Abstract: A brake for restraining movement of rolling carts. Attachable to heavy tool carts as used in machine and auto shops, a mechanical brake of heavy-duty construction uses a spring-biased bolt to hold a brake pad. The brake pad is of sturdy but resiliently flexible material to engage the floor. To engage the brake, a brake set lever is depressed as by stepping on the lever. The brake set lever is pivotably attached to the brake chassis and has mechanical advantage over the spring-biased bolt. The other end of the brake set lever prevents the longer end from flying up when the brake is released. When the brake is engaged, it is held frictionally in place by the spring-biased brake release lever. The bolt shank passes through the brake release lever. The spring-biasing of the bolt causes the brake release lever to more tightly engage the bolt shank to hold the bolt in place. To release the brake, the spring-biasing of the brake release lever is overcome as by stepping on the lever.

Abstract: A brake mechanism is provided with brake pedals that are pivotably attached to opposite sides of a cart, or the like, by hinges and mounting brackets. Each brake pedal includes a downwardly extending leg having a friction foot at a distal end thereof. The brake pedals are pivotable to a braking position whereat the friction feet are frictionally engaged with the ground, thereby anchoring the cart, or the like, in place. One or more crossbars connect the brake pedals so that the pedals pivot in unison. A crossbar is provided which engages the underside of the cart to thereby limit the pivotal travel of the brake pedals. Adjustable length crossbars are preferred so that the dimensions of the brake mechanism can be adjusted for retrofit application with various sized dollies, or the like. A quick release locking device is provided to maintain the brake pedals in the braking position as well as in a freewheeling position.