US789971A - Stop-cock. - Google Patents

Description

' 1",. Patented May 16 3985.

UNITED STATES PATENT OFFICE;

GEORGEH. HARRINGTON, OF CINCIXXATL-OHIQ sro cocx.

srnc nca'non fanning part ofLetters latent No. 789,971, dated May 16, 1905.

T 0 all whom if may concern.-

Be it known that I. GEORGE l Hanmxc- TON, a citizen of the United States of America,

Application September a. 1904. Serial No. 223.682.

a smaller depth than the pitch of the screw of the valve-stern, which has in its lower end a diametrical recess into which run two channels 1: c the channels being placed so that when the val e C is seated the lower channel 0 registers w th notch 11 and chan- 5o nel 0 stands above packing-ring D in com- The objectof my invention is a stop-cock in which the waste-port is cut off from communication with the water-channel as the valve is raised from its seat by a simple and ellicient means. I

In the accompanying drawings, Figure 1 1s a central vertical sectional view of a stopmunication' with chamber 1), which sure rounds the valve-stein above the packingrlng and has leading from it a waste-port IL It is seen that when the valve is seated there is an open communication between the discharge-port a and the waste-port E 3 through channel 6, recess 0 channel c, and

cock embodying my invention. the valve and the valve-steni being shown in eievation.

Fig. 2 is acentral vertical sectional view taken upon 11118 a: .,c of Fig. 1, the valve and "valve-stem being shown in elevation Fig.

chamber b, but that as soon as the stem is D 0 valve C even shghtlv from its seat, that the channel 0 is carried past the notch if and is closed by the unn tched portion of the pack- 3 is a detail sectional view of the lower end of I the valv(. -ste1n and the valve. Fig. 4 is a horizontal sectional view upon line 31 y of Fig. 1, upon an enlarged scale. Fig. 5 is a detail vertical view, upon an enlarged scale, of the packing-ring- Referring to the part-s, valve-casing A has an inlet a and an outlet a, between which is valve is raised from its seat.

ing-ring and remains s0 closed while the closing of the channel c effectually cuts off the waste-port from the water-passage as l soon as the valve is raised, so as to prevent f any Spurting of the water through the master ort; but as soon as the valve is seated there 70 1s a ready communication between the dis a perforated diaphragm a upon which is formed the valve-seat 0 has an upward annular extension a. which is interiorly beveled at its upper end to seat the beveled flange of bonnet B, which is held upon the extension a .by screw-cap b, the upper. end of the bonnet being interiorly screw-threaded to fit the screw-threads of the valve-stein c. Sear its lower end bonnet B has an interior shoulder b, against which the packing-ring D is held by a screw-threaded ring (1.

Ring is made preferablyofpapier mach and has a. central perforation d of a size such as to fit snugly against the enlarged lower end 0' of the valve-stern. Upon its lower inner circumference ring D has a notch d of \"alve-casing A i charge-portof the valve and the waste-port to release the water remainin in the pipes 1 after the valve has been seate t What I claim is- In a stop-cock the comblnatlon of a valve, a valve-scat, a rotatingvalve-stem having an channel extending through it with an upper and a lower opening, a packing-ring fitting against the stem and havin a notch to reg- 8o P ister with the lower opening1 in the stem when the valve is seated,'a a Wasteport.

above the packing-ring and in'conununicw- V tion with the upper opening in the stem.-

- GEORGE H. HARRINGTON.

\Vitnesses:

Winner. C. GOODALE 1 H C'. J. E-vnrcn'r.

iven a slight rotation, so as to raise the This quick

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