US381662A - Hydrant-valve - Google Patents

Description

(N0 Model.) 2 Sheets-Sheet l.

O. B. WILSON.

HYDRANT VALVE.

No. 381,662. Patented A111224, 1888.

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EYDRANT VALVE.

Patented Apr. 24, 1888.

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iran @rares OSCAR B. WILSON, OF OOLLNSVILLE, ILLTNOIS.

HYDRANTVALVE- SPECIFICATION forming part of Letters Patent No. 381,662, dated April 2%, 1888.

Application filed December 12, 1887. Serial No. 2.5?,57L (No model.)

To @ZZ whom it may concern:

Be it known that I, OSCAR B. VILSON, of Collinsville, Illinois, have made a new and nsefnl Improvement in Hydrant-Valves, of which the following is a full, clear, and exact description.

The improvement relates to that class of hydrantvalves in which the valve-seat and valve, together with any removable parts thereto attached, can, hy rotating the valvestem, be detached from the valve-ehamber and made capable of being lifted out therefrom.

The improvement consists in the combina tion ol'parts whereby the throw of the valve is determined and the removable parts of the construction kept in engagement with the valve-stem in all positions of the valve-stem, substantially as is hereinafter described and claimed,and as exhibited in theannexed drawings, making part of this specification, in which- Figure l is a sectional elevation of the improved valve; Fig. 2, a longitudinal section, the valve being nnseated; Fig. 3, a side elevation ofthe valve-stem, valve, valve-seat, and valveehamber cap; and Fig. 4, a sectional perspective of the valve-seat and valvechamber cap detached from each other. c

A represents the valve-chamber. The inlet thereto is at a.. The valve B seats with the pressure against the seat C, and when the valve is unseated, as in Fig. 2, the water flows through the openings d into the hollow valvesteni D, and thence upward to the top part of the hydrant (not shown) and there discharged in the customary manner.

The valve seat Chas a shoulder, c, is threaded at c to he screwed into the valveehamber cap E, and at its upper end, ci, adapted to press a packing-ring, F, into the upper end of the valve-chamher cap, and thereby form a stuft 'ingbox for the valvesteni to work through,

as indicated by its different. positions in the drawings. The valvechamher cap at e is threaded to he screwed into the valve-chamber and at e to form a ground joint therewith. It is also provided with the lug e?, which coacts in the manner presently described with the lng d' upon the valvestem. Now, as such valves have hitherto been made difficulty has been experienced in this respect: The valveseat does not have a fixed position in the valvechamber and it in consequence is liable to he screwed sometimes farther and sometimes not so far into the valve-chamber eap. -If it is screwed too far thereinto, the valve-stem when raised is liable to he moved so far upward as to cause a disengagement of the ings, respectively, upon the valvechamoer cap and valvestem, and hence when the stem is in that position it and the other removable parts cannot be detached from the valve-chamber by means ofthe valvestem. On the other hand, ii' the valve-seat is not screwed far enough into the valvelchamher cap, the valve-opening may he insufficient for the proper fionY or the water. This difiicnlty is prevented in the present eenstruction by providing the val ve-seat with the shoulder c or other equivalent stop and otherwise so proportioning the parts and so relatively constructing the lugs upon the cap and stem, respectively, as in the rst place to pro vide for always having the valve-seat in a cer tain position in the valve-chamber, so that both when the valve is originally sent out from the shop and also when it may be su eseqnen tl y repaired by one not familiar with its design the valve-stem and valve always will move and open to just the proper extent, and in the second place to keep theV lugs in engagement even when the valve is fully openedthat is, the shoulder c is arranged so that when it comes to a hearing against the valve-chamber cap the desired throw of the valve is obtained, and also in view of the fact that-a shoulder or stop for the valveseat is provided for a sufficient intimation to the person repairing the construction is given as to the proper position for the valve-seat, so that it shall always be replaced in the same position, and in connection with this fixed position of the valven seat the lugs e2 d are made, as shown, of such length as to prevent them from passing each other when the valvestem is rotated to nnscrew the valve-chamber cap even when the valve-seat is screwed to cause its shoulder to bear upward against the valve-chamber cap and the valvestem is raised te canse the valve to bear against the valve-seat.

A suitable easing, G, is used to inelose the valve-stem. The Water wastes when the valve is seated from the valve-stein through the lug d', said several parts being relatively arranged and proportioned substantially as and for the purpose described.

2. The combination, in a hydrant-valve, of the valve B, the valve-seat C, having the stop c, the valve-chamber, the valve-chamber cap zo E, having the lug e, and the hollow valvestem D, having the openings d at its lower end to admit the water and provided with the lug d, all said parts being relatively arranged and proportioned and combined together as and z5 for the purposes described. I

fitness my hand.

OSCAR B. WILSON.y

Vitn'esses:

C. D. MOODY, GEO. J. CHAPMAN.

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