US43124A - Improvement in pumps - Google Patents

Description

UNITED STATES PATENT OFFICE..

JOHN MUNSON, OF SAN JOS', CALIFORNIA.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 43,121, dated June 14, 1864` To aZZ whom it may' concern:

Be it known that I, JOHN MUNsoN, ot San Jos, in the county of Santa Clara ,and State of California, have invented certain new and useful Improvements in Pumps; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the vaccompanying drawings, making a part of this specification, in which- Figurelis a vertical section of my invention taken in the line w fr, Fig. 2 5 Fig. 2 a vertical section of the same taken in the line y y, Fig. 1.

bimilar letters of reference indicate corresponding parts in the two figures.

This invention consists, first, in a novel tripvalve arrangement for admitting of the escape of water from the eduction-pipe of the pump after each operation of tne same, whcreby the pump is prevented from being inoperative in winter by freezing, and fresh, cool water always obtained in summer.

The invention consists, second, in a novel construction of the plunger of the pump, whereby the former is made to serve as an air vessel as well as a plunger and considerable expense saved in the construction of the pump, and the latter also materiallyr simplified.

The invention consists, third, in the employment or use of a cap attached to the pumpbox at the top of the well or cistern and provided with a brake-joint, as hereinafter fully shown and described, whereby a very simple, economical, and durable means is obtained for a pump-xture at the top ofthe well or cistern.

To enable those skilled 'in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the cylinder of thc pump,

which may be of any suitable dimensions and submerged near the bottom ofthe well or cistern. The pumpcylinder has an opening, a. in its side, near its upper end, and the lower end of the eduction-pipe shown in red, is attached to it, the opening a forming a communication between the pump'cylinder and the eduction-pipe, the latter extending upward to the top ot' the well or cistern and passing through the pump-box, which is also shown in red.

B represents a hollowplunger, which is less in diameter than the pump-cylinder A, and

has a piston, O, attached to its lower end. The piston is made separately from the plunger, and is attached to it by bolts D D, the heads b b of which are fitted between lugs c, cast at the inner sideof the plunger, as shown clearly in Fig. 1, the bolts passing through the piston and having nuts d ontheir lower ends. The piston is provided with a suitable packing, E, and also provided with a valve, F, opening upward. (See Fig. 1.) The lower end of the plunger B communicates at all times with the interior of the pump-cylinder A, a space or openings being allowed between the piston and plunger, and the valveF is provided with a stem, e, which works in a guide, f, at the lower part of the plunger.

G represents the check or retaining valve, which is-at the bottom (LX of the pump-cylinder. This valve is fitted or works on pivots g in a frame, H, the latter being secured to the bottom of the pump cylinder with packing h interposed between. The frame His formed or cast with a central projection, z', which eX- tends upward a suitable'distance, as shown in both gures. The object of this projection will be presently seen. Iis the tubular dange, which is directly underneath the valve G, and to which the induction-pipe, if any be used, is attached. The top of the pump-cylinder is provided withastufting-box, l', through which the plunger B works.

From the above description it will be seen that when the piston O ascends the valve F closes and a suction is produced in the pumpcylinder underneath the piston, the valve G opening and the water passing into the pumpcylinder, while the water in the pumpcylinder above the piston, which was drawn into it at the previous stroke, will be forced up the eduction-pipe through the opening a. During the downward movement of the piston the valve F opens, and the water in the pump cylinder below the piston -is displaced and forced upward through the eduction--pipe. Thus a continuous stream is forced upuad through the eduction-pipe. At the end ofthe pumping operation the piston is forced down to the bottom of the pump cylinder A and the projection t' causes the valve F to remain open or prevents it from closing, while at the same tme one of the bolts, D, will strike one end of the valve G and cause it to open, as shown in red, Fig. 1, thereby allowing the water to Y escape, so that the Water in the eduetionpipe will reach the level of the surface ot the water in the Well or cistern. By this means the eductionpipe is prevented from freezing up in Winter, and cool, fresh Water obtained in summer. The plunger, in consequence of being hollow, serves as al1 air-chamber and renders-the flow of water from the eductionpipe uniform.

J represents a cast-iron plate, which is secured to the upper end of the pump-box, and through which the upper end of the inductionpipe passes, as shown in red, Fig. 1. This plate J has a socket, K, attached to it by a pin, j. The socket K may be of cast-iron and composed of a dat plate, la, having a lip or flange, l, at one side oi' it and a projection, m., at its innerend, to receive the bolt which connects the plunger-rod to the socket K, as shown in red, Fig. 2. The pin j passes through an upri ghtlug, n, at one side oi' plate J, and the brake or handle ot' the pump, shown in red, is bolted to the socket K. By this arrangement a veiy simple, economical, and durable brake, jointis obtained.

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

l. The check or retaining; valve G, tted in the frame H, provided With a projection, I, and arranged in relation With the valveF of the piston C and the bolts D thereof, or other projection attached, solas to cause both Valves to be opened and -remain open when the piston is at the bottom of the pump-cylinder, and thereby adniit ofthe escape of the Water, substantially as set forth. 2. rlhe hollow plunger B, attached to the piston C to operate as an air vessel or chamber, as specified.

3. The plate J with the socket or brake-- joint K, attached substantially as described.

JOHN MUNSON. Witnesses:

D. ROBERTSON, M. M. LIVINGSTON.

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