摘要:
A switch actuation device for use in connection with electrical switch mechanism having an actuatable structure. The device includes an actuation mechanism in operable communication with the actuatable structure for use in urging the actuatable structure of the electrical switch mechanism from a first position to a second position. An actuatable electrical switch arrangement is also disclosed.
摘要:
A manual timer switching device has a housing, a program carrier, and a manually rotatable knob. The housing contains a timer switch. The program carrier is rotatably mounted to a front side of the housing, concentric with the housing. The knob is seated coaxially with the program carrier and is rotatable relative to the program carrier to manually control the timer switch via a mechanical connection. The knob has a single ended, bar-shaped operating handle on a front face thereof. The program carrier has a central opening through which the operating handle is seated. The rotating knob can also have a radially extending surface finish or markings near its peripheral circumferential region.
摘要:
A switch actuation device for use in connection with electrical switch mechanism having an actuatable structure. The device includes an actuation mechanism in operable communication with the actuatable structure for use in urging the actuatable structure of the electrical switch mechanism from a first position to a second position. An actuatable electrical switch arrangement is also disclosed.
摘要:
A device for controlling actuation of valves of a liquid treatment apparatus such as a filter or a water conditioning apparatus during the reconditioning operation such as washing the filter apparatus or regenerating the water conditioning apparatus characterized by a compound cam unit having at least two cam surfaces formed by a center member and a segment member which may be relatively rotated and adjusted to simultaneously adjust the length of the two cam surfaces. To rotate the cam unit, a motor drives a pinion which is yieldingly mounted for engagement with a driven gear of the cam unit which driven gear has a cut-out segment for receiving the pinion when the cam unit is in a neutral or service position. To shift the cam unit from the service position into an operating position, the device includes a shifting means which may be a pivoting lever operated by a calendar device or a solenoid engaging a groove on the cam unit when actuated by a sensed signal.
摘要:
Time switch mechanism adapted to actuate a switch either automatically by a clock mechanism at a predetermined time or manually at a desired time. The time switch mechanism has a timer cam actuated by the clock mechanism, a timer lever coupled with the timer cam so as to be actuated by the actuation of the timer cam, a switch lever coupled with the timer lever so as to be actuated by the actuation of the timer lever so that the switch is actuated by the actuation of the switch lever thereby permitting the switch to be actuated automatically by the clock mechanism through the timer cam, timer lever and the switch lever. A manually operable switching cam is provided which is engageable with the timer lever and the switch lever.