Electricity: circuit makers and breakers – Suspended-wire controlled
Patent
1980-02-11
1982-02-02
Shepperd, John W.
Electricity: circuit makers and breakers
Suspended-wire controlled
200 67A, 200 83SA, H01H 1322, H01H 3524
Patent
active
043141226
ABSTRACT:
A control unit having a condition selector, an electrical switch, having an actuator unit provided with an adjustable movement differential a condition responsive device for actuating the switch when the condition responsive device senses certain conditions selected by the selector, and a lever arrangement carried by the unit and being operatively associated with the actuator unit of the switch and the device whereby the device can actuate the switch by the lever arrangement, the lever arrangement having a first adjustable lever operatively interconnected to the selector and acting as a main range lever. The first lever is operatively interconnected to the condition responsive device and to the actuator unit of the switch. The lever arrangement has a second adjustable lever operatively interconnected to the selector for and to the actuator unit of the switch adjusting the movement differential of the actuator unit of the switch.
REFERENCES:
patent: 2783333 (1957-02-01), Witherspoon
patent: 2821588 (1958-01-01), Fisher
patent: 3182150 (1965-05-01), Smith
patent: 3233055 (1966-02-01), Russell
patent: 3718789 (1973-02-01), Hook
patent: 4109121 (1978-08-01), Bauer et al.
Bauer Werner R.
Smith William N.
Robertshaw Controls Company
Shepperd John W.
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