US239436A - Albert g - Google Patents

Description

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UNTTED STATES PATENT Ormea.

ALBERT G. BRUST AND WILLIAM H. DOUGLAS, OF WASHINGTON, D. O.

DOUBLE-ACTING PUMP.

SPECIFICATION forming part of Letters Patent No. 239,436, dated March 29, 1881. Application led September 4, 1880. (No model.)

To all whom it may concern Be it known that we, ALBERT G; BRUST and WILLIAM H. DOUGLAS, of Washington, in the county' of Washington and District of Columbia, have invented anew and valuable Improvement in Double-Acting Pumps; and we do hereby declare that the following is a full, clear, and exact description of the construction and operation ofthe saine, reference being 1o had to the annexed drawings, making a part of this specification, and to the letters and tigures of reference marked thereon.

Figure l ofthe drawings is a representation of a longitudinal section ot' this invention. Fig.

2 is a cross-section of the same. Fig. 3 is a detail view, in section, of the valved projection.

This invention has relation to pumps for use in connection with water-supply pipes; and it consists in the construction and novel arrangezo ment, in connection with the piping, `of an intermediate section having a recessed projec-` tion on Vone side formedwith two independent valve-chambers, respectively, for the supply and discharge, the outer and inner valves con- 2 5 nected therewith, the vibratory cylinder having a sector-piston attached to its inside surface and working on the side ot' the cylindersection opposite to its recessed projection, the packings, glands, and the.lever handle attached to the vibratory cylinder, all as hereinafter shown and described.

In the accompanying drawings, the letterA designates any ordinary water-supply pipe from which a portion has been removed, which 3 5 is replaced bythe recessed and valvedsection B,'with reference to which the portion ct of the main pipe becomes the supply, and b the discharge, the intermediate section, B, being connected thereto by means ot' threaded unions or 4o other'Water-tightcouplings. Theintermediate section, B, is cylindrical in form, having at its "middle portion a projection, O, on one side, .which is made with a supply-chamber, D, and a discharge-chamber, E, which are independenttot' each other, being separated by a wall,

c, in\the section. The exterior surfaces of the cylindrical ends of the section form gland and axis bearings f, as hereinafter described. The outer surface, d, of the projection C is coil- 5o cave usually, as shown in the drawings, and is covered with a packing, e, and packings c are secured to the ends of the projection. The side on the discharge side having the valvel internal. For the latter, in small pumps, a ballvalve may be conveniently used, acting in common for the opposite openings, h.r

F represents the working or vibratory cylinder, the interior surface of which is concentric with the valved section B. This cylinder is provided with ends or heads, or with one end, m, and one head, n, each having a boxprojection, p, threaded to engage with a cap, q, and forming the sleeve-box of the glandbearing c, upon or with which the cylinder F turns, when operated by means of an external lever-handle, G, secured thereto. Packings z are applied within the gland.

To the interior wall ot' the cylinder D is secured a sector-piston, H, which is formed with a concave inner surface, s, upon which is secured a packing, t, working upon the cylindrical bearing-surface, not' lthe valved section, which is opposite the valved projection O, as shown in the drawings.

The cylinder Fturus easily on its axis-bearings at the ends of the valve-section. Being vibrated by means of its handle, it is apparent that the inwardly-projecting piston H is alternately brought nearer each side of the valved projection G than it is to the other, so that its water-chambers I and K become each alternately greater or less than the other. As these chambers each communicate with both the supply and discharge chambers of the valved section B on one side thereof, it is apparent that the valves of each section are put in action at each movement of the cylinder, so that as the water-chamber I contracts the water therein closes the supply-valve k of one side, and the water therein is driven through the opening hofthesame side into the discharge-chamberll, closing its opposite valve-opening h and flowing out through the discharge-pipe fv. At the same time the water-chamberK of the cylinder F enlarges, drawing the water in through the opposite supply-opening g, raising its valve k.

This pump is very readily attached to water- IDO pipes in house's and yards and operates with great effect, While but little power is needed to Work it. Being double-acting, the pump produces a continuous discharge.

For large constructions it is designed to form a longitudinal slot in the piston H, and introduce packing, and a T-formed gland, which is adjustable upon threaded posts, nuts being applied on these posts and bearing on the back of the gland.

Having described this invention, what we claim, and desire to secure by Letters Patent, 1s-

The double-acting pumping attachment for supply-pipes, consistingof the valve-section B, having the side projection, C, formed with the independent supply-chamber D and dischargel chamber E, their respective opposite openings

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