(under subclass 124) Device wherein the tool driving structure includes an annular drum rotatable about an axis and includes an endless, flexible band adapted to be wrapped about the drum to transmit rotary effort from a remote rotating body to the drum by frictional engagement therewith.
(1) Note. Because of the particular relationship of the band and drum of the device in this subclass, it is deemed that a device including a specific drum combined with a band that is
merely implied is proper for placement in this subclass.
