Brake mechanism for telescoping carts

Claim 1

IN A TELESCOPING CART HAVING A FRAME, A BASKET CARRIED BY THE FRAME AND TWO FRONT AND TWO REAR LEGS PROVIDED WITH WHEELS HAVING A RUBBER SURFACE, AN UPPER SPLIT BRACKET AND A LOWER SPLIT BRACKET ON EACH OF SAID REAR LEGS, SAID UPPER AND LOWER SPLIT BRACKETS EACH BEING FORMED OF TWO U-SHAPED MEMBERS, A PIVOT PLATE ON EACH REAR LEG INTEGRAL WITH SAID UPPER BRACKET, A PAIR OF PIVOT PINS ON EACH LOWER SPLIT BRACKET, ONE ON EACH MEMBER OF SAID LOWER BRACKET, A SPLIT YOKE BRACKET PIVOTEDLY MOUNTED ON THE PAIR OF PIVOT PINS ON THE LOWER SPLIT BRACKET, TWO BRAKE PEDALS AND INTEGRAL LEGS PIVOTALLY MOUNTED ONE ON EACH PIVOT PLATE, A COMMON SHAFT FOR SAID BRAKE PEDALS INTEGRAL WITH SAID PEDALS AND EXTENDING THROUGH SAID PIVOT PLATES, AND UPON THE CENTER LINE OF WHICH SHAFT SAID PEDALS PIVOT, A PIVOT BOLT ON EACH SPLIT YOKE BRACKET, A BRAKE ACTUATING LEVER PIVOTED AT ITS LOWER END TO SAID PIVOT BOLT ON THE SPLIT YOKE BRACKET AND PIVOTED AT ITS UPPER END TO A PIVOT ON THE LEG OF SAID BRAKE PEDAL, AND A CUP MEMBER MOUNTED ADJUSTABLY ON EACH SPLIT YOKE BRACKET TO ENGAGE THE RUBBER SURFACE OF THE WHEEL.