AUTOMATIC CUT-OFF FOR GAS BURNERS

COUPE-GAZ AUTOMATIQUE

Claims

Claim.lst. An automatic cut-off burner, consisting of an outer gas chamber provided with a tip, an expansible air chamber located therein and formed of two parts sealed with mercury, one of said Parts being provided with as flange and the other with a set of holes to constitute, with said flange, a valve which is opened and closed by the expansion and contraction of the air within the air chamber, substantially as described. 2nd. In an automatic cut-off burner, the combination with a gas burner, of a valve provided with an expansible air chamber and a supplemental jet In close proximity to the burner and air chamber, whereby the lighting of said supplemental jet will produce the initial expansion of air and start a flow of gas through the burner, substantially as described. 3rd. In as automatic cut-off burner, the oombination, with a gas burner, of a gas valve connected to the movable part of an expansible air-chamber , an escape valve located in the movable part of an expansible air chamber and having an operating arm extending to a point near the gas burner, Whereby it will be operated by an undue expansion of the air in said chamber by contact with the burner, as set forth. 4th. The combination, with the outer case a, the flanged and suspended air cell f containing mercury in its bottom and having gas holes o in its flange, and the rising and falling cylinder h having a close top and flange .valve overhanging, the gas. holes y and having its lower end sealed in the mercury, as shown and described. 5th. The combination of a cam a having an enlarged screw-threaded upper section e, the screw-threaded cap c whin the socket tip d, the flanged air cell, having perforated sustaining flange i, the rising and falling air cylinder It having flange valve at the top and the mercury seal at the bottom, substantially as shown and described. 6th. The combination, with the enclosing shell a, c, and the air cell f of the rising and falling air cylinder k having a gas valve attached thereto, and the valve I and valve Stem provided.with spring b and nut or holding bar m,as and for the purpose described. 7th. The combination, with case a, having an enlarged shoulder section c. of the sir cell f having flange i with gas holes o and the regulator or adjusting ring J having similar holes laid between the flange of the air cell and the shoulder of the case, and made axially adjustable to increase or diminish the flow of gas at will,substantially as described. 8th. The combination, with the gas burner having a pneumatic cut-off, of the tube n2 and conduit or gas pipe, the stem having valve r at one end and push button s at the other, and the coil spring surrounding said stem, substantially as and for the purpose described.