(under subclass 41) Clutches in which the engaging element is a ball or roller.
SEE OR SEARCH THIS CLASS, SUBCLASS:
27, for latch operated clutches in which the transmitting member is a ball or roller.
38, for one-way automatic manually controlled clutches in which the clutching element is a ball or roller.
44, for one-way clutches in which the clutching element is a ball or roller.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism, 162+, for intermittent grip devices.
188, Brakes,
82.84, for one-way brakes in which the engaging element rolls into jamming position between converging surfaces one of which is the rotating element to exert a braking force.