Disk brake

Claim 1

A DISK BRAKE COMPRISING A ROTATABLY BRAKE DISK; A RELATIVELY STATIONARY SUPPORT EXTENDING ALONG OPPOSITE SIDES OF SAID DISK; A PAIR OF BRAKE SHOES MOVABLY MOUNTED ON SAID SUPPORT FOR DISPLACEMENT TOWARD SAID DISK ON OPPOSITE SIDES THEREOF BUT IN A COMMON ZONE IN THE ROTATION PATH OF SAID DISK; GUIDE MEANS FOR EACH OF SAID BRAKE SHOES DEFINING THEREOF A RESPECTIVE GUIDE PATH INCLINED TO SAID DISK IN THE DIRECTION OF DISPLACEMENT THEREOF, SAID PATHS INCLUDING AN ANGLE OF LESS THAN 180* BETWEEN THEM; AN ACTUATING LEVER PIVOTALLY MOUNTED ON SAID SUPPORT FOR ANGULAR DISPLACEMENT IN A PLANE TRANSVERSE TO SAID DISK ABOUT A PIVOTAL AXIS FIXED WITH RESPECT TO THE LATTER, SAID LEVER HAVING A FIRST FORMATION RIGID WITH SAID LEVER AND IN ENGAGEMENT WITH ONE OF SAID BRAKE SHOSES FOR URGING IT TOWARD SAID DISK UPON DISPLACEMENT OF SAID LEVER; AND A YOKE SHIFTABLE WITH RESPECT TO SAID SUPPORT IN A PATH INCLINED TO SAID DISK, SAID YOKE BRIDGING THE OPPOSITE SIDES OF SAID DISK WHILE ENGAGING THE OTHER OF SAID BRAKE SHOES, SAID AXIS BEING OFFSET FROM THE PATH OF SAID YOKE BUT PARALLEL THERETO SAID LEVER HAVING A SECOND FORMATION RIGID WITH SAID LEVER AND ENGAGING SAID YOKE FOR DISPLACING THE SAME IN A DIRECTION OF TRAVEL ATHWART THAT OF SAID FIRST ONE OF SAID BRAKE SHOES TO URGE SAID OTHER OF SAID BRAKE SHOES TOWARD SAID DISK, SAID SECOND FORMATION BEING ANGULARLY OFFSET ABOUT THE PIVOTAL AXIS OF SAID ACTUATING LEVER FROM SAID FIRST FORMATION BY AN ANGLE LESS THAN 180*.