US978136A - Loader for cement-mixers. - Google Patents

Description

W. A. COOK.

LOADBR FOR CEMENT MIXERS.

APPLICATION FILED SEPT.7,1909.

978.1 36. Patented Dec. 13,1910.

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useful improvements in loaders for cement i'nixers and the like, it'has for its objects among others to provide an improved and simplified construction for this purpose whereby the lifting of the load is" made easier. I also fulcrum the bucket so that it will have a rocking motion'causing it tobe projected with its spout, into the openend ofthe mixer when discharging the material, and to withdraw out of the way when-the bucket is returned empty to placel'to receive anew load,

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be specifically defined by the' appended claims.

The invention, in its preferred form, is clearly. illustrated in. the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which Figure 1 is a side elevation showing the application ofthe invention. Fig. 2 is a view at right angles to Fig. 1, looking in the direction of the arrow in Fig. 1.

Like numerals of reference indicate like' parts in thedifi'erent views.

Referring to the drawings 1 designates the platform of the cement mixer which per se may be of any of the well known forms of construction of which 2 is the revoluble receptacle of the mixer, 3 .its journals mounted in suitable standards 4 rising from. the platform, while from the said platform rise the standards 5 connected at their upper ends by j a cross piece 6..

'2? are pulleys suitably suspended from the cross piece 6 as seen best in Fig. 2 and over which pass the lifting ropes or the like 8 which latter are designed to be connected with some suitable source of power, such for instance as the winding drum of a hoisting engine, not shown. Theother ends of the said ropes are secured in any suitable man- 8 with the bucket being near the center 'of ner to the sides of the bucket 9 as seen at 10, the points of connection of the ropes of the bucket at appoint in' front ofith'o points'lO are the ends of -the-bars1-l1which:

ends by the cross bar .12.... lihe..lifting*ropes 8 pass loosely over this cross bar. z

nattheii upper gravity'of the load. Attached to .the sid es 13 are bars securedto'the spout l5 or bucket as at 14, one end beingipivotallycon nectedwith the standardsh as :at516 and 2-" their other ends connected with 'the crossbar 12. The front ends of thebarsz13ypiojecta short distance'below the botto'mwof the spout as seen :best'in Fig. 1, inordemtd allow-0f the requisite movementof the spout, asr willsoon be explaineda The operation'will be apparent foregoing description", especially when taken in connection with the" annexedtdrawin s;

briefly stated, it is as follows :edksishown y full lines in Fig. Lthe bucket. is in itslower most position ready to be filled; whenfilled the engine is started and the lifting ro'pes bein attached to the bucket as described, the ucket is raised; as the bucket rises turning upon the points 16 the pull on the ropes will elevate the bucket untll'the cross bar 12 is carried away from or out 'of contact with the ropes which' will complete the discharge by pullin directly on the bucket. At the start the effect of this disposition of the parts will'be to increase the effectiveness of the pull of the ropes and thus lift the load easier. The cross bar 12 simply changes the direction of the pull of the ropes at the start. As the lifting progresses the bucket is rocked upon -its'ful'-' crum at 16 giving a rocking motion to the spout, causing it to project.into the open end of the mixer 2 when discharging material thereinto, and to withdraw out of the way when the bucket is returned emptyto its normal position on the ground ready vention or sacrificing any ofits advantages. 1

What is claimed asn'ew is 1. A loader for cement mixers comprising a framework, a bucket provided with 4 a spout, bars rigidly secured to said spout and pivotally'mounted in said framework, connections between the. body of said bucket' and said bars, and means for lifting said bucket.

2. A loader for cement mixers comprising a framework, a .:.bucket provided with a spout, bars rigidly secured to said spout and pivotally mounted in said framework, brace bars rigidly secured to the body of said bucket and having connection with said .pivot bars, and means for lifting said bucket.

3.111 a device'of the character stated, a

vertical framework, a bucket provided with Laspo'ut, means for pivotally mounting the spout on a horizontal axis on said framework, bars rising from the bucket to the rear of its pivot, a cross bar connecting the upper ends of said .bars, a pulley on the frame above the pivot of the spout and a lifting rope passed over said pulley and attached to the bucket and having abearing' on said cross bar during a portiononly of the lifting movement.

4. In a device of the character stated, a vertical framework, a pivotally mounted ibucket having a spout pivoted on a horizontal axis of said framework, bars r1s1ng f from the bucket to the rear of its pivot, a cross'j'bar connecting tlie said bars, a lifting rope attached to the bucket to the rear of the attachment of said bars, and a pul- :.ley=mounted on the framework above. the

- ing pivot of the spout and over which said rope passes, the construction being such that the rope contacts with said cross bar during a portion only of the lifting operation.

5. A loader for cement mixers comprising a framework,. a bucket. provided with a spout, barsrigidly secured to said spout and pivotally mounted in said framework, connections between the body of the bucket and said bars, and a lifting rope connected In testimony whereof I afiix my signature 1 in presence of two witnesses.

WILLIAM A. COOK.

Witnesses:

JOHN J. SQHINDLER, A. J. SCHINDLER.

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