×

CIRCUMFERENTIAL AND LATERAL WEB REGISTRATION CONTROL SYSTEM

  • US 3,701,464 A
  • Filed: 10/15/1970
  • Issued: 10/31/1972
  • Est. Priority Date: 10/15/1970
  • Status: Expired due to Term
First Claim
Patent Images

1. In a machine for operating on stock moving through the machine including first adjusting means for making a first adjustment of said stock relative to the operation performed by said machine on said stock with respect to a first degree of freedom, second adjustment means for making a second adjustment of said stock relative to the operation of said machine on said stock with respect to a second degree of freedom, sensor means for sensing a first register mark on said stock which indicates the relationship of said stock to the operation of said machine performed thereon with respect to said first degree of freedom and for sensing a second register mark on said stock to indicate the relationship of the stock to the operation of the machine with respect to said second degree of freedom, changes in the relationship of said stock to the operation of said machine with respect to the second degree of freedom effecting a change in the sensed relationship of said first mark independently of a change in the relationship of the machine and stock with respect to said first degree of freedom, and means responsive to said sensor means for ascertaining errors in the adjustment of said first and second adjusting means and providing first and second error signals for use in correcting said first and second adjusting means in dependency on the sensing of said first and second marks including means responsive to the sensing of said second mark for compensating said first error signal for error introduced by changes with respect to said second degree of freedom.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×