GB751504A - Improvements in lighters operating with a liquefied gas - Google Patents

Abstract

751,504. Cigarette lighters. ETABLISSEMENTS GENOUD & CIE. Feb. 2, 1954 [Feb. 2, 1953; June 17, 1953; July 21, 1953], No. 3108/54. Class 75(3). In a lighter using a compressed combustible gas in a detachable tank provided with a discharge valve associated with a regulating device forming with the valve a single unit or head mounted on the tank the head with the tank is suspended by the valve stem, from a fixed cover of a casing within which the tank is free to move parallel to the valve axis so that by exerting a downward thrust from outside the casing the tank is displaced so as to open the valve and on release of the thrust the tank is returned by spring action to its initial position to close the valve. A member 2 formed with a passage 3 narrowed at 4 to provide a valve seating 5 and screwed into the top of the tank A has a cap 12 screwed on the upper part thereof. The cap 12 contains a spring 14 which bears at one end against a flange formed on the cap 12 at the other end on a valve 9 to press the valve 9 on to the seating 5. The valve 9 has a screwed stem 10 which is formed with one or more flats 18 and engages a tapped hole in a boss 16 or a nut 17, preferably fixed in the boss 16 during casting, forming part of the casing B. When the tank A is depressed by a spring- loaded member 25 the seating 5 moves away from the valve 9 and the gas passes, by the flats 18 on the valve stem 10, to a duct 19 and burner tube 22 where it is ignited by sparks from a flint 37. The valve spring 14 raises the seat 5 against the valve 9 on release of the member 25. The flint 37 is pressed against the friction wheel 38 by a spring 35 compressed by an adjustable screwed member 33 which can be turned by a driving element 34. A pad 6 of compressible material in the passage 3 is pressed against the underside of the seating 5 by a screw 7 to regulate the gas flow the throttling being effected by the tightening of the thread of screw 7 against the thread of passage 3 in the member 2. In the arrangement shown in Figs. 5, 6 and 7, the valve stem 10 screws into a burner nozzle 45 held in the casing B by a member 49 mounted in an aperture 48 and pressed into engagement with a peripheral groove 46 in the nozzle 45 by the upper part of the casing C. Two pins 52 prevent the member 49 becoming detached from the casing B when the casing C is removed to allow the tank and valve assembly to be removed. The tank A is depressed by a bar 56 attached to two projections 53 sliding in two grooves 55 in the lighter wall and provided with inwardly bent tank engaging lugs 54. The friction wheel 59 is mounted on a spindle 57 horizontally mounted on the casing B and carrying two driving elements 58. The flint 60 is pressed against the friction wheel 59 by a spring 61.