Pusher ram and quench car travel synchronization system

Abstract

An electrical pulsing unit in the pusher ram drive emits a pulse for every preselected incremental distance traveled by the ram from the face of the oven at the start of the push to the completion of the push. The pulses are received in the quench car locomotive and are converted to signals that show the position of the ram during its travel. The quench car has a similar pulsing unit, and pulses from this unit are converted to signals that show the position of the quench car. The quench car locomotive operator can then coordinate the signals to achieve proper coke distribution in the quenching car.

I claim: 
     
       1. A system for synchronizing .[.the travel of a pusher ram in a coke oven chamber with.]..Iadd., with the travel of a pusher ram in a coke oven chamber, .Iaddend.the travel of a coke quenching car .[.receiving.]. .Iadd.that receives .Iaddend.hot coke from an oven chamber and .[.propelled.]. .Iadd.that is moved .Iaddend.by a locomotive relative to such oven chamber, wherein the improvement comprises: a. a switch means activated by said pusher ram as it moves toward and into an oven chamber to be pushed and closing an electrical circuit;   b. a .[.pulse transmitter.]. .Iadd.first pulser .Iaddend.in said circuit .Iadd., .Iaddend.which is activated when said switch means closes .Iadd., .Iaddend.that emits pulses;   c. electrical receiver means in said locomotive that receives said emitted pulses and thereafter energizes an electrical circuit wherein there is   d. a first stepping motor .[.that actuates said pusher ram.]. .Iadd.energized .Iaddend.in a step-by-step manner, responsive to the received pulses .[.and circuit energization;.]. .Iadd.from said first pulser; .Iaddend.   e. a .Iadd.second .Iaddend.pulser, in said quenching car .Iadd., .Iaddend.that is .[.energized.]. .Iadd.activated .Iaddend.by .[.a signal emitted.]. .Iadd.movement of said quenching car which emits pulses that are received .Iaddend.by said receiver;   f. a second stepping motor that is energized .[.by said pulser and that moves said quenching car in a step-by-step manner in sequence with said pusher ram;.]. .Iadd., in a step-by-step manner, responsive to the received pulses from said second pulser; .Iaddend.and   g. indicator means in said locomotive that is responsive to said .[.stepping motors.]. .Iadd.first stepping motor and said second stepping motor .Iaddend.and indicates the relative positions of the pushing ram and the quenching car.   
     
     
       2. The invention of claim 1 including: a. .Iadd.de-energizing .Iaddend.means actuated by said pusher ram at the end of its stroke for de-energizing said .[.circuitry.]. .Iadd.electrical receiver means; and further comprising .Iaddend.   b. a reset pulser energized by said .[.means that sends electrical pulse signals to both of said indicators.]. .Iadd.actuation of said de-energization means .Iaddend.whereby said .[.indicators are.]. .Iadd.indicator means is .Iaddend.reset to .Iadd.its .Iaddend.initial .[.positions.]. .Iadd.position.Iaddend. .   
     
     
       3. The invention of claim 2 including: a. switch means, actuated when said .[.indicators return.]. .Iadd.indicator means returns .Iaddend.to the initial position, that de-energizes .[.a power circuitry to said pulse transmitter.]. .Iadd.said electrical circuit.Iaddend..   
     
     
       4. A system for synchronizing .[.the travel of a pusher ram in a coke oven chamber with.].  .Iadd., with the travel of a pusher ram in a coke oven chamber, .Iaddend.the travel of a coke quenching car receiving hot coke from the oven chamber and propelled by a locomotive relative to such oven chamber, wherein the improvement comprises: a. switch means activated by said pusher ram .Iadd., .Iaddend.as it moves toward and into an oven chamber to be pushed .Iadd., .Iaddend.that closes an electrical circuit;   b. a first pulser .Iadd., .Iaddend.energized when said switch closes .Iadd.said circuit, .Iaddend.that emits .Iadd.first .Iaddend.pulse signals as said pusher ram moves into said oven chamber;   c. .[.a stepping motor actuated to turn in one direction responsively to said pulse signals.]. .Iadd.a second pulser that emits second pulse signals as said quench car receives coke pushed from said oven chamber and moves relative thereto.Iaddend.;   d. .[.a second pulser that emits pulse signals as said quench car receives coke pushed from said oven chamber and moves relative thereto; and.]. .Iadd.a stepping motor actuated to turn in one direction responsively to the receipt of said first pulse signals and actuated to turn in the opposite direction responsive to the receipt of said second pulse signals, said stepping motor being so constructed that it does not rotate when said first pulse signals and second pulse signals are equal in number during any period of time, said stepping motor actuating movement of said quench car at a faster rate of speed when said number of said second pulse signals is less during said period of time than said number of said first pulse signals, and actuating movement of said quench car at a slower rate of speed when said number of said first pulse signals is less during said period of time than said number of said second pulse signals; .Iaddend.   d. means .[.sending electrical signals from said second pulser to said stepping motor whereby said stepping motor turns in a direction opposite to said one direction, said stepping motor being so construed that it does not rotate when the pulse signals from said first and said second pulsers are equal in number during any period..]. .Iadd.transmitting said first pulse signals from said first pulser to said stepping motor; and   f. means transmitting said second pulse signals from said second pulser to said stepping motor. .Iaddend. .[.5. The invention of claim 4 wherein:   a. said stepping motor rotates in a direction to move said quench car at a faster rate of speed when the number of pulses received from said second pulser is less for said period of time than the number of pulses received from said first pulser; and wherein   b. said stepping motor, when it receives more pulses from said second pulser than from said first pulser, actuates a rotary cam limit switch to effect control of the speed of said quench car, to thereby affect a   
     
     
        balance of position between the quench car and the pusher ram..].  6. The invention of claim 4 wherein: a. said stepping motor, when it receives .[.more.]. .Iadd.a differential in .Iaddend.pulses from said first pulser .[.than.]. .Iadd.and .Iaddend.said .Iadd.second .Iaddend.pulser .Iadd., .Iaddend.actuates a rotary cam limit switch to effect control of the speed of the quench car to thereby effect a .[.balance.]. .Iadd.synchronization .Iaddend.between the quench car and the pusher ram.