Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1978-11-24
1980-09-09
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 2500, B65H 2532, B65H 5120
Patent
active
042213460
ABSTRACT:
A feeding mechanism is provided for feeding continuously operating film-developing machines in which provision is made preventing retraction of already fed film from the developing machine in the event of breaking of the film. The invention includes arrangements for arresting the feeding operation with the film movement stopping at the place where it is located when the breaking occurs. Sensors are provided for engaging the guide rolls for the film to determine when no film is present. The sensors are connected to brakes for the activation thereof when no film is present in the guide rolls. The device of the invention includes provision for continuously feeding the last of a roll of film while a new roll is being inserted.
REFERENCES:
patent: 1629030 (1927-05-01), Garbutt
patent: 1679096 (1928-07-01), Pourfillet et al.
patent: 2016083 (1935-10-01), Ensign et al.
patent: 2048182 (1936-07-01), Ybarrondo
patent: 2146170 (1939-02-01), Brenbarger et al.
patent: 3049308 (1962-08-01), Lang
patent: 3089658 (1963-05-01), Good
patent: 3370801 (1968-02-01), Ames
patent: 3669375 (1972-06-01), Bruton
Seifert Hans-Georg
Simon Joachim
Wachholder Werner
Gilreath Stanley N.
Hostert AutomataDusseldorf GmbH & Co.
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