US83691A - Improvement in pumps - Google Patents

Description

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THOMAS CHAMBERS, Or ST. LOUIS, MISSOURI.

Y Leemramtlvo. 83,691, zum Nambe 3,1868. 'i l IIWIPIROV'IEEMIIEINT IN PUMPS.

The lSchedule referred to in these Lettera` Patent and making of the same.

To all, whom fit ma/y concern Be' it known that I, THOMAS CHAMBERS, of the city and 'county of St. Louis, and State of Missouri,l have invented a new and useful Improvement in Force-Pumps; and I do hereby declare that the following is 'a full and clear description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of this invention consists in the employment of a small cylinder and piston, in connectionwith \a larger one, the powerbeing applied to the smaller pis,-v ton, which is used to force water or other iluid against the larger piston, or rather against a small auxiliary piston connected therewith;` the'object being to cause the large piston to force a large amount of Water,

or other iiuid, from its cylinder, by means of a comparatively small force applied to the smaller piston,

and a correspondingly small motion of the latter pis- To enable those skilled in the art to make and use my improved pump, I will proceed to describe its construction and operation.

Figurel of the drawings is a one of the improved pumps;

Figm'e 2 is a sectional elevation of one of the valves.

Figure 3 shows a variation in the form of the valve that may be employed. A i f A and B are the two large cylinders, 4which are to be joined together by their ends a b, so as to allow the two pistons A B towork back and forth in their respective cylinders, and have a common piston-rod, O.

-The auxiliary cylinder l), connected with the outer end of the cylinder A, and the cylinder E, connected with the outer end of the cylinder B, are ymuch smaller in diameter, (say one-half,) than the cylinders A B, and they have correspondingly-diminished `pis-' tons 1) E', secured to prolongations of the rod G, which said prolongations of said rod pass through stuffing-boxesin the heads (l e.

Connected with the outer ends of the cylinders D E, by means of sleeves EF, are forcing-cylinders Fl F, which have pistons F2 F2, worked 'by rods F3 F3.

The spacesbetween the pistons D E andthe heads d e,4 also those between the pistons" A. B and the heads ab, are intended to be air or vacuum-chambers, as may be found most expedient.

Valve-openings d el, either with or without valves, may be supplied to-either or all of these chambers, as may be desired; also waste-cocks or pipes di e2, for the purpose of drawing off any condensed moisture that may accumulate therein, or'water that may leak through the packing of the piston or cylinder-head.

rI he induction-pipes G supply water,.or other iluid, to the cylinders A B, and the eduction-pipes G conduct the said fluid therefrom to the 'place to which it is tobe forced or elevated. The valves g, used in these pipes, are of newand peculiar construction.

sectional elevationof The valve-chambers g are hollow spheres, the lower portions of which form the valve-seats. The valves g consequently the valve will rest firmly on its seat, no matter if it be turned a little to one side or Athe other.`

These valves may have a single central stem, g2, to each, the said stembeing guided by the crossrods g3, or each valve may have wings g for guides, as is shownV in iig. 3.

ation will be as follows; i

The sleeves F F, between vthe pistons F2 Fs and DE',are supposed to be ilcd withwater, or some other uid, and one oi" the pistons F2 up, and the-other one down. These two latter pistons should be connected with the opposite ends of the same lever, not shown, so that their upward and downward motions may harmonize with each other in a reciprocating manner. When one of the Ypistons F2 is forced down, it will pressthe fluid between itand the lpiston adjacent to it, up against the said piston, so as to force it back to the other end of its cylinder through the vacuum or air-space contained therein. This motion will necessitate a corresponding motion of the pistons A' and B', and consequently their increased areawill force a correspondingly large quantity of iuid up through the pipes G at each stroke of the pistons. Thus, by the expenditure of a limited amount of power to the pistons F2, and that power applied in a slow time, avery cylinder A orB.

v Although, from the foregoing description, it appears together, thus forming what is usually denominated adoubleacting pump, it is apparent that one-half 'of the machine thus described may be left olf if desirable, and `the'n leave a perfect-working, single-acting pump. If this division of the machine should be made, it will be found necessary to introduce some spring, or something of the kind into the vacuumend of the large cylinder used, so as to force the large piston Aback when it isunloaded.

pose set forth. Y

'THOMAS CHAMBERS.

Witnesses M. RANDOLPH, S. M. RANDOLPH.

are arranged to lit the'- concave seats thus formed, andl vThe pump constructed as above desciibed,the operlarge amount of fluid may be forced upward from the that two of the cylinders A B are, or may be,lused The principal object for which this pump was dev-l briliilding, by a small appliance of power, but

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