Patent GB-369658-A (GB)
Title: Apparatus for feeding or charging coal or other granular material
IPC: C10B37/02
Filed: 1930-12-19
Abstract: 369,658. Feeding devices for granular &c. materials. ILLING- WORTH, S. R., Fernwood, Radyr, Glamorgan, and ILLINGWORTH CAR. BONIZATION CO., Ltd., 16, Kennedy Street, Manchester. Dec. 19, 1930, Nos. 38380/30 and 26369/31. Addition to 333,597, [Class 59, Grinding, crushing, &c.]. [Class 59.] When feeding coal, or other granular material into a retort or container, the charge is tamped by imparting a succession of blows to its surface during the charging operation, by a weight suspended from a wire rope or chain to which an intermittent upward movement is given, means being provided for taking up slack in the rope as the charge rises in the container. During the charging of retorts B, a weight 1 is suspended in each retort by a wire rope 2 which runs over a pulley 3 which is given an up and down motion, and over a pulley 4 attached by a counterweight which takes up the slack, being then secured to the upper part of the travelling charging and tamping car D. Coal is fed from a hopper 6 through tun-dishes 9 into each retort, the doors at the bottom of each discharge shoot 7<1> comprising side plates 39, Fig. 10, a tray portion 39<1>, and a circular portion 40 closing the shoot, the tray 39<1> forming a continuation of the shoot when the door is opened. The door is opened by a lever 41 and closed by a lever 43 and a ball 45 on the wire supporting the tamping weight when the latter is raised from the retort. The pulleys 3 are mounted in sets of five on shafts 12 supported by arms 13 beneath which are cams 20 driven from a motor 24, so that the pulleys are given an up and down motion. Each wire 2 passes round a pulley 4, Fig. 6, held in plates 25 supported on trunnions 26 in a guide block 27 sliding on a guide-rod 28. A pawl 29 prevents rotation of the pulley 4, and an upward pull of the wire 2 locks the device by a brake shoe 31 to the guiderod, but when tension is removed from the wire due to the rise of the charge, the device falls due to its own weight down the guide-rod and takes up the slack in the wire, occupying the positions 1, 2, 3 shown in Fig. 10. The tundish supporting ropes each passes over a pulley 51, the pulley 52 of a hand-wheel 11, and pulley 53, and is attached to a counterweight 10. On the tamping side, a cradle having finger-plates 58 may be used to raise the tundishes, these cradles being for the purpose attached to the tamping ropes. In an alternative tamping apparatus, the rope 2 passes over a friction pulley 64, Fig. 15, and counterpoise 65. The pulley 64 is in two portions held together by springs 74, the V-shaped groove 73 periodically meshing with and being driven by an enlarged segmental portion 74 of a driving disc 68, Fig. 18, to raise the tamping weight, which falls back when raised to the extent of its travel, the counterpoise 65 taking up the slack. The tundishes are each provided with brackets 83 supporting a squared shaft 84 having a hole 85 to take the rope 2, and by partial rotation of the shaft 84, by hand lever 86, each rope is gripped so that the tundish may be raised. The charging door 75 may be closed when the counterpoise 65 falls far enough to engage with a catch lever 82 which raises a bar 80 releasing the door.