US2960304A - Valve for gas torches - Google Patents

Description

Nov. 15, 1960 H. c. GOSS 2,960,304

VALVE FOR GAS TORCHES Filed 001;. 3, 1958 INVENTOR. Herbert C.Goss

BY Wh United States Patent VALVE FOR GAS TORCHES Herbert C. Goss, Glenshaw, Pa., assignor to Gas Gas, Inc., Glenshaw, Pa., a corporation of Pennsylvania Filed Oct. 3, 1958, Ser. No. 765,168

2 Claims. (Cl. 251-276) My invention relates to valves that are particularly suitable for use with blow torches and the like.

One object of the invention is to provide a structure wherein the flow of gas may be controlled more safely than in the case of various prior devices of this character.

More specifically stated, my object is to provide a valve wherein the valve may be operated in such manner as to permit passage of only suflicient gas to a burner tip to serve as a pilot flame and whereby the valve can be opened more fully to admit the flow of a working supply of gas to a burner tip.

As shown in the accompanying drawing:

Figure 1 is a side view of the valve.

Fig. 2 is an exploded view of the various valve parts.

Fig. 3 is a vertical sectional view of the valve on an enlarged scale, with the valve open for only a restricted flow of gas.

Fig. 4 is a view showing the valve fully open.

Fig. 5 is a view taken on the line VV of Fig. 3.

The valve controls flow of gas from a supply pipe 6 to a discharge conduit 7 that is connected to a suitable burner. The line 6 extends through a handle 8 and discharges into a valve body 9 that has an inlet port 10 and an outlet port 11.

A valve seat 12 is provided with a port that aifords communication between the ports 10 and 11. The flow of gas being controlled by a valve 13 that is urged toward closed position by a spring 1 4 which seats upon a bottom cap 15 for the valve body. The valve 13 is actuated by a knurled thumbpiece 16 which serves also as a push button. The member '16 tightly fitted to a shank 17 that is centrally bored to receive the stem 18 of the valve 13. A valve bonnet 19 is threaded into the upper end of the valve body 9 and has a packing gland or nut 20 that compresses packing ring 21.

A threaded collar 22 is non-rotatably supported in the valve bonnet 19 but is vertically slideable therein when the button 16 is depressed against the spring 14 to move the valve from the slightly open position of Fig. 3 to the fully operative position of Fig. 4.

When the operator wishes to initiate a flame cutting operation, he will turn the button 16 to efiect movement of its shank 17 downwardly, by reason of its threaded connection with the collar 22. Such rotative movement of the button permits a small amount of gas to flow, and thus provides for a pilot flame which will not be so dangerous to the operator as if he attempted to light a full flow of gas at the tip. When the pilot flame has 2,960,304 Patented Nov. 15, 1960 been lit, the operator will depress his thumb against the button 16, moving it from the position shown in Fig. 3 to that shown in Fig. 4, the collar 22 being free to slide downwardly during this movement. Bosses 12a serve as stops to limit downward movement of the valve operating member 17 to thereby prevent cutting off of gas flow when said member is depressed.

The convenience and safety of my valve structure arises out of the fact that the operator, while grasping the handle 8, can use his thumb in engagement with the knurled edge of the button 16, rotating it slightly to gradually open the valve, through downward movement of the shank 17 in the collar 22. He thereby avoids danger of too quick initial opening of the valve preliminary to lighting a pilot flame at the burner. Of course, thereafter, he will shift his thumb to the top of the button 16 and press it downwardly to the desired distance.

I claim as my invention:

1. Valve apparatus for controlling flow of fluids, that comprises a valve body, a handle rigidly connected at one end to the valve body and being in the form of a grip member for grasping by the hand of the operator, the valve body having an inlet port through which fluid will enter, and having an outlet port, a valve seat disposed between the inlet and outlet ports and having a valve port therethrough that provides communication between the inlet and outlet ports, a valve between the inlet port and the valve seat and movable to open and close the valve port, a spring yiel'dably holding the valve against the side of the seat which is adjacent to the inlet port, and in closed relation to the valve port, a valve stem carried by the valve and extending in a direction at right angles to the axis of said handle, a valve-operating member coaxial with the stem and extending inwardly from a point exteriorly of the valve body and rotatable on the valve stem and also movable axially inward to move the valve to open position against the spring, the said member being also axially shiftable in the valve body through threaded engagement thereof with a nut that is non-rotatably mounted in the valve body and is movable axially with the operating member, means carried by the valve body for limiting the extent of axial movement of said nut, the said spring urging the valve, its stem and the valve-operating member outwardly, and a thumb-operative disc on the outer end of the valveoperating member, in position to be rotated by the thumb of an operator who holds the handle, to effect slow opening of the valve through turning of said threaded connection, the disc when pressed inwardly by the operators thumb, serving to depress the valve against the spring, for quick opening movement.

2. Valve apparatus as recited in claim 1, wherein the handle is tubular co-axial with the inlet and outlet ports and serves as a conduit for flow of gas into theinlet port.

References Cited in the file of this patent UNITED STATES PATENTS 815,179 Knoderer Mar. 13, 1906 1,544,219 Collar June 30, 1925 2,013,822 Bradbury Sept. 10, 1935 2,388,327 Jacobsson et al. Nov. 6, 1945 2,605,077 Hay July 29, 11952

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