US334605A - Isaac w - Google Patents

Description

(No Model.)

I. W. NUMAN.

l PUMP. No. 334,605. 'Patented Jan. 19, 1886.

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UNITED STATES isAAo W. NUMAN,

' PATENT OFFICE.

OF CANTON, OHIO.

PUMP.

SPBCIFGATION forming part of Letters Patent No. 334,605, dated January 19, 1886.

Application filed April 6, 1885.

To all whom it may concern:

Be it known that I, IsAAc W. NUMAN, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had therein to the accompanying drawings.

Figure l is a side elevation of a pump containing my improvements. Fig. 2 is a vertical longitudinal section. Fig. 3 is a side view of a pump provided with a support of a some what different form from that shown in Fig. l. Fig. 4 is a detail view enlarged.

My invention relates to certain improvements upon that class of cheap portable pumps which are usually made from tin or other sheet metal, whereby they may be more cheaply constructed and made to operate more satisfactorily.

In the drawings, A represents the workingbarrel, which is surrounded or partially surrounded by the air-chamber B, there being a 'passage-way.; a, between the two, covered by the outwardly-working valve b. This valve is formed of a small cone or funnel shaped valve-seat, b', attached to the working-barrel, so that it surrounds the aperture a, in which seat lies the ball-valve b2. The larger end of the seat is outward, thus allowing the water to pass from the tube A. into the chamber B as the piston descends, but prevents its being forced back as the motion of the piston is reversed.

R is a plug or stopper screwed into an opening in the outer wall of the chamber B, opposite the valve b. By removing the plug R the valve between the pump and air-chamber is exposed, and may be cleansed from dirt or obstructions-.an operation which has been impossible in pumps as heretofore constructed.

It will be understood that a removable plug. R, may be used in combination with valves of other constructions than that shown, permitting ready access to such valves for the purpose of repairing or cleaning; but the valve shown possesses advantages, in that it may be employed for pumping hot liquids, which would be injurious to valves of leather or gum. The plug may be depended upon to retain the ball b2 within its seat, or the seat may be provided with a confining-cage, if desired.

Serial No. 161,313. (No model.)

C is a valve situated in the lower end of the working-barrel and adapted to allow the passage of water into the cylinder A, and to close as the piston descends, causing the water to pass out into the airchamber' through opening a.

`D is the piston, and Ethe piston-rod, which latter gradually tapers upwardly, for a purpose to be described, and is provided at its upper end with a` handle, F, by which it is worked. 'y

The upper end of the working-barrel is screw-threaded at g. and isclosed by a cap, G, engaging with the screw-threaded portion of the working-barrel. The opening in cap O, through which the piston-rod passes, is of tapering form, it being of greater diameter at the lower end than it is at the top. The relative sizes of the tapering aperture in cap G and the tapering piston-rod are such that when the piston-rod and piston are raised to about the highest point the piston -rod completely fills the aperture in the cap and prevents any waste water which may have passed above the piston from splashing or being forced out of the top of the pump, there. being a passage, I-I, through which such wast-e water is conveyed back into the vessel in which the pump is placed.

By constructing the piston-rod and cap Grl in the manner described I am enabled to dispense with any packing around the piston-rod where it passes through the cap, and yet prevent the water above the piston from being forced out of the top of the pump, thus making a pump which operates satisfactorily at a very small cost.

I is a valve situated in thelower part of the air-chamber B. It operates, when the pump is in operation, simply to close the opening J in the bottom of the air-chamber; but it may be lift-ed after the pump has ceased operation, to allow all water to drain out from the airchamber of the pumpan operation which has been attended with considerable difficulty in pumps of this character as heretofore constructed.

In order to better permit the valve I to be raised, I ordinarily provide it with a stein, i, projecting below the bottom of the air-chamber, and provided at its lower end with a head or enlargement to retain it in place.

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7s is a tube, preferably of metal, extending from near the bottom of the air-chamber through the top thereof, and adapted to have the hose L attached to its upper end.

Pumps of the above-described character are usually inserted into small vessels such as tubs, pails, &c.-containing water, and are frequently provided with supports upon which the foot is placed in order to hold the pump steady while the piston is being worked up and down; but it is often found, when such support is rigidly and permanently connected with the pump-barrel, that when the pump rests upon the bottom ofthe watcrvessel the foot-support does not reach the ground ,and is therefore not at all times operative. I have shown an adjustable support which effeetually overcomes this difiiculty.

M is a rod or bar, carrying the foot-piece N at its lower end. It is adjustably connected to the pump ny means of a holder comprising two arms. O' O', permanently iastened to the pump at different points vertically, considerably distant from each other, and carrying a tubular receiver or receivers,P,in which rests the rod. In the form shown in Figs. l and 2 the tubularreceivers are connected with the said parts O O by means of a vertical bar or plate, O, which, however, may be dispensed with, as will be hereinafter described. I also combine with the said parts O O and the tubular receivers a clamp having as one of its parts a screw or bolt, said clamp engaging directly with the rod M. Still referring` to Figs. l and 2, the clamp there shown consists of a screw, Q, passing directly through the rod M, and having a nut, (j, on one side and an enlarged head, q, on the other, bearing against the aforesaid bar or plate O, this latter being slotted,as at 0, to permit the passage ofthe screw and its necessary movement as the rod M is vertically adjusted.

In Fig. 3. wherein a construction is shown dispensing` with the vertical bar or plate O, the clamp, consist-ing of a similar headed screw and nut, is arranged to compress or draw together the walls of the tubular part through which the rod passes. The horizontal parts O of the holder may be perforated, as at o', to receive and support the nozzle R of the hose, as shown in Fig. 2, the construction shown in this figure being provided with a bracing strip or piece, O, which may also be perforated to receive the nozzle.

I am aware that a support by which the pump is steadied by the foot of the operator, and made vertically adjustable relative to the pump, broadly considered, is old, and hence I do not claim any and all forms of verticallyadjustable footsupports for pumps as my invention; but I believe myself to be the iirst to have adjustably connected a rod and foot-piece with a pump by means of a holder rigidly fastened to the pump at two or more vertical points considerably distant apart, and carrying tubular receivers in which the rod is mounted, and a clamp, one part ofwhich is a screw or bolt, which securely'unites the rod with the holder after the rod has been adjusted.

I am also aware that it is old to combine with a lift-pump an air and water chamber having a perforated bottom, the opening in the bottom being covered by a valve which is lifted,when it is desired to draw off the water from said chamber, by means of a pin or projection carried by a lever worked from the top of the well, and hence I do not claim such an arrangementof parts; but my device-that is, a valve covering the opening in the airchamber, provided with a stem which projects through said opening and has formed at its lower end an enlargement serving both as a stop to prevent displacement of the valve and as a convenient projection which can easily be reached by the hand when it is desired to lift the valve and uncover the opening-possesses advantages which I believe I am the first to attain.

XVhat I claim isl. In a pump, the combination of a working-barrel, the piston, a tapering piston-rod, and a cap closing the top of the working-barrel and provided with a tapering opening, through which the piston-rod passes, substantially as set forth.

2. The combination, with a pump and t-hc rod M, carrying a foot-piece, of a holder for said rod, comprising the parts O' O', permanently fastened to the pump at two points vertically, considerably distant apart, and carrying tubular receivers in which the rod M is mounted, and a clamp which securely unites the rod and holder after the rod has been adjusted, substantially as set forth.

3. 'Ihe combination of a pump, the bracket or support O O/ O, carried by the pump, the vertical part O beingr slotted, the rod M, the tubular receivers in which the rod is supported. and the clamping-bolt Q, passing through the slot in part O and the rod, and adapted to securely unite the rod and snpport in various vertical positions, substantially as set forth. l

4. The combination ofa pump, achamber, B, surrounding the pump, a passage-way between the pump and chamber, a funnel-shaped valve-seat, b, surrounding said passage. a ball, b2, within said seat, and a removable plug, R, seated in the wall of the chamber opposite the valve-seat, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ISAAC XV. NUMAN.

Vitnesses:

L. M. JoNns, W'. VYNN.

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