US204822A

US204822A - Improvement in water-plugs or hydrants

Info

Publication number: US204822A
Authority: US
Publication date: 1878-06-11
Anticipated expiration: 1895-06-11

Description

M. HOGAN. Water-Plug 0'1 Hydrant.

No. 204,822. Patented June H, 1878..

aLl/1 N.FEIERS, PNOTOL|THOGRAPHER. WASHINGTON. D. C.

f of the lever h, which .is located in the waterf as an equivalent `for thelever h and rod i,

UNITED STATES PATENT OEEIGE.

MATTHEW HOGAN, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN WATER-PLUGS OR HYDRANTS.

Specitication forming part of Letters Patent No. 204,822, dated June 11, 1878 5 application tiled March 7, 1878.

To all 'whom it may concern: Y

Beit known that I, MATTHEW HOGAN, of Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements pertaining to a Water- Plu g or Hydrant, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure- 1 is a view inI central vertical section. Fig. 2 is a view in cross-section on the plane denoted by the dotted line fr.

The letter a. denotes a stand-pipe, from the top or side of which the water is delivered. lb denotes a shorter stand-pipe, in which the valve is located. c denotes a Water-way leading from beneath 'the valve, and connecting` the two stand-pipes. d denotes a water-way through which the water iinds laccess to the valve.

I will rst describe the valve.

The letter e denotes the valve seat, whichrises like a pipe end from the bottom of the stand-pipeb, or from a diaphragm therein. The letter f denotes the body or casing ofthe valve, shutting down over the valve-seat, so as to partially and gently shut oft' thewater in closing, before the packing g, which isl within the body f, comes squarely down on the valve-seat, and thus prevent that knocking which results when a flowing current of water is shut oft' by a sudden impulse.

This valve is operated through the agency way c, and the rod fi, which passes out at the upper end-0t` the stand-pipe a, its necessary longitudinal motion being given by having the rod/'' screw-threaded and taking intoi a female thread; or a lever or other customary means of giving longitudinal movement may be utilized for the purpose.

So far as the combination of the two standpipes, the connecting water-way, the valve, and the means for operating the valve through the stand-pipe a. and the water-way c is concerned, I suggest 'as a modification, and

that a lateral arm may be fixed rigidly to the lower end of the rod i, and take the place of, the lever h.

I will now describe a means for emptying the stand-pipe a and water-way c of water after the valve is closed.

On theA bottom 'of the water-way c is lliked. a lever-valve, j, which, through Weight or gravity, remains closed when the main valve vis open. When the main valve is closed, the

end of lever h comes down and strikes valve j in such fashion as to open it.

I will now describe my meansy for getting at the main valve.

On the top of the shorter stand-pipe b practically a part of :itl-is lixed the removable cap-pipe 7c, intended to reach, when this apparatus is used for hydrant purposes, to the surface of the ground. It has a removable cap, l. On the shoulder on rests the disk u, shutting olf water from above it. It is held to place by the adjusting-screw o, which may reach downto disk n; or7 more conveniently, the short pillarp and its radial support r may be interposed.

l will now describe a gate for shutting 0E the water from this hydrant, so that it can be repaired, or the like. i

The letter s'I denotes the casing of the water-gate; t, the valve or gate proper, and t the valve-stem. of the gate-casing screws the disk u, with the valvestem passing through it, bearing the packing-box uf, with packing beneath it.

The valve-stem is provided with the conduit o. When the valve is closed, as shown in the drawing, back-water escapes through this conduit tothe chamber 'w above the disk u, from which it nds escape to the outside of the casing through the escape-orifice y,

This hydrant being nothing more thana large water-cock, its principles of construction are applicable to smaller cocks.

I claim as my inventionl. In combination, water-Way d, valve f,

water-way c, lever h, and rod a', .all substan- .tially as described.

2. In combination, standpipe b, removable cap-pipe lr, removable cap l, disk (mand screw o.

3.1In combination, casing sf, valve't upon v stem t provided with conduit e, the disk a, chamber w, and escape-orifice y.'

In witness whereof` I hereto `set my hand.

MATTHEW-HOGAN. Witnesses:

` RoBT. F. GAYLORD, WM. E. .SIMoNns Into the upright partl sf