Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – With particular drive
Patent
1992-08-06
1994-07-19
Stodola, Daniel P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
With particular drive
360 741, 360 95, 242340, 242343, G11B 1522
Patent
active
053301293
ABSTRACT:
An apparatus (1) constructed for at least reproducing signals from a magnetic tape (16) extending between two reel hubs (12, 13), comprises a tape-threading device (40), which is movable between a thread-out position and at least one thread-in position, a detection device (129) for detecting whether the tape-threading device (40) has reached a thread-in position, a winding-mandrel driving device (98) for driving two winding mandrels (95, 96) which cooperate with the reel hubs (12, 13), and a braking device, which is movable between a release position and a braking position, by means of which at the end of a thread-in process the winding mandrel (95) can be braked by which the magnetic tape (16) is unwound during this thread-in process. The braking device is constituted by the winding-mandrel driving device (98) set to its stationary mode, which after the tape-threading device (40) has reached a thread-in position is brought in driving engagement with the relevant winding mandrel (95) and, as a result of the inertial and friction conditions in the winding-mandrel driving device (98), brakes the winding mandrel (95) rapidly and effectively.
REFERENCES:
patent: 3809329 (1974-05-01), Jenkins
patent: 3918660 (1975-11-01), Takashino
patent: 4337910 (1982-07-01), Santoro
patent: 4449676 (1984-05-01), Ogata et al.
patent: 4638957 (1987-01-01), Graves
patent: 4988056 (1991-01-01), Shin
Nguyen John Q.
Stodola Daniel P.
U.S. Philips Corporation
Wieghaus Brian J.
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