US757731A - Faucet-valve. - Google Patents

Description

No. 757,731. PATBNTED APR. 19.1904. F. F. FIELD.

PAUGBT VALVE.

APPLIOATION FILED APB. 5. 1901.

N0 MODEL.

DRA/'2: Ys:

UNITED grapes Patented April 19, 1904.

FREDERICK F. VFIELD, .or rnovIDnNcE, RHODE ISLAND.

SPECIFICATION forming part of Letters Patent No. 757,731, dated April 19, 1904.

Application ned April 5, 1901'l applicable to faucets for drawing water under high pressure.

The object of the invention is tol secure the slow closing of the valve to prevent injury to the valve and valve-seat. l

The invention consists in the peculiar and novel construction comprising a dash -pot whereby the closing of the valve is controlled, as will be more fully set forth hereinafter.

Figure 1 is a vertical sectional view of a faucet containing my invention. Fig. 2 is a sectional view of arnodied form of the dashpot and valve-stern. Fig. 3 is a side view of the cupped sleeve supporting the valve-stem.

In the drawings the valve and valve-stem are shown in the vertical position as used on Washstands; but they may be and are frequently placed in the horizontal position. In i-llustrating my inventionIhave shown a valve sliding in a perforated sleeve to protect the valve against the blow of the Water-hammer; but I do not Wish to confine myself to this construction.

In the drawings, c indicates the inlet portion of the faucet connecting with the Watersupply; af, the valve-seat; a2, a case usually made of spheroidical shape; o3, the dischargeduct, and n? the valve-stem branch.

In the preferred construction, as shown' in Fig. l, the inlet portion t is formed of a cylinder or tube having a screw-thread for connecting the same with the supply-pipe at one end and on the other a screw-thread for connecting the inlet portion with a screw-threaded boss on the elbow portion. By this construction the parts connected with the valve may be inserted and adjusted to the case or spheroidical portion a2, and then the connection with the inlet-chamber may be made.

The valve Y) in the simplest form may be Serial No. 54,525'. No model.)

.l connected `vviththe valve-,stem Z1', which is provided Witha shoulder having an annular recess forming the cup b2, from thecenter of which extends the stein having on its outer end ,the operating-button 64. 'Ifhe stem b3 extends through and .may slide-longitudinally in the sleeve b5,- secured inthe branch and having the inverted cup b, The inverted cup tits into the cup Z22 with a loose sliding lit in the preferred form shown in Fig. l andv in the modiedform shown in Fig. 2. The inverted cup 56 fits over the collar 67 on the valve-stem with aloose sliding fit. YBy loose sliding fit I mean such a fit as will permit water to enter the cup when the valve is open and water is lowing through the faucet and will suiliciently retard the outflow of the water to prevent the valve from scatingitself with a blow.

In any form of valve for self-closing faucets it is essential that the valve be seated gradually to prevent the destruction of the valve or valve-seat, and when used under the high pressure used in ,most cities a yielding resistance to the closing of the valve is essential.

As shown in Fig. l, water will enter the cup 62, also rising in the cup be, but not suiiicient to fill the same, thereby leaving an air-space above the water. When now the valve is returned to its seat or closed by the waterpressure, the valve will be cushioned against the water-hammer by reason of the water contained in the cup 62 acting to compress the air contained in the upper part of the cup L6.

I wish to be understood as not claiming herein the subject-matter of the valve ZI and its cylindrical casing with the spirally-arranged ports, as such matter is claimed in my copending application for United States Patent, filed on even date herewith, Serial No. 54,524.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination of an inlet-pipe; an out- IOO it and to be returned by the valve as it closes under pressure of the iiuid in the inlet-pipe, the said valve being provided with telescoping oppositely-arranged recessed members constituting a telescoping cushioning device, substantially as and for the purpose set forth.

2. The combination vof an inlet-pipe, an outlet-pipe and a chamber connecting the two said pipes, a Valve located within the inlet-pipe and controlling the communication of the same with said chamber, a reciprocating valve-operating stem mounted Within said chamber and adapted to push upon the valve to open it and to be returned by the Valve as it closes under pressure of the liquid in the inlet-pipe, the said valve-stem comprising a rod and a fixed tubular bearing through which the rod slides, the said bearing projecting into the chamber and being recessed at its inner end to form a liquid-cushioning pocket, a cupshaped body adapted to receive the liquid in the recess thereof and fixed upon said rod within the chamber and projecting outwardly and inclosing the inner end of said bearing and forming a loose fit therewith and telescoping with said bearing to form a cushion- -ing device, substantially as and for the purpose set forth.

3. The combination of an inlet-pipe, an outlet-pipe and a chamber connecting the two said pipes, a valve located within the inlet-pipe and controlling the communication of the same with said chamber, a reciprocating valve-operating stem b3, mounted Within said chamber and adapted to push upon the valve to open it and to be returned by the valve as it closes under pressure of the liquid in the inlet-pipe, the said valve-stem comprising a rod, and a fixed tubular bearing b5 through which the rod slides, the said bearing projecting into thechamber and being recessed at its inner end to form a liquid-cushioning pocket 56, a cup-shaped body b2 fixed upon said rod Within the chamber and projecting outwardly and inclosing the inner end of said bearing and forming a loose fit therewith and telescoping with said bearing whereby a telescoping cushioning device is formed, substantially as and for the purpose set forth.

In testimonywhereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK F. FIELD.

Witnesses:

J. A. MILLER, Jr., A. E. HAGERTY.

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