Abstract:
An arrangement in multiple color rotary printing machines for controlling the stacking of sheets so that they are stacked on either of one of two stacks. One stack is designated for normally processed sheets, and the other stack is designated for those sheets different from the normally processed ones. A shift register is actuated with shifting pulses from a pulse generator, and receives a signal from a sheet examining station in one stage of the register. A memory circuit is connected to this one stage of the register. The output of the memory circuit actuates, through an amplifier, a stacking mechanism so that the distribution of printed sheets is controlled between the two stacks.
Abstract:
An arrangement for controlling the operation of multiple color printing machines adapted for printing on material in sheet form. A shift register has its output stages connected to sampling circuits which control the on and off operation of the machine in dependence on the information contents of the shift register stages. A sheet sensing station detects the position of a sheet of material and transmits the corresponding information into the shift register which is shifted by clocked signals at predetermined instants in the machine operation.
Abstract:
A remote control arrangement for the positioning and drive members, for example, of a printing machine, in which stepping motors are coupled to the positioning or drive members. The stepping motors are controlled by a control network which is responsive to a single input pulse of determined duration for applying a series of successive control pulses to the stepping motors, so that the rotors of the stepping motors are in electrically similar positions, with respect to their stators, before and after each control pulse series. Means are provided for mechanically coupling the stepping motors to their respective positioning and drive members to obtain stepwise axial movement or rotation of the positioning or drive members. An input circuit of the control network may be provided to enable single step movement, continuous movement, or continuous movement for a preselected number of steps.
Abstract:
A remote control arrangement for the positioning and drive members, for example, of a printing machine, in which stepping motors are coupled to the positioning or drive members. The stepping motors are controlled by a control network which is responsive to a single input pulse of determined duration for applying a series of successive control pulses to the stepping motors, so that the rotors of the stepping motors are in electrically similar positions, with respect to their stators, before and after each control pulse series. Means are provided for mechanically coupling the stepping motors to their respective positioning and drive members to obtain stepwise axial movement or rotation of the positioning or drive members. An input circuit of the control network may be provided to enable single step movement, continuous movement, or continuous movement for a preselected number of steps.