GB674483A - Incandescent mantle lantern - Google Patents

Abstract

674,483. Vapour burners; supporting globes for lamps. ALADDIN INDUSTRIES, Inc. June 13, 1950 [July 9, 1949], No. 14772/50. Classes 75(i) and 75(ii) In an inverted incandescent mantle lantern burning hydrocarbon fuel under pressure a mixing tube 34 aligned with a vertical generating tube 42 and supporting a mantle at its lower end is disposed within an inner chimney 10 conveying combustion products, and air tubes 38a, 38b, extend radially from the mixing tube to ports in the wall of the inner chimney 10, an outer chimney 20 being spaced around the inner chimney and having at its lower end means for directing air around the inner chimney and a toroidal fuel tank 30 being spaced away from and around the outer chimney, the outer chimney shielding the air tubes 38a, 38b. The generator tube 42 terminates in an injector nozzle 44 secured to a connector block 36 supported by the air tubes 38a, 38b and supporting the mixing tube. The lower end of the inner chimney 10 is flared outwardly to form a reflector baffle 10a and the lower end of the outer chimney 20 is connected by brackets 52 to a flared baffle 24 which defines with the reflector baffle 10a the means for directing air around the inner chimney. Additional air may also enter the outer chimney 20 between its flared lower end 20b and the baffle 24. The outer chimney supports on its upper end a perforated cylindrical hood 18, and the upper end of the inner chimney extends above the outer chimney and is secured to the hood by a bracket 14. The brackets 52 also serve to centre the inner tube in the outer tube. The toroidal fuel tank is formed from two mating shells 30a, 30b of V-section and is supported by perforated brackets 28 from a ring 26 welded to the underside of the baffle 24 at the lower end of the outer chimney. The cylindrical inner wall of the tank is spaced from the outer chimney by at least the spacing between the two chimneys. A shut-off valve 46 is mounted on the top of the tank. The globe 54 surrounding the mantle has a central aperture 54b for the entrance of air and is supported on a ring 50 which at one point is hinged to the ring 26 on the baffle 24 and at its opposite point has a flange 60 overlying the rim of the globe and provided with a threaded hole with which engages a bolt 62 having a collar 62a abutting the upper edge of a sleeve 64 upstanding from the ring 26. The sleeve is in line with the bottom of the fuel tank and the length of the bolt is greater than the distance between the sleeve and the tank so that the bolt cannot be removed. The globe is surrounded by a cage which is welded to the hinged ring 56 and which may serve as a stand for the lantern.