Compensating thread brake

Details Compensating thread brake Compensating thread brake

1993-08-04

1995-07-04

Stodola, Daniel P.

Winding, tensioning, or guiding

Tension control or brake

Supply controlled

242155R, 242 4701, 188 83, 188296, B65H 5100, F16D 6300, F16D 5702

Patent

active

054293197

ABSTRACT:
A compensating thread brake useful, in particular, with warping creels. The thread brake has a rotatable roller whose circumference is at least partially surrounded by and drivable by thread. The roller is connected to the rotor of a turbine. A mechanical thread tension comparator by way of its setting member, influences a throttle in the path of the turbine inlet or outlet stream. The setting member may, preferably, be a throttle plate which regulates the inlet or outlet ports of turbine T. In this manner, the thread tension may be controlled without frictional load on the threads or the need to provide seals against oil or the like. Additionally, an eddy current brake can be provided for the nominal setting of the basic thread tension.

REFERENCES:
patent: 2419372 (1947-04-01), Schneider
patent: 2519882 (1950-08-01), Bullard et al.
patent: 2524217 (1950-10-01), Ancet
patent: 2574378 (1951-11-01), Crookston
patent: 2605061 (1952-07-01), Howe
patent: 3312414 (1967-04-01), Knapp
patent: 3349553 (1967-10-01), Hood
patent: 3499615 (1970-03-01), Kircher
patent: 3618870 (1971-11-01), Martin
patent: 3837598 (1974-09-01), Brown
patent: 4029298 (1977-06-01), Lassche
patent: 4660783 (1987-04-01), Roser et al.
patent: 4937483 (1990-06-01), Matsui et al.

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