Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1977-07-21
1979-01-16
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 754, B65H 2522, B65H 2306
Patent
active
041345584
ABSTRACT:
A brake construction for braking a roll of fabric journalled on a cloth-laying machine having first and second spaced frame portions, said brake construction including a brake band having a first end portion anchored to the first portion of the frame by a spring arrangement, and a second end portion attached to a wind-up roller mounted on the second portion of the frame, with an intermediate brake band portion therebetween lying in contiguous relationship to the surface of the fabric roll, a motor for selectively winding the wind-up roller to cause the intermediate brake band portion to press against the outer surface of the fabric roll to thereby effect braking thereof, the motor being actuated by a dancer bar actuated switch, or a reversal switch for the cloth-laying machine, or a switch which is responsive to excessive slack in the brake band, and a time delay switch for causing the motor to be energized for a predetermined time period each time it is actuated. In one embodiment, when the motor is deenergized, the spring arrangement loosens the brake band so that it exerts no braking force. In another embodiment, a limited unwind mechanism is associated with the wind-up roller to provide limited unwinding under the bias of the spring arrangement after the motor is deenergized to thereby maintain a drag on the roll which is smaller than the braking force experienced when the motor is energized.
REFERENCES:
patent: 2343181 (1944-02-01), Heinz
patent: 2436067 (1948-02-01), Fonda
patent: 3140359 (1964-07-01), Rupard
patent: 3275264 (1966-09-01), Crow
patent: 3310254 (1967-03-01), Merrill
Cutting Room Appliances Corporation
Gastel Joseph P.
McCarthy Edward J.
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