US2370A - Mode of constructing ptjslps - Google Patents

Description

ITED 'STATES PATENT @FFl't-CF.

JOEL FARNAM, OF STILLW'ATER, NEV YORK.

MODE OF CONSTRUCTING PUMPS.

Specification of Letters Patent No. 2,370, dated November 16, 1841.

To all whom may concern Be it. known that I, JOEL FARNAM, of Stillwater, in the county of Saratoga and State of New York, have invented a new and useful Improvement in Double-Acting Horizontal Pumps for Raising and Forcing lVater, which is ldescribed as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure 1 is a vertical longitudinal section. Fig. 2 is a vertical transverse section. Fig. 3 view of the under-side of the pump turned up-the cup being removed in order to show the apertures in the bottom plate. Fig. 4 horizontal section of ditto.

Similar letters refer to corresponding parts.

This improved pump consists of a horizontal cylinder A cast solid at one end and closed at the other end by a circular head H screwed or bolted to the cylinder, through the center of which the piston rod I passesthe piston J working in said cylinder having two chambers K1 K2 formed around its outer surface divided or separated from each other at the center above and below the cylinder by partitions Dl D2 into which chambers the water is alternately7 raised by the alternate movement. of the piston said chambers K1 K2 having a communication with the cylinder by means of two tubes or trunks Y made in castings C1 C2 cast on the bottom of the cylinder-and two small openings O1 O2 made in the bottom of the cylinder, one of said opening O2 being near the solid end of said cylinder, and the other O1 near the end of the cylinder closed by a screw cap. The bottom plate Q. of said chambers having two rectangular' openings for two valves F1 F2 fastened to the lower cup E opening upward into the chambers one on each side of the lower partition D2 for the admission of the water passing through the cup E bolted to the underside of plate Q to the top plate of which cup the aforesaid valves F1 F2 are attached and to which the conducting tube is fastened; sald valves shutting off the return of the water at the return stroke of the piston by dropping down on said top plate of the cup. And

the upper plate R of said chambers having two valves G1 G2 opening upward into an upper or discharging cup P into which the water is forced said valves shutting down upon top plate R and preventing the return of the water at the reverse movement of the piston; to which cup the discharging tube is attixed. The aforesaid communicating tubes or trunks Y leading from the outside chambers K1 Y2 to the interior of the cylinder A being formed in two proliections or castings C1 C2 as before stated. cast. on the under side of the cylinder diagonally opposite each other one on the right of the lower partition D2 next the solid end of the. cylinder and the other on the left of said partition Dl next the end of the cylinder closed by thev cap H.

As the piston moves toward the solid end of the cylinder the water is forced to follow it by the atmospheric pressure, passing through valve F1 Fig. 2 (not seen in Fig. 1 being in the chambers on the opposite side of cylinder) and through the tube or trunk Y into the cylinder through the aperture O1 while the piston forces the water in the cylinder next the solid end through the opening 02 back into the chamber K1 and up through the valve G1 into the discharging cup P; at the same time closing the valve F2 over the receiving cup E on one side of the lower partition D2 and opening the valve Fl in chamber K2 and closing valve G2 of the cup l), which, on the return of the piston is opened to allow the water to escape from the end of the cylinder next the screw cap H while the corresponding valve F1 over the receiving cup is closed to prevent the ret-urn of the water through said cup and its escape at any other place except. through said valve C2 and in this manner a double action is kept up as the piston moves back and forth-the aforesaid pump being cast in one piece except the screw cap, piston, valves, and cups.

What I claim as my invention and which I desire to secure by Letters Patent. is-

Combining the receiving and discharging cups E and P with each other and with the cylinder A by means of a double chamber connected by trunks with the cylinder as set forth-that is to say, constructing the pump with a chamber K around the outside of the cylinder, divided by partitions D said chamber communicating with the cup E and P and also with the cylinder A at either end by two tubes or trunks Y formed in arms or projections C cast on the under j /f/ g 2,370

side of the cylinder, one next the solid end Kl K2 at the alternate backward and forof the cylinder on the right of the lower ward stroke of the piston J as described.

Jzutton and the other next the end of the Vlinder closed by the screw cap, on the left JOEL FARNAM' 5 of the said partition-both being for the VitnesseS: purpose of conducting the water to and WVM. P. ELLIOT,

from the cylinder through the chambers EDW. MAHER.

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