US177832A - John b - Google Patents

Description

I.-B.'HAWLEY.

- WINCHES.

No.17'7,183Z. Patented ma 23,1876.

Witnesses .Inven'tor supporting arm, G, works.

' wheel B is made in one solid piece, the sup- UNITED STATES JOHN B. HAWLEY, OF-HAMDEN, NEW YORK.

lM'PROVEMENT'IN WINCHES.

' Specification forming part of Letters Patent No. 177,832, dated May 23, 1876; application filed May 8, 1876.

To all whom it may concern Be it known that'I, J OHN B. HAWLEY, of the town of Hamdem-in the county 'of Delaware and State of New York,have invented certain new and useful Improvements in Winches, especially in that class of winches used. on wagons and other vehicles to raise and suspend stones and other heavy articles for transportation, which improvements are fully set forth in the following specification, reference bein g had to the accompanying drawing, in whichv Figure 1 is a perspectiveview of a winch embodying my invention, represented with a part of one of the side wheels broken away on purpose to show the locking-bolt and ratchet wheel. Fig. 2 is a plan or top.view of the same, represented with part of the shaft and sleeves broken away near the ends. Fig. 3 is a side profile of the same, showing the construction of the supporting arm, trippingpaw Like letters of reference indicate like parts.

The first part of my invention relates to the combination of side wheels with a winch in such a manner that by means thereof the chain used in raising and suspending the article to be transported can be properly adjusted and wound'up on the winch.

The second part of my invention relates to the combination ofa supporting-arm and tripping-pawl with a winch in such a manner that while the winch is thereby securely held and. prevented from unwinding it can yet be easily released and allowed to unwind when desired.

To accomplish these results, 1 secure to a shaft, A, a ratchet-wheel, B. This ratchetwheel is constructed with a groove in the cert-- ter of its periphery, the bottom of the groove being a little below the bottom or base of the teeth of the ratchet-wheel, in which groove a If the ratchetporting-arm G will require to be'made in two parts, hinged or bolted together, as shown at d, on purpose to admit of its bein g placed easily in the groove of the ratchet-wheel; but if the ratchet-wheel ismade in two parts, jointed at the groove, and the two sides bolted together, the supporting-arm may be made in one piece, as in that case it can be placed in the groove before the sides of the ratchet-wheel are bolted together.

The pawl 0 works on an arm, f, forming what is commonly called a knuckle joint or trip pingpawl, the point of which engages in the is tripped or disengaged from the ratchet- It also prevents the arm of the trip-- wheel. ping-pawl from dropping too far down when the pawl is disengaged from theratchetwheel. is a simple spiral or other shaped spring, placed either in front of or behind the brace g, which, by its operation, keeps the point of the tripping-pawl pressing toward the ratchet-wheel. J is a loose wheel, revolving freely on the shaft A, one of which is placed on each side of the ratchet-wheel B, as shown in Figs. 1 and 2. This wheel J is constructed, preferably, with open spaces 70 between the sides and radial arms, which extend from the periphery to the huh. I are slots formed in the sides of the loose wheel J, on purpose to receive a link of the chain used in raising. and suspending the article to be carried. m is a locking-bolt, which passes through the sides and one of the open spaces 70 in the loose wheel J, and engages in the holes at in the ratchet-wheel B. A spiral or 7 other simple spring, 0, keeps the'locking-bolt an engaged in the ratchet-wheel.

In the center of each of the arms 19 of the loose wheel J a hole, q, is provided on purpose to receive the end of a lever or crow-bar, by means of which to revolve the winch. The shaft A should be covered a part of its length on each side of the loose wheels wit-h a sleeve or pipe, 1', on purpose to prevent .the shaft froin'being abraded by the chain used in sleeves r are not used, slip-collars will be required to keep the loose wheels J in proper position on the shaft A.

tion, I will now proceed to explain the manner of operating my improved winch. The winch, being in proper position on .the vehicle, is brought over the article to be raised,

a link of one end of the chain used in suspending the article is placed in a slot, 1, of one of the loose wheels J, and a link of the other e'hd of the chain is placed in a slot, l, ofthe other loose wheel J. Both ends of the chain are then simultaneously wound up on the shaft of the winch by means of a lever or crow-bar, the end of which is inserted in the holes q in the arms of the loose wheels J. In case the ends of the chain or chains are not so perfectly adjusted as to suspend the article equally, the lockingbolt m is disengaged from the ratchet-wheel B, and the loose wheel J revolved until the article is properly suspended, when the lockingbolt is again allowed to engage in the ratchet-wheel, and the winch revolved until the article is raised high enough for transportation, the supporting-arm G meanwhile etfectually preventing the winch from unwinding. In lowering the article from .the, winch the end of a lever or crow-bar is inserted under the bow of the clevis h, and the clevis, being lifted up thereby, trips and disengages the tripping-pawl e f from the 'ratchetwheel B, and allows the winch to unwind.

1 claim as my invention 7 1. The combination, in a winch, substantially as described, of the adjusting side wheels J J with the ratchet-wheel B, for the purposes specified.

2. The combination, in a winch, substantially as described, of a supporting-arm, G, with the tripping-pawl e f and ratchet-whee B, for the purposes specified.

JNO. B. HAWLEY.. Witnesses JOHN T. SHAW CHAS. MGPHAIL.

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