H - Electricity – 02 – B
Patent
H - Electricity
02
B
306/275
H02B 11/00 (2006.01) H02B 11/133 (2006.01)
Patent
CA 1154062
41DA-6040 ELECTRICAL SWITCHBOARD HAVING IMPROVED DRAWOUT APPARATUS ABSTRACT OF THE DISCLOSURE An electrical device is supported on rails for racking movement between disengaged and engaged posi- tions through an intermediate test position. The device mounts a single lead screw centrally located between the rearwardly extending device line and load terminal disconnects for threaded engagement with a caged nut fixedly mounted at a central location be- tween the switchboard line and load terminal dis- connects. A chain and sprocket drive train mounted by the device communicates rotational drive to the lead screw from a manual drive input applied at the front of the device to motivate racking movement between the disengaged and engaged positions. Inter- locks are included to insure the device is off while the device and switchboard disconnects are being matet and unmated incident with this racking move- ment.
382439
Olashaw William F.
Postlethwait James H.
Tillson Robert S.
Company General Electric
Eckersley Raymond A.
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