Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1976-06-09
1978-06-27
Schaefer, Robert K.
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
511345R, H02P 500
Patent
active
040977870
ABSTRACT:
In order to control the peripheral speed of a rotating object, such as a grinding wheel, the current of the motor driving the grinding wheel is periodically integrated during a deceleration and an acceleration to obtain a composite signal from the integrator which reflects the necessary change in speed due to the decrease in diameter of the grinding wheel, which correction signal is combined with a signal representing a control input for a maximum size and supplied to the controller for the grinding wheel motor.
REFERENCES:
patent: 3704556 (1972-12-01), Nedreski
patent: 3941987 (1976-03-01), Tack, Jr.
Larsson Lars-Goran
Sorensen Frede
Asea AB
Mutter Michael K.
Schaefer Robert K.
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