Patent GB-190124218-A (GB)
Title: Improvements relating to Machines for the Manufacture of Mantles Employed in Incandescent Lighting.
Inventor: MULLER JEAN LEON
Filed: 1901-11-28
Granted: 1902-03-06
Abstract: 24,218. Muller, J. L., and Bonnet, J. Nov. 28. Incandescent gas lamps.- The speed at which mantles can be fed to, and, consequently, the producing- capacity of, the mantlemaking machine described in Specification No. 83, A.D. 1901 (in which the machine makes a single stoppage for each of the operations of burning off, calcining, immersing in collodion, and drying the mantles, a rod carrying a number of mantles being fed to the machine at each stoppage), are increased by increasing the number of stoppages ; thus, there are now three stoppages during the burning-off operation, four stoppages during the calcining operation, a fresh stoppage is introduced during which the mantle is cut off to the useful height, and a single stoppage for the immersion of the mantle in the collodion. The rods a carrying the mantles are placed upon two Galle or other chains b, which travel over pulleys c, d and the rods a are removed at the ends of the machine from the upper to the lower parts of the chain and vice versÔ, by rods and clutches f, h, which are actuated by cords or chains passing over the cams g. Each rod a is combined with a second rod a', which supports a platinum wire or other crown a<11> for centering the mantle and maintaining it open during the operations. When a rod a is introduced into the machine, its first stoppage is at the position 1, where there the mantles are ignited from above by circular gas flames i. The burning mantles then pass to the position 2, where the mantles continue burning during the stoppage without being subjected to the action of fresh gas flames. The burning off is completed at the position 3, where circular gas jets j are directed upon the lower portion of the mantles. At the next stoppage 4, the calcining operation commences, the interiors of the mantles being subjected to the flames of the powerful rotary burners k. At 5, flames from the burners l, m respectively play upon the inner and outer surfaces of the mantles, and, at 6, the calcining operation is continued by the action of the burners o on the interiors of the mantles. The displacement of the calcining- burners k, l, m, o and the frame z<1>, z<11> is determined by the position of a lever and an adjustable roller relatively to the actuating-cam on the shaft t<11>. At the stoppage 7, the calcining operation is completed by the flames from the fixed burners p. During the passage from the position 7 to the position 8, the mantles are cut down to the required height by adjustable knives 10<1>. When the retaining-mechanism is released by the movement of the machine, the knives 10', mounted on rods passing through fixed guide-tubes, are rapidly rotated by springs 21, which have been put under tension by cables passing over pulleys connected to the knife rods. As soon as the mantles have been cut, the rods a' rise under the action of rods q, which are similar to the rods f, h, and the released mantles pass to the inoperative position 9, and thence through a partition to the immersing position 10, whence they pass to the drying- chamber r.