US727195A - Gage-cock. - Google Patents

Description

PATENTED MAY 5,-190'3.

No.- 727,195. v

F. D.- PHILP.

GAGE COOK.

APPLIQATION FILED SEP'II. 12, 1902.

I0 HODEL.

WITNESSES {MVENTOR Attorney Patented lvlay'5, 1903.

FREDERICK PI-IILP, OF BUFFALO, NEW YORK.

eAGE-oocK.

SPECIFICATION forming part of Letters retentive. 727,195, dated May 5, 1903.

' Application filed September 12, 1902. Serial to. 123,148. (No model.)

To (all whom, it may concern: 1

Be it known that I, FREDERICK D. PHILP,

a resident of Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Gage-Cocks; and I do hereby declare the following to be'a full, clear, and exact description oftheinven tion, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improved gagecock for boilers, the object of the invention being to provide a'boiler gage-cock with two valves which work together, thereby forming two preventives against leakage, and both valve-seats are removable and can be duplicated at small cost, so that'sho'uld a valveor valve-seat become out a new seat or valve can be inserted, thereby saving the body or cas ing of the cock. Theinner valve is operated as often as the outer valve, so that it is al- I a View in elevation, illustrating my improvecasing near the center of the latter.

ments; Fig. 2 is a view in section of the same, and Figs. 3 and 4 are views of'details of construction.

1 represents a pipe forming the casing of my improved cock, contracted at one end and externally screw-threaded to screw into the boiler and made angular at its wider portion, as shown at 2, to receive a wrench and enable the casing to be screwed firmly in the boiler.

Into the extreme contracted end of casing l a perforated nut 3 is screwed and forms a bearing forthe stem 4 of a beveled valve 5, seated against a beveled opening in a ring 6, screwed into the contracted portion of the The valve 5 is located on the stem 4 between the ends of the latter, so that one end of the stem projects through the ring, and a coiled spring 7-is placed on stem 4 between the nut 3 and valve 5 to hold the latter on its seat.

The enlarged portion of casing 1 is provided with an internalannular flange or shoulder '8, against which a ring 9 is firmly ,heldbya plug 10, screwed into the outer end .of the casing, arid the-ring is beveled on its inner edge, forming a seat for a beveled valve 11, secured bya screw 11 onto the inner end of'a stem 12, having abearingin the plug and projecting outward beyond the same for a purpose which will herein'afterappear, or the valve may be secured onto the stem, if

preferred, and this plugis provided with an pending arm 17, forked at its lower end to engage valve-stem 12 between annular flanges 18 thereon, so that when saidlever-is drawn down the stem will b'forcedin'ward, as will be hereinafter explained; "I hearms 17 and 14 are provided on their-adjacent faces with pockets 19 to seat the ends of'a' coiled spring 20, normally holding thede'ver elevated and the stem 12 projected fto; itsjouter position, thus holding valve llon'its seat.

The operation of myimprovements is as follows: When it is desired'to try level of water in the boiler, lever 151s drawn downward, and the bifurcated or'forked arm 16, engaging stem 12 between fianges18 thereon, forces the stem 12 inward and moves valve 11 from its seat, and the screw 11 at the inner end of valve 11 engages the end of stem 4 and forces valve 5 from its seat, thus opening a passage to spout 13 to permit the boiler to blow off. When the downward pressure on lever 15 is removed,-the springs 7 and 20'will force the valves back upon their seats and make the cock steam-tight.

It will be seen that the valve 5 is held on its seat by the pressure of steam behind it, and any small fraction of steam or water which might escape past this valve will be ICO stopped by valve 11 and not escape, thus pro viding an absolutely tight cook, but which can be quickly opened when desired.

A great many slight changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence Ido not limit myself to a the precise construction set forth, but consider myself at liberty to make such slight.

and perforated nut, in combination with a valve and its actuating mechanism, substantially as set forth.

2. A gage-cock comprising two removable valve-seats located inside the casing, a perforated guide removably secured .to-the inner end of the casing, a valve provided with a stem one end of which extends through the valve-seat and its other through the perforated guide, a valve removably secured to a stem and means for actuating the latter and opening both valves, substantially as set forth.

3. A gage-cock com-prising a casing, a ring screwed therein forming a seat for a valve, a valve-on said seat, a stem for the valve having a bearing in the inner end of the casing and projecting through the ring, an internal shoulder in the casing near its outer end, a plug screwed into the outer end of the casing, a ring held against the shoulder by the plug and forming a valve-seat, a valve-stem projecting through the plug and having a valve against the.seat,s prings-to-ho1d the valves on their seats, and alever to move both of said valves from their seats.

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

FREDERICK D. PHILP.

Witnesses:

W. A. BRADLEY, ALBERT A. .MOYE.

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