US1864412A - Pump - Google Patents

Description

E. A. DAVIS June 21, 1932.

PUMP

Filed Sept. 29, 1930 2 Sheets-Sheet 1 FIG. 6.

INVENTOR- Ennn AI] Elvis BY MM,

F IG. 1.

ATTORNEYS.

June 21, 1932. E. A. DAVIS 1,864,412

PUMP

Filed Sept. 29, 1930 2 Sheets-Sheet 2 FIG. 3.

INVENTOR.

' Bum-1 AD avis BY Z I. Z

0/, ATTORNEYS Patented June 21, 1932 UNITED STATES ELTON A. DAVIS, 01? PADRdNI GOIJORADO PUMP.

Application filed September 29; 1980. Serial No; 485,198. 3

This invention relates to liquid pressure pumps, an object of the invention being to provide a continuous supply of liquid, such as water, under pressure. A nother object is '5 to provide a pump, which may be positioned in wells of any depth, and which will effectively deliver a continuous stream of liquid therefrom through a pipe line. Another object is to provide a pump, of the general 10 character described, which will require only a small amount of power for its operation, this power being supplied either by a prime mover, or by hand. Another object is to provide a. pump, which will be practically "15 automatic in its operation, and which will be of such simple construction as to practically eliminate the possibility of its fail ing to properly function. Other objects may later become apparent.

In the accompanying drawings:

Figure 1 is a vertical sectional diagrammatic view of a liquid pressure pump, con structed in accordance with this invention, and applied to a. well of liquid, this view being shown broken, to indicate that the parts are actually longer than shown.

Figure 2 is an enlarged detailed showing of Figure 1, this view also being broken.

Figure 3 is a view partly in elevation and partly in vertical section,,o'f the submerged cylinder shown in Figure 2.

Figures 4 and 5 are respectively a vertical sectional view and a side elevation of the operating valve shown in Figure 2.

Figures 6 and 7 are views similar to Figures 4 and 5 respectively, the lever being shown thrown in another position.

Figure 8 is a side elevation of the reverse side or the valve shown by Figures 4 to 7.

In these drawings, similar numerals refer to similar parts throughout the several views.

The invention is characterized by the use of two cylinders, A and B, the cylinder A being positioned beneath the level of a liquid body and the cylinder B being positioned above this level.

As shown the cylinder A is positioned in a well casing 10, well beneath the level of the liquid body 11. This cylinder A may be positioned in any manner, a pedestal 12 being 1 compressed air from a tank 31. v may 'b'e'supplied with airi'by hand or motor driven pump in a conventional manner; The

valve 29 iszpreferably of the rotary type containinga rotatable body 32, which is operated 85 -angular'bent'rod'3'6, havingstops-38 and shown for illustrative purposes. The well casing lOisshown provided with a casing head*13..' f

The cylinder: A is shown provided with". a

reciprocable' piston 14, having a piston rod'15 55 passingztlirougli a stuifin'gbox 16 in the head of this cylinder. Inthe upper right" hand side of 'the' cylinder isan" inlet 17: provided withan inwardacting check valve 18, the op positesideof the topbeing provided'with an outlet 19 having an outward actingcheck valve 20. Thebottom of-this'cylinder also hasian'inlet'2l provided with an inwardiact- 'ing check va1ve'22', and an outlet 23 provided, r

withan'outwardacting check'valve 24.v The outward 'acting'check valves 2'O'and 24' are connected-to 'apipe 25, which extends upwithin :the well aca sing, anotout through the casing headi13; M

The cylinder '13. is shown formed with a largeioutwardly extending flange 26', which is clampe d between the casing head'13 andcasing'wall'lOso'as to position the cylinder above the'level? of 'the'i body ofliquid 11; A pipe...

' line 27 is tapped into "the upper'part of this cylinder, and a shorter pipe line 28 is tapped I toithebottom; afourway'valve 29 being interposedbetween these two pipes lines. This valve-ihasalthirdipipe 3O connected'to it, the,

other end of this pipe line being'supplied with This tank by an apertured lever 33. Preferably a spring 34: is connected to this lever, s01 that the valve will be very quick in action.

WVithin the cylinder B isa reciprocable pis- 'toni3'5, the piston rod 15 extending from the cylinder A being. arranged in connection therewith, so that the pistons 35 and 14 will move simultaneously from one end of their respectivecylinders'to the other. A right atiopposite ends thereof, is fixed toithe piston rodv 15 soas to pass through the apertured handle-.33 of the-valve 29.- Preferably the stops. 38 and 39 are adjustably secured to A the rod .36 byymeansiof screw bolts 40.

The pump as shown is entirely automatic in tioned means, a reciprocating piston in each operation. In Figure 2 the valve 29 is in the cylinder, means for inter-connecting sald pisposition shown in Figures 4 and 5. The rotons, and means for introduclng an elastic tatable body 32 in this valve is then in a pofluid under pressure to said second cylinder.

sition to permit air to feed to the bottom of the cylinder B, causing the piston 35 to rise, and to carry the piston 14 upwards. The compressed air, being of an elastic nature will continually keep the water contained in the cylinder A under pressure, so that as water is withdrawn from the pipe 25 from this cylinder, through its outlet 19 and valve 20, the 7 piston 14 will be continually urged upward to maintain a state of pressure. As the piston 14 rises, the check valve 22 will open to permit water being sucked in throughthe inlet 21, the check valve 24 preventing the passage of water back through the outlet 23. As the piston 14 approaches the top of the cylinder, the stop 38 on the rod 36 will butt against the handle 33 of the valve 29, and slowly rise same against the compression of the spring 34 until it has passed a dead center, when this spring will snap the handle quickly to the upward position, thus releasing the compression from the bottom of the cylinder 13 through the free outlet of the valve, and at the same time introducing air under pressure to the top of the cylinder, through the pipe 27. This will force the piston 14 downward so as to displace water therefrom through the outlet 23 and valve 24, the valve 22 closing to prevent escape of water through it, and, at the same time, the valve 20 will close to prevent the escape of water from the pipe 25 at that point, while the valve 18 will open to permit the cylinder to intake water through the inlet 17. As long as water is drawn out through the pipe 25, this cycle of operation will continue, provided the air pressure in the tank 31 is maintained.

The pump described herein enables the prostruction is very simple and it is not necessary to employ a large amount of operating power, as is the case with so many pumping systems. It may advantageously be employed in rural communities where a complicitled pumping system would be objectiona e.

It is to be understood that the invention as here shown and described, is for illustrative purposes, only, and that the scope of the appended claim is not to be limited thereto, but that this claim is intended to be construed broadly.

I claim In a liquid pressure pump the combination of a cylinder provided with a plurality of inlets and outlets, means supporting the cylinder below the level of a liquid body, a second cylinder, means supporting the second cyllnder in adjustable relation to the first cylinder and independently of the first men- ELTON A. DAVIS.

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