US84848A - Improvement in hydrants - Google Patents

Description

Cidade 9 were SOLOMON TICE, OF CINCINNATI, OHIO.

i Letters Patent No. 84,848, (lated December-8, 1868.

IMPROV'EMENT IN HYDRANTS.

To all whom 'it m'a/y concern Be it known that I, SOLOMON Tlcn,.of Cincinnati, Hamilton county, Ohio, have invented a new and useful Improvement in Hydrants; and do hereby declare the following to be a full, clear, and exact description thereof; reference being had to the accompanying drawings, making part of this specication.

This invention relates to that class of hydrants or fire-plugs in which the valve is maintained in its closed position by the pressure of water in thc main; and' My improvement consists in arranging the operating-parts in such a manner that said valve shall close very gradually when the hydrant is shut oif, thereby increasing the durability of theY apparatus, without adding to the cost of the same.

In the accompanying drawings- Figure l 'is an axial section of my improved hydrant, with the valve in its depressed or open position.

Figure 2 is a similar section, with the valve closed, and the waste-way opened.

A represents a cylinder,'that is open at both ends, and which is pierced, near its bottom, with a series of apertures, a, and saidcylinder is screwed into the upper end of a chamber, B, the latter having attached to it the customary inlet and discharge-pipes C D.

The lower end of the cylinder A-is provided with a collar, E, and a ange, F, the latter serving as the valve-seat, while the former acts to compress a packing, G, between it and the shoulder b of the cylinder, thereby forming a water-tight joint between said chamber and cylinder,

Projecting outwardly from the upper part of the cylinder A are two lugs, H H', which permit said cylinder to be unsere-.wed 4from the chamber B, by simply inserting a suitable key or wrench down the stock of the hydrant, and engaging it with said lugs..

The upper portion of cylinder A is also provided with a waste-way, I. p Situated centrally within the cylinder and chamber Ais a stem, K, having a lower screw-threaded portion, It, and an upper screw-threaded one, le', and also two collars, J J

'Secured between the upper collar J' and the connection L is a plunger, M, which consists of a number ofl disks, of leather or.other suitable material,V

which areadapted to t snugly within the cylinder A. One or more of the upper disks are somewhat increased in diameter,.as shown at an, so as to completely close the upper end of the cylinder A, when the plunger-is depressed and the valve'opened.

Secured between the lower collar J and the nut N is another series of leather disks, O, which constitute the valve proper, and this valve is somewhat larger than the plunger M, so as to permit of its traversing the chamber B.

Communication between the inlet-pipe C and the bottom of the chamber B, is effected by a small passage, P, which permits of the water ilowinginto and out of said chamber.

Itv is the rod, by which the stem K, and its accom- .panying plunger M, and valve O are elevated or depressed, and said rod may be operated by a cam, screw,A

-the hydrant-stock, in the following manner:

Projecting from the chamber B is a ilange, b', which is seated within a suitable recess in the base, S, and the sides of said recess lare .under-cut, as shown at s, and when lead or cement, T, is poured into said recess, the Tchamber becomes iirmly anchored in the base.

The operation of my hydrant is as follows:

When the hydrant is shut off, the valve O bears against the flange F, andv also closes the inner end of the pipe G, thereby effectually preventing the entrance of water into the cylinder A.

As the chamber B communicates with the inletpipe C, by means of the passage P, said chamber is slowly lilled with water, which, pressing'aga-inst the bottoni ofthe valve O, assists in maintaining it in its closed condition.

l.lo turn the water on, it is only necessary to depress the rod R, by which act' the stem K, plunger M, and valve O, are carried along with it, and as soon as said valve is released from its seat,and uncovers the end of the inlet-pipe O, the water flows into the lower open end of the cylinder A, thence out of the same, through the aperturea, and up the dischargepipe D, as indicated by the red arrows in iig. l.

In the act of depressing the valve O, the water beneath it'in the chamber B is forced out through the passage Pinto the inlet-pipe O.

When the hydrant is turned on, the water is prevented from escaping at the upper end of the cylinder A, by mea-ns of the tightly-fitting plunger M, and the disks m, the latter of which bear aga-inst the Yupper end of said cylinder.

In shutting off thehydrant, the stem K, plunger M, and valve O, are' elevated, so as to bring said valve in contact with its Vseat F, which elevation can only be effected very slowly on account of the passage P wire-drawing the water as it flows into the chamber B, to supply the vacuum caused by the ascension of said valve, and in opening 'the valve, the small passage P is againA useful by providing, an escape for the water below the plunger, so as to permit the latter to descend.

Vhen the hydrant is shut ofi', the waste-way I is opened, so as to permit the water contained in the discharge-pipe D to escape, and thereby prevent the apparatus freezing up in winter.

It will be seen that the water is shut off from my hydrant at two places, both at the inner end of then pipe C, and also at the seat F, thereby diminishing the chances of leakage; and as the valve O bears directly against said seat, and without any rotating or grinding-action, it will last for a long time. j

The operating-parts of the hydrant can be removed in a few minutes by inserting a wrench down the stock and engaging it -With the lugs H H', in such a manner that when said wrench is rotated, the cylinder A will be unserewedv from vthe chambei` B, after which said cylinder, together with stern K and its access# ories, can belifted out by elevating the rod R.

In the drawings, the inlet-pipe C is shown. as being connected to the chamberv B, about its mid-length, ani the passage I is represented as descending from said 'pipe O,- but it is evident that this arrangement may be changed so as to attach the inlet-pipenearer the bottom, and lead a branch-pipe up towards the valveseat.

I claim herein as new, and of my invention- The combination, substantially as described, of the open-ended and perforated cylinder A a, chanber B b, inlet-pipe C, discharge-pipe D, collar E, valve-seat F, packing G, stem K, plunger M m, valve 0, and contracted passage P, all substantially as described, and for the object explained.

In testimony of which invention, I hereunto set my hand.

. Witnesses:

' GEO. H. KNIGHT,

J Arms H. LAYMAN s'oLoMoN Trot. t

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