US71292A - plemmifg - Google Patents

Description

@einen taire getraut i'frrb J. H. F-LEMMING, 0F enero N TOWNSHIP, i OHIO.

Letters Patent No. 71,292, dated November 26, 1867. i

IMPROVEMENT III WINDLAss-GRANK POWER.

TO ALL WHOM IT MAY CONCERN Be it known that I, J, H. FLEMMING, of Groton township, in the county of Erie, and State of Ohio, have invented certain new and useful Improvements in Windlass-Crank Power ;and I do hereby declare thatl the following is a full and complete description of the same, reference being had to the accompanying drawings, making a part of this specification, in.which- Figure 1 is a side view of the crank.

Figure 2is an edge view Figure 8 is an inside view.

Like letters of reference refer to like parts in the views.

A, iig. l, is the handle, one end of which terminates in a ring, B, ig.,3, enclosed in a shell, C. This handle is pivoted to a lip, D, protruding freni the side of the shell, as shw in hg. E, iig. 3, isa ratchet-'wheel placed within the ring B, and whichis provided with deep, square notches F, instead of angular teeth, as in the ordinary ratchet. G is a lug fixed to the inside of the ring, and made to ilt into the notches, as shown in the,

drawing. This lug answers-as a p'awl, by which the ratchetwheel is turned, communicating thereby motion to the Windlass or roller, around which the rope is wound for drawing up the weight, as follows: The ratchetwheel is keyed to the shaft ofthe roller, and turns the same, as the handle is made to turn by the lug G engaging in the notches of the wheel, as shown in iig. 3, Thus the handle, wheel, and roller are moved around together, thereby winding up the rope to which the weight is attached. 'In order to lower the weight swiftly, or for a rapid unwinding of the rope, the lug is disengaged from the ratchet-wheel, by forcing the handle back in the direction indicated by the dotted lines I, iig. 3, thus throwingthe lug back, as indicated by the dotted lines J. The wheel being thus relieved, the roller will turn, and the rope unwind more or less rapidly, according to the weight attached te it. The descent of the weight can be controlled, so as to cause it to descend at any speed, or entirely arrested at any point by forcing upward the handle, and causing the ring B, surrounding the ratchet-wheel, to press strongly upon it, thereby arresting its descent by the induced friction; thus the crank becomes a brake for controlling the speed of the descending weight; hence it is at once a crank and brake com bined, operating as either with equal facility and convenience. The weight may be held suspended at any point in its descent or ascent, bymeans of the ratchet-wheel K, fixed to theside of the shell, and a pawl conveniently placed as to fall upon and into the teeth,`at the time that. the lug is engaged in the wheel E; thusthe weight is securely held by the two wheels and pawls.

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

The handle A, having a lodp or ring, B,'and lug G, and pivoted to the shell C, arranged in relation to thel ratchet E, operating with said loop or ring, and in combination with the pawl and ratchet, substantially as and for the purpose lset forth. v

J. H. liLEMMINGr.

Witnesses:

JAMES H. Livnneoon, GEO. V. H. PARKER.

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