Electric motor-driven operator

作者: Edmund A Rehwald

DOI:

关键词: Electrical engineeringComputer scienceOperator (computer programming)Control engineeringElectric motor

摘要: This invention relates to a electric motor driven operator for moving device be actuated back and forth through predetermined distance in successive cycles of an which are started under manual control terminated automatically. Such operators usually by...

参考文章(3)
Henricksen Bjarne, Electrically driven dumb waiter, etc. ,(1932)
Buckley Sydney, Motor control and brake mechanism ,(1940)
Milne Gerald, Elevator control mechanism ,(1933)