US711858A - Means for pumping water under hydraulic power. - Google Patents

Description

No. 7||,858`. Patented oct. 2|, |902.

.L D. Hos. MEANS FUR PUMPING WATER UNDER HYDRAULIC POW-ER.

(Applicatiun ed Jan. 23, 192.)

2 Sheets-Sheet l.

(No Model.)

Ill l l ITT" Patented Oct. 2|, |902. J. D. HUBBS. MEANS FOR PUMPING WATER UNDER HYDRAULICv POWER.

(Application filed Jan. 23, 1902.)

-2 Sheeis-Sheet 2.

(No Model.)

Ill Q 2 m: cams Prrzns co Mom-Lamo.. wAsmNoToN. n. c.

UNITED STATES PATENT OFFICE.

JOSEPH D. HOBBS, OF MEDIAPOLIS, IOWA. i

MEANS FOR PUIVIPING WATER UNDER HYDRAULIC POWER.

SPECIFICATION forming part of Letters Patent No. 71 1,858, dated October 21, 1902. Application tiled January 23,1902. Serial No. 90,964. (No model.)

To aU whom it may concern:

Be itknown that I, JOSEPH D. I-IoBBs, a citizen of the United States, residing at Mediapolis, Des Moines county, Iowa, have invented certain new and useful Improvements in Means for Pumping Water Under Hydraulic Power, of which the following is a specification. y

My invention relates to means for pumping water under hydraulic power; and it consists in the features and combinations of parts hereinafter particularly described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view of the invention with parts in section. Fig. 2 is a vertical sectional view of the invention. Fig. 3 is a plan view of Fig. 2 with parts in section.- Fig. 4 is a sectional plan view substantially on line 4 4 of Fig. 2. Fig. 5 is a perspective view of a detail. Fig. 6 shows a supply for the hydraulic power.

In the drawings the pumping-cylinder 1 is of substantially ordinary form, having heads 2, a pumping-piston 3, suitably packed, and a hollow piston-rod 4extending through stuing-boxes 5, carried by the partitions or heads 2. The eXtreme ends of the piston-rod are provided with piston-heads 6, working in chambers 7 and forming continuations of the casing of the pump-cylinder. These chambers have reduced extensions 8, in which the piston-heads move. Hydraulic power is supplied to the said chambers 7 8 through ports 9 from a valve-casing 10, which contains a sliding valve 11 of cylindrical form. This valve has ports 12 at its upper and lower ends arranged to communicate alternately with the upper and lower chambers 7 and 8 through the upper and lower ports 9. The valve has sliding movement in its casing, being held and guided by a pin-and-slot connection 13 14. The valve has iXed to its interior two heads 15, with an air chamber formed between these heads, and avalve-rod 16 is. connected with these heads and extends beyond the casing, having hollow bodies or iioats 17 on its outer end. Pressure-water is supplied to the valve-casing and to the interior of the valve to flow through the ports 12and 9 from a pressure-chamber 18,

which connects at proper times with the interior of the valve through the ports 19 and 20, formed, respectively, in valve-casing and in the cylindrical wall of the valve. From Fig. 4 it will be seen that the pump-cylinder is arranged eccentric or to one side of the center of the main casing 21, and this will leave a chamber 18 between the two, which I utilize as the pressure-chamber, to which the pressure-water is supplied. In this pressurechamber, as before stated, the valve-casing is arranged as shown in Fig. 4. The pressure-water is supplied from any suitable source through inlet-pipes 22, branching off from a main supply-pipe 23. These branch pipes extend through upper heads 23 24',

with which the main casing is provided at the upper end thereof.

The water to be pumped from the well in which the apparatus is placed is supplied to the pump-cylinder through ports 24, formed on the outer or main casing one above and the other below the position of the pumppiston. These ports are controlled by inlet check-valves 25, working in small cylinders 26, through which the ports 24 are formed. These valves besides controlling the flow of water from the well intov the pump-cylinder control also the outlet of the water from the pump-cylinder to the discharge-pipes 27, connected one to the upper small cylinder 26 and the other to the lower cylinder 26, this latter connection being made through the pipe 28. Referring toFig. 4, the valve 25 is in its position to allow the water from the well to flow into the pump-cylinder through the port 29, forming a continuation of the port 24. This inflow of water to the pump occurs, of course, whenever the pump-piston moves away from the valve toward the opposite end of the cylinder, the valve then acting as an ordinary inletvalve. yWhen the pump-piston moves toward eitherend of the pump-cylinder, the valve at that end closes upon its seat at 30, thus closing communication with the well and opening communication through the port 31 with discharge-pipe 27, before mentioned. The main casingis closed also at its lower end by a head 32, thus completing the pressure-chamber 18 at the lower end of the apparatus. The valve is controlled by the movement of the pumping-piston, and for this purpose I provide shown in Figs. 1 and 2 and suitable connection is made with the supply of hydraulic power the operation will be as follows: The pressure-water entering through the pipes 22 into the pressure-chamber enters the upper part of the valve-casing and passes into the upper portion of the valve through the ports 19 and 20, and thence passes by way of the ports 12 and 9 into the upper piston-chamber 8 and acting here upon the larger upper side l of this piston the same, together with the pump-piston, will be forced down and the water contained in the pump-cylinder below the pump-piston will be forced out through the port 24 and will pass thence through the l;y

pipe 28 to the discharge-pipe 27. As the pumppiston moves down the water. from the well iows through the ports 24 and 29 past the valve 25 into the pump-cylinder on the upper side of the pump-piston ready for its delivery through said port 29, port 31, and dischargepipe 27 when the pump-piston makes its upward stroke.

As the pump-piston is about to complete its downward movement the up-j per pressure-piston strikes the arm 35 of the; catch and swings it inwardly, and this action effects two purposes. Itwithdraws the catchpin from the float and allows the valve to immediately reverse its position under the pressure of the water in the upper part of the` valve acting upon the fixed head 15 in the valve, it being understood that at this time the lower portion of the valve is free from pressure by reason of the fact that the inletopening 20 of the valve is out of line with the inlet-opening 19 of the valve-casing. The reversal of the valve cuts off the water from the upper pressure-chamber and admits the pressure-water to the lower pressure-chamber, and the pumping-piston is thus moved upwardly by the hydraulic power acting upon the lower pressure-piston 6. The operation of the catch-lever 34 in the upper pressurechamber causes the valve-disk 36 to be removed from the discharge-opening of the upthe valve the action of this valve is rendered easy, as the ioat tends lto sustain the weight of the valves.v

It will 'be noticed from Fig. 2 that the piston-rod is hollow and the pressure-pistons form closures for the upper ends thereof, thus providing a float for the pumping-piston.

The tank for supplying the hydraulic power is shown in Fig. 6, the discharge from this tank consisting of a downwardly-extending tube, which, as shown, is tapered. This is connected with the supply-pipes leading to the pressure-chamber. A suitable weight may be employed, as shown in Fig. 6, to get the desired pressure of water. This weight is supported by a Boat X, which fits the tank closely at its lower edge. The float is lled with air, and any suitable number of weights .may be arranged thereon to press it down.

From the float a stem 'y extends upwardly. This is in the form of a tube perforated to supply air within the tank above the said tloat.

I Aclaim as my invention- `1. In combination, a pumping-cylinder, a pumping-piston therein having its piston-rod extending through the head of the cylinder, pressure-pistons on the ends of said pistonrod, pressure-chambers in which said pressure-pistons operate, a valve controlling the inlet-ports to the pressure-chambers, said valve being of elongated form, a head iiXed within the valve, means for holding the valve in the position into which it is set, said means being adapted. to be controlled at the nal movement of the said pressure-piston, substantially as described.

2. In combination, a pumping-cylinder, a pumping-piston therein, a piston-rod extending through the heads of the pumping-cylinder, pressure-chambers at the ends, pressurepistons connected with the piston-rods insaid chambers, a valve for controlling the hydraulic supply to the pressure-chambers, said valve having a piston to be acted on 'by the pressure-water, means for holding the valve in the position to which it is moved, valves for controlling the outlet of the water from the pressure-chambers, said valves and holding means being controlled by the movement of the pressure-piston, substantially as described.

3. In combination, a main casing, a pumpcylinder arranged eccentric thereto leaving a space between one side and lthe inner wall of the casing to form a. pressure-chamber, a valve-casing arranged in said space and having ports communicating therewith, a valve operating in said casing, a pumping-piston in the pumping-cylinder, means for lsupplying the pressure-chamber with water, and pressure-chambers having pistons therein connected with the pumping-piston, the supply to said pressure-chambers beingcontrolled by the valve, substantially as described.

4:. In combination, a casing, a pumpingcylinder arranged therein eccentric to the roov IIO

easing to forma, pressure-chamber -between the pumping-cylinder, substantially as dethe pumping-cylinder and said easing, means scribed. IO forsuppl'ying water to said pressure-chamber, In testimony whereof I affix my signature :L valve controlling the flow of Water thereto, in presence of two Witnesses.

pressure-pistons operated by the pressure of JOSEPH D. I-IOBBS. water, discharge-pipes and valves 25 oontrol- Witnesses:

ling the outlet of the Water through said pipes HENRY E. COOPER,

from the pumping-cylinder and the inlet to C. S. MIDDLETON.

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