To cut the lag-lead in motor-driven timing devices, the timing circuit has been extended to include a second switch. This is actuated in time with the first but driven directly at a speed x times faster than the first.
Coincident switch closing reduces error in motor-driven timer
1964-12-01
Miscellaneous
No indication
English
Truck timer reduces driver loafing
Engineering Index Backfile | 1944
RAIL VEHICLE MOTOR-DRIVEN DOOR SECURE CLOSING ELECTRONIC CIRCUIT
European Patent Office | 2018
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