US1304774A - humphries - Google Patents

Description

J. P. HUMPHRES.

, LOADER APPLICATION FILED/APR. 27| 1917- V Y. 1,304,774. Patented May 27, 1919;..

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I. P. HUIVIPHRIES.

LOADER.

APPLICATION FILED APR.27. |917.

1,304,774. Patented My 27, 1919.

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J. P. HUMPHRIES.

LOADER.l

APPLICATION FILED APII.2I. I9I7. 1,304,774. Patented May 27, 1919.

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JIP. HUMPHRIESL- LOADER.

APPLICATION FILED APII.27. I9I7.

Patented May 27, 1919.

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JOSEPH PHAEES HUMPHEIES, OE MILWAUKEE, WISCONSIN, ASSIGNOII. To STAMP LOADING MACHINE COMPANY, A CORPORATION OE WISCONSIN.

LOADER.

To all whom z't may concern:

Be it known that I, JOSEPH PHARES HUMPHRIES, a citizen of the United States, zand resident o-f Milwaukee, .in the county'of Milwaukee and State of Wisconsin, have 1nvvented new and useful Improvements in Loaders, of which the following is a description, reference being had to the accompanying drawings, which are a part of this speciication.

The invention relates to loaders.

"The invention is more particularly. de

signed to provide a device for supplying large concrete mixers with material.

In paving and in other work where large concrete mixers are employed the common practice has been to dump the Ingredients from the wagons upon the ground near the mixer and then shovel the same into wheelbarrows and convey it to the mixer for u se. This system is both laborious and expensive and the present device has been designed to supplant this o'ld method by prOvidin-g a construction in which the materlal to form the concrete is picked up from Its place of deposit and carried directly to the. mixing drum and the invention further provides for delivering the ingredients in the proper quantities. A

The invention further consists in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof'.

In the drawings:

F'gure 1, is aside elevation of the device embodying the invention, parts being broken away and parts being shown in section;

Fig. 2 is a plan view of the device, parts being broken away;

Fig. 3 is a section taken on the l1ne 3 3 of Fig. 1;

Fig. 4 is a section taken on the line 4-4 of 'F ig. 1;

Fig. 5 is a section taken on the l1ne 5-.5 of Fig. 1;

Fig. 6 isa section taken on the line 6 6 of Fig. 3.

Specication of Letters Patent.

Application lecLAprl 27, 191'?. Serial No. 164,868.

Patented May 27, 1919.

shaft 33 which is connected through a clutch controlled sprocket and chain connection A with a shaft B which is connected by Ia direct gearing connection C with a shaft D. The shaft B has a change speed sprocket and chain drive connection E with the rea-r axle 12 and the shaft B has a change speed sprocket and chain drive connectiony F with the rear axle 12. These connections are yadapted to drive the rear axle l2 either forward or back at different speeds and the loader is steered through mechanism designated generally by the letter G but as these features do not constitute a part of the loading mechanism proper further description is deemed unnecessary.

The Conveying mechanism com-prises a pick up conveyer and an lelevating conveyer. The material picking up devices' are mounted at the rear end of the machine at both sides thereof and as the construction of both are the same onlyvone need be described.

Each device comp-rises a v horizontally swinging channel shaped bracket 13 having bosses 14 journaled upon a drive shaft 15,

the lower boss resting upon a journal `bracket 1'6 for the shaft 15, said bracket having a cross web 17 which forms with the other parts a rectangular Iframe, Fig. 3. A shaft 1-8 is journaled in this frame and carries a bevel gear 19 meshingwith a bevel gear 20 on the shaft 15 whereby the shaft 18 may be rotated in any horizontal position of the bracket. Journaledat their inner ends upon movable boom. Secured to the sides of these ends of members 21 are connected across in 4 -it along in the chute 22 delivering it out channel bars and extending down below the e same and extending from the inner. ends to a point near the outer ends thereof 1s a chute 22 having a discharge spout-23, The outer spaced relation near their front ends (by a shaft 24 carrying a sprocket 25, Fig. The shaft 18 carries a sprocket 26 and an endf less chain 27 is mounted on these sprockets mounted on the shaft 45 and adapted to be brought into driving engagement with a friction wheel .48 mounted on the shaft 37. `The shaft 45 has a swivel bearing 49 at one end andan eccentric bearing 50 at the other whereby the shaft may be moved laterall through the lever 51 to bring the wheel 4 linto or out of engagement with the wheel 48. On the release of the pawl and ratchet lock the conveyer frame may be lowered to the heightdesire'd. v

After the material is brought into the 25 and 26.` Secured at certain distances\bins 29 it is elevated into the storage bins along the length of the chain 27 and extending outwardly therefrom are a4 plurality of pusher and lifting blades 28, which on the drive of the chain, through the rotation of the shaft 18 through the gearing connecc -tion with the drive shaft 15, cause the' blades to liftand push'the material up and move through the spout 23 intol a temporary storage bm 29, Flg. 3.

The drive shaft 15 is driven fromv the motor or engine 11 in the following manner; The drive wheel v30 of the motor is connected by a belt 31V with a 4drive pulley 32 mounted upon. a shaft 33 carrying a sprocket 34 loosely mounted thereon but adapted to be secured thereto in driving relation through any suitable clutch, such as the clutch sleeve 35 slidably but not"rotatably mounted onthe shaft 33 and adapted to be Vbrought into interlocking engagement with the gear 34v through. the pivoted lever 36, Flg, 4. A

transversely extending shaft 37 is mounted on the rear end of the frame and' carries bevel gears 38 which mesh respectively with bevel gears 39 carried by each of the shafts 15 and a sprocket 40 is mounted on this shaft and connected by a chain 41 with thesprocket 34 whereby when the clutch sleeve 35 is in engagement with the sprocket 34, the shaft '33 driven by the motorv will through the chain and sprocket drive 34, 41

and 40 drive the shaft 37 which through the gear connection 38 and 39 will vdrive the shafts 15 which through their gear connections 20 and 19 will drive the'shaft 18 which as previously described will drive the lifting or picking up' conveyer.

The front ends of the conveyerframe or boom carry rollers 42-to facilitate travel and means are provided for raising and loweringl tion drive'consisting of a friction wheel 47 by devices communicating with the respectivebins. Each of these devices comprises an endless bucket conveyer consisting of an endless chain 52 mounted on sprockets 53 and 54 carried by shafts tively, and a plurality ofdouckets' 57 carried by the chain Figs. 1 and 2, return chutes 57 being provided below-the lower rim of the conveyer to catch any material not delivered tothe upper bln and return it to the bin 29.

This conveyer is driven through the shaft 56 which carries asprocket 58 connected by .a chain 59 with a sprocketl 60 adaptedto be secured torotate with the shaft 37 through a clutch member 61, similar to sleeve 35 and `similarly associated with the sprocket,and controlled through a pivotedolever 62. Thus the'rotation of the shaft 37 also serves to drive these bucket'conveyers which take the material delivered from the pick up con- .veyers into the bins 29' and raise this mate- -rial upwardly-and conveyv it to the storage bin 63 for several batches). l The storage bin 63 extendsacross the fron upper portionof the frame and is provided with a movable partition 64 which is used to form two bins for diiierent quantities and kinds of material, that is one of the conveying and lifting mechanisms will supply one bin with crushed stonev and the other with gravel or sand and the capacity of the bins is so proportioned as to provide several charges for themixer when they are full.

The bottom of the bin 63 has a plurality of openings 65 therein with chutes 66 communic'ating with these openings. Each chute 1s provided with a bottom closure 67 having a curved bottom 68 and arms 69 pivotally connected atl their upper ends to the sides of the chute, the 'bottom being curved on a circle having the pivotal mounting'as a center whereby portions of the bottom of the closure will contact with the bottom edges yof the chute until completely removed therefrom so that the amount of material delivered from the chute may be regulated. Each closure 67 is opened by means of a rod 70 pivotally connected-to it below the pivotal support and slidably mounted on a bracket 71 carriedby the frame.

The material from the chutes 66 is deliv- 55 and 456 respecered into a stationary hopperA 72, .mounted on the frame and rovided with a lengthwise extendin outlet 7,3 adapted to be closed by a curvedongitudinally extending closure 7 4 having arms 7 5 mounted on a shaft 76 p1votally mounted on the frame and carrying an operating lever 77 whereby the amount of material passing from the hopper may be regulated. A portion 78 of the hopper extends below the outlet 73 and an auxiliary chute 79 forms an extension of this portion. A partition 72 is also provided in this hopper to separate the sand from the stone and provide enough of these' for a' single batch for the mixer. A discharge trough or chute 80 is pivotally mounted on a shaft 81, mounted in a laterally projecting bracket 82 secured to the frame, and the chute 79 projects over the pivotal mounting of the chute 8O so as to deliver the m-aterial thereto. This chute 80 is adapted to be raised and lowered through a cable 83 connected by a yoke 84 with the outer end of the chute and extending upwardly over a guide ulley 85 and thence` around a winding sha t 86 journaled in brackets 87 and 88 on the frame, said shaft having a swivel connection 89 with the bracket 87 and a mounting in an eccentric bearing in the bracket 88, similar in all respects to that previously described for the shaft 45, said shaft carrying a friction wheel 90 adapted to be brou ht into and out of driving engagement wit a friction wheel 91 mounted on the shaft 86 by means of a lever 92 which shifts the eccentric bearing for the shaft. The shaft 86 is secured in different position by a pawl and ratchet mechanism 93. The material from the hopper 72 passes down along the chute 80 into the usual charging hopper for the mixer, the chute 80 being moved up out of the way if desired when the charging hopper of the mixer is elevated.

With the construction above described,

the motor may be connected up with the traction drive to move the machlne to the placel of work. The .machine is brought up so that its discharge chute 8O will be disposed 1n line with the charge hopper of the machine dand the material is dumped near the pick up conveyers, stone on' one side and sand or gravel on the other. These pick up conveyers through the means previously described can be raised and lowered and swung about their support to take up the material within their reach. The-power connections with the engine for drivin these conveyers is established as previous y described and the pusher blades 28 move the material u the chutes 22 into the bins 29 from whence t e bucket conveyers take the material up to the res ective parts of the storage bin from which t e material is dischar ed as needed into the batch hopper from w en'ce it is discharged into lowerin p scope of the appende conveying devices for automatically ing a frame,

sary to su1t the requirements of the work.

It will be noted that the use of the meas-- uring hopper 72 provides for a uniform mix a th1n which cannot be accomplished by the usual oadin from wheel-barrows as they are never loa ed twice the same. i

With this device but one or two men are needed to operate i'tthus doing away with the services of the half dozen or more workmen frequently em loyed'to feed the mixer.

I am aware that t e details of 'construction' of the invention are capable of considerable modification and change and I wish it understood that such changes as come within the claims are within the spirit of my invention.

What I claim as my invention is:

1. A loader for a concrete mixer comprislng a frame, a storage bin carried thereby, y picking up and transporting matemal to the bm from a place of deposit on the roadway, for receiving a batch of material from the bin, means for controlling the passage of material from the bin to the hop er, and means for dischar 'ng material rom the hopper into the loalng device for the mixer. 2. A loader for a concrete mixer comprisin a frame, a bin carried thereby and provi ed with an adjustable partition to form a plurality of storage compartments,'a hopper provided with a partition to form a plurality of compartments to receive a batch of materials from said storage compartments, means for discharging the material from the storage compartments into the lbatch compartments, conveying devices for automatically picking up and transporting the materials from a place of depositl on the roadway to' said stora e compartments, and means for discharging material from said hopper compartments into the loading device for the mixer. u

3. A loader for a concrete mixer comprisstorage compartments carried thereby, means for transporting material from a place of deposit to each of said compartments including a bucket conveyer, and

a hopperlll a horizontally and vertically swinging boom carrying a movable pick up conveyer carried by the frame, a hopper provided with compartments for enough material to form a batch, means for discharging the material from the storage compartments into the hopper compartments, and means for discharging the material from the hopper compartments into the loading device for the mixer.

4. A loader for concrete mixers comprising a frame.,v a horizontally oand vertically movable boom mounted adjacent the rear of said frame, a shoveling conveyer carried by said boom, a receiving bin mounted on thecompartment, a hopper belovvr said storage compartment, means for discharging the material from the storage compartment into the hopper, and means for discharging the materlal from the hopperinto the loading de-l vice for the mixer. A t

In testimony whereof I affix my signature.

JOSEPH PHARES HUMPHRIES.

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