US535910A

US535910A - Fire-hydrant

Info

Publication number: US535910A
Authority: US
Publication date: 1895-03-19
Anticipated expiration: 1912-03-19

Description

-' (No Model.)

J. C. KUPFERLE. FIRE AHYDRANEI?.

Nb. 535,910. Patented Mar. 19, 1895.

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Unirse4 STA-rss PATENT OFFICE.

JOHN O. KUPFERLE, OF ST. LOUIS, MISSOURI.

FIRE-HYDRANT.

SPECIFICATION forming part of Letters Patent No. 535,910, dated March 19, 1895.

` Application iled August 2,1894. Serial No. 519,230 (N0 model-l To aZ-Z whom z5 may concern.y

ful Improvement in Fire-IIydrants, of which the following is a full, clear, and exact descrlption.

The improvement relates to the waste of the hydrant; and it consists in the means hereinafter set out and claimed, reference being had to the annexed drawings, making part of this specification, and in which- Fignre l is in part a vertical cross section of the body of a hydrant containing my improvement, and in part, a view in perspective of those parts with which my improvement is most directly connected, the view being upon a reduced scale and the main valve being shown seated and the waste open. Fig. 2 is a vertical section on alarger scale of the lower end or foot of a hydrant,- being the portion with which my improvement is immediately connected. In this view also, the valve is shown seated and the waste open. Fig. 3 is a similar View, except that the main valve and parts thereto attached are shown in perspective, and that the main valveis unseated and the waste closed, and Fig. 4 is a vertical cross section of an improved rubber packing used by me, and through which `,the extension of the stem of the main Valve is intended to pass.

The same letters of reference denote the same parts throughout the several views.

The valve A, seats at a, against the pressure, the water entering through the inlet B into the chamber.O in the lower end or foot D of the hydrant, and thence, when the valve A is unseated, passing upward past the valve :into the upper part ofthe hydrant, D', whence it is discharged in the ordinary manner.

As the improvement does not depend for its operation, upon any special construction at the upper end of the hydrant, that part need not be specially described.-

The main valve stein E extends downward below the valve A. Its extension is hollow (Fig. 2). Itis perforated both above the main valve and near the lower end of its extension e. The perforations above the valve are lettered e and those below it e2. The extension passes through a central perforation f in a packing F, preferably cone shaped as shown in Fig. 4 and provided with a thin lip f', at its upper end and the [iange f2 at its lower end; I prefer to form this packing of rubber. Soft rubber answers the purpose best. The packing F is contained `within the tubular plug G. It preferably rests upon an annular rib g, preferably held in place by means of a sleeve G screwed into the top of the plug G and bearing upon the flange f2 of said packing.

In the form of my improvement shown in the drawings there is a chamber g2 `ibelow the rib g, and passages o3 g3,are provided for the escape of water therefrom to without the hydrant. The plug G and the sleeve G" are both preferably perforated so as to permit of a free circulation of water around the packing F, and allow any sediment which might otherwise accumulate around the packing, to escape, lThe perforations in the plug G are lettered g4, and those in the sleeve G are lettered g5.

When the main valve A is seated, the portion of the stem containing the perforations e2, extends below the packing F, as appears in Fig. 2. When the parts are in that position there is a free passage for any waste water-left in the upper part (D) of the hydrant, through the perforations e', and the stem extension e, the perforations e2, the chamber g2 and the passages g3 to without the hydrant. When on the other' hand, the main valve A is lifted olf its seat, as shown in Fig. 3, the portion of the valve stem (e) containing the perforations e2, is sufficiently elcvated to bring said'perforations within the packing F. As soon as this takes place they are closed by the packing and the escape of water through them prevented. Thus the waste is always open when the valve is closed, f

and is closed by the opening of the main valve.

The packing F devised by me is very eftlcient in making a water tight joint by reason of its elasticity and its form. The pressure of water upon its sides and especially upon its lipfassists inkeeping it tight.

` In case the valve A, or its stem E, needs repairing the top of the hydrant may be taken o and the valve lifted out by its stem. In such cases the packingF is left in place. The lower end e3, of the stem extension e is pref- ICO crably conical or pointed so as to permit of its easy insertion into lthe centralperforation fof the packing F, and when the main valve and its stem have lbeen taken out of the hydrant, the stem extension e can be inserted in its packing Without difculty when the valve is replaced.

It is believed that the special form of packing (F) which I have described will last as long` as a hydrant. In case it should become desirable to remove such a packing however vthe sleeve G, may be unscrewed and the packinglifted outl Without difficulty and a new one inserted.

Hydrants embodying my invention are cheap, efficient, simple and very durable.

The perforations e', e2, g4, and g5 are respectively preferably two or more in number but a single one of each may be used.

I claim-- 1. The combination of the/tubular plug G having one or more perforations g4, the perforated elastic packing F, having Vthe ange f2 restingl upon a support formed in ysaid plug G, and a sleeve G having one or more perforations g5, substantially as described.

2. The combination of the tubular plug G havingone or more perforations g4, the soft rubber, cone shaped packing F, having a lip f and a langefz, a support for said packing and a sleeve GI having one or more perforations substantially as described.

3. The combination in a hydrant, of the valve A having the seat a., the hollow stem eX- tension e, Whose interior is connected with the space above the valve seat by a passage e; the tubular plug G containing one or more lateral perforations g5, and a support for a packing; a rubber packing F, having the central perforationf and-the lip f', the sleeve G having one or more perforations g5, and one or more lateral openings e2 in said valve stem extension, open when said valve is seated and closed when it is unseated, substantially as described.

Witness my hand this 31st day of July, 1894. i

JOHN U. KU'PFERLE.

Witnesses:

A. BONVILLE, B. F. REX.