US1649785A - Concrete-distributing apparatus - Google Patents

Description

Nam 15 927.,

A. T. SCANNELL CONCRETE DISTRIBUTING APPARATUS Filed Auz. l

V 3925 gheets-shjfi Nov. 15, 1927.

' 1,649,785 A. 'r. SCANNELL CONCRETE DISTRIBUTING APPARATUS Filed Aug. 1 1925 Nov. 15, 1927..

A. T. SCANNELL CONCRETE DISTRIBUTING APPARATUS w w wz Eli/677157 11755736 -TScanmeLL lll lnllll lllllllll lll'lll w WM w ALBERT T. SCANNELL,

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

CONCRETE-DISTRIBUTING APPARATUS.

Application filedAugust 1, 1925. Serial No. 47,521.

My invention relates to improvements in concrete distributing apparatus.

Equipment of this character as used heretofore has consisted of a tower, a bucket for elevating the concrete, a chute or chutes supported by the tower and arranged to be ele- 'vated as the work progresses, and a hopper for receiving the concrete from the bucket and discharging it into the upper end of the chute. Since the tower is of skeleton construction, it is usually made large enough to permit the bucket to travel up and down inside the same, although in some cases it is much smaller, whether of skeleton construetion or made as a solid mast, in which case the bucket travels up and down near one of the outside faces thereof. lVhere this latter arrangement has been attempted, the bucket has been provided with a gate at the bottom, arranged to discharge the concrete .into a trough or chute which passes through the latticed towerfrom one side to the other or around the same, to the upper end of the main chute, or, in some cases, the upper end of the main chute has a small hopper mounted thereon and spaced from the tower by means of brackets, permitting the bucket to travel upwardly between said tower and said small hopper discharging into the latter through a bottom gate. With most of these prior arrangements, wherein a tower of small cross-sectional area is employed, it is necessary for the operator to use considerable care in order to stop the bucket at the proper height in the tower,

to permit the discharge of its contents through the bottom gate. An elevation thereof beyond a certain limit would result in dama e to the apparatus.

One ofiject of the present invention is to provide a dumping bucket arranged to slide up and down on one face of the mast and to tip when it reaches the proper height on the mast to discharge its load of concrete, and which if elevated beyond the proper point will simply continue to ascend in inverted position without damage to the equipment. Such manipulation by the operator is obviously more rapid than one in which considerable care is required, the construction also permitting of the use of a" suitable receptacle, container or hopper which may be fas toned directly to the mast, and hence made larger than in the other cases referred to.

Another object is to mount the sliding bucket on the side of the mast adjacent the receptacleor hopper; in other words, on a face at right angles to the face near which the hopper is located instead of on the opposite side of said mast, and to extend the hopper to one side so that the bucket may dump directly into it.

A further object is to provide means .for properly bracing the mast at suitable intervals without interfering with the vertical adjustment of the hopper or the up and down movement of the bucket, or of a material hoist, each of which may operate on a. different face of the mast.

In erecting prior towers of small horizontal cross-sectional area, i. e., so-called lllZlStS, it has been necessary to use a gin pole of considerable length to raise the successive ::ections. An additional object of my invention is to provide a mast or tower consisting of vertical half-sections which are fastened together in offset or staggered relation lengthwise, a short erecting pole being bolted to each half-section before itis raised, whereby each half section and its extension serves as a gin pole to raise the succeeding section, two such short poles serving for the entire series by using them alternately.

In the accompanying drawings I have illustrated one form of apparatus which embodies the invention. I Fig. 1 is a side elevation of the equipment.

Fig. 2 is' an elevation at right angles thereto.

Fig. 3 is a section through the tower on line 33, Fig. 1.

Fig. 4 is a similar section showing the construction of the two half sections before they are fastened together.

Fig. 5 is a diagram illustrating the erec-- Fl 2. I

%he mast is constructed preferably in halfsections, as shown in Fig. 0

cross-section comprising ur vertical com- 5, the complete pression members 10, preferabl steel channels arranged as two pairs wit the flanges of each palr extending toward the other and the webs parallel. Two inner flanges of each pair are connected by lacing 11, and the webs in the same plane by transverse plates 12, as shown in Figs. 1, 2 and 3. Before assemblying the half-sections they are fabricated as shown in Fig. 4, each half consisting of two channels with its connecting lacing and a single series of plates projecting from one of the channels.

The lowermost section of the mast is constructed preferably as shown in Fig. 5; that is to say the lower part of it is complete, consisting of four channels with complete connecting lacing and transverse plates, as in Fig. 3, the projecting upper part being only a half section. The second and succeeding upper sections are constructed inhalves,

as shown in Fig. 4, and assembled alternately in staggered relation. To facilitate this assembly, a short erecting pol-e 13, in the form of a pipe with a swivel head at the top, is bolted to the upper end of a section before the same is erected, and after erection is used as a gin pole tohold a block and tackle by which the succeeding section is raised and held until it can be bolted to the mast as thus far erected. This succeeding section also has a short pole bolted thereto, similar to pole 13, which is used in-like manner to raise the next succeeding section. the poles 13 being unbolted and used repeatedly in this manner until the tower is completed. The last section, as shown in Fig. 5, is a short section. After it has been erected, the transverse frame or cat-head 14 is raised and bolted to the top of the tower, said frame having a sheave 15 over which a steel cable 16 runs, one end of which is fastened to the drum of a hoisting engine (not shown) and the other end of which is fastened to the frame 17 of a hoist or dump bucket 18.

The frame 17 is preferably of rectangular form, with plates- 19 '(Fig. 11) riveted to the top and bottom thereof and to transverse members 20, each of the latter carrying a metal filler bar 21 arranged to slide up and down between the flanges of opposite channel members (see Fig. 9). Each filler bar has a plate 22 secured thereto which serves to lock the sliding carriage thus formed. to the vertical track, to'prevent withdrawal thereof as the rectangular frame slides up and down. The lower end of said frame has a pair of side plates 23 (Fig. 10) sev cured thereto.

A shaft 24 is mounted in alined openings in said plates and passes through 0 enings in the forgings 25 secured to the buc ket 18, asv shown in Fi s. 10 and 11, whereby said bucket is pivota ly mountedon said shaft. Said pivoted support is offset with respect to the center of gravity of the bu' -iket so that the latter tends to tilt memes 17. The bucket is dumped when it reachesthe proper height by means of rollers 27, 28, which engage guide members, hereinafter described, throwing the bucket into dumping position, as shown in dotted lines in Fig. 10. This movement of the bucket about its pivotedsupport is limited by stops 29, which are riveted to the plates 23.

As shown in Fig. 10, the center of gravity of the combined frame and dump bucket is substantially in a central vertical plane, passing through the channel members 17. With th1s arrangement, the combined frame and bucket hangs substantially vertically at the end of the hoistingcable and the plates 22 (Fig. 9) slide up and down behind the flanges of the channel members 10 without substantial friction. It will be seen that, as a result of th1s arrangement, no anti-friction rollers are employed, such as are frequently used with hoist bucket frames. The bucket, as shown n Fig. 10, is preferably symmetrical with reference to said vertical plane, previously referred to, but may be of any other suitable configuration as long as it is so mounted A suitable receptacle, preferably 'in the form of a hopper 30 is mounted on a pair of horizontal members 31, the latter being secured to a vertical rectangular frame consisting preferably of angle irons 32 connected by transverse members 33, in addition to the transverse members 31. As shown in Figs. 8 and 9, the angle irons 32 of the frame have short lengths of angle irons 34 riveted thereto, as well as castings 35, the latter projecting around one of the flanges of one of the channel members 10. After the hopper has been bolted in position, the brackets 35 on the same corner of the tower are removed so as not to obstruct the up and down movement of the bucket. (See Figs. 8 and 9.) The rectangular frame is therefore arranged so that it may slide up and down. on one face of the tower, at an angle to the face on which the bucket frame slides, (in this case at right-angles) and may on which the bucket slides. With this arrangement, as shown in Fig. 9, the vertical chute.

Transverse members 40 (see Figs. 6 and 9) are secured in parallel relation to the top of the hopper and have vertical plates 41 secured thereto, the latter carrying angle irons 42, 43, arranged, as shown in Fig. 6, to form dumping guides which engage the rollers 27, 28, on the bucket 18. These dumping guides are so disposed that during the upward movement of the bucket the latter is tilted out of its position of stable equilibrium, whereupon the roller 27 rides outwardly upon the horizontal part of the angle guide 42 as the bucket is tipping to inverted position, and if the operator continues to hoist the bucket after it is tipped as far as possible to discharge its contents (determined by the stops 29) it continues its upward travel in substantially inverted position, without damage to the equipment. During its descent, the roller 28 first en.- gages the upper end of the guide 43 thereby swinging the bucket outwardly a slight amount, sufliciently to insure that the :roller 27 will engage the horizontal path of the angle guide 42, after which the bucket rights itself during its continued downward movement.

The lowerend, of the hopper frame 32 carries a projecting bracket 45 which supports the upper end of the chute 46 through which the concrete flows after it is discharged from the hopper. The upper end of said chute is provided with the usual funnel shaped inlet 47 and swivel support 48, and its outer end is supported by a cable 49 secured to a bracket 50, also mounted to slide on the same face of'the mast on which the hopper frame slides, and capable of being bolted thereto at any suitable point in the height of said mast. As shown in Fig. 2, this bracket 50 is preferably connect-- ed b a chain 51 to the hopper frame 32 beneath it, whereby a rope, passing around a block and tackle at the top of the tower may be conveniently used to lift the bracket, hopper and chute at the same time. In this way, the proper distance between the bracket and the hopper is maintained and the angle of the chute is not changed.

The tower is suitably braced preferably by means of guy-ropes 52 secured to opposite ends of cross-arms 53 secured prefe'rably to each section of the tower. Said cross-arms are mounted preferably on brackets 54 on the face of thetower opposite the hopper and are spaced from the tower to provide suflioient clearance for the bucket to.

slide up and down without interference. In

this way, three faces of the tower are unobstructed, and, hence, are available not only for supporting the hopper and associated parts, but may be used also as vertical guides or tracks for the elevation of material of various kinds. For example, asecond concrete dumping bucket, similar to that shown herein, may be mounted on the opposite side of the tower, as shown in dotted lines in Fig. 1, the arrangement being preferably such that the two buckets are suspended from a single cable so that when one is ascending the other is descending. With such an arrangement, the hopper 30 would be extended on both sides of the tower, also shown in dotted lines in said figure.

A material hoist may also be provided, if desired. It consists of a platform 55 projecting from a frame 56 arranged to slide up and down on any of the three faces of the tower, not being used at the time as a runway for an elevator of some kind. For example, it may be on the same face of the tower as that on which the hopper is supported, as shown in Fig. 2. The arrangement of said sliding frame is maybe somewhat similar to the frame which supports the hopper, with the addition of rollers 57, which ride on a track consisting of angle irons 58 secured to the channel members 10 by angle brackets 59 (Fig. 12) or said frame may be otherwise mounted in any well known or suitable manner. This track extends from the ground to a point somewhat beneath the hopper frame, and is extended in height as the hopper frame is raised. The material platform is raised and lowered by means of a cable 60 passing over sheave 61 supported on a bracket 62 which is bolted to the mast at various points in the height thereof, similarly to the bracket 50. The platform of said material hoist may be sufficiently large to accommodate several wheel barrows. If a smaller material hoist is desired, it may be constructed to slide on the opposite face of the tower from that on which the concrete bucket slides, a rectangular frame, similar to frame 17 being provided, and provided with a small platform at the bottom.

At the end of the chute 46 is a second chute 63 which may be swivelly supported, its outer end being supported by a cable 64 secured to the tower. A third chute section 65 and a fourth chute 66 may also be employed, if desired. Said third section maybe secured to the end of the second section by meansof a cable 67 and Windlass 68, the other end of said section being supported by a gin-pole 69 andtackle 70. With this arrangement, when it is desired to move the third chute section to some new location it can simply be lowered to the ground or building under construction and lifted around to the new position while the second chute section 63 is being swung to its new position,

after which the third section can be elevated to the proper position. The Windlass is operated by a man sitting on the second section. It is obvious that certain of the various combinations disclosed herein may be used without the others.

The tower structure is not limited to the .use of channels or the staggered arrange ment thereof or other specific structural de tails, as various changes may be made in all of the different parts of the apparatus described herein, within the scope of the invention.

What I claim as new is:

1. Apparatus of the class described com prising four upright corner members forming a mast of relatively small cross-sectional area, guy-wire attachments secured to and spaced from one face of the mast, and receptacles guided by the corner members and and slidable on two other adjacent faces of the mast and extending beyond the respective faces, said receptacles being arranged for movement on said faces without obstruction of one receptacle by the other or by said guy-Wire attachments.

2. Apparatus of the class described comprising four upright corner members forming a mast of relatively small cross-sectional.

area, guy-wire attachments secured to and spaced from one face of the mast, and receptacles guided by the corner members and slidable on two other adjacent faces of the mast and extending beyond the respective faces, said receptacles being arranged for .movement on said faces without obstruction of one receptacle by the other or by said guy wire attachments, the fourth face of the mast being available for a similarly slidable receptacle when desired.

3. Concrete distributing apparatus comprising a mast, a hopper against one face of the mast, a material hoist on said face beneath said hopper, and a concrete hoist on each of the adjacent faces of said mast, each of which concrete hoists is arranged to discharge its load into said hopper.

4. In combination, a mast having a plurality of side faces, a chute having its upper end supported by said mast adjacent one of said faces, a hoist bucket pivotally supported by a frame, means for raising and lowering said bucket and frame along a. face of said mast adjacent said first face, means for conveying concrete from said bucket to the upper end of said chute, and means for tilting said bucket about its pivotal support at the proper elevation,

5. Concrete distributingapparatus comprising a mast, a hopper against one face of said mast, a material hoist on the same face.

beneath said hopper, and a, concrete hoist on the adjacent face.

6. Concrete distributing apparatus comprising amast, a hopper against one face of" said mast, and av concrete hoist on each of the adjacent faces of said mast, eachof which hoists is arranged to discharge its load into said hopper.

7. Concrete distributing apparatus comprising a mast, a hopper against one face of said mast, a material hoist on the same face beneath said hopper, a concrete hoist on the adjacent face, and guy-rope attachments secured to the face opposite said hopper.

8. Concrete distributing apparatus comprising a mast of rectangular cross-section, a hopper secured to one face thereof, a concrete hoist on an adjacent face thereof, brackets projecting from the face opposite said hopper, and guy-rope attachments secured to said brackets and spaced from said tower. 9. A mast for concrete distributing apparatus comprising vertical superimposed sections having guy-wire attachments secured to one face thereof but spaced therefrom to provide a clearance whereb the remaining faces of said mast are avai able for the elevation of material.

10. A mast for concrete distributing apparatus comprising vertical superimposed sections having brackets secured to one face thereof, cross-arms carried by said brackets whereby they are spaced from said mast; said arms extending beyond opposite faces of said mast, and guy-ropes secured to opposite ends of said cross-arms and extending radially to suitable attachments whereby the remaining faces of said mast are available for the elevation of material.

11. The combination with a mast one side of which comprises a track, of a. container secured to said mast and slidably adjustable on another side thereof, a frame slidable on said track, a guide on said container, a tiltable bucket on said frame andoutside of said mast, means on said bucket engageable with said guide for tilting said bucket to dump into said container, and members for limiting the tilting movement of said bucket in one direction and preventing tipping in the oposite direction, said frame being freely slidable on said track above the normal dumping position of said bucket.

12. Apparatus of the class described, comprising fourupright corner members forming a mast o'f relatively small crossssectional area, one side of-whichcomprises a track, a container secured to said mast, a frame 'slidable on said track, a guide on said container, a tiltable bucket on said frame and outside of said mast, means on said bucket engageable-with said guide for-'tilti'ngsaid bucket to dump. into said container, and members forlimiting the tilting movement of said bucket in one direct-ion and preventing tipping in the oppositedirection, said frame being freely flidable on said track above the normal dumping position of said bucket, said container and guide being slidable vertically on the outside of said mast for causing said bucket to dump at different elevations.

13. Apparatus of the class described, comprising four upright corner members forming a mast of relatively small crosssectlonal area, a hopper frame vertically adj uslable on two of said corner members, a hopper secured to said frame and located outside of said mast, a dump bucket supporting frame located outside of said mast, having sliding engagement with two adjacent corner mean here and locked thereto to prevent lateral movement, a dump bucket pivotally carried by said frame, and means projecting from said hopper for intercepting the upward path of travel of said bucket and causing it to dump, said hopper being extended sulliciently to receive the contents of said bucket and having an opening in the bottom, and a chute for conveying material from said hopper, the upper end of said chute being supported on said hopper frame beneath said opening, whereby a self-contained equipment is provided with the material elevating and distributing equipment outside of said mast. and mounted on the corner members thereof.

14. A concrete hoisting and distributing tower, comprising four upright steel corner members, each having a plurality of flanges, transverse spacing and securing members extending from each corner post to the two adjacent posts to provide a rigid structure. one flange of each post projecting therefrom to form one of a pair of vertical guides, a hopper frame supported on one face of said mast, an eccentrically mounted hopper carried thereby, a dump bucket frame slidably mounted on a pair of said vertical guides on another face of the said mast, a dump bucket pivotally mounted on said frame, and means mounted on said hopper to be enga ed by said bucket during its upward vtravel, causing said bucket to dump, said hopper being extended to a point adjacent the vertical path of movement of said dump bucket whereby the contents of the latter may be discharged into the former.

15. A concrete hoisting and distributing tower comprising four channel members a rranged as the corner posts of said tower and in two pairs, the channel of each pair being arranged with the flanges projecting toward each other and the webs substantially par allel, each inner flange of the same pair being connected to the other by transverse spacing and securing members, the outer surfaces of the corresponding webs of each pair being in the same plane and connected by transverse spacing and securing members, whereby four outer flanges at the corners are left unobstructed to form vertical guides, and a bucket and hopper each having sliding engagement with certain of said corner members, said bucket being arranged to discharge its contents into said hopper.

16. Concrete distributing apparatus com prising a mast, a hopper adj ustably secured to one face thereof, a pair of vertical guides arranged near opposite sides of an adjacent face, a frame engaging said guides to prevent movement away from the mast and arranged to slide up and down on said adjacent face, a bucket pivotally supported on said frame, and relatively stationary means for causing said bucket to tilt and discharge its contents into said hopper.

17 A mast for concrete distributing apparatus comprising vertical superimposed sections having attachments for bracing the mast secured to one face thereof but spaced therefrom to provide a clearance whereby the remaining faces of said mast are available for the elevation of material on the outside of said mast.

18. A material hoisting and distributing mast consisting of sections with means at the end for securing them in vertical alignment. each section comprising four longitudinal corner members with transverse spacing and securing members to forma rigid structure of uniform cross section, each corner memher having a flange projecting therefrom to form guides near opposite sides of each outside face, a vertically movable carriage on one face of said mast interlocked with the adjacent guides to permit up and down movement only, a second carriage secured to the guides on an adjacent face and having means detachably secured thereto permitting it to be locked to the adjacent guidesbut movable vertically thereon, said means when removed permitting said first carriage to slide up and down freely past'said second carriage without interference and means secured to a third face of said mast between said corner guides providing. attachments for bracing the ,mast sections without ohstructing the "other three faces.

In testimony whereof, I have subscribed my name.

CERTIFICATE or CORRECTION.

PntentNo. 1,649,785. Granted November 15, 1927, to

ALBERT T. SCANNELL.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3. line 91, strike out the word "is"; page 4, line 21, claim 1, strike out the word "and"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the'case in the Patent Office.

Signed and sealed this 20th day of December, A. D. 1927.

M. J. Moore,

Seai. Acting Commissioner of Patents.

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