Abstract:
An electrical switch comprising a pair of generally parallel spaced blades pivotally mounted on a hinge contact member and rotatably movable to engage a break contact member or jaw which is spaced away from the hinge contact member. A biasing means is mounted on the blades adjacent to the break contact member to bias the blades toward one another.
Abstract:
A high voltage disconnect switch in which the hinged member pivotally supporting the switch blade is composed of aluminum alloy, the sleeve for rotating the blade is composed of copper alloy with copper alloy conductors on opposite sides of the contact surface of the sleeve, and the circuit through the switch passing through the sleeve and conductors rather than through the hinged member.
Abstract:
A GAS-BLAST CIRCUIT INTERRUPTER OF THE PUFFER PISTON TYPE IS PROVIDED HAVING A PAIR OF VENTED SEPARABLE CONTACTS, WHICH MAKE VALVE-CLOSED ENGAGEMENT IN THE CLOSED POSITION. AN OPERATING LINKAGE IS PROVIDED WITH A LOST MOTION MECHANICAL CONNECTION BETWEEN THE PISTON MEANS AND THE MOVING CONTACT, SO THAT GAS PRESSURE IS BUILT UP PRIOR TO CONTACT PART. THE CONTACTS SEPARATE WITHIN AN INSULATING NOZZLE MEMBER, WHICH
GUIDES ALL OF THE GAS FLOW THROUGH BOTH VENTED CONTACTS, WHEN THEY PART DUE TO THE TAKEUP OF THE LOST MOTION.