Patent GB-375647-A (GB)
Title: Improvements in stoves or similar apparatus burning liquid fuel
IPC: F24C5/18
Filed: 1931-10-09
Abstract: 375,647. Air heating stoves ; liquidfuel burners. PERFECTION STOVE CO., 7609, Platt Avenue, Cleveland, Ohio, U.S.A. Oct. 9, 1931, No. 28132. Convention date, Oct. 13, 1930. [Classes 75 (i) and 126.] An air heating stove comprises a liquid fuel burner arranged in a cylindrical drum 30 which is supported by brackets 38 on ledges 20 in a rectangular casing made up of legs 17, corner posts 10, a top frame 11, fitted with grids 15, a base frame 16, front and back panels 1, 3, and side panels 2, all the parts being detachably secured together. The side panels are formed with air inlets 25 and the side and front panels with air outlets 26. The drum 30 has a closed top 31 and a flange 35 situated some distance from its lower end. The burner consists of a fuel pot 45 having an annular top wall 55 secured by spacing rivets 57 to an annular plate 58 which is bolted to the flange 35. The fuel is supplied from a constant level device through a fitting 135 to a sump 47 in the fuel pot and burns with primary air admitted through apertures 61 in the pot wall 46 and with secondary air which is admitted through the passage 60 between the wall 55 and plate 58 and is deflected downwardly by lips 56, 59 on the wall and plate respectively. Ignition of the fuel is effected by inserting burning paper &c. through a neck 48 which projects through a slot 37 in the drum into an opening 27 in the front panel. The neck is then closed by a plug 49 which, when fully inserted, is secured by a gravity latch 54. When the latch is in its locking position a closure 28 is securable by hooks 29 over the opening 27. A peek hole 33 in the drum top 31 allows the flame to be viewed and a rod 73 having a conical collar 74 resting in a central aperture in the top 31 may be whirled so as to dislodge carbon deposited on the lip 59. The combustion gases pass over a semicircular baffle 71 to a T-fitting 78 attached to a flue pipe leading to a chimney. The T-fitting is provided with a pivoted gravity damper 80 carrying a weight 81. A liquid fuel supplying device suitable for use with the burner consists of a pan 93 which is connected to the fitting 135 by pipes 126, 134 fitted with a graduated metering valve 127 and carries at its upper edge a stiff wire 94 to which a carrier 100 for a removable fuel reservoir 115 is hinged. The reservoir 115 is sustained by a channel 105 on the carrier 100 in an inverted position, a spring valve 118 in its neck being opened by its engagement with the bottom of a cup 111 in the pan 93 so that the fuel escapes until it seals the valve 118. The cup 111 communicates with the pan 93 through openings 113 covered with screens 114 of fine mesh. The pan 93 is supported by brackets 90 which are secured with a shield 87 to the rear panel 3. An open water vessel 140 may be carried at the top of the drum 30 to humidify the air passing through the casing. Large stoves may be provided with fuel pots having several sumps 47a, Fig. 7, provided with fuel inlet connections 135a and connected by channels, additional air being introduced by one or more perforated flues 46a covered by a plate 58a having a downwardly turned lip 59a. In a modification the corner posts are formed integrally with the side panels.