Drive mechanism

Details Drive mechanism Drive mechanism

1976-12-08

1981-09-08

Petrakes, John

Textiles: braiding, netting, and lace making

Apparatus

Braiding

310 13, D04C 300, H02K 4100

Patent

active

042878080

ABSTRACT:
A drive mechanism for driving one or a plurality of displaceable elements around a closed path, such as a circle, constituted by a linear induction actuator associated with means for constraining the displaceable elements to move in the closed path. A capacitive feedback control system determines the position of the element or elements around the path and controls the windings of the linear induction actuator in dependence on an error signal generated therefrom. An open path drive mechanism having a plurality of linear induction actuators and a capacitive feedback control system is also encompassed by the invention as are hybrid linear induction motors using sets of arcuate linear induction actuators around the rim of a reaction member which drives an output shaft of the motor.

REFERENCES:
patent: 591105 (1897-10-01), Shuttlesworth
patent: 1912167 (1933-05-01), Anderson
patent: 2506315 (1950-05-01), Petersen
patent: 2870349 (1959-01-01), Rosenberg et al.
patent: 2993130 (1961-07-01), Laithwaite
patent: 3194032 (1965-07-01), Von Brimer
patent: 3470828 (1969-10-01), Powell, Jr. et al.
patent: 3681630 (1972-08-01), Sutton

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