Electromagnetic miniature relays

Claim 1

AN ELECTRO-MAGNETIC ACTUATOR FOR AN ELECTRICAL RELAY COMPRISING: TWO ENERGIZING COILS EACH HAVING AN APERTURE THROUGH THE CENTER THEREOF; A CORE STRUCTURE HAVING TWO POLE PIECES EXTENDING THROUGH SAID APERTURES AND PROVIDING A MAGNETIC FIELD IN RESPONSE TO THE ENERGIZATION OF SAID COILS, AN ARMATURE MOUNTED BETWEEN SAID POLE PIECES AND ROTATABLE IN RESPONSE TO SAID MAGNETIC FIELD, SAID POLE PIECES EACH HAVING AT ONE END THEREOF A FLAT FACE AND AN ADJOINING FACE CURVED ECCENTRICALLY WITH RESPECT TO THE AXIS OF ROTATION OF SAID ARMATURE; SAID ARMATURE HAVING A HUB WITH TWO PARALLEL ARMS EXTENDING OPPOSITELY THEREFROM, SAID ARMS EACH HAVING A FLAT FACE EXTENDING ADJACENT ONE OF SAID FLAT FACES OF SAID POLE PIECES, SAID HUB HAVING TWO SIDE FACES ABUTTING SAID FLAT FACES OF SAID ARMS AND CURVED ECCENTRICALLY WITH RESPECT TO SAID AXIS SUCH THAT POINTS ON SAID SIDE FACES NEAR SAID ABUTMENT ARE SPACED FURTHER FROM SAID AXIS THAN POINTS ON SAID SIDE FACES REMOTE FROM SAID ABUTMENT, SO THAT SAID FLAT FACE AND SAID CURVED FACE OF EACH OF SAID POLE PIECES ARE SIMULTANEOUSLY CONTACTED BY SAID FLAT FACE OF ONE OF SAID ARMS AND ONE OF SAID SIDE FACES OF SAID HUB; PINS CONNECTED TO AND EXTENDING FROM SAID ARMS OF SAID ARMATURE, AND CONTACT SPRINGS SPACED FROM SAID ARMATURE AND ENGAGED BY SAID PINS IN RESPONSE TO THE ROTATABLE MOVEMENT OF SAID ARMATURE.