Abstract: A brake and wheel assembly for vehicles having small diameter wheels and heavy axle loading requiring high capacity braking is disclosed. An axle extension shaft cantilevered transversely on a vehicle frame mounts rotatably a dual wheel hub which also serves as a brake rotor in coaction with a pair of wide brake shoes. A mounting unit for brake mechanism including a rigid backbone member is cantilevered from the vehicle frame across the axis of the axle extension shaft and brake rotor. The backbone member locates and supports front and rear brake cylinder bodies and associated anchor pins for the brake shoes and also supports a brake shoe upper guide. Brake shoe hold-down bases and other components are attached to a back plate of the brake mechanism mounting unit which also includes a side cover. A mechanical parking and emergency brake is included in the assembly along with required brake adjustment features.

Abstract: A highly maneuverable, compact and versatile working vehicle features a tricycle chassis having a single rear steering and traction wheel. The vehicle may be electrically powered. It possesses a low elevation hitching mechanism for engaging various types of automotive vehicles requiring hoisting and towing in tight quarters and at various angles. Cooperating with the hitching mechanism is an upper lifting boom and associated power winch means enabling the lifting of an automobile at one end to an adequate height for towing. The coacting hitch and hoisting means can transfer the load of the hoisted vehicle to the safest and most advantageous towing position on the working vehicle to minimize tipping. A unique hoisting boom extension is provided which imparts to the working vehicle a number of additional capabilities. Ease and convenience of operation and manipulation of components are provided for.