Patent GB-191112367-A (GB)
Title: Improvements in or relating to Liquid Hydrocarbon Vapour Burners or the like.
Inventor: BLANCHARD ARTHUR ISAAC
IPC: F23D11/44
Filed: 1911-05-22
Granted: 1912-08-22
Abstract: 12,367. Blanchard, A. I., and Burgoyne, E. A. H. May 22. Atmospheric vapour burners ; vaporizing-apparatus. - The valve spindle of an atmospheric vapour burner is provided with a fusible - metal lock which holds it in the closed position until the vaporizer is heated to a certain temperature, and with means for automatically opening the valve on the release of the lock. The valve spindle may also be oper a t e d externally by hand. In the construction shown, the spindle B carrying the nipplecleaning device A and valve E is connected by its reduced outer end and a nut N and operating-knob I to an expansible metal box or bellows H, which encloses the end of a casing C attached to the burner. Expansion of the bellows may be assisted by one or more internal springs, and a screw-cap working on the flange M of a screwed union C<1>, M<1> is provided for closing the valve E. Vapour from the vaporizer S, to which heat is conducted by an annular plate Y, is emitted through the nipple D and draws in air through the perforated box T, two tubes on opposite sides of the casing C and oppositely-disposed openings T<Î>, the mixture passing through a double cone U and tube V to the burner W. When the burner is extinguished by the closing of the valve E, the easily-fusible metal O<1> in a cup 0, the lower end of which engages with a recess, groove, &c. in the spindle B, solidifies, and the spindle is locked thereby to a fixed pin P carried by a plug Q which screws in an extension R of the casing C. The burner is started by means of an annular or other starting-cup on the burner head. The cap L being screwed back, when the apparatus is sufficiently hot to fuse the metal O<1>, the spindle B is released and the valve E is opened automatically by the pressure of vapour inside the bellows H to which it leaks along the spindle B. In a modification, the cup 0 is arranged fixedly beneath the spindle B, and the pin P extends into the fusible metal at its lower end, and at its upper engages with the spindle. As applied to a standard lamp, a cylindrical metal casing may enclose the hot parts of the burner, and may also enclose the automatic spindle-locking device. In another arrangement, for heating purposes, the vaporizer is arranged vertically upon the reservoir and the mixing-tube has a perforated end arranged within an open-topped metal pan over the spindle casing, the vaporizer being heated by conduction from the pan. After each momentary extinction of the flame due to operation of the nozzle-cleaning device, the vapour is re-ignited, in the case of a lighting-burner by the mantle, in the case of a heating-burner by an automatically-acting device such as one or more pieces of silica or quartz or other non-combustible material arranged so as to be heated by the flame. Instead of making the lower part of the vaporizing-tube S detachable, the extension R can be arranged immediately over it to provide access thereto. Specifications 16,661/04 and 26,920/08 are referred to.