(under subclass 365) Subject matter wherein said continuously
rotated shaft is caused to be connected intermittently and temporarily to said force-transmitting member by way of a clutch that is engaged for only a predetermined number of degrees of rotation and disengaged after the predetermined number of degrees of rotation has been transmitted.
(1) Note. A clutch is a mechanism that includes a first element rotatable with a first shaft and a second element rotatable to drive a second shaft. The elements and shafts are rotatable about a common axis, and at least one of the elements is movable relative to the other element into nonslidable engagement therewith. When the elements are in engagement the rotation of the first shaft will be transmitted to the second shaft and when the elements are not in engagement the second shaft will not be rotated by the first shaft. The rotation of the continuously rotating shaft causes rotation of the first shaft, which causes rotation of the second shaft by way of the intermittently engaged elements, and the force-transmitting member is connected to the second shaft to be intermittently driven thereby.