GB276667A - Improvements in appliances for oil lamps or stoves - Google Patents

Abstract

276,667. Lampen-und Metallwarenfabriken R. Ditmar Geb. Br³nner Akt.-Ges., (Assignees of Doman, A.). Aug. 25, 1926, [Convention date]. Wick burners, blue flame.-Blue flames are. produced at wick burners by providing above the wick perforated discs or plates 21 such as described in Specification 271,518 supporting perforated metal casings 23<b> through which air is supplied to the outside of the flame. In some forms of burner perforated metal casings 23a may also be provided for supplying air to the inside of the flame. Fig. 1 shows one form of burner in which inner and outer casings 23<a>, 23<b> are connected by a rod 2 to a transverse member 3 on a perforated annular disc 21. The lower parts of the casings may be lined with wire netting 4, 4<a>. The upper ends of the wick tubes 5, 15 are bent over at the top and formed with holes 5<a>, 15a to allow air to pass to cool the wick below the disc 21. Fig. 6 shows a similar burner in which the casings 23<a>, 23<b> are adjustable relatively to the disc 21 by means of a rod 2 operated through rack and pinion gearing and fuel is conveyed from a reservoir 37 to the wick of the burner by a suction wick passing through a tube 38 in the reservoir and a flexible tube 39. Fig. 4 shows a perforated plate 21 resting on a flat wick and supporting conical casings 23<a>, 23b connected at their upper ends by wires 36. The bottom of the inner casing is imperforate so that the flames are caused to enter the conical flue. Small air inlet tubes mav extend through the flame space to the inside of the casing 23a. Fig. 14 shows a flat burner in which the wick tube 16 is extended to form the air flue and is provided with air inlet slots 16a. Openings 16<b> are provided in the wick tube below the plate 21 to allow the lower part of the wick to be ignited initially and to admit air for cooling this part of the wick when the flame is burning at the upper part of the wick. These openings 16<b> may be entirely or partially closed by an adjustable sleeve 43. In other forms of burners (1) the perforated plate is replaced by two rings which are connected by bridging members resting on the wick and may be integral with the casings 23a, 23b, (2) an absorbent asbestos ring is provided at the top of the wick. The application of the invention to inverted incandescent mantle burners and to burners for heating radiator elements is also described.