US280834A - Li ft-pump - Google Patents

Description

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

I-I. C. LANG-REER.

. LIFT PUMP.

No. 280,834. Patented July 10, 1883.

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HENRY C. LANGREHR, CF SAN FRANCISCO, CALIFORNIA.

SPECIFICATION forming part of Letters Application filed September 2, 188:2.

To all whom it may concern: Y

Beit known that I, HENRY 0. LANGREHR, a citizen of the United States, and residing at San Francisco, inthe county of San Francisco and State of California, have invented a certain new and Improved Lift-Pump, of which the following is a specification.

My invention relates to certain new and useful improvements in lift-pumps, and the ob ject of my invention is to provide an improved lifting-pump which shall be extremely simple in its construction, easy in its mode of operation, of great power, and one which may be produced at a very low cost of manufacture. rIhis object I accomplish by means of the mech anism, form of construction, and arrangement of parts composing the .pump illustrated in the accompanying drawings, in which- Figure 1 is a sectional side elevation of the complete pump. Fig. 2 is a top view. Fig. 3 is a side view of the hooked connecting-link, and Fig. 4 is a front view of the same. Fig. 5 is a vertical sectional view of the reciprocating cylinder or lift-valve seat, and Fig. 6 is a plan view of the same. Fig. v7 is a top view of a valve, and Fig. 8 is a cross-section of thel same. Fig. 9 is a detail view, showing the pump-case, packing-ring, and reciprocatingcylinder.

Similar letters of reference are used to desi gnate like parts throughout the several views.

The pump-case A is cast in one solid piece 'of metal in the form shown in section in Fig. l. The outer portion of the base Al is made haring or bell-shaped, as shown, and is tobe provided with the usual lugs for the reception of the bolts or screws which fasten the pump in place. rlhe central portion, A2, of the base is cast sufficiently thick to.4 receive' the upper end of the suction pipe B, and sufficiently wide to form a seat for the suction-valve C. At a point about midway of the height of the pump, but belowthe discharge line of the spout, I contract the casting, so as to form a guide-bearing, D, within which plays the cylinder which carries the lift-valve C. Upon the inner face of thebearing D, I cut av circular groove or channel, D', which receives the packing-ring E, and which is securely held to place therein. Upon one side of the upper part of the shell or casing I form the spout or Patent No. 280,834, dated July 1o, 1883.

(Nomodel.)

discharge-opening F. The upper rim or edge of the pump-case is bifurcated, or provided with a groove or channel, G, which is somewhat more than the half of a circle in crosssection, as is clearly shown in Fig. l. As this channel approaches the spout it spreads and dies away, its lines being merged into the adjacent parts, so that a free and unobstructed passage may be had for the entrance of the downwardly-projecting lug H, which forms the pivotal point or fulcrum of the lever I. The lug H should be made of a diameter somewhat less than the diameter of the channel within which it rests, and yet be sufliciently large to prevent its being withdrawn verti-- cally from said channel, the upper converging edges of which prevent such retraction. The web I, which connects' the lug with the lever proper, is just narrow enough to permit of the requisite amount of oscillation being given to the lever without impinging upon the top edges of the channel G.

The lever I is provided with a downwardlyprojecting web, J, upon its short arm, which strikes against the pump-casing A and prevents the long arm of the lever from being raised above the proper point. The upper surface of the lever is provided with inwardlytapering sockets K K K, which radiate from the pivotal point or fulcrum, as shown by dotted lines in Fig. l, and are adapted to receive the handle or handspike L, by which the pump is operated'. The long arm ofthe lever extends inwardly and is provided with an upwardlycurved hook, M, which enters a slot, M', formed in the connecting-link N. The lower portion of this linkis forked, or provided with two downwardly-projecting hooked arms, N N', Figs. 3 and A, which hook under the lugs O O, cast upon the inner surface of the cylinder I), and which project horizontally therefrom above the seat 'P of the lift-valve C. Upwardly projecting pins Q Q are placed Vin pairs at stated intervals around the seats of IOO ' y esaszh tion, as will be readily seen upon reference to Figs. 7 and S. They are Aformed et' a disk of metal having prongs R, above stated. Upon the under side ofthe disk is placed a disk, S, of rubber or leather', ol' a like diameter, and which is held in place b v a metallic washer, T, and bolt U.

The cylinder P may be made any desired length, so as to con lorin to thc capacity of the pump, and the seat l'or the li l`t-valve may be placed at any desired elevation within such cylinder.

A lug, V, is formed on the under side of the connecting-link N, which prevents the liftvalve from rising out ot' or above its guidepins; or a wire or rod maybe extended dialnetrieally across and above the valves from one pin to an opposite one for the purpose of accomplishing the same object. A wire or rod may also be stretched across and above the lower valve to hold it in place or prevent it from jumping from within the guide-pins.

\Vhen there are .i'our sets of guide-pins, the

wire may be extended diametrically across from pin to pin by having a small hole bored in the' top o1' each pin and inserting one end ot' the wire in the hole and securing it. \Vhen there are three sets of pins, the wire can be stretched from pin to pin to i'orm a triangle. I'n practice, however, the lower valve is in. no danger ot' leaving the guide-pins, as before it could clear them the lower compartment is full et' water, the upper cylinder has commenced to descend, and the lower valve has fallen back to its seat.

The annular trough or recess V, formed by the upper part of the eylinder-bearing and the discharge-line o1' the spout F, serves to retain 'atei-,and thus lorm a perfectly air-tight packing for the cylinder l as it is reciprocated up and down by the lcver`l and connectinghook N.

It will be seen from the above that the cylinder l? may be freely revolved within its bearing or casing, and that the lever may be shifted so as to be operated by a person standing at the rear or upon either the right or left hand side of the pump, or nearly in front; and, also, that as the cylinder ascends the lift-valve is closed and the suction-valve is opened and admits a supply of water to the well or chamber Z, and that as the cylinder I descends the suction-valve will close and the lift-valve will rise and admit `water to the upper part oft-he eylinder, from which it is forced outward by a new supply entering through the valveway upon the next downstroke ofthe cylinder.

Having thus described my invention,what l claim, and desire to secure by Letters Patent, 1s-

1. In a lift-pump, the casing A, cast in one piece, and provided with an internal. cylinderbearing, l), and upper channeled rim, G,which ibrms a continuons bearing for the operatinglever I, and provided at its base with a suction-valve, C, substantially as and for the purpose set forth.

2. ln a lift-pump, the combination of the easing A, suction-valve C, reciprocating cylinder il?, having lugs O, lift-valve (1', connecting-link N, and lever l, all when constructed,

arranged, and operating substantially in the' manner and Vl'or the purpose herein shown and set forth.

In testimony that l claim the foregoing ll have hereunto set my hand this 24th day of Au gust, 1882.

HENRY (si. LA'NGHEUH.

TWitnesses:

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