US665181A - Valve. - Google Patents

Description

No. ss5,|s|. Patanted'lan. I, |9o|.'

u. CONFEB.

VALVE.

(Applipation filed May 5, 1900.)

(No Model.)

, 450:, Jrwmf 6079437? UNITE STATES PATENT OFFICE.

DAVID CONFER, OF CANISTEO, NEW YORK.

VALVE.

SPECIFICATION formingpart of Letters Patent No. 665,181, dated January 1, 1901.

Application filed May 5, 1900.

To all whom it may concern:

Be it known that I, DAVID CONFER, a citizen of the United States, residing at Oanisteo, in the county of Steuben and State of New York, have invented certain new and useful Improvements in Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to valves, and more particularly to valves for automatically cutting off the supply of gas to the burner when from any cause the pressure of gas is temporaril y or otherwise cut off or diminished.

It is a well-known fact that gas is often through accident or design temporarily out off and that very frequently the pressure for some unknown reason is lessened This causes the light to be extinguished, and upon the restoring of the gas-pressure to its normal conditions the gas will escape from the burner unconsumed into the room, which has very frequently caused death by asphyxiation and damage to property by contlagration due to explosion of the gas by bringing a light into the room into which it has escaped.

It is the object of the present invention to provide positive means for automatically cutting off the supply of gas to the burners should for any cause the pressure decrease to such an extent or the gas be temporarily out off in the supply-pipe as to cause the light at the burner to be extinguished, so that when the natural conditions have been restored gas will be entirely out off from the burner and will be prevented from escaping therefrom unconsumed.

With this object in view the invention consists in certain features of construction and combination of parts,which will be hereinafter set forth.

In the accompanying drawings, Figure 1 is a longitudinal vertical sectional view through my improved valve, and Fig. 2 is a transverse sectional view on the line y y of Fig. 1.

Referring to the drawings, 1 denotes the valve-casing; 2, the inlet end; 3, the outlet end; 4:, a removable cap screwed into the upper side of the casing, and 5 the valve-seat.

6 denotesa screw-plu g whichis screwed into the side of the casing and is provided with a Serial No. 15,655. (No model.)

valve-spindle 7, upon which is loosely mounted the hub 8 of a plate or arm 9, to which is attached the valve-plate 10. The spindle 7 is provided with a transverse pin or lug 11, which projects through a slot12 in the hub 8.

To elevate the valve-plate 10 from its seat 5, the screw-plug is rotated, which brings the pin 11 into engagement with one of the end walls of the slot 12 and swings the plate or arm 9 upward. j

13 denotes a diaphragm made of leather or other flexible gas-proof material. phragm is secured within the hollow cap 4 by any suitable means-such, for instance, as a spring-band letand is connected to a catch 15 by a pivoted rod or link 16. The lower end of the catch is beveled, as shown at 17, and is adapted to be engaged by the lower edge of the valve-plate 10 when the valve is swung upward to permit said valve to be engaged bythe shoulder or bill 18 of the catch, which holds the valve in its elevated position and allows the gas to pass through thevalvecasing. The catch is preferably pivoted between the forked end of a screw-plug 19.

2O denotes a vent-hole formed in the cap 4: and is for the purpose of breaking or preventing a vacuum when the'diaphragm sinks or collapses.

Assuming the parts to be in the position shown in dotted lines in Fig. 1, in which position the valve-plate is held elevated from its seat by the catch and the diaphragm is distended by the gas-pressure within the easing, should for any cause the gas be cut ofi or the pressure be diminished the diaphragm will sink or collapse, thus allowing the upper end of the pivoted catch, which is preferably considerably heavier than its lower end, to lower, thus withdrawing the catch from engagement with the valve-plate and permitting the latter to fall to its seat and prevent the flow of gas through the valve.- To open the valve, the screw-plug 6 is rotated, which will swing the valve-plate upwardly into engagement with the catch. The screw-plug is then rotated in the opposite direction back to its normal position, so as to permit the valveplate to automatically close the valve, as here- This diathe construction, operation, and advantages of my improved valve will be readily apparent without requiring an extended explanation.

It will be seen that the device is simple of construction, that said construction permits of its manufacture at small cost, and that it is exceedingly well adapted for the purpose for which it is designed.

Various changes in the form, proportion, and the minor details of construction maybe resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described my invention, what is claimed, and desired to be secured by Letters Patent, is

In a valve of the character described, the combination of the valve-casing, a screw-plug screwed into the side of the casing and provided with a valvespindle, a plate or arm having a hub provided with a slot, a valveplate 10 secured to the first-named plate, a diaphragm, a catch adapted to engage the valve-plate and hold it from its seat, and a connection between the diaphragm and the catch whereby upon the collapsing of the diaphragm the catch may be actuated to disengage the plate and permit it to close the valve, substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing" Witnesses.

DAVID CONFER.

Witnesses:

A. M. BURRELL, GARRET F. SPEER.

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