Abstract:
A pair of disc-shaped permanent magnets are held in complementary recesses on opposite sides of an insulating contact block by respective contact arms which carry stationary contacts. Direct current arcs formed when a bridging contact separates from the stationary contacts are driven by the magnets in opposite directions with roots of the arcs moving along respective conductive rims surrounding the magnets.
Abstract:
THE RELAY HAS A CONTACT-OPERATING ARM ASSEMBLY INCLUDING AN ARAMTURE AND AN ADJUSTABLE RETAINING MEANS WHICH RETAINS THE ARAMATURE IN PIVOTAL RELATIONSHIP WITH A MAGNETIZABLE FRAME. THE RETAINING MEANS PERMITS THE CONTACT ARM ASSEMBLY TO BE REMOVED FROM THE FRAME FOR FULL ACCESS TO AN OPERATING COIL OR COILS WITHOUT THE USE OF A TOOL. PROVISION IS MADE FOR READY INTERCHANGE OF DIFFERENT
CONTACT MAKING AND BREAKING DEVICES AND DIFFERENT OPERATING COILS SO THAT THE RELAY CAN BE USED FOR A WIDE VARIETY OF CIRCUIT CONTROLLING FUNCTIONS.