US92621A - Improvement in pumps for continuous discharge - Google Patents

Description

thrttd 5t-atta 'atwt --tyiiiie Letters Patent No.- 92,621, dated July 13, 1869.

IMPROVEMENT IN PJMPS FOR. CONTINUOUS DISCHARGE. Y

The Schedule referred to in these Letters Patent and making part cf the same.

To all lwhom it may concern:

Bo it known .that I, SAMUEL D.-LoUNr, of Rathbone, in the county of Wirt, and State of West Virginia, have invented a new and improved Pump;` and I do hereby declare 'that the following is a full, clear, and exact description of the construction and operation ofthe saine, reference being hadto the accompanying drawings, making a part of this specificaion, in which- Figure l is a cross-section through'line yy of iig. 2.

Figure-2 is a longitudinal section' through line x x of 1. Y

'Ihe object of this invention is to cause the pump to throw a i'ull and rapid strcarnof water continuously, and with uniform velocity.

Io this end, it is provided with three plungers, all operating in turn upon the same stream ofwatr, and

worked by a cam, crank, or other equivalent device,`

, turn to take their places for another throw.

In the drawings- M M is the fra-ine of the-pump.

P, the pulley, which applies the power.

S, the driving-shaft. v C, a cani-wheel on shaft S, having an inclined groove, c, around it, as shown in iig. 2.

Il Bl B2, three plunger-rods, caused to reciprocate, oneafter the other, by the' movement of cam c, as shaft S is rotated. i

A A A2, three cylinders, connected by the passages E E'.

F l1" It, the pump-pistons, attached to the rods B Bl B, and operating in the cylinders A A1A", respectively. 'i

G, the induction-pipe.

H, the eduction-pipe.

a a' ai a?, valves opening upward, vand al al, valves opening downward, the water, in its passage through the pump, taking the direction indicated by .the ar-` should all be set in a semicircle, as shown in iig. 1, at.

interval:` oi sixty degrees from each other.

lln` object ot' this construction is, that the water may always be impe-lied by that crank, or that part of the cam, \\'hi1.h is moving up or down most rapidly at any particular time, while those cranks or portions of the cam-track which are passing the dead-points shall have ceased for the .moment to have much, if any ei'- l'ect upon the stream.

'For example, the rod of piston F, fig. 2, is at its highest elevationgand passing the upper dead-point. Atjthis moment,v thenext piston moved by that por'- tion of the caln-trackwhich descends most rapidly, is

being swiitlyforced downward, with its valves closed,

and pushing' before it :all the water in its cylinder.

lhe effect of the swifter motion of piston F1 is to draw open the two valves of piston F, and keep a rapid ow ot' water following, while, at the same time moving more rapidly than\ piston F2, .which is at or near the lower dead-point, it forces the water at o, through the passage E. into cylinder A2, and through valves a to the eduction-pipe.

As soon as the piston F1 approaches its dead-point,

one of theothers is nearing the point where it moves upward most rapidly.`

In every ease, the lifting or forcing-power is necessarily applied by the most 1apidlymoving piston, and the water driven by' this piston faster than the other pistons are movlng, opens their `valves, andpasses f top of one cylinder to the bottom of the next.

I'do not desire to claim,broadly, a pump having three cylinders, for I am aware that' pumps having even a larger number, have, for a long time, been in use. l

In my invention,`as before remarked, the three .cylinders (andthere may be more of them) are but parts of one passage-way for the water, and the three pistons all operate upon the same continuous stream. Vhat I claim as new, and desire to secure by Letters'Patent, is-

1. A pump having but one water-passage, in which are combined three or more pistons, F E F2, with valves, when so constructed that the intermediate one operates in. a-direction opposite to that of the two extremeones, substantially iu the manner and for the vpurposes specified. l

2. The combination and arrangementaofthe shaft S, cam-wheel C, rods B Bl B?, cylinders A Al A2, pisvtous I F1 F2, and valves a (il ai, when constructed to operate substantially as vand for the purposes herein set forth.

SAML. D. LOUNT.

-Witnesses CHAs. A. PETTIT,

NATHAN K. ELLsWoR'rH..

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