US113144A - Improvement in pumps - Google Patents

Description

alista Y hm NATHAN T. OOFFIN, 0F KNIGH'ISTOWN, INDIANA.

Letters Patent No. 113,144, dated March 28, 1871.

IMPRQVEMENT Inv PUMPS.

The Schedule referred to in these Letten Patent and making part of the same.

1, NATHAN T. COFFIN, of Knightstown, in the county of Henry and State of Indiana, have invented certain Improvements in PnmpStocks, Pnmp.

Handles, and Handle-Brackets, of which the following is a specification.

Nature and Objects of the '.Ifrwenton.

It consists in casing the stock'in -such a manner as to admit a circulation of thc Warm air rising vfrom the well between the stock and casing, and

vforming a waste-valve in the stock some distance 'below the spout, and opening into the ysurrounding cases; the object of which devices is to prevent the water in the stock, above the ground or plattform, from being frozen, and also so as to admit of a longer stroke of the piston, by which a greater quantity of water can be raised by a given movement 0i' the handle.

The second part of my invention relates to the handle or lever, and the bracket in which it ishung as a fulcrum to the pump-stock; and

It consists in constructing the'handle of iron in a manner to make it light, durable, and, comparatively inexpensive, and to pivoting it in a bracket constructed in such a manner that the pin constituting the fulcrnm will be securely held in place,

and which, at the same time, may be readily and conveniently removed for such purpose as may be desired.

Description of Accompanying Drawing.

General Description.

The pump-stock A is surrounded with casingB, as shown in tigs'l and 4, the stock extending -but few inches above the spout C, thereby kallowing the warm air that'l'ises from the well to-circulate as closely over the surface of the water as practicable, and, at the same time, forming an enlargement of the stock in the upper part, affording room for the play of tiehandle D .and piston-rod' E, by whichI am enabled to secure a longer strokeY of the piston than is attainable with wooden pumpstocks constructed inthe ordinary manner.

The manner of attaching the casing will be readily understood from an inspection of iig. 4, the casy ing B on three sides being nailed to vertical strips e, so as to ,form the space G, while the casing'B on that side to which the handle is hung is solid and equal in'thickness to the casing and space on the other three sides, as shown; the corners being filled with quarter-round strips a, giving a good external appearance, besides being such a construction as is not liable to warp off and open unsightly cracks.

The casing extends below the platform F, covering the well, so that the warm air rising therefrom may passupthe spaces G into the chamber above the stock.

To prevent the cold air that may circulate through the spout O from impnging directly upon the surface of the water, I pierce the stock with a hole at g just below the spout, which allows the Water'to run ci' at that point, this distance being so slight that a single stroke ofthe handle is sucient to raise the water to the spout. i

The lower part of' the handle is made of half-oval iron, H, bent into the form shown, and welded to the solid uppeifend I.

A stay, i, is put into the handle at about the middle of its length, to keepthe two bars from being pressed together.

Thematerial used, combined with the mode otconstruction, makes a handle of great strength and durabilit Y.

Tile bracket in which the handle is hung consists ofthe cast-iron plate J', furnished with the projecting jaws O and the stop S.

The plate J has a lug, r, projecting from the inside,

at the bottom, to rest in the bottom oi' the handleslot, and which, in connection with the smaller lugs, c, at thetop, serves to hold the bracket firmly in place.

ceive the end of the pin which forms the fnlcrum ofthe handle, the end of the pin being bent at a right angle, so that, when it is inserted .through the jaws and handle, the bent end may be turned back into the stop, and there held by the button y.

When it becomes desirable to remove the pin for any purpose, the button y may be turned,- as indicated by the dotted lines in tig. 2, and the bent end ot' the. pin turnedout of the stop, Whenthe pin may be readily withdrawn.

This arrangement prevents the pin from being worked out of place.

This arrangement for hanging the handle,lin con- 'lhe stop S is formed in such a manner as to reneetion with the enlargement of the stock heretofore mentioned, enables me to change the leverage,- so as to get a long or short4 stroke of the piston, as may be desired.

I make no claim, broadly, to iueasing pump-stocks so as to form annular airspaces around the valve or Water-chamber, as this has been done before.

Cla/ima.

I claim as my invention- 1. The pumpfstoek A, open at its upper end, in

combination with the waste-valve g and surrounding easing B, the latter being arranged to forma ehamber above the stock, all substantially as and for the purpose set forth.`

2. The bracket J O S, and pin z, and button y, all constructed and arranged substantially as set;

forth.

NATHAN T. COFFIN.

Witnesses: i

O. F. MAYHEW, JOHN POLLETT.

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