US496653A - Henry f - Google Patents

Description

(No Model.)

- H. P. HERBERT.

PUMP. No. 496,653. Patented May 2, 1893.

nb IIJQSSES THE NQRRIG PETERS C0., PHOYD-THO., WASHINGTON, D. CA

i'UNITED STATES 'PATENT OFFICE.

HENRY F. HERBERT, OF ROCK POINT, PENNSYLVANIA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 496,653, dated May 2, 1893.

Application led September 17, 1891. Serial No. 405,997. (No model.)

To all whom it may concern; Y Be it known that I, HENRY F. HERBERT, a citizen of the United States, residing at Rock Point, in the county of Beaver and State of Pennsylvania, have invented a new and useful Pump, of which the following is a speciiication. l

This invention relates to improvements in mining, steam and water pumps; and to that particular class thereof known as double-acting, and embodying but one pump-cylinder.

The objects of the invention are to provide apump'of this class of cheap and simple construction, the parts of which may be readily detached for the purpose of cleaning, and are accessible, the check-valves at the ends of the cylinder being located adjacent to couplings and out of the body of the cylinder whereby when the packing-box and plunger are removed the cylinder is open from end to end.

With the above objects in view the invention consists in certain features of construction that will be hereinafter set forth and particularly pointed out in the claim.

Referring to the drawingsz-Figure 1 is a vertical longitudinal section of a pump constructed in accordance with my invention. Fig. 2 is an enlarged detail of one of the valves employed atthe inlet openings. Fig. 3 is a similar view of a portion of a pump-rod and valved headfor operating at opposite sides of the discharge.

Like numerals of reference indicate like parts in all the figures of the drawings.

1 designates the vertically located pumpcylinder, which is provided at its center with a discharge 2, from which extends an ordinary elbow adapted to be connected with the horizontal discharge-pipe. The upper end of the cylinder has threaded therein a stuffing-box 8, through which descends the reciprocal pl-unger or pump-rod 4.' At opposite sides of the discharge 2 and equidistant therefrom suitably-packed plunger-heads 5 are secured to the rod, said heads being provided with a series of ports 6, extending through the same. Below the upper head and above the lower head there are mounted at these points valves 7, the same being designed to reciprocate upon the rod between their respective heads and collars 8 formed on the rods immediately below and above the heads, and serving as stops parts of the valves takes place iiaii ascenth of the plunger.

The pump cylinder is tubular and may be formed of a straight section of pipe, provided at one end (its upper end) witha female screw to engage the stuiiing-box, and provided at the opposite or lower end with a male screw to engage the interior thread of a coupling 1% The cylinder is provided near its upper end with a side opening 1J, and secured to the cylinder and communicating with this opening is an elbow 11 in which is fitted a check-valve 19 comprising a perforated body-portion 12, a stem`l3, and a slidable disk 14 to close the perforations. Removably tted in the coupling 1' is acheck-valve 21, comprising the perforated body-portion 8X, the stem 9,' and the slidable disk 10. j

16 represents a tubular supply-chamber, which is fitted at its upper end in the coupling 20, by which it is connected to the free y end of the elbow 11, and provided at its lower end with a semicircular integral elbow 18 whose free terminal is threaded into the lower end of the coupling 1a. The supply pipe 17 is connected to the supply chamber at an intermediate point.

From the above description it will be obvious that when the stuffing-box and the plunger are removed the entire'cylinder will be freefrom obstruction,withoutremoving either check-valve. Furthermore, eithercheck-valve 9e may be removed from thepump for repair or other purpose by loosening one of the couplings 1u -or 20. Furthermore, inthe construction described, the minimum number of joints or couplings is employed and unnecessary angles are avoided as offering obstructions to the free passage of the fluid and for the accumulation of dirt, sediment, dac.

In pumps Ywhich are employed in the operation of draining mines, &:c., it is desirable to avoid complications, such as joints, and to provide means whereby the cylinder may be opened for cleaning, and whereby the valves may be readily reached, and it is believed ICO.

that these desiderata have been attained in the above-described device.

The operation of the improved pump will be understood Without a detailed description thereof.

Having described my invention, what I claim 4is In a pump of the class described, the combination of a cylinder,1,constructed of a single straight pipe having open ends, an intermediate lateral discharge pipe, 2, a cap and stuffing-box, 3, threaded into the upper end of the cylinder, a tubular supply cylinder, 16, arranged parallel with and adjacent to the cylinder, 1, and provided at its lower end with an integral rounded or semicircular elbow, 18,

whose free end is aligned axially with the cylinder, 1, a right-angle or quarter-circular elbow, 11, connected at one end to the cylinder,

1, and aligned at the other end with the supplyicylinder, a coupling, 20, engaging the eX- teriorly threaded adjacent terminals of the supply-cylinder and the elbow, 11, a checkvalve arranged in the elbow, 11, a supply-pipe communicating with the supply-cylinder, a coupling, 1, threaded upon the adjacent ends of the cylinder, 1, and elbow, 18, a check-valve arranged in the coupling, la, and a double plunger having its rod mounted in said stuifing-box, substantially as specified.

In testimony that I claim the foregoing as my own I `have hereto affixed my signature in the presence of two witnesses.

y HENRY F. HERBERT.

Witnesses:

S. E. MARTIN,

B. A. LEHMANN.

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