US402198A - Horse-power - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.,

J. B. SHEAR.

HORSE POWER No.- 402,198." Patented Apr. 30. 1889.

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No Model.) 2 sheets-sheet 2..

" J. B. SHEAR.

- HORSE P WER, No. 402,198. Patented Apr. 30, 1889;.

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JOHN B. SHEA-R, or AUBURN, NEW YORK.

HORSE-POWER.

SPECIFICATION forming part of Letters Patent No. 402,198, dated April 30, 1889.

Application filed December 28, 1888. Serial No.2 94=,857. (No model.) I

T 0 aZZ whom it may concern:

Be it known that 1, JOHN B. SHEAR, a-citizen of the United States, residing at Auburn, in the countyofOayuga and State of New York, have invented new and useful Improvements in Horse-Powers for Operating Hay- Eorks, of which the followingis a specifica- My invention relates to improvements in horse-powers for operating hay-forks; and it consists in certain novel features hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of my improved horsepower, showing the hay-fork connected thereto in dotted lines. Fig. 2 is a side elevation of the improved horse-power. Fig. 3 is a central longitudinal vertical section of the same, and Fig. 4 is a plan view with a partbroken away.

Referring to the'drawings by letter, A designates abarn, B the hay-fork, of the usual or any preferred construction, and O designates the rope connecting the said hay-fork with my improved horsepower.

D designatesthe frame of my horse-power having the longitudinal bars E and the cross bars or beams F. Near one end of the frame I mount the vertical driving-shaft G, upon the upper end of which I secure the sweep or lever H, and near the lower end of said'shaft I secure a large gear-wheel, I,. as shown. This gearwheel I meshes with a pinion, J, on the inner end of a horizontal shaft, K, mounted in the frame and extended to the opposite end of the same, as shown. A drum or Windlass, L, is loosely mounted on this shaft K, and the rope C is secured to and winds on the said drum. The drum is provided at its inner end with a half-clutch, M, which is engaged by a second half-clutch, N, mounted on the shaft K and sliding longitudinally upon the same. The said half-clutch N is provided with a longitudinal slot, 0, whichis engaged byaradial pin, P, on the shaft, so that the said halfclutch will move with the shaft. The clutch is further provided at its inner end with an annular groove, Q, which is engaged by the lower forked end of a lever, B, fulcrumed near 'its upper end upon a lug, S, secured on the upper. edge of one of the cross-beams of the frame of thehorse-power. The upper end of this lever B projects inward and upward and plays in a recess in a cross-beam, T, of the frame, and is adapted to be pressed outward in the operation of the device to release the hay-fork. The lower end of this lever is pressed normally outward, so as to hold the two half-clutches in engagement by a spring, U, secured upon the cross-beam of the frame and bearing against the lever.

V designates a trip lever, which is fulcrumed upon the cross bar or beam T of the frame and has its inner end forked, as shown.

The lower arm, WV, of this inner forked end is provided with ahorizontal shoulder, X, which engages the inner upper end of the lever It, and is adapted to operate the same. The sa d trip-lever is held in its normal position in engagement with the lever B by a spring, Y, secured to the cross-bar T and acting on the outer end of the trip-lever. A cord, Z, 1s secured to the free endof the trip-lever and extends therefrom to a point within the barn within convenient reach of the operator. This cordis used when it is desired to lower the hay-fork by hand.

a indicates a 'small band-pulley secured on the vertical driving shaft, just below the sweep H, and geared to a larger pulley, b,b y means of a cross-belt, c. The said pulley b 1s mounted on a cross-bar of the frame adjacent to the cross-bar T, and is provided on its upper side with a vertical pin, d, which 1s adapted to contact with the upper arm of the fork of the trip-lever and thereby disengage the trip-lever from the lever B. On its under side the pulley b is provided with a cam, e, which 'is adapted to bear against the lnner upper end of the lever R and thereby operate the same.

In practice the horse-powerisset up at the proper place and connected with the hayfork, and the sweep then rotated in the direction indicated by the arrow. The gear-wheel I is thus caused to impart motion to the pinion J and through it to the shaft K, and the half-clutch N being carried around by the said shaft K will rotate the drum so as to wind the rope O thereon and thereby raise the hay-fork. The several parts are so arranged that just as the hay-fork has reached the desired height the pin cland camewill begin to act on the trip-lever and the lever B. The trip-lever will thus be disengaged from the lever B and the upper end of the said lever be pressed outward, thereby drawing the lower end of said lever inward and disengaging the clutches. The weight of the fork and the hay carried thereby will thus be thrown directly on the drum and the rope will be unwound therefrom and the fork lowered. As soon as the cam c has passed the upper end of the vibrating lever B, the spring, acting on the lower end of the same, will throw the said lower end outward and cause the clutches to again engage, so that the machine is in position to raise another load of hay.

It will thus be seen that I have provided a very simpleand efficient horse-power, by which the hay-fork will be raised and lowered without stopping the horse or requiring vigilant attention on the part of the operator.

\Vhen it is desired to operate the device by hand to lower the fork, the pulley b is dispensed with, and the cord connected to the trip-lever operated so that the said lever will bear against the upper end of the vibrating lever and force the same outward, thereby disengaging the clutches, as before stated. It will sometimes be found preferable to thus operate the trip-lever by hand, as in that case the operator can control the height to which the fork is to be raised; but when the fork will be raised to substantially the same height for a great number of times, the gearing described will be found more desirable.

I11 order to regulate the height to which the fork will be raised, I provide the pulley b with a number of openings, f, in its upper side, in any of which the pin (Z is engaged.

My device is composed of few parts, is very compactlyarranged, and is efficient and durable.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1S

1. The combination, with the frame, of the horizontal shaft therein, gearing to operate said shaft, the drum mounted loosely on the shaft and provided with a half-clutch at one end, the half-clutch on the shaft engaging the half-clutch on the drum, the vibrating lever mounted 011 the frame and engaging said clutch, and a trip-lever mounted above and engaging said vibrating lever, as set forth.

3. The combination of the frame, the horizontal shaft therein, gearing for operating said shaft, the drum mounted loosely on the shaft and provided with the half-clutch at one end, the half-clutch sliding on the shaft and engaging the half-clutch of the drum, the vibrating lever mounted on the frame and having its lower end engaging the clutch, the triplever mounted on the frame and engaging the upper end of the vibrating lever, and the pulley having the pin 011 the upper side engaging the trip-lever anda cam on its lower side engaging the vibrating lever, as specified.

I. In a horse-power, the shaft K, having the drum mounted loosely thereon, the clutch connecting the drum to the shaft, the drivingshaft having the usual sweep, H, the pulley a, secured to the driving-shaft below the sweep, a pulley, I), connected to pulley a by a belt, and tripping devices actuated by the pulley b to cause the engagement of the clutch on the drum-shaft, as set forth.

5. In a horse-power, the drum-shaft K, the d rum loosely mounted thereon, the clutch connecting the drum to the shaft, the drivingshaft having the sweep, and tripping devices actuated by the movement of the driving-shaft to cause the disengagement and engagement of the clutch on the drum-shaft, as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in. presence of two witnesses.

JOHN ll. SHEAR.

\Vitnesses:

OSCAR TRYoN, DIADEMIA BoDINE.

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