US44272A - Improvement in pumps - Google Patents

Description

Il Erice.

VILLIAM S. KELLY, OF SCHENEG'IADY, NEV YORK.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 114,272, datel September 13, 1864.

To all whom, it may concern:

Be it known that I, WILLIAM S. KELLY, of Schenectady, coun ty ot' Schenectady, and State ot' New York, have invented a new and Improved Pump; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, makin ga part of this specification, in which- Figure lis a diametrical section through my improved pump. Fig. 2 is a side elevationot' the pump. Fig. 3 is a view of the piston-rod and valve-box removed from the pump-cylinder. Fig. et is a horizontal section through the stntlng-box, taken at the point indicated by red line xx, Fig. 1. Fig. 5 is a section through the discharge-orifices of the pistonrod, indicated by the red line y y, Fig. 3.

Similar letters of reference indicate corresponding parts in the several figures.

rIhis invention relates to certain new and useful improvements in pumps, wherein I use a center-discharge or hollow piston-rod, and conduct the water from the base ot' the pump up through said piston-rod into a stationary vessel, from which latter the water is finally discharged through a pipe and air-chamber.

My invention also relates to certain improvements on thev pumps which have already been patented to me, in so far as the employment of a hollow piston with upper and lower passages for the water and one valve closing both passages, and also the use of a stationary receiving-vessel for receiving the water from the piston rod and discharging it into the service-pipe.

The object of my invention is to combine the receiving-vessel with the body of the pump in such manner that the latter is rendered more simple and compact and the necessity of employing a separate receivingvessel rendered unnecessary, all as will be hereinafter described.

To enable others skilled in the art to make and use my invention, I will describe its construction and operation.

In the accompanyingdrawings, A represents a valve-box, which is suitably bolted to the base of the pumpcylinder B and side passage, B. rIhis valve-box is divided into two compartments by a vertical division, a, which compartments are adapted for receiving ballvalves b b", that rest upon seats a. c2 and prevent water from escaping downward after it once enters the pump. As the spaces within which the ball-valves b b are arranged are as large as the chambers B B above them, nar row bars are secured over these balls, as shown at c c', which prevent the latter from rising too high when the water is drawn into the pump.

The pumpcylinder B is provided with a side passage, B', which communicates with it through a port, d, for the purpose of causing the piston U to draw water into the cylinder B in its descending stroke, as indicated by the course ot' the arrowsin Fig. 1. When the pistou C is drawn upward, the valve b', at the base of passage B', falls and closes this passage at the same time that the valve b opens and allows water to rush into the cylinder B beneath the piston C. The piston G is constructed with a valve-chamber, c, and an upper and lower induction-orifice, e e2, and within the piston-chamber e a ballvalve, f, is applied, which closes the upperorice, c', as the piston descends, and thus allows water to enter through orifice c2, or as the piston asccnds the ball j closes thelower oricc, e2, and causes the water to enter through oritice e. The Water which enters the piston-chamber c is all forced upward through a hollow piston rod, C', and discharged into a receiving-vessel, G, through openings g g, from whence it is conducted ottl through a discharge-pipe that is applied to the oriiice g'.

All that portion ot" my pump which relates to the mode of getting water into the cylinder B and forcing it out ot' this cylinder may be constructed upon the princi ples which are clearly set forth in my present patents, dated February 25, 1862, and August 23, 1864, for double-acting hollowpiston force-pumps; but I do not contine my present invention and improvements exclusively to such pumps, as other forms may be conveniently employed for forcing the water through a hollow piston into the receivingchamber G.

The receiving-vessel G is represented in thc annexed drawings as being cast with t-he body of the pumpi. e., the cylinder B and side passage, B. Heretofore this vessel has been a separate contrivance and isolated from the body of the pump; but as objections attend such an arrangement, I now cast or otherwise apply this vessel directly to the top of the pump-cylinder. In order to accomplish this it is necessary to provide a means for packing the piston at the point wherelthe two chambers B and G are joined. This is done by casting or otherwise forming on the inside of the vessel G, at its lower end, an annular recess, h., which is packed with any suitablematerial which will i'orm a water-tight joint around the piston-rod C and at the same time allow this piston to move freely through it. It' the parts B and G are cast in one piece, this packing is introduced through holes z' t', which are afterward closed by means of plugs j j; but if the parts B and G are cast separately and then bolted together, a packingbox may be introduced between them, or the annular recess h may still be used. The advantage of the openings i t' would be felt in either case, as they admit of a renewal ot' the packing at pleasure.

As the packing at the junction of the two chambers B and G will prevent any of the water in the chambers B B from escaping around the piston rod, all the water must necessarily pass up through the piston-rod, as I have above described, and enter the receiving-vessel G through the openings g in this piston-rod. Ihat portion of the piston-rod G which extends above the openings g is tubular merely for the purpose ot' giving lightness to it; but, it' desirable, this extension of the rod may be made solid, with a suitable coupling on its upper end for connecting the pump-rod H to it. It' made tubular, the upper end should be closed, so as to prevent the escape oi'water at this point. That portion of thel rod C which extends above the dischargeopenings g passes through the upper end of the vessel G, and through a suitable stuffingbox applied at this point, so that the openings g can discharge all the water directlyinto the vessel G, and also so that the pump-rod can be applied to the piston above the. vessel G, and a stroke given to the piston-rod equal t0 the length of said vessel. The discharge-pipe, which is not shown in the drawings, is applied to the orifice y at the upper end of vessel G, as shown in Fig. l, to which orifice the water is conducted by means of and offset, Gf; but, if desirable, the chamber G- may be made of sufficient diameter to admit ofthe application of the discharge-pipe directly to the side or end of the said vessel. The ott'- set G serves as an elbow for the dischargepipe, which latter rises vertically through the well, and it also serves as a means for securing the pump to the timber used t0 hold it in the well.

It will be seen from the above description that the pump and also water-receiving vessel G are secured together in such a manner that a hollow piston-rod can be practically used as a means for discharging the water from the body of the pump into said vessel, from which the water can be conducted by a stationary discharge-pipe leading to the air chamber, and thence out at the top of the well. The advantage of this arrangement over the detached receiving-vessel is, that the pump can be set up and putin working order with much greater facility than hitherto, and also that the settling or warping ofthe timber which sustains the pump will not in any manner change the position of the working parts or cause thev pistonvrod to bind or work hard in its packingboxes.

The entire pump is rendered simple and compact by my invention, and less expense attends its construction.

Having th us described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. Casting or otherwise applying a receivingvessel, G, directly to the body of the pump in such manner that the water shall be forced through the piston-rod into this vessel before entering the discharge-pipe, substantially as described.

V2. Passing the pistonrod up through the receiving-vessel G, when the latter vis secured to the body of the pump, substantially as' described.

3.v In a pump having a receiving-vessel, G, applied directly to it, connecting the pumprod to a hollow piston-rod at a point directly above said vessel, substantially as described.

4. Conducting the water from a receivingvessel, G, having a piston-rod passing through it, and otherwise operating substantially as described. l

5. Introducing a water-tight packing for the piston-rod between the chamber of vessel G and the pump-cylinder through it', substantially as described.

6. Constructing the receiving-vessel G and the cylinder of the pump with an annular recess within the neck ot' the former, adapted for receiving any suitable material J'or packing the piston-rod, substantially as described.

7. Providing for renewing the packing in the annular recess h when the vessel G and pump cylinder are cast in one piece by means of openings t' t', substantially as described.

8. Closing the piston-rod C above the openings g g, substantially as and for the purposes described.

9. Applying the receiving-vessel G, either by casting or otherwise, directly to the body of a pump having a hollow piston-rod, substantially as described.

XV M. S. KELLY.

Witnesses:

R. T. CAMPBELL, E. SCH/AFER.

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