Patent GB-191420200-A (GB)
Title: Improvements in Means for Controlling Charging and Discharging Operations in connection with Gas Retorts.
IPC: C10B41/02
Filed: 1914-09-25
Granted: 1915-02-25
Abstract: 20,200. Carpenter, H. A., Warner, A. W., and Riter-Conley Manufacturing Co. Sept. 25. Charging and discharging.-In an apparatus for charging and discharging retorts of the through type, control devices are provided at both sides of the retort bench and are so arranged that the operating-motor of the machine cannot be started until both devices are set. The plant shown comprises a charging and discharging machine 4, which can be traversed along and operates from one side of the bench 2 of retorts 3, and a travelling hopper 19 for receiving discharged coke and feeding the producers. The two machines 4, 19 are traversed by motors 16, 20 respectively, controlled by reversing-switches 61, 62; the charging or discharging arm 7 is operated by a motor 12 controlled by a hand switch Z and a double solenoid switch 25 of usual construction; and the controls X, Y at the two sides of the bench are adapted to prevent (a) operation of the motor 12 until both have been set, and (b) operation of the motors 16, 20 until the arm 7 has completed its forward stroke, when the controls are automatically disengaged. Threephase current is supplied by trollies a, b, c and a', b', c<1> from conductors A, B, C, and A<1>, B', C', and pairs of connected dummy conductors G, G<1> and H, H<1> with corresponding trollies are also provided for each machine. Wires from trollies a, b lead to the switch 25, and from trolly c to the motors 12, 16. The circuit 31 of the ' forward ' solenoid 26 of the switch 25 extends from the trolly b<1> by the wire 33 to the gap 32 of the controller X, across the connexion between the trollies h, h', through the solenoid 26, to the gap 35 in the switch Z. From the gap, a wire 34 leads to a gap 36 on the controller Y, thence to a contact-arm 37, across the movable contact bar 15, to the contact-arm 38, connected with the wire 30 and the trolly c. When the gaps 32, 36 have been closed by the blades 39, 41 of the controllers X, Y respectively, the switch Z is moved to close the gap 34, and the ' forward ' solenoid 26 operates the switch 25 of the motor 12, which runs the arm 7 forward into the retort. The blades 39, 41 are held in position to close the gaps 32, 36 against the tension of springs by pivoted catches 44, 46 controlled by solenoids 45, 47. When the arm 7 reaches the forward limit of its travel, a circuit is completed by the contact bar 15 across the arms 52, 38, and the solenoids are energized, thus releasing the catches, breaking the controlling-circuit for the switch 25, and at the same time closing gaps 58, 58<1> and 59. 59<1> in the circuits of the traversing motors 16, 20. The solenoids 45, 47 are arranged in a circuit leading from trolly c by the wire 30 to the gap 38, 52 and thence to the point 48<1>. Here the circuit branches, one wire 49 leading through the solenoid 47 to the trolly b, and the other across the connexion between the trollies g, g<1> through the solenoid 45 to the trolly b'. The circuit for the ' backward' solenoid 27 extends from the trolly b through line 29 and solenoid 27 to the gap 35<1>, and thence by wire 36 to the contact-arm 57, across the contact bar 15 to the arm 38, and back by the wire 30 to the trolly c. The bar 15 is operated synchronously with the arm 7 by gearing 13.