US49217A - Improvement in water-elevators - Google Patents

Description

UNITED STATES PATENT OFFICE.

JACOB H. BEST, OF SCHENEGTADY, NEW YORK.

IM PROVEM ENT IN WA'l'ER-.ELEVATORS Specification forming part of Letters Patent No. 49,217, dated August 8, 1865.

To all whom it may concern:

Be it known that I, JACOB H. BEST, of the city of Schenectady, State of New York, have invented a new and useful improvement in the construction of machinery for raising and lowering the bucket of a well, or for analogous purposes; and I declare the following specification, with the drawings thrilling part thereof, to be a full and complete description of my invention.

Figure l represents in perspective my apparatus Aattached to a well-frame; Fig. 2, man enlarged diagram of the apparatus as seen in reverse of its position as shown in Fig. l; Fig. 3, an end View of thc same.

Similar letters denote the saine parts of the apparatus.

A A is the frame-work of a well supporting the machinery; B, the barrel or cylinder around which the hoisting-chain is wound; C, the chain to which is attached the bucket D.

E is a ratchet-wheel fixed upon the shaft H of the barrel B, by which it operates the barrel.

W is a winch or handle, iitted to turn freely around the shalt H, which is projected outward for that purpose, as shown in Fig. 3.

P is a pawl pivoted to frame A, to hold wheel E by its teeth. Pivoted to winch W at a is another ratchet-pawl, R, by means of which the loose winch takes hold of and operates the wheel E when turned in the direction indicated by the arrows, butnot when moving in the reversepdireciion. The foot of this pawl is formed of a piece, f, projecting out sidewise, as shown in Fig. 3, rom its stein, which does not overhang the wheel E, but lies between it and the winch. This foot is made with its edge toward pawl P beveled, as shown in the drawings.

The pawl P has above its point a lip, e, projecting upward at a slight angle, sufficient to allow the beveled edge off to pass between it and the upper point of the ratchet-tooth in which it is engaged.

Within the inner face of the winch W, atb, Figs. l and 3, (whose position is shown by dotted lines in Fig. 2,) there is inserted a small dat meta-l bar, whose surface is fitted to rub against wheel E near its periphery, being intended to operate as a brake to its movements. The bar on its inner side next the winch is made convex, so as to adjust itself to any irregularities in the face of the wheel, or of its movements i i 3 The operation of the machine is `thuszfllhje bucket being at the bottom: of `thewell`,`the winch is turned in the directiohshowh byl the arrows, when the pawl It, holding against the teeth of wheel E, will turn `the l arrel B and wind up the chain with the bucket-lj* Whent is desired to loweritdown"tlieiwinchisbrought` j i i backward into the positionshowuby the dotted lines at K, Fig. 2. Then the bevel-edge f of pawl R, passing under lip e, will disengage pawl P from the wheel and permit the bucket 1 to descend. To prevent its descending too rapidly the winch, which has suicientlateral play upon. its axis for that purpose, is to be pressed sidewise, so as to bring the brake-piece b to act upon the surface of wheel E, by which well, or any weight, of a wheel, E, operating as a ratchet and friction orfbrake wheel, in p com bnatiou with the winch W, its brake-piece b, audits pawl R, also the pawl P, the whole arranged substantially as described, and for the purposes set forth in the within specication.

JACOB H. BEST.

Witnesses:

Rioni). VARIOK DE WITT, A. V. DE WITT.

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