US444047A - Hydrant-valve - Google Patents

Description

(No Model.)

J. E. CALLAHAN.

HYDRANT VALVE.

N0. 444,047. Patented Jan. 6, 1891.-

WITNESSE I GC.

we Noqms Pneus cu., Pmmrmno.. msumnran, n. c.

UNITED STATES PATnNT muon.

JAMES EDVARD CALLAIIAN, OF PHILADELPHIA, PENNSYLVANIA.

HYD RANT-VALVE.

SPECIFICATION forming part of Letters Patent No. 444,047, dated January 6, 1891.

Application iiled June 18, 1890. Serial No. 355,898.

To all whom t may concern/.-

Be it known that I, JAMES EDWARD CALLA- I-IAN, a citizen of the United States, residing at- Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and usefullmprovements in Hydrant- 'Valves; and I do hereby declare the following to be a sufficiently full, clear, and exact description Athereof to enable others skilled in the art to make and use the said invention.

This invention relates to hydrants for drawing water in situations requiring protection from freezing in winter, and has for its object the easy removal and replacing without digging up the casing or shell of the hydrant when requiring repairs or inspection of the working parts.

To this end this invention consists in animproved form of valve and valve-body susceptible 0f being screwedinto and unscrewed from the supplying water-pipe and lifted out from the case, and in a construction of internal parts, hereinafter described, which facilitate access to the working parts and easy repair and renewal of the parts thereof.

This invention is shown in the accompanying drawings, in which- Figure 1 shows a vertical section of a hydrant embodying this improvement, and Fig. 2 an inverted plan thereof.

1 represents the water-sup ply pipe, to which the hydrant is attached, located in the bottom of the case 2 and having an outlet 3, internally screw-threaded, into which the lower end e of the valve-body is screwed by a corresponding male screw-thread.

Above the screw-threaded parte of the valvebody are four ears or spurs 5, adapted to engage the jaws 6 of a wrench 7 which is of such dimensions as to be easily introduced from the top of the case 2 and turned thereon. By means of this Wrench 7 the valve-body is easily detached and replaced.

Reaching above the prongs 5 is a tubular extension open at the bottom through the screw 4 and terminating at the top in a conical valve-seat 9, surrounded by a male screwthread 10, having below it a shoulder 11. The part 12 of the tube 8 is enlarged so as to afford space for water to flow around the lower end 14. of the plug 13. The plug 13 is made conical and fitted by turning and grinding (No model.)

into the valve-seat 9, being normally held shut in it by a spring 15, placed above the plug 13 in the sleeve 16, wherein it rests with the upper end pressing against the shoulder 17. The sleeve 16 is screwed at the lower end upon the screw 10, and in its upper part above the shoulder 17 is of smaller diameter, fitting' loosely around the stems 18, connecting an upper plug 19 with the plug 13, being screwed into a boss 2O formed with the lower ends of the stem 18. rlhe upper plug 19 is hollowed and has a tubular extension 21 externally of cylindric form, which fits loosely and is guided vertically in a sleeve 22, forming an extension of an upper valve-seat 23, into which the plug 19 iits. The upper valve-seat is secured by a female screw-thread 2i in its lower end, fitted upon a corresponding male thread 25, formed upon the upper end of the sleeve 16, holding the valve-seat in proper alignment with the sleeve 16 by forcing the lower end against the shoulder 26 of the sleeve 16. The upper end 27 of the tube 21 is screw-threaded and fits the draft or delivery tube 28 of the hydrant. The lower end 1-1 of the plug 13 is provided with a screw-thread and fitted with a nut 15, whereby a washer of yielding material may be applied when the ground surfaces of the plug 13 or valve-seat 9 become impaired and facilities for retting are not accessible.

From the construction of the parts as described it is obvious that each part being made and finished accurately true with its axis, correct alignment of the parts when assembled must ensue. By raising the tube 28 the plug 13 is lifted from the seat 9 and the plug 19 is drawn into the seat 23, so that the water flows inthe direction of the arrows through the hydrant. lVhen the tube 28 and the connected plugs 23 and 13 are allowed to descend, the plug 13 closes in the seat 9 and stops the water-supply, and the water in the tubes 28 and 21 descends and passes out between the plug 19 and valve-seat 23 through the tube 22, thus emptying of water the portions of the pipe exposed to cold above the ground.

l-Iaving described my invention and the operation thereof, what I claim is- 1. An improved. hydrant-valve consisting of a screw-threaded lower sleeve 8, provided with projections adapted to be removed by a wrench applied from above, and containing IOO vided with a Valve-seat am d guide fitted with the connected vulve 13 and 19, and the tube 21, to close downwardly in the valve-Seat f) the valve-sont 0, in combination with a middle section 16, screwed lhereto, und au upper seotiou 2:3, provided with a vulve-seat and 5 19,sp1iugl5,audtl1etube 21, coustruci'edaud arranged substantially as seb forth.

i?. Au improved hydrant-valve consisting of a lower sleeve 8, containing the valve-Seat 9, in combination with a middle seetiou 1G,

:o screwed thereto, and au upper Section pro- ;Lud arranged to operate substantially as set I5 forth.

JAMES EDWARD CALLAHAN. lVtuesses:

A. VAN WYCK BUDD, J. DANIEL EBY.

l guide fitted with the Connected vulves 13 nud l and u pwardly in the valve-seatQS, constructed

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