The Mechanical Handling and Storing of Material

382 THE MECHANICAL HANDLING OF MATERIAL coke ovens, b the coke pusher, c the quenching machine, d a stationary pusher at the end of the battery, and e a railway truck, belt conveyor, or screen. The machine is placed in position opposite the oven to be emptied, the chimney valve is closed, and the water pipe connected with the hose ; the door next the oven is then opened, and the chamber is filled with coke, the rear door is closed, and the water turned full on for several minutes, Fig. 539. General Arrangement showing an Installation of the Moore Machine. work d, with a suspended receptacle b with iron, and fitted with a sliding door c on the until it begins to drain away freely, where- upon the supply is shut off, and the machine is run along , to the stationary pusher, where all the doors are opened and the coke ex- pelled into the truck opposite. This machine is used in America, but is too expensive to justify its more general adoption, especially now that less stress is laid on the appearance of the coke than was formerly the case, and simpler forms of quencher give similar results at less cost. An apparatus of an entirely different type to all the foregoing is that of Illig, made by A. Bleichert & Co. (Fig, 540). Close in front of the oven doors is a longitudinal water trench tz, over which travels a frame- sloping bottom, preferably of perforated sheet side remote from the ovens. This receptacle is slung on two chains, adapted to be wound on drums in the upper portion of the frame by motor e. The winding and travelling motors are reversible, and are operated from the cab at the top of the machine. A double overhead runway g g-., with rounded ends, and supported by two structures f, is provided at the rear of the machine, and conveys the skips h from the quencher round to the trucks. The skips (Fig. 541) are sus- pended from a bent arm a attached to the wheel truck b, which is operated by an en- closed motor. The skip is slung on two wire ropes adapted to be wound on a double drum e by means of a second motor. Cur- rent is supplied to both motors through a live wire f and collector g. The skip is closed by bottom flaps h /z, operated by a lever z, provided with a contact piece. The Fig. 540. The Illig Coke Loader. motors are switched in and out of action by portable switches, which enable the skips to be stopped and discharged at any desired point, and also to run at definite intervals. Two men are sufficient to work the plant, and the modzis operandi is as follows: The quenching machine is put into position in front of the oven to be discharged with the receptacle up, which is, however, lowered immediately the machine is in position ; the coke is then pushed into it and thoroughly quenched. When the coke has been quenched, and the machine moved aside to enable the oven door to be luted up, the receptacle is raised again, the attendant turns to the runway, on which the empty skip is waiting, switches on the lifting motor, which lowers the skip, the latter being then filled automati-