Apparatus for controlling a plurality of stud tensioning devices
First Claim
1. An apparatus for automatically controlling a plurality of stud tensioning devices by sequentially transmitting a plurality of control signals thereto, said plurality of control signals indicating a plurality of operative steps to be completed by each of said stud tensioning devices, said plurality of stud tensioning devices receiving each control signal simultaneously, each of said stud tensioning devices being disabled, upon completion of each of said operative steps, independently from the other said stud tensioning devices, said apparatus comprising:
- a central control means for sequentially outputting a plurality of control signals;
a plurality of stud tensioning devices, each of said stud tensioning devices receiving each of said control signals, each of said stud tensioning devices producing a step completion signal upon the completion of any given operative step indicated by a given control signal;
said central control means outputting a subsequent control signal only when it receives said step completion signal from each of said stud tensioning devices.
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Accused Products
Abstract
An apparatus for automating the operation of a plurality of stud tensioning devices. A central control unit outputs a sequence of control signals, each of the control signals indicating an operative step to be completed by the stud tensioning devices. The next control signal is not sent out until a signal is produced which indicates that each of the stud tensioning devices have completed the preceding operative step. When the automatic operation is not continued due to break-down and undue slow-down in the operation of one of the devices, the automatic operation is temporarily interrupted, and the manually-operated switch is activated to return the mode to the automatic operation. Alternately, the other normal devices are automatically operated and thereafter, the malfunctioning device may only be examined.
18 Citations
5 Claims
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1. An apparatus for automatically controlling a plurality of stud tensioning devices by sequentially transmitting a plurality of control signals thereto, said plurality of control signals indicating a plurality of operative steps to be completed by each of said stud tensioning devices, said plurality of stud tensioning devices receiving each control signal simultaneously, each of said stud tensioning devices being disabled, upon completion of each of said operative steps, independently from the other said stud tensioning devices, said apparatus comprising:
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a central control means for sequentially outputting a plurality of control signals; a plurality of stud tensioning devices, each of said stud tensioning devices receiving each of said control signals, each of said stud tensioning devices producing a step completion signal upon the completion of any given operative step indicated by a given control signal; said central control means outputting a subsequent control signal only when it receives said step completion signal from each of said stud tensioning devices. - View Dependent Claims (2, 3, 4, 5)
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Specification