 305a is coupled to the shaft 506 the amplitude of vibration of the endless chain tends in the same manner as that in which the chain 305b is to be increased due to application of external coupled to the shaft 406 noted above. A stopper 507 vibrating force such as waves, winds, etc. or due to 90 is secured to the bearing box 508 which is integral resonance caused by shocks, etc. the guide with the lever 505. This structure is similarto the members of the vibration amplitude limiter relation between the lever 405 and stopper 407 noted suppresses the vibration of rollerho limitthe above.

amplitude of vibrations. Thus, cargo being conveyed The shaft 506 integral with the arm 509 is rotatably bythe buckets will neverfall thereof northe buckets 95 supported in a bearing provided in the bearing box will strike the frame due to vibrations. Further, the 508.

vibration amplitude limiter has the same function as Referring to Figure 24 again, in a section of bucket a mechanism with guide sprocketwheel, which is so excursion path between the chain wheels 316a and referred to in chain conduction mechanics, so that it 316b on one hand and chain wheels 317a and 317b can reliably prevent detachment of chainsfrom 100 on the other hand, thefour chains 305a to 305d chainwheels. extend such thatthey pass through the respective This meansthatthe bucket ffierwith vibration corners of a rectangle in a horizontal plane. In this amplitude limiter permits stable conveying section of path, each bucket 306 is coupled to the operation when used on a ship or on a land place four chains by the respective four coupling which is subjectto vibrations. Besides, it eliminates 105 mechanisms, i.e. , a pair of front support point the need forvigil personnel that is otherwise coupling mechanisms 400 and a pair of rear support necessaryfor operation in such circumstances, so point coupling mechanisms 500. By this coupling, that it permits saving of man-hour. the bucket 306 is held in the horizontal state while it is Especially, although it has been sometimes raised. Since the chain 305a extends vertically in this impossibieto use the usual bucket lifter on a ship for 110 section of path, the arm 509 and shaft 506 of the loading and unloading depending on the status of accosiated rear support point coupling mechanism waves, the bucket lifter described above according to 500 are at right angles to their orientation shown in the invention can be stably operated even in such Figure 33. Also, the arm 405 in the front support point circumstances. coupling mechanism 400 and bearing box 508 in the Now, a different example of the coupling of bucket 115 rear support point coupling mechanism 500 are to chain will be described with reference to Figures capable of engagementwith and disengagement through 33. form the respective stoppers 407 and 507, while the Figures 30 and 31 show a front support point bucket 306 is coupled in the horizontal state bythe coupling mechanism. Reference numeral 401 fourcoupling mechanismstothe respective chains, designates a mounting member, which is integral 120 it is generally difficuitto define a plane byfour with bucket306 and also serves as reinforcement points. Generally, the weight of the bucket is not member. A pipe 402 is coupled by a pin 403tothe uniformly shared bythefourchains dueto such centerof the mounting member401. The pipe 402 is causes as mounting errors and different amounts of rockable aboutthe pin 403. Ashaft404 is loosely elongation of the chains. In the instantcoupling fitted in the pipe 402. A lever405 is secured by means 125 system,the pipe 402 which is common to thetwo of welding to an end of the shaft404 projecting from frontsupport point coupling mechanisms 400 is the pipe402. Ashaft406 is secured by means of rockablycoupled tothe central pin 403. That is, welding to the lever405. The lever405 and shafts although the bucket306 is designed to be supported 404,406 integral with each otherare rotatablewith bythefourchains (and four coupling mechanisms), respeetto and removably coupled to the pipe 402. 130its weight is actually three support points, i.e., the 9 GB 2 189 765 A 9 mounting members 501 of the rear support point projecting from aside wall of bucket 306 is loosely coupling mechanisms 500 (on the opposite sides of fitted in a bush 602 projecting from the associated the bucket) and the common center pin 403 of the chain. The inner periphery of the bush 602 engages front support point coupling mechanisms 400. This substantially the lower half of the pin 61 overthe coupling system meetsthetheory of defining a plane 70 length Xthereof extending in the bush 602for bythree points. (The mechanical structure of this bearing the load.

support system will be hereinafter referred to as When the transporter is used frequently, extra three-point support structure). clearance is naturally produced between the pin 601 In the section of the bucket excursion path and bush 602. In consequence, the state of extending form the chain wheels 317a and 317b past 75 engagement between the pin 601 and bush 602, the chain wheels 313,315,314 and 312 to the chain which is normally as shown in Figure 35A,would be wheels 316a and 316b, the buckets 306 are moved changed to that as shown in Figure 35B in the event just like a cargo train. In this state, the coupling of vibrations of the bucket 306 caused by any cause.

mechanisms 400 and 500 are as shown in Figures 25 The state shown in Figure 35B is very undesired from through 33. In the descent section of the bucket 80 the standpoint of the safety.

4 excursion path between the chain wheels 315 and Similar statewould also take place in case where a 314, the support points on the side of the bucketand pin is provided on the side of the chain and a those on the side of the chains are off-set by mount sleeve-like member is provided on the side of the corresponding to the length of the arms 405 and 505. bucket.

The stoppers 407 and 507 are thus in engagement 85 Figure 36 shows a chain which can solvethe with the arms 405 and bearing boxes 508 and problem discussed above.

receiving the load of the bucket. If the load isshared A linkof chain 603 has a hole 605formed atthe non-uniformly bythe support points clueto central position, and a bush 606 isfitted in the hole non-uniform elongation of the chains orother 605 and secured to the link. The bush 606 is causes, a stopperwill bear greaterthan the force 90 preferably made of tenacious steel.

exerted to any other stopper. In long use, permanent A pin, for instance the pin 601 shown in Figure 34, stresses are produced atthe four support points, and projecting from the bucket, is fitted in the bush 606 eventually the load is shared uniformly by the four overthe entire length thereof. In this structure, the support points. In other words, the coupling system load is born bythe entire width of the chain 603. In shown in Figures 30 through 33 has a function of 95 this case, local wear of the pin and bush is extremely automatically uniformalizing the sharing of load reduced comparedto the case of arrangement of among the four support points of the bucket. Figure 34. In addition, smoother rotation can be The effectiveness of this coupling system is quaranteed.

summarized asfollows. Figure37 shows a perspective view of an example (1) Since the coupling system isof thethree-point 100 of bucket 306. The transporter requires sufficient support structure, it minimizes the tilting of the supervision for its operation. In this example,the bucket. The four chains uniformly share the load and bucket body has a glass window 306a provided on uniformly undergo elongation. Thus, the chains can each side wall. The glasswindow 306a will facilitate pass round the chain wheels with increased the supervision of the state of cargo being conveyed smoothness. These features permit stable operation 105 and permit early detection of faultiness. The location for long firne. and shape of the glass window may be suitably (2) The sharing of load is automatically changed to suitthe operation.

uniformalized. As the meterial of the glass window may be used (3) The shafts 404 and 504 of the respective highly transparent synthetic resins as well as coupling mechanisms 400 and 500 are iooselyfitted 110 transparent glass.

in the pipes 402 and 502. This structure permitsvery The bucket body may be painted with a paint of a ready replacement of the bucket 306 or replacement color, which is in good contrastto the color of the of the arm of coupling mechanism, which is desired cargo being conveyed. Doing sofurtherfacilitates for convenient maintenance. the supervision of the cargo being conveyed (4) Further, the loose fitting of shaft in pipe permits 115 th rought the window.

insertion of shaftto an extent substantially equal to Further, only one of the plurality of buckets used in one half of the width of the bucket. Thus, it is the transporter may be painted with paint of a possible to eliminate such inconveniences as partial different colorfrom that forthe other buckets. Doing contact of shaft and occasional detachment thereof so permits ready confirmation of the number of while assuring the effectiveness of the above items. 120 excursions and also position of a given bucket.

The chains are subjectto permanent elongation Further,the buckets in thetransporter may be dueto wear as they are used for long time. painted with paints of differentcolors corresponding Accordingly, meansfor making chain elongation to different capacities or kinds of cargo. This permits uniform is necessary. increase of operation control efficiency and Further, in orderto facilitate the operation of 125 improvement of safety control in addition to giving coupling a bucket to chains, the link pitch of which is an aesthetic effect or fashionable feature.

not uniform, it should be possible to reduce or Moreover, the bucket body may be made of a increase the distance between the front and rear synthetic resin depending on the type of cargo support points of the bucket. conveyed. The synthetic resin bucketwill permit Referring to Figure 34, a pin 601 outwardly 130weight reduction, increased mass production GB 2 189 765 A 10 control property and cost reduction of the vibration amplitude limiting means for guiding transporter. Further, where the bucket is made of a rollers of said endless chains, said vibration transparent synthetic resin, the supervision may be amplitude limiting means being provided before extremely facilitated. and/or after said chain wheels andlor intermediate 70 positions between adjacent chain wheels.

Claims (1)

1. CLAIMS 9. The cargo ship with transporting apparatus according to claim 4,

   wherein each bucket in said 1. A cargo ship with transporting apparatus vertical bucket conveyor has a flapping member comprising: capable of engaging the succeeding bucket.

   first conveying means disposed in the hold for 75 10. The cargo ship with transporting apparatus conveying cargo horizontally in the longitudinal according to claim 9, wherein said flapping member direction of the ship; is made of a flexible material.

   second conveying means accommodated along 11. The cargo ship with transporting apparatus the opposite side gunnels of the ship for conveying according to claim 4, wherein each bucket in said cargo horizontally, said second conveying means 80 bucket conveyor has a bottom made of an elastic being rotatable by Win a horizontal plane; and material and a chain wheel provided at a discharging third conveying means forvertically conveying end, atwhich each bucket is inverted round said cargo received from andto be supplied to saidfirst chain wheel, is provided with an urging rollerfor and second conveying means. urging the elastic bottom of the bucket.

   2. The cargo ship with transporting apparatus 85 12. The cargo ship with transporting apparatus according to claim 1, wherein at least either one of according to claim 4, wherein said vertical bucket said first and second conveying means is a belt conveyor is a Z-shaped continuous bucket conveyor conveyor. comprising:

   3. The cargo ship with transporting apparatus four parallel endless chains passed round a according to claim 1, wherein at least one of said 90 plurality of chain wheels and simultaneously driven first, second and third conveying means is a screw by a drive chain wheel; conveyor. a plurality of boat-like buckets each having 4. The cargo ship with transprting apparatus opposite side coupling points coupled to the inner according to claim 1, wherein said third conveying two of said parallel endless chains and opposite side means is a vertical bucket conveyor. 95 rear coupling points coupled to the outer two of said 5. The cargo ship with transporting apparatus endlesschains; according to claim 4, wherein said vertical bucket a frame accommodating said endless chains, conveyor includes vibration amplitude limiting chain wheels and buckets.

   means. 13. The cargo ship with transporting apparatus 6. The cargo ship with transporting apparatus 100 according to claim 12, wherein each said bucket has according to claim 4, wherein said vertical bucket a link spaced apart a predetermined distance from a conveyor includes three-point coupling means. corresponding chain and rotatable about an axis 7. The cargo ship with transporting apparatus extending beneath the bottom of the bucket, a shaft according to claim 4, wherein said vertical bucket extending from the other end of said link, and a conveyor comprisesfour parallel endless chains 105 stopperfor restricting the rotation of said link.

   passed round a plurality of chain wheels, a plurality 14. The cargo ship with transporting apparatus of buckets coupled ata uniform interval to said according to claim 13, wherein said link is rotatably endless chains and driven for excursion by a drive mounted in a bracket secured to the side wall of the chain wheel, and a bucket coupling device for said bucket and said shaft does not penetrate said bucket.

   vertical bucket conveyor, said bucket coupling 110 15. The cargo ship with transporting apparatus device comprising: according to claim 14, wherein said bracket has a a pair of elongate transversal coupling members notch for allowing rotation of said shaft.

   respectively coupled to thefront and rear ends of the 16. The cargo ship with transporting apparatus underside of the bottom of each said bucket, one of according to claim 14, wherein a link provided at a said coupling members being secured atthe 115 rear coupling point has an arm striding an inner opposite ends thereof to the bucket bottom, the endless chain and coupled to an outer endless chain.

   othercoupling member being pivoted to the 17. The cargo ship with transporting apparatus transversal centerof the bucket bottom, and said according to claim 13, wherein each said bucket has coupling members being coupled at the opposite a pin outwardly projecting from each side wall and ends to said endless chain via lever mechanisms and 120 loosely fitted in a bush provided in a link of a chain linkmechanisms. and extending overthe entire width of the link.

   8. The cargo ship with transporting apparatus 18. The cargo ship with transporting apparatus according to claim 4, wherein said vertical bucket according to claim 17, wherein said pin or bush or conveyor comprises both of them are made of tenacious steel.

   four parallel endless chains apssed round a 125 19. The cargo ship with transporting apparatus plurality of chain wheels and simultaneously driven according to claim 4, wherein each bucket in said bya drive chain wheel; vertical bucket conveyor is made of a transparent a plurality of buckets each having front and rear material at leastfor a portion corresponding to a coupling members coupled to said endless chains; supervising point.

   and 130 20.The cargo ship with transporting apparatus 11 GB 2 189 765 A according to claim 4, wherein each bucket in said vertical bucket conveyor is made of a synthetic resin.

   21. The cargo ship with transporting apparatus according to claim 12, wherein a portion of said 5 frame is made of a synthetic resin.

   22. The cargo ship with transporting apparatus according to claim 21, wherein a portion of said synthetic resin is transparent or colored.

   23. The cargo ship with transporting apparatus constructed, arranged and adapted to operate substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.

   Printed for Her Majesty's Stationery Office by Croydon Printing Corn pany (L1 K) Ltd, 9187, D89911685. Published by The Patent Office, 25 Southampton Buildings, London, WC2A 1 AY, from which copies may be obtained.