US450535A - George a - Google Patents

Description

(No Model.)

G. A. SMITH. PUMP.

No. 450,535. Patented Apr. 14, 1891.

UNIT D STATES;

PATENT Canton. 4

GEORGE A. SMITH, OF PAULDING, OHIO, ASSIGNOR OF THREE-FOURTHS TO CHARLES E. LOTT, CHARLES S. JACKSON, AND RALPH D. \VEBSTER, OF

SAME PLACE.

PUMP.

SPECIFICATION forming part of Letter s Patent No. 450,535, dated. April 14, 1891.

Application filed November 13, 1890. Serial No. 371,349. (No model.)

To all whom it may concern..-

Be itknown that I, GEORGE A. SMITH, a citizen of the United States of America, residing at Paulding, in the county of Paulding and Stateof Ohio, have invented certain new and useful Improvements in Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 1t appertains to make and use the same, reference being had to the accompanying drawing, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in force-pumps.

The object of the invention is to provide a pump which is simple and effective in operation, and when operated will give a continuous flow of water from the pump-spout; and it consists in a pump in which the piston-rod and pump-stock are alternately raised and lowered, said parts being connected to a common lever, the device acting both as a suction and lift pump.

In the accompanying drawing, forming part of this specification, the figure is a side view, partly in section.

A refers to the platform above the well or cistern,-to which is rigidly secured a standard 3 B, acting as a fulcrum for a lever C. To the end of this lever the pump-stock or vertical pipe D is connected in any suitable manner, and upon the other side of its fulcrum is pivoted the piston-rod. The distance between the fulcrum and points of connection of the pump-stock and piston-rod may be varied according to the diameter of the stock or pipe and cylinderin which the piston works. The piston rod and pipe D pass through suitable 4 guides attached to the platform A, and the 'end of the lever is preferably connected to the pump stock or pipe D by means of a slotted band d, clamped thereon by a bolt, as shown. The lever, near its free end, carries an adjustable weight W, which acts as a counterpoise or balance for the weight of the pipe D.

To thelower end of the pipe D is connected a T-coupling F, to the lower end of which is 5 secured a short section G, preferably rectangular in cross-section, which contains a horizontal valve-seat to which is pivoted the valve g. Below the valve-seat g the section G has an opening G, over which plays a valve 9 opening inward. The section G is con- .nected by a curved pipe II to the cylinder I, in which plays the piston c. This cylinder is also rectangular in cross-section, though it is obvious it may be cylindrical without depa rting from Inyinvention. The cylinder I above the limit of the upward strokeof the piston is provided with an opening I, covered by a valve i, which opens inward. The upper end -of the cylinder is closed by a suitable plug and packing, through which the piston-rod plays. The cylinder I has a horizontal oifset with flanges, to which is connected a section K, carrying a valve 7.0, this section being also connected to the T-coupling F by a union or otherwise.

The lever C adjacent to its fulcrum is provided with projections or lugs which are adapted to abut against the standard to limit the oscillation of said lever, and when the lever is not provided with such projections bands are attached to the pipe D above and below the platform to abut against the same and answer the same purpose.

The parts G, K, and I are, .as heretofore stated, preferably made rectangular in crosssect'ion, the object of such construction being to provide larger openings and valves than could be properly used were they cylindrical and of the same diameter.

In practice I prefer to have the lower portion of the pump submerged, and when the lever is reciprocated' the water will enter through the ports G and I, and a few strokes will till the pump-stock D. On the upstroke of the piston-rod the other parts of the pump will descend, and the water above the piston will be forced out of the exit-opening of the pipe. On the reverse stroke of the lever the pipe D and parts connected thereto will be raised and the piston lowered, which forces the water previously drawn into the connection II by the upstroke of the piston above the valve g and out of the exit'opening in the pipe D, thus giving a constant and unbrokenstream of water as long as the lever is operated. It will be noted that the water is forced as the parts are reciprocated, and that the valves are so positioned that the spaces above and below the piston are being filled While the opposite face of said piston is forcing the water. As the lever operates the piston-rod and rigid parts of the pump connected to the pipe D in opposite direc- 5 tionsthatis to say. whilethe pipe D is movingup the piston-rod is moving downward the length of thestroke of the lever is reduced one-half and the pump rendered doubly effective.

I am aware that prior to my invention it has been proposed to vertically reciprocate the pump-tube and cylinder having a stationary piston-rod, and I do not. claim such construction as my invention, for it is obvious [5 that if the piston-rod in my present invention was held immovable the effectiveness of the pump would be reduced more than onehalf, and it would require more power to operate the same, the parts not serving to coun- 2o terbalance each other.

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

l. The combination, in a pump, of a verti- 25 cally-movable dischargepipe carrying; and

having rigidly attached thereto valve-connec- 1 i l i tions G and K;"\vhieh communicate with a cylinder, the cylinder and connection G, having valved openings G and I, a piston-rod connected on one side of the fulcrum of an operatingdever and the discharge-pipe on the other, substantially as set forth.

The combination, in a pump, of a cylinder having a closed upper end, a valved opening above the limit of the upward movement of said piston, a valved tube connecting the upper portion of the cylinder with the discharge-pipe, a connection or box G, having a valve g and a valve-opening G, and a pipe connecting the lower end of the cylinder with the connection G, the pipe D, to which the aforesaid parts are rigidly connected, being connected to the piston-rod E, so that the parts will be alternately reciprocated, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE A. SMITH.

Witnesses:

EUGENE W. JOHNSON, ll. L. BEALL.

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