Patent GB-206545-A (GB)
Title: Improvements in or relating to wick burners
IPC: F23D3/00
Filed: 1922-06-07
Abstract: 206,545. Marks, E. C. R., (Cleveland Metals Products Co.). June 7, 1922. Wick burners, annular; wick-operating and wick-locking devices; flame spreaders; burners, mounting.-A wick burner is provided with stop means for preventing the raising of the wick above a safe position, which means is rendered operative by a member or part, preferably a flame spreader or an air distributor, which is engaged and moved by the wick during the initial part of its upward movement and then automatically withdrawn from the wick, the stop means being subsequently caused to function independently of the member or part to stop the upward movement of the wick. In one form, a burner comprises inner and outer wick tubes 1, 2, enclosing an annular wick 5 supported by a carrier 7. The inner wick tube 1 is formed with an offset part 10, closed by top and bottom walls 12, 11, the former having a tubular extension 13 through which extends a rod 15 connected by a member 16 and prongs 70 with the carrier 7. The wick is operated by means of a hand wheel 23 on a spindle 22, which is journaled in a bracket 25 depending from the burner and carries a pinion 21 engaging a rack member 18 connected at 17 to the rod 15. As the wick rises it engages the flange 53 of a flame spreader 50 which is attached to a post 45 rigidly secured to a span-plate 30 from which depends a frame 31, guided between overturned portions 32, 33 on the bracket 25, and carrying on a pivot 36 a member 35 formed with an integral resilient pawl 39 passing through a notch 41 in a step plate 40. The upward movement of the flame spreader carries the pawl into engagement with a ratchet-wheel 60 on the spindle 22, the movement of the member 35 being maintained vertical by a wall 62 on the bent-over portion 33 of the bracket. Owing to the wheel 60 being of greater diameter than the pinion 21, the flame spreader is then raised more rapidly than the wick-until it reaches its highest position when the lower end of the member 25, which is curved on an arc concentric with its pivoted axis, is withdrawn from the guide 33 and swung outwardly on a bent portion of a wall 62, a resilient stop 65 engaging the frame 31 and locking the wick. The flame spreader 50 is removably secured to the post 45 by means of a gravity-actuated latch plate 47 pivoted in the bifurcated end of the post. The spreader may be lifted off the post by means of a movable collar 55 which, as it is raised, engages a projection 57 on the plate and retracts the keeper portion 51. The burner is supported by a member 26 attached to the stove base and an elbow fuel supply fitting 27. In a second form, walls 81 extending across the inner wick tube 1 enclose a space closed by top and bottom walls 83, 82, the former having a tubular extension 84 through which passes a rod 85 connected at the bottom by a bar 85<a> with the wick carrier and at the top with a rack member 86 guided through an aperture 87 in a bracket 89, and engaged by a pinion 95. A flame spreader 125 is attached by hooks 126 to a span plate 100 carrying a frame 101, guided by overturned portions 105 of the bracket 89, and to which is pivoted a weighted pawl 110 so as to be capable of yielding laterally, the nose 116 of the pawl cooperating with a ratchet-wheel 115. The pawl comprises a plate 117 having a notch 118 which normally embraces a guide wall 119 formed integral with the bracket 89 and is disengaged therefrom when the flame spreader reaches its highest position, when the pawl swings until its edge portion 128 engages the guide wall and thereby locks the wick-raising spindle 90. In a third form, the member 35 carries a pawl 150, pivoted at 151, weighted at 152 and free to swing between stops 154, 155 to ensure the engagement of its nose 56 with the ratchet wheel.