Web transport system with electro-optical label detection

Details Web transport system with electro-optical label detection Web transport system with electro-optical label detection

1981-12-11

1983-04-26

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Automatic and/or material-triggered control

156542, 226 33, 226 45, B32B 3100

Patent

active

043812112

ABSTRACT:
A label carrier web transport for use in heat transfer decorators and the like, in which labels are optically registered to control web transport. A timing assembly coordinates the rotation of a cam shaft with the actuation and deactuation of clutch and brake assemblies within a metering roll. An optical scanner trained on the web registers a predetermined contrast location to actuate the brake and deactuate the clutch, subject to the presence of an enabling signal from the timing assembly. The metering roll, in combination with a reciprocating label shuttle, provides intermittent web motion to achieve controlled label advance.

REFERENCES:
patent: 4019935 (1977-04-01), Harvey
patent: 4214937 (1980-07-01), Geurtsen et al.
patent: 4248655 (1981-02-01), Kerwin
patent: 4315795 (1982-02-01), Jodrey et al.

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