Electricity: motive power systems – With particular motor-driven load device – Tension-maintaining type of motor-control system
Patent
1981-09-08
1983-08-30
Weldon, Ulysses
Electricity: motive power systems
With particular motor-driven load device
Tension-maintaining type of motor-control system
318 7, 318309, 318404, 318415, 242 18G, B65H 5938
Patent
active
044019246
ABSTRACT:
A system for winding linear material, such as strands of molten glass, into a package includes a mechanism for collecting the strands, a motor for rotating the collecting mechanism, a drive mechanism for controlling the speed of the motor in proportion to the frequency of a signal applied thereto, and a digital frequency generator for producing such a signal. The generator permits an initial frequency and a rate of change of frequency to be manually selected so that the speed of the motor is periodically decreased to maintain a substantially constant circumferential speed of the package thereby keeping the strand under constant tension. The generator includes a mechanism for digitally storing a manually selected number and a mechanism for generating a signal having a frequency that is proportional to the stored number. A mechanism for periodically incrementing the stored number at a selected rate produces a changing frequency and hence changing motor speed to maintain constant strand tension.
REFERENCES:
patent: 3317153 (1967-05-01), Raymond
patent: 3771324 (1973-11-01), Klink et al.
patent: 3838827 (1974-10-01), Klink et al.
patent: 3861609 (1975-01-01), Klink et al.
patent: 4146376 (1979-03-01), Beckman et al.
patent: 4181877 (1980-01-01), Gemp
Champion Ronald E.
Hudgens Ronald C.
Owens-Corning Fiberglas Corporation
Pacella Patrick P.
Weldon Ulysses
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