| 摘要 |
A twin wheel caster brake device for casters of the type having two wheels mounted on a common axle, with each wheel having a series of inwardly directed circumferential teeth, or wedge-shaped ribs, disposed at the inner side of each wheel forming a series of slots between the adjacent ribs and each rib having a surface projection forming a constriction in each slot for retaining a braking, or locking pin, which is mounted, or formed on a brake pedal that acts as a lever to force the pin into a slot when it is desired to brake the caster.
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