US848684A - Double-seated valve. - Google Patents

Description

PATENTED APR. 2, 1907.

J; B. PURSER. I DOUBLE SEATED VALVE.

APPLIOATION. FILED MAR. 28, 1906.

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UNITED srAr s PATENT OEEIOE.

JAMEs EDWAE' PURSER, OE WINDSOR, ONTARIO, OANADA, AssIeNo TO JOHN MOREHEAD, OF DETROIT, MICHIGAN.

DOUBLE-SEATED VALVE.-

' .To all whom it may concern.-

Be it known that I, JAMES EDWARD PUnsER, a subject of the King of Great Britain, residing at WVindsor, county of Essex, Province of Ontario, Dominion of Canada, have invented a certain new and useful Improvement in a Double-Seated Valve, of which the following is a specification, reference being had to the accompanying drawings, which form a part of this specification.

My present invention is designed to provide a double-seated valve of novel construction and utility, the same being more particularly designed and adapted to be em ployed in connection with a separator embodied in an application prepared and executed by me of even date herewith, said valve being utilized to control the communication of two chambers the one with the other, the one being in the nature of a receiving-chamber'and the other in the nature of a discharge chamber, the discharge-chan1ber as embodied in said concurrent application being designed to communicate steam simultaneously to the top of the two tanks, the passage of the steam to both of the tanks being controlled by a single valve embodied herein.

To these ends my invention consists of the construction, combination, and arrangement of parts shown in the accompanying drawings and disclosed in the following description and claims.

Figure 1 of the drawings is a view in vertical section, showing parts in elevation. Fig. 2 is a similar view illustrating a modification of my invention.

In the drawings, a and I) represent two chambers, the one located above the other, one of 'said chambers being a receivingchamber and the other in the nature of a discharge-chamber, a diaphragm 0 being located therebetween, into which diaphragm is engaged a valve case or cage, (indicated at d.) Said case is provided toward its lower end with a diaphragm, (indicated at 8,) the diaphragm and adjacent portion of the case forming a valve-seat f, said case being provided, further, with an additional valveseat, (indicated at 9,) the case'being constructed to form a chamber it between the valve-seats. The diaphragm and wall of the case form an inlet-passage t' and an outletpassage in the form shown in Fig. 1 of the Specification of Letters Patent; Application filed March 28, 1906. Serial No. 308,570

Patented April 2, 1907.

drawings, a double-seated valve, having valve-heads (indicated at k and Z) seated upon the seats f and g, the valve being actuated in any suitable manner, as by, means of a lever m, fulcrumed, as at n, upon a yoke 10, said lever being engaged with a stem 9 of the valve. It will be obvious that steam, for example, admitted into the chamber a will pass through the channel i into the chamber h of. the valve-case, and when the valveheads are open the steam will also pass from the chamber h through the channel 3' into the chamber 6. Obviously my improved valve is an equalized valve, as the steam admitted into the chamber h will press equally against both of the valveheads.

While, as above observed, my improved valve is especially adapted to be used in connection with a separator embodied in my concurrent application above referred to, to govern the passage of steam from a receiving-chamber into a discharge-chamber and from the discharge-chamber into the top of two water tanks, as embodied in said ap lication, I would have it understood that do not limit myself solely to such use, as my invention contemplates any and every use to which it may be found applicable, and instead of controlling the passage of steam from a lower chamber into an upper chamber in the manner illustrated in Fig. 1 and as above described the passageas of water, for example'might be in an opposite direction and still be governed by essentially the same form of valve.

In the modification illustrated in Fig. 2 the diaphragm 6 extends in the direction opposite that shown in Fig. l, forming an inletchannel r, leading from the chamber 6 into the chamber h, and an outlet-passage 8, leading from the chamber h into the chamber a.

By such a construction the. steam or water, for example, in the chamber 1) may pass through the valve into the chamber a.

What I claim as my invention is- 1. In combination two chambers located the one above the other, the one being a receiving and the other a discharge-chamber, a valve case or cage provided with an interior diaphragm engaged with the walls of said chambers and forming with the wall of the case an inlet and an outlet channel communicable through the valve-case. and a doubleseated valve to control said communication, said case passing through the upper wall of the upper chamber.

2. in combination two chambers located the one above the other, the one a receiving and the other a discharge chamber and having a diaphragm therebetween, a valve case or cage engaged in said diaphragm and in the upper wall of the upper chamber, and forming an interior chamber within the case, said diaphragm forming within the case an inlet and an outlet passage communicable the one with the other through the interior chamber of the case, and a double-seated valve to control said communication.

3. In combination two chambers the one above the other, the one a receiving-chamher and the other a discharge-chamber, a valve case or cage projecting through the wall of the upper chamber forming an interior chamber communicable with the receiving and the discharge chambers, and provided with double valve-seats and a doubleseated valve seated upon said seats to con trol said communication, said valve provided with a stem projecting through the case, and means to actuate the valve.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JAMES EDYVARD PURSER. Witnesses N. S. WRIGHT, ETHEL M. SPIELBURG.

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