(under subclass 58) Wrench or screwdriver wherein the clutching elements include a catch, dog, pawl or similar detent means, so arranged that movement of the handle in one direction will drive the head while movement in the opposite direction permits relative rotation of the head and handle.
(1) Note. These wrenches or screwdrivers are commonly known as "ratchet" wrenches or screwdrivers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29+, for a bit stock provided with ratchet mechanism for driving the bit.
58.4, for wrench or screwdriver wherein a detent-type clutch is positively engaged for driving in both directions of movement of the handle.
59.1, for wrench or screwdriver wherein a ball or roller is wedged between two surfaces to effect driving engagement between the handle and head. SEE OR SEARCH CLASS
408, Cutting by Use of Rotating Axially Moving Tool,
120+, for a ratchet wrench particularly adapted to drive a tool in that class manner.
