US89603A - Improvement in horse hay-forks - Google Patents

Description

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R. AfSMITH, OF WASHINGTON MILLS, NEW YORK.

Letters Patent No. -89,603, dated May 4, 18,69.

IMPROVEMENT IN HORSE -HA'Y-FORKS.'

The Schedule referred to these Letters Patent and making part of the lame.

To all whom fit may concern:

Be it known that I, R. A. SMITH, of Washington Mills, in the county of Oneida, and State of New York, have invented new and useful Improvements in Horse Hay-Forks; and I do hereby declare that the following is a full, clear, and exact description of my invenltion, reference being had to the accompanying drawings forming a part of this specification, and to the let.-4

ters of reference marked thereon, of which drawings- Figure l is an end elevation of my improved fork.

Figure 2 is a side elevation of the same.

`Figure 3 is a side elevation of the same, as it appears after dropping the load.

Figure 4 is a plan of the fork, when arranged as shown in fig. 2.

The nature of .my invention consists in the novel mode of constructing and' arranging the catch which holds the lifting-tines, while the load is being elevated, whereby the perfect working of said catch is insured, and the same is fullyprotected from any injury which might otherwise arise from the 'striking of the fork against any obstacle, either while being raised or when lying on the ground and not in use.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction' and operation.

The fork-stad' D RR O O is constructed of two pieces of flat-bar iron, which are welded together into a common head- D, provided with a hole, d, and arounded top, as shown.

-From the head, the parts R lt of the sta, branch out and run down 'parallel to each other to the plate L, which is welded or otherwise secured between them as shown, and serves to hold them in their proper relative positions, as well as to cover the lower end ofthe catch Spyand to prevent the lifting-tines from swinging back too far.

From the plate L, the parts O O of the staff, branch out in the form seen in fig. l, and between their lowerv ends is secured the liing-tine head, as will be presently shown. The retaining-tines Q Q, are of the general form shown, and are welded into a common head, (l, which 'is provided with a hole, c, and a rounded top, as shown. l These tines are pivoted in the fork-statt' by means of the pin or bolt a,which is inserted through the parts R R, and head O, as shown, said head C being arranged between the parts R R of the fork-stati, as seen'in gs. l and 4.

' A rope, B, has its ends looped through the holes v and d, in the heads O and D ofthe lifting-tines and fork-staff, and a ring, A,is arranged on this rope B, to which the lifting-power is attached, or if preferred, the

. lifting-rope may be looped around the rope B in an obvious manner.

f Between the parts R R of the fork-stad', and a little below the pin a, is pivoted the pulley-'wheel E, by

means of the pin or bolt d, as seen in fig. 2; the front .portion R O of the fork-staff being broken out in this figure to show the pulley-wheel, catch, and head of the lifting-tines.

The catch S is constructed with two slots, G and I, and notched lower `end K, as shown, and is arranged between the parts R R of the fork-staff, by'means of the pins or bolts c and f, which are secured in the parts il; R, and -pass through the slots G and I, as seen in A spiral spring, H, or if preferred, a block of rubber, is placed in the slot G, its lower end bearing on the bottom of said slot, and its upper end bearing on the pin e, thus serving to keep thecatch S pressed down.

A rope, F, is secured to the upper end of the catch S, and passes over the pulley-wheel E, and down to the operator, so that by drawing on said rope he can raise the catch S, as is readily seen. The lifting-tines N N N are made of platebar iron, the front parts being drawn out into the pointed form, shown in figs. 2 and 3, and the rear parts being bent up to an elbow, as shown, and also being bent up together and welded into a common head, M, as seen in g. l. l

Between the points of the elbows in these tines, are inserted the tubesl? l?, and a rod, g, is passed through holes in the ends of the parts O O of thev fork-stai?, and holes in the angles of said elbows, and also through thetubes P P, and is secured by nuts or riveting on the outside of the parts O O in said position, thus serving to bind the tines together, and also to pivot them between the lower branches O O of the fork-stad'.

The head M of the lifting-tines is provided with a notch, J, and is of such size as that when said head is drawn back against the plate L, the notch K of the slide S shall slide into the notch J of the head M, and thus hold it in the position shown in g. 2.

The front and top of the head M are bevelled oi, as are also'the rear and bottom of the catch S, so that as the head M is drawn back towards the plate L, the

catch S will be raisedup, so as to allow thev head M to pass under it, in a `manner readily seen.

The mode of operating my fork is readily seen after the foregoing description of its construction.

The retaining-tines Q Q G are turned up into the position shown by dotted lines Q' O' in fig. 2, and the lifting-tines N N N are forced under the haynor load to be lifted, the head M being held up in the fork-stall- D B R. O O, and against the plate L by the catch S, as before shown.

The lifting-power being then applied .to the ring A, the rope B is drawn up, and consequently the- .tines Q Q arevturned down into the position shown in drawings, where they serve to prevent the load from slipping off the lifting-tines N N N.

This downward turning of the tines is limited by the striking of the heads O and D, at such a point that said tnes Q Q sit a littleont beyond the end of the tines N NN, so that in the raising o'f thefork the tines Q Q prevent the ends of the tines N N N from catching under any obstacle.

The heads Ov and D, being of the rounded form shown, and there being no projection on the fork-staff D R R O O, and the lower branches O 0 of said forkstaif, covering the angles at the elbows of the tines N N N, it is readily seen that there is little chance of the fork catching against any obstacle while being elevated.

When the load has been cam'ied to the desired point, the operator pulls the rope F, which draws up the catch S, and allows the lifting-times to revolve into the position shown in g. 3, thus discharging the load from the fork.

- saws 2 Having thus fully described my improved fork,

What I claim as new, and desire-to secure by Letters Patent, is-

The sliding catch S, when constructed with the `slots Gand I, and notch K, andA used in combination with the pins e and f, spring H,- rope F, and lifting-tine headv

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