US374949A - Pulley stripper-block for hay-carriers - Google Patents

Description

(No Model.)

T. B. ELLIOTT.

PULLEY STRIPPER BLOCK FOR HAYUARRIBRS. No. 374,949. A Patented Dec. 20, 1887.

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UNITE STATES PATENT OFFICE.

THOMAS B. ELLIOTT, OF MEDORA, ILLINOIS.

PULLEY STRIPPER-BLOCK FOR HAY-CARRIERS.

SPECIFICATION forming part of Letters Patent No. 374,949, dated December 20, 1887.

Application filed January 15, 1887. Serial No. 224.508. (N0 model.)

To all whom it may concern:

Be it known that 1, THOMAS B. ELLIOTT, of Medora, in the county of Macoupin and State of Illinois, have invented a new and Improved Pulley Stripper-Block for Hay-Oarriers; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in cable derricks for stacking hay, of that class having the cable upon which the carrier travels supported by two standards.

The object of my invention is to provide said derrick with a pulley stripperblock of such construction that the horse by which the load is lifted and moved along the cable shall lift the load as he travels from the derrick and draw it along the cable as he returns, so as to avoid the usual long outward course and utilize the return travel, thus economizing room and avoiding travel without work.

IVith this end in view my invention consists in certain details of construction and combinations of parts, fully explained in the following specification, and illustrated in the accompanying drawings, in which Figure 1 is an edge view of one of the standards in connection with a portion of the cable, hoisting-rope, carrier, and pulley stripper-block. Fig. 2 is an enlarged side View of the stripper'block. Fig. 3 is a plan view of the stripper-block, and Fig. 4 is a rear end view of the same.

In the drawings, A represents one of the cable-supporting standards, of which there are always two strictly similar.

It represents the rope by which the carrier or grab is actuated and moved along the supporting-cable J. Ata distance equal to about half the usual travel of the horse from the foot of the standard is secured to the ground, by stakes or otherwise, the stripper block F. (Shown in Fig. 1 and upon a larger scale in Figs. 2,3, and 4, in which 0 represents the base-block rounded off at its front end, as shown at Z.) On the top of the base-block is pivoted so as to revolve upon a pin, 0, pass ing through a brace, s, a sheave'block, p, provided with a sheave, g. In a cavity provided for its reception in the top of the baseblock G is a spring, Y, the inward and upward projecting end of which butts against the side of the block 1). This feature will be understood by reference to Fig. 4, where a part of the block is broken away to exhibit the side of the spring.

Secured in a narrow cavity, N, (see Fig. 2,) in the upper part of the block 0, is a spring, V, adapted to vibrate in a horizontal plane, the outer and upper edge of which projects some distance above the top of the block.

Eisa rope-guide, ofa curved form, as shown, secured to and projecting from the side of the base-block, the use of which will appear in the explanation of the operation of the device, which is as follows:

The stripper-block F is secured to the ground at a point about half the horses travel from the standard A, or farther, if so preferred. The horse is then hitched to the hoisting-rope, which must lie on the same side of the stripper-block as the guide E. Having reached a point a little beyond the stripper-block, the horse is turned around, so as to bring the rope h against the curved forward end of the baseblock p, which, as the horse turns still farther around into the return-track, conducts the rope into the groove in the sheave q. Oontinuing on his return course, the load of hay reaches the part of the cable where it requires to be dropped, which latter operation is cffected bya sharp pull on the line t, which draws the spring V in the directio'h indicated by the small arrow, Fig. 3, thus liberating the block 1), which, owing to the tension upon the rope in the direction in which the draft is applied, as indicated by the arrow 3, causes the block 1) to instantly fly around, as indicated by arrow 2. It will be observed that as the block rotates upon its axis and the sheave leaves the rope the latter is underrun on the opposite side by the curved end, 00, (see Fig. 2,) and lifted onto the top, over which it instantly flies and drops the load. Matters being thus, the horse does not, as by the old method, have to retrace his steps unloaded, but is ready to commence another lift.

It will be observed in regard to the springs Vand Y that the latter is pressed into the cavity, in which it is secured by the block p as it swings around, but springs up as soon as theend of thelatterhas passed over it, and that provided with a trip-line, t, all constructed, while the spring V, when there is no tension combined, and adapted to operate substanon the cord It, prevents the blocklswinging tially as and for the purpose set forth. around too far, the spring Ypreventsitswing- In testimony that I claim the foregoing I 1 5 ing backward. have hereunto set my hand this 18th day of What I claim as myinvention, and desire to November, 1886. secure by Letters Patent, is-

A pulley stripper -block for hay carriers, consisting of a base block, 0, a revolving Witnesses: IO sheave-block, 10, provided with a sheave, q, a A. W.-NEWTON, rope -guide, E, and springs Yand V, thelatter R. NEWTON.

THOMAS B. ELLIOTT.

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