148603 ⎘
Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes
Sub-classes:Door Operator Having Lock Mechanism
#2Gear protection subassembly
#3Door operator having lock mechanism
#4Braking device
#5Speed limited wheel
#6Brake Shoe of a Drum Brake, Brake Shoe Set, and Drum Brake