US1712346A - Regulator and safety device - Google Patents

Description

y 7, 1929- E. HOMESLEY ET AL 1,712,346

REGULATOR AND SAFETY DEVICE Filed March l1 1927 2 Sheets-Sheet 1 Z Z%' Z Edward h om as?? fab 0e)" INVE NTORB WITNESS: ATTORNEY y 7, 1929- I E. HOMESLEY El AL 1,712,346

REGULATdR AND SAFETY DEVICE Filed March 11, 1927 2 Sheets-Sheet 2 EWI WITNESS: ATTORNEY M INVENTORS atente lay 7, 1929.

UNITED STATES EDWARD HOMESLEY AND RALPH ROPER, F LEON, KANSAS.

REGULATOR nun SAFETY nnvicn.

Application filed March 11, 1927. Serial No. 174,679.

The general object of this invention is to provide means for preventing gas. from escaping through open burners and jets when the flame has been extinguished due to tema porary cessation of the flow of gas.

Another object of the invention is to provide means for regulating the flow through the main, such means being adjustable.

A stillfurther object of the invention is to to provide means for permitting the gas to escape from that part of the main which has been shut ofi from the supply part by the device.

This invention also consists in certain other to features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

Tn describing our invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which ure 3..

Figure 2 is a section on line 2-2 of Figure 1.

l igure 3 is a plan view.

t Figure 4: is a view similar to lhigure l but showing the parts in a difierent position.

Figure is a section on line 5-5 of Figure A.

lt igure 6 is a section on line ti-d of Figure 1.

Tn these views, 1 indicates a casing which is provided with the connection 2 for receiving a supply pipe which is connected to a gas main or the like and with a connection 3 which is connected to the delivery end of the main or pipe. A passage 4 is formed in the connection 2 for leading the gas from the supply main into the casing so that it can pass through the connection 3'into the delivery main.

The casing is provided with a cover 5 and a diaphragm 6 is held between the casing and cover so that it will be acted on by the gas entering the casing. The diaphragm includes the clamping plates 7 at the center thereof, to the upper one of which a rod 8 is pivoted, this rod, passing through a bushing 9 threaded in the nipple 10 formed at the top of the cover 5 and a spring 11 is placed on the rod between t the bushing and the washer l2 onthe lower end of the rod. Thus this spring will tend to Figure l is a section on line 1--l of Fig-- vided with perforations 15 for permitting air to enter the space in the cover above the d aphragm to permit free movement of the dlaphragm. The tension of the spring can be adjusted by the bushing 9, as will be understood.

A depending ear 16 is fastened. to the bottom plate 7 and a lever 17 is pivoted to this ear. The pivot pin 18 of the lever is arranged in the tubular parts 19 extending inwardly from the reduced end of the casing and between which the lever passes so that the pin is protected from the action of the gas. This construction is clearly shown in Figure 5.

The outer end of the lever is enlarged, as shown at 20, and engages a soclret member 21 which carries a valve 22 at its lower end and which is connected by a rod 23 with a valve 24 which is adapted to engage the valve seat 25 at the bottom of the passage 4L when the diaphragm is in lowered position, as shown in Figure l. The valve 22 is adapted to engage the valve seat 26 at the upper end of the passage A when the diaphragm is in raised position.

A plug 27 is threaded in the extension 28 at the top of the reduced end of the casing and which is in alignment with the connection 2.. This plug has a passage 29 therein for the escape of the gas to atmosphere from the casing. A valve 30 is adapted to engage a valve seat at the upper end of the passage to prevent this escape of the gas and this valve is held to its seat by a spring 31 carried by the valve rod 34 which extends through the passage 29 and has its lower end arranged to be engaged by the member 21 as the diaphragm moves downwardly to open the valve 30 as the valve 24b is being closed. A perforated cap 35 encloses the parts of the valve 30. The two valve rods are provided with the wings 36 to prevent rotary movement thereof.

From the foregoing it will be seen that gas can flow from the supply through the casing and into the delivery pipe by way of the connection 3, but if the gas supply should fail, the spring ll will depress the diaphragm and thus rock the lever l? to ltltl ill) raise the valve 24 against its seat and thus permanently cut off the flow of gas so that when the flow begins again, it cannot enter the casing. This will prevent the escape of gas through the open jets or burners, as will be understood. Before the flow can be continued, the diaphragm must be lifted so as to open the valve 24 and this'can be done by removing the cap 14 and pulling up the rod 8 by means of the pin 13. Then the pressurev of gas in the casing will hold the diaphragm raised with the valve open. It will also be seen that the movement of the diaphragm by the gas flowing through the device will cause the valve 22 to regulate the flow of gas into the casing so that this valve 22 acts as a regulator valve to give a uniform pressure of gas at the burners or jets. By opening the valve 30 when the valve 24 is-closed, the gas within the casing and in the line that connects the casing with the burners will exhaust into the atmosphere and thus not enter the buildin -It is thought Erom the foregoing description that the advantaes and novel features of our invention will e readily apparent.

We desire it to be understood that we may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within thescope of the appended claim.

. What we claim is A device of the class described comprising a casing having a diaphragm therein, means for placing the casing in a fluid pressure line so that the fluid will pass through the casing and act on the diaphragm therein, adj ustablc spring means for resisting the movement of the diaphragm by the pressure, said casing having an inlet port which has a valve seat at each end thereof, a rod passing through the port, a' valve at each end thereof for engaging the valve seats, a socket member connected with the valve at the inner end of the rod, a lever pivoted in the casing and having an end engaging the socket member, means for connecting the inner end of the lever to the diaphragm so that the diaphragm will move the lever, said casing having an exhaust port therein, a spring pressed valve normally closing the same and having the lower end of its stem engaging the top of the socket member for causing the valve to be moved with the socket member for moving the valve off its seat when the lever has been moved by the diaphragm due to lack of pressure in the casing.

In testimony whereof we afiix our signatures.

EDWARD HOMESLEY. RALPH ROPER.

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