Presses – Binding – With automatic or material-triggered control
Patent
1987-09-25
1988-11-22
Heyman, John S.
Presses
Binding
With automatic or material-triggered control
100 8, 414901, 414907, 377 8, 364563, B65B 1320
Patent
active
047857315
ABSTRACT:
An apparatus and method according to the invention for determining respective deviations in the total number of signatures in each of a plurality of individual successive stacks from a given number of signatures having a ram for compressing the stacks of the signatures, a linear differential voltage transducer for measuring the relative heights of signature stacks by measuring distance that the ram travels, control apparatus comprised primarily of a programmable controller for processing the output of the transducer and optical detection means for monitoring the stack top for a sheet indicating that the stack has an odd count and disabling the control apparatus for indicating deviations in stack count. Additionally, a strapper which includes the apparatus for determining the count deviations adapted to monitor the position of a belt drive.
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American Newspaper Publishers Association
Heyman John S.
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