US1424737A - Concrete-mixer loader - Google Patents

Description

V. M. PRICE.

CONCRETE MIXER LOADER.'

APPlTlcAloN FILED MN. e. 1920.

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CONCRETE IVIIXER LOADER.

APPLICATION FILED IAN. 6.1920.

Patented Aug. I, 1922.

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V. IVI. PRICE.

CONCRETE MIXER LOADER. `APPLICATION. FILED, MN. 6. 1920. ,424,737. Patented Aug. l, 1922;

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CON CRETE-MIXER LOADER.

Application filed January 6, 1920.

T 0 all fio/tom it may concer/n.'

Be it known that I, Viiicin lli/i. Prion, a citizen ofthe United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful improvements iii Conci'ete-hlixer Loaders; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use 'the same.

rThis invention relates to a machine intended espeeially for facilitating` the loadimprovement over the concrete mixer loader disclosed in Patent No. 1,340,345 granted May 1S, 1920.

The invention has for its object the provision of a novel arrangement as over the construction disclosed in said patent, where'- by to simplify the loader, and to enhancethe utility and; etiiciency thereof.

Another object is the provision of such a loader having bins for receiving the materials, such as cement, sand, rock and gravel, means for elevating the materials to discharge them into the bins and a novel arrangement for directing the material into the proper bin.

A further object is the provision of novel discharge means for the bins wherebyto deliver the material into the hoisting loading skip of a concrete mixer. v

A still further object is to operatively connect the loader and mixer whereby one is pulled or drawn by the other from place to place and providing a novel cooperative relation between the delivery oi' discharge ing means of the bins and the hoisting load` ing skip of the concrete mixer in order that the material can be delivered to the skip in measured quantities` and prepared for delivery to the mixer during the operation of the mixer.

lVith the foregoing and other objects in View, which will be apparent. as' the desci'iption proceeds, the invention resides inA the construction' andv arrangement of 'parts hereinafter described and claimed it being understood that changes can be made within the scope of what is claimed without departing from thespirit of the invention.

rlhe invention is illustrated'in the accom` panying drawings, wherein Figure 1 is a side elevation of the'con-v Specification of Letters Patent.

ing of concrete mixers with sand, cementl and rock or gravel, and is particularly .anv

Patented Akira. 1, i922,

Serial No. 349,737.

crete mixer and the loader, portions being,

broken away.

Fig. 2 is an enlarged plan view of the loader showing the hoisting loading skip of the mixer in section. l

Fig. 8 is a rear view 0f the loader.

F ig. il is an enlarged vertical section:

through one of the gates and discharge chutes of the bins.

'ln carrying out the invention, there is provided a suitable vehicle `framel mounted upon the front wheels 2 and the rear propellingwheels 3, and carrying a suitable internal combustion engine 4.' The-ve-l hicle or wheel is preferably self-propelled by the engine, the wheels 2 forming a `partY ofhsuitable st-eering gear, and the wheels 3 being operatively connected, as at 5, to the engine.

The loader can be used with various concrete mixe-rs, a typical mixer being shown,`

and it comprises the frame (i mounted on the wheels 7 and carrying the mixer 8. The fra-me work 10 carries aswinging arm 11'to which is secured thelioisting loading skip 12, which is elevated by one orfmore cables 13 passing over a guide roller 11i and wound upon a drum .15. The skip 12 has a panshaped portion to rest on theA ground ;when the skip is swung downwardly as seen in F ig. 1, and said pan is extended into a spout 1S, which when the skip is raised will register with the filling spout 19 of the mixer 8, so that the material will gravitate from the skip through the spout 18 into the mixer. The'pan-portion of the skip has a longitudinal partition 17 dividing said skip i into receptacles for sand and gravel or rock 22 and 23 disposed'side by side, and having.

a' common partition 23a separating them,

and the `bottom wall of said bins slope to the rear wall which is provided adjacent to the 1 bottom with a discharge opening 24 for each bin normally closed by a Vvertically slidable gate or valve 24.

lOO

rocl,'gr'avel and sand into the bins, an inscoop away from the loader behind a pile clined runway or incline 25 is carried by the forward portion of the frame 1 and frame work 16, and its upper end curves over and overhangs, asat 26, bins 22 and 23. The lower portion of the incline is widened and has a loose section 27 pivoted, as at 23, to the lower end of the incline and curved from the incline toward the horizontal away from the machine, and the portion 2T is providedr with wheels or rollers 29 at the opposite sides to rest on the ground and thus support the lower edge of the portion 27, in proper relation to the ground. The portion 27 can swing upwardly and downwardly according to the unevenness of the ground.

Mounted on the upper portion of the frame work 16, above the upper end of the incline 25, is a transverse drum 30 carried by a shaft 30', which is operatively connected by a vertical shaft 31 with the engine, and a cable' 32 is connected to said drum to be wound thereon and unwound therefrom, The free end of this cable 32 is connected to the bail 33 of a scoop 34, and a clutch 38 is provided between the drum 30 and shaft 30 for connecting said drum to and. disconnecting it from theengine, at the will of the operator. By opening the clutch,l the cable 32 can be unwound for pulling the of sand, gravel or rock, and by throwing the clutch in, the cable will be wound. upon the drum for pullinO` the scoop to and up the ineline.

The scoop when pulled tothe upper end of the incline discharges over said upper end of the incline and over the longitudinal partition 23a, and in order to direct the material into the proper bin, a longitudinal chute or wing 35 is hinged, as at 36, to the upper edge of the partition 23a, and can be swung toward one side or the other according to the material being elevated. The bin 22 is for holding rock or lgravel, andthe bin 23 for holding sand, so that when the rock or gravel is beingelevated, the wing 35 is swung over the bin 23, seen in dotted lines in Fig. 3, thereby deflecting the rock and gravel into the bin 22. lVhen sand is being elevated, the chute 35 is swung over `the bin 22, as seen in full lines in F ig. 3, thereby deflecting the material into the bin 23.. Referring to Fig. 3, the chute 35 is supported in dotted line position by one side of the frame, and is supported in full line positions by means of a stop or bracket 45 carried by the framework` 16 at the opposite side. i

.A transverse roller 39 is preferably provided over the lower end of the incline 25 bein 'carried bT braces 40 secured to and ex- D scoop to the lower end of the incline and up over the entrance portion 27 to pass up the incline. n

A transverse bumper bar 43 is carried by springs 44 by the framework 16 above the upper end of the incline, to cushion the scoop 34 when it is pulled to the up 3er end of the incline and swung upwardly to dumping position., as seen in dotted lines in Fig. 1.

The gates 24 have means for raising` and lowering` them, and for this purpose, said gates have rack teeth 46 meshing with pinions 47 on transverse shafts 43 having hand wheels 49, which when turned will raise or lower said gates to control the flow and discharge of material from the bins. tSaid bins have discharge spouts 50 extending from the rear wall thereof to deliver the material from the openings 24.

In order to direct the material from the spouts 50 into the receptacles of the skip 12,7 delivery chutes 51 are provided, one for each spout 50 and said chutes 51 are pivoted, as at 52, upon hinge leaves 53 mounted for vertical movement upon a transverse rod v54. The chutes 51 can thus be swung on the pivots 52 sidewise, to deliver the material into the respective receptacles of the skip 12, and to spread the material in such receptacles, and the hinge rod 54 enables the chutes 51 to be swung upwardly and 'material by gravity to the skip.

Cables 55 are connected to said chutes 51 and pass over rollers or pulleys 56 carried by the bins and counterweights 57 are connected to said cables for raising the chutes 51 and holding them in raised position when not in use.

In operation, t-he scoop 34 is used for conveying the material from piles to the loader and for elevating the material to discharge it into the bins. Thus, when the clutch 33 is opened, the cable 32 can unwind to enable the scoop 34 to be moved behind a Vpile oil sand, rock or gravel, and then by throwing` .in the clutch, the cable will. be wound up to pull the scoop to the incline, thereby filling the scoop and moving it tothe loader and up the incline 25.

When the scoop reaches the upper end of t-he incline, it is raised, being stopped by the bumper bar 43, and the material is dumped into the bins. If sand is being carried by the scoop, the chute 35 is swung against the bracket 45 so that the sand in dropping onto said chutewill be delivered into the bin 23, whereas if rock or gravel is being carried by the scoop, the chute 35 is swung toward the opposite side. This operation is repeated to feed the material into the bins,

and the chute is swung back and forth so that the materials are delivered to the proper bins, and this operation can be repeated and continued during the operation of the mixer without interruption.

To deliver the material to the mixer, the skip l2 is lowered, so that the pan thereof rests on the bars 9, and the chutes 5l are then swung downwardly and are swung transversely so as to project over the proper receptacles of the skip pan. Then, by opening the gates 24, the material will be discharged through the spouts 5() and will flow' down the chute 5l into the skip, and such materials can be measured in the skip by suitable graduations therein, and the flow can be shut off when the proper amounts have been delivered into the skip. The ce ment is then added to the skip, and by winding the cables 13 on the drum l5, the skip l2 is swung upwardly, the chutes 51 being thereby swung upwardly out of the way, and the spout 18 being` brought into registration with the mixer spout 19, so that the material will be dumped into the mixer. Then, during the operation of the mixer, the skip l2 can be returned and the chut`es 5l swung downwardly over the skip, so that the skip can be loaded during the mixing of the previous charge, whereby the mixer can be refilled as soon as emptied,` this operation being' repeated, and the bins containing a suficient supply of material so that no delay results in mixing the batches of concrete. T he bins can thus be filled during the operation of delivering the material to the skip and from the skip to the mixer, and the two operations can be carried on simultaneously without interference or interruption, thereby avoiding` delays and saving time as well as labor.

Having thus described the invention, what terial into one bin or the other, and means for receiving the materials from all of said discharge openings for delivering same to a mixer.

2. The combination of a concrete mixer having a hoisting loading skip to move upwardly and downwardly, a loader having bins for holding different materials and means for delivering such materials to t-he skip when the skip is lowered, and means connecting the mixer and loader for the movement of one with the other and arranged to support said skip in position to receive the materials.

3. The combination of a concrete mixer having a hoisting loading skip to move upwardly and downwardly, a loader having bins for different materials and means for delivering such materials to said skip when the skip is lowered, and draw bars connecting the mixer and loader for moving one with the other and arranged to support said skip in lowered position for receiving the materials.

4f. The combination of a concrete mixer having a hoisting loading skip, a loader having bins for different materials and means for delivering the materials to said skip when it is lowered, and draw bars connecting said mixer and loader for moving one with the other and for supporting said skip when it is lowered, said draw bars being offset downwardly between their ends to slide and rest on the ground.

5. A concrete mixer loader comprising bins for different materials having delivery openings and Chutes for controlling the delivery of said materials, spouts extending from said openings, a transverse hinge rod extending under said spouts, hinged members mounted on said rod under the spouts to swing upwardly and downwardly, and chutes extending across said members from under the spouts and pivoted on said members to swing sidewise.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

VIRGIL M. PRICE.

Witnesses:

F. W. VVEBNER, J r., ALICE C. AYLwoR'rH.

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