US71850A - Ephraim h - Google Patents

Description

nith tute gatnt @Hita IMPROVEMENT IN IIAY-I'LIVATORS.

@the rlgehule referat tu in that Sit'ettrt atmt mit mating am rf the same.

TIO ALL lWI'IOM IT MAY CONCERN.:

Bc it known that LEPHRAIM H. CARrENTER, ot' Dexter, in the county of Washtcnaw, and State of Michigan,

have invented a new and useful Improvement in Hay-Elevators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, in which- Figure 1 is a side elevation,- and Figure 2 is a central vertical section. 4

The same letters are employed in both figures in the indication of identical parts.

My improvements consist in alterations made in. the mode of actuating the,dctaching-moclianism, as set forth inV my patent ofA February 20, 1866, the character `of which changes is plainly indicated by a comparison of that'pate'nt with the following description of my present` improved apparatus'. Y

I have called this machinery a hay-elevator; .but it is equally adaptable to all `kinds ofwork of a similar character, as, for instance, the loading of cargoes into vessels or warehouses, and my claims will extend to the mechanism irrespective of the particular use to whichit may be applied. The following description will enable any'person skilled in th'e art to construct and operate the same. v V

A is a cable, stretched tautly over the point where the load is to be`elevated,and extending over the point where it is to be deposited. One end of the cable is represented as made fast -to the block B, over `the sheave of which a. rope, C, is carried. One end, passing overthe slieave E, supports thewcight to he raised, D, whileethe other is carriedv over such snatch-blocks as may be necessary to give it the proper direction to receive most conveniently the draught by which it. is to be operated. The remainder of the hoisting-mechanism, including also the sheave E, already mentioned, is placed in a frame, F,'made of convenient form to receivethe diiierent parts. The frame is carried under the cable A, suspended from the journalsof the grooved wheels .G runningA upon the cable. The lower part of' the frame has, in the middle, a funnel-formed mouthopening and widening downwards, through which the rope C passes after leaving the sheave E. Immediately above the opening, at F', are two falling doors or valves H, turning upon pivots, and `shutting together around the rope C. These valves are actuated by the cogged cams I and lever I', by which they may be raised, closing by gravity. Immediately above the valves H is a vertical slotted catch, K, which is formed, in the case shown, as a rectangular frame, sliding in suitable grooves in the frame F up and down. The ropeC passes through a pipe in the lower side of the catch, into theopen part of the same, and thence over the pulley E.' The catch extends ovcr and it encloscs the cable A, upon which it rests, when not raised, `in the manner to be explained. A conical stop, I4, is placedV on the cable A, immediately over the placezwhence the load is toy be raised. The point of the stopis toward the place to which the load 'is to be conveyed, When receiving thc load, the catch rests against the base ot' the stop, and prevents the rope C from drawing the frame forward.

On the rope is placed a collar, M, which may be adjustable. This collar is small enough to pass through i' the opening F', and between the .valves II, which will rise as it is carried past them, immediately closing by gravity after the collar has passed, thus preventing the fall of theload until the valves are raised by the rope, it acting on the lever I' and cams I. 4 'When the collar has passed through the valves, it immediately strikes against the bottom of the catch K, throwing it up, and di'sengaging it from the stop L. The force of the draught has heretofore been expended in raising the load; but, the frame F being releasedwhen the catch K is raised Aabove the stop, the force of vtraction now will draw the'framc and'loadalong the cable A. When the load is over the place where it is to be deposited by raising the valves II, it may be lowered by releasing the rope C. Two ropes, N and N', may he used, or they may be so tiedthat they will answenboththe purpose of Voperating the valves II and drawing back the frame to take up another load.

What I claim as my invention, and desire to secure by Letters Patent, is

l. In combination with the cable A, frame F, wheels G, sheave E, and rope C, the disengaging device, consisting of a collar, M, stop, L, and vertical catch K, enclosing the cable A and rope C, and operated subi stantially as described. p

2. 'lho combination ci the frame F, rope C, collar M, stop L, catch K, and valves II, cams I, and lever I', said pgrts being constructed and the whole arranged substantially as set forth.

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

E. Il. CARPENTER.

Witnesses:

D. P. BoLLowAY, JOHN S. IIoLLINcsnEAD.

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