Braking system for bobbin-holder supports

Details Braking system for bobbin-holder supports Braking system for bobbin-holder supports

1994-03-24

1995-11-21

Jillions, John M.

Apparel

Garment protectors

Aprons

2424222, B65H 2308

Patent

active

054679346

ABSTRACT:
A braking system for bobbin holders for holding a bobbin. A closed oleo-hydraulic circuit adapted to increase the flow of oleo-hydraulic fluid to two connected fluid gear pumps and reduction units. The increased fluid pressure to the gear pumps brake rotation of the bobbin-holders as the inertial racing of the bobbin increases, e.g. with the unwinding of sheet material on the bobbin. The oleo-hydraulic circuit includes a pressure regulator and a solenoid valve for transmitting oleo-hydraulic fluid contained in a tank through the oleo-hydraulic circuit past both gear pumps.

REFERENCES:
patent: 2631790 (1953-03-01), Wheldon
patent: 2631791 (1953-03-01), Wheldon
patent: 2636693 (1953-04-01), Littel et al.
patent: 2759684 (1956-08-01), Cross
patent: 3036787 (1962-05-01), Triquet
patent: 3158356 (1964-11-01), Carlson et al.
patent: 3558074 (1971-01-01), Held
patent: 3861496 (1975-01-01), Hoover
patent: 4007816 (1977-02-01), Bayles et al.
patent: 4114827 (1978-09-01), Maier
patent: 4176805 (1979-12-01), Jackson

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