(under the class definition) Device including a tool or a tool-support combined with means for transmitting rotary effort to the tool from a driving shaft that is coaxial with the tool, the transmitting means including a first part fixed to move with the tool and a second part fixed to move with the driving shaft, the parts being arranged to selectively be connected together, so that rotary effort can selectively be transmitted from the driving shaft to the tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124+, for similar structure wherein the tool-axis and the axis of the driving shaft are not coextensive.
129, for a torque-applying clutch combined with tool-drive means.
