US186594A

US186594A - Improvement in force-pumps

Info

Publication number: US186594A
Authority: US
Publication date: 1877-01-23
Anticipated expiration: 1894-01-23

Description

UNITED 4STATES PATENT CFFICE OHARLESE. MCKEEHAN, 0E TEXARKANA, ARKANSAS, AsSiGNoE To HIM- SELE AND vlEeIL TAcITUs HANNON, on SAME PLAGE.

IMPROVEMENT IN FORGE-PUMPS.

Specification forming part of Letters Patent No. 186,594, dated January 23, 1877; application filed4 November 28, 1876. i

v Zo all 'whom it may concern Be it known that I, CHARLES H. MoKEE- HAN, of Texarkana, in the county of Miller 4and State of Arkansas, have invented a new and useful `Improvement in Force-Pumps; and

I do hereby declare that the following is a full, clear, and exactdescription of the same.

AThe object of my invention is to provide a y cheap yet durable and efficient double-acting reciprocating force-pump, applicable chey in situations where a submerged pump vis required.

Ihe iniprovementrelates to the construction and arrangement of' parts, as hereinafter i described.

In the Vaccompanying drawing, forming part ot'vthis specitication, Figure 1 is a partlysectional elevation of my improved pump. Fig. 2 is an end elevation of thehpump, with part ot' the frame-work broken away. Figs.

passages a, which open at the bottom of the pump, and are provided with a centrally-pivoted fourarmed valve, E', having an arm, c, by which it may be operated to open or close the passages a, and thus ,regulate the supply or shut it oit altogether. The receiving-chamber A is very shallow, and fo med by recessing the upper side ot' the bloc F. The more capacious exhaust-chamber B is formed in the middle of the block G, which isfplaced upon block A, and secured thereto by means of screws or bolts. The communication between the chambers A B is by means of the vertical passages c c, which are provided with valves d, for preventing the return ot' water. The four pistons or plungersD work vertically through the block F, each directly over a flap-` valve, e, which y alternately opens and closes an induction-passage, a. `The pistons are reciprocated in pairs alternately, those diagonally opposite being operated together. The

mechanism I employ for operating them consists of a rotary drum or shaft, H, and levers lthat as the slotted end of one lever is raised the corresponding end of the other is depressed, so that the levers vibrate, as it were, revers'ely. Il

.Rotary motion may be imparted to the drum by a belt-connection from any suitable Y motor.;

Supposing the pump to be submerged, and the valve E open, the rotation of the drum or shaft H will cause the levers I to vibrate re versely, and the plungers to .reciprocate in pairs. The'valves E will open in pairs correspondingly, and thus admit the water to chamber A, whence it passes into chamber B, and is iinally dischargedat C.

I do not claim the combination, in a pump, 'ot'alternately reciprocating pistons and a re' eeiving and exhaust chamber; but

l. The combination of block G, containing the exhaust-chamber B and passages, as de# scribed, the block F, having the recess or receiving chamberA and ports a, the` valves d d and e e, and plungers D D, as shown and described.

2. The centrally-pivoted four-armed valve E, having the bent lever-arm c for operating it, in combination with the induction-ports a, as shown and described.

Witnesses H.' E. GULLAN, J. G. FERGUSON,