H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/302
H01H 3/16 (2006.01) H01H 19/18 (2006.01)
Patent
CA 1133036
LEAD SCREW OPERATED LIMIT SWITCH ABSTRACT OF THE DISCLOSURE A limit switch comprises a frame having an elongated extended metallic base, a lead screw shaft supported on the frame and coupled with a drive source for rotation, and a pair of control discs threadably engaged upon the lead screw shaft and restrained from rotation therewith, such that rotation of the lead screw shaft causes the control discs to axially advance along the shaft. Switch assemblies are carried by the base and located in the path of axial advancement of the control discs for operation in response to selective engagement with and disengagement from the control discs. The control discs are individually adjustable along the lead screw shaft, and the switch assemblies are individually adjustable along the base, to thereby permit a wide range of operation for the limit switch.
344784
Birkle Paul G.
Macrae & Co.
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