Caliper-type disc brake

Claim 1

A BRAKE COMPRISING A ROTOR HAVING TWO ANNULAR BRAKING SURFACES ONE AT EACH SIDE OF SAID ROTOR, A FIXED SUPPORT MEMBER LOCATED SOLELY ON ONE SIDE OF SAID ROTOR, SAID SUPPORT MEMBER COMPRISING CIRCUMFERENTIALLY SPACED GENERALLY FLAT PLATE PORTIONS GENERALLY PARALLEL TO SAID BRAKING SURFACES EACH HAVING AN EDGE DEFINING AN ANCHORING ABUTMENT SURFACE, TWO CIRCUMFERENTIALLY SPACED BRACKETS STRADDLING THE OUTER PERIPHERY OF SAID ROTOR AND PROVIDING ANCHORING ABUTMENT SURFACES THEREON DISPOSED OPPOSITE OF A RESPECTIVE ONE OF SAID SUPPORT MEMBER ANCHORING EDGES FOR ENGAGEMENT THEREWITH, SAID BRACKETS ROCKING ON SAID ANCHORING ABUTMENT SURFACES OF SAID SUPPORT MEMBER ABOUT AN AXIS PARALLEL TO SAID BRAKING SURFACES, A SLOT IN EACH OF SAID BRACKETS, SAID SUPPORT MEMBER HAVING A PROJECTION EXTENDING INTO A RESPECTIVE ONE OF SAID SLOTS, EACH OF SAID SLOTS BEING OVERSIZED RELATIVE TO THEIR RESPECTIVE PROJECTIONS TO ALLOW SLIDING MOVEMENT OF SAID BRACKETS IN A DIRECTION TOWARD AND AWAY FROM SAID BRAKING SURFACES SAND ROCKING MOVEMENT OF SAID BRACKETS ABOUT PERPENDICULAR AXES GENERALLY PARALLEL TO THE PLANE OF SAID ROTOR FRICTION FACES, ACUTATING MEANS HAVING SPREADABLE MEMBERS ONE OF WHICH IS SECURED TO SAID BRACKETS FOR EFFECTING LATERAL DISPLACEMENT THEREOF, AND THE OTHER OF WHICH IS DISPLACEABLE IN A BRAKE APPLYING DIRECTION TOWARD ONE OF SAID ROTOR BRAKING SURFACES, AND TWO FRICTION MEMBERS ONE ONE EACH SIDE OF SAID ROTOR BRAKING SURFACES, ONE OF SAID FRICTION MEMBERS BEING CARRIED BY SAID BRACKETS AND MOVEABLE THEREBY INTO ENGAGEMENT WITH THE OTHER OF SAID ROTOR SURFACES AND THE OTHER OF SAID FRICTION MEMBERS BEING LOCATED BETWEEN SAID BRACKETS AND HAVING SLIDING ENGAGEMENT SURFACES WITH SAID BRACKETS AT ITS OPPOSITE ENDS, SAID OTHER FRICTION MEMBER BEING APPLIED AGAINST SAID ONE ROTOR BRAKING SURFACE BY THE SPREADABLE MEMBER OF SAID ACTUATING MEANS WHICH IS DISPLACEABLE IN A BRAKE APPLYING DIRECTION TOWARDS SAID ROTOR.