US187969A - Improvement in hay-elevating devices - Google Patents

Description

Patented March 6, 1877.

NJETERS, PHOTO-UTHOGRAPNER. WASHINGTON. D c

PATENT OFFICEC GEORGE A. Dickson, or sEoE'rsvILLE,

.NEW YORK.

IMPRovEM-NTN HAv-ELEvA-rme DEvlcEs.

Specification forming partof Letters Patent No. 187,969, dated March 6, 1877; application iiled November 29, 1876.

j companying drawing, and to the letters of reference marked thereon, which form a part of this specification.

rlhis invention relates to certain improvements .in devices for binding` the load and elevating the same coincidently, and which consists in the arrangement of the binding rope or chain with the hoisting apparatus in such a manner that the load, when elevated to its proper height, is transported to the desired locality and there discharged, all of which will be hereinafter more fully described and set forth in the claims.

Figure 1 is an elevation of the device in position for hoisting a load. Fig. 2 is a sectional enlarged view of the 'pulley and hook block. Fig. 3 is a cross-section of the same.

In the drawing, Fig. l, A represents the binding rope or chain, which is passed around the hay or other materialto be elevated. One end of this rope is provided with a ring, a, which passes within the arms of a double catch, H, with suitable notches, and the other end is connected to the draft-rope I. The double catch H consists of the pivoted pieces or prongs b b, provided-with projections b', for engaging with the hooked levers of the pulley-block. The pulley-block C has in its upper end a pulley, c, under which the hoisting or elevating rope passes, and is divided by a partition from the lower end. In the lower part are arranged two levers, D D', provided at their lower ends with hooks d d', while their upper projecting ends, which are thinner than the lower ends, are connected to toggle-arms G G. The central or joint pin g o these arms projects to the sides of the pulley-block and slides in slots k. To one of the pins c', connecting the lever D to the togglearm Gr', is attached a horizontally-pivoted lever, E, which bears on the central joint-pin g, and projects toward the side of the pulleyblock, and has the disengaging-rope F attached to its outer end. A suitable aperture, t', is made in the side of the pulley-block for the disengaging rope to pass through. A double catch, H, consisting ot' two pivoted levers, b, provided with projections b', to engage with the hooks cl d of the levers D D', is connected, at its lower end, with the rope or binding-chain A. This catch is inserted into the lower end ot' the pulley-block C and holds theload. A ring, a, is attached to one end of the slingrope, passed between the prongs of the catch, and clamped between them in notches in the lower part of the prongs, while the other end of the sling or binding-rope is connected to the draft-rope, as shown in Fig. 1 at 'L'.

As a modification the sling-rope, with the ring a at one end, may be held or clamped between the prongs of the double catch, and the other end of the sling-rope attached to the lower part of one ot' the levers b, as shown at m, Fig. 2.

The different parts of the pulley-block may be made of any suitable material, and of different sizes, to suit the various kinds of work for which it is required.

lhe operation is as follows: The bindingrope, with the ring and double catch, is passed around the hay or other material to be elevated, and the ends of the catch inserted by hand into the lower end of the pulley-block, and the other end of the binding-rope is attached to the hoisting-rope, as shown at z', Fig. l, that passes over a pulley, L, which is attached to a swinging derrick, joist, or other suitable place. The double catch, striking against the toggle-arms, elevates them, and forces them into a straight line, and thus forces the upper ends of the levers outward, while the lower ends are drawn together and grasp the catch with their hooked ends d', and securely hold the load of hay. j When the load or bundle to be elevated is smaller than the binding-rope or sling, said sling forms part of the draft or hoisting-rope, and if the load is greater than the binding-rope, then the draft or hoisting-rope becomes a part of the sling or binding apparatus. When the load is placed in the position desired for deposit the disengagingfrope is drawn upon, which, actuating the lever bearing on the central projecting pin of the toggle arms, draws them down, bringing the upper ends ot' the hooked levers together and extending the lower ends, and thereby releasing the double catch with its load, which is deposited in the mow or other suitable place of deposit.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A pulleyblock, provided with pivoted hooked levers connected at their upper ends to toggle-arms, having a projecting central pin, constructed substantially as specified.

2. The pulley-block herein described, provided with the pulley c, hooked levers D D', toggle-arms G G', and pivoted lever E, bearing upon the pin g, arranged substantially as shown, and for the purpose speced.

and dsengaging-rope 3. The double catch ,11, ,havingthahooked ends b b', in combination .with thepulleybl'ock GEOEGE A Wesson Witnesses:

A. A. WILsoN, H. C. BARGLAY.

Images