Abstract: A paper transfer assembly is provided which includes a p reversibly rotatable drive motor, a paper transfer roller for transferring a paper, a first transmission mechanism connected to the paper transfer roller, and a second transmission mechanism separate from the first transmission mechanism. The second transmission mechanism may be used to drive a cutter device for automatically cutting the paper. Alternatively, the second transmission mechanism may be utilized for reversely moving the paper by providing a reversal mechanism for connecting the first transmission mechanism and the second transmission mechanism.

Abstract: The motor-driven hedge clipper has a machine housing; a main handle provided with one switch button; a hollow U-shaped auxiliary handle and a single deadman switch operating mechanism for turning off the hedge clipper when not activated by an operator.

Abstract: A tool for cutting a predetermined molding pattern into a work piece as it is longitudinally advanced. A molding head is adapted to be mounted to the output shaft of a motor. The head is generally-circular and includes at least one arcuate cutout in its peripheral edge for receiving a generally-circular cutter unit. The arcuate cutout is greater than semicircular so that the center of the unit lies within the peripheral edge and is therby protected from radial travel. A bayonet-type fixture and an alognment screw are provided for engaging the cutter unit to the molding head whereby multiple devices protect the operator from violent disengagement of the cutter unit from the head during high speed cutting.

Abstract: A bump cam is provided with a sacrificial force transmitting block disposed between the driver and the tool holder and floatingly coupled to the tool holder whereby lateral loading imposed on the block by the driver is not transmitted to the tool holder.

Abstract: A foldable pocket knife constructed to look like a fine writing pen includes a quick opening blade moved about 180° from the closed to the open position by grasping a pivotally movable portion of the knife handle which moves with the blade as a unit for 180° to open the blade and then continues in its pivotable movement 360° to its original position where its functions, together with a stationary handle portion, as the handle of the knife. The knife blade is closed by moving the moveable portion of the handle in the reverse direction to engage the blade and subsequently move together with the blade as a unit back to the original position adjacent the stationary portion of the handle. Accordingly, the user's hand need not contact the blade in either the opening nor the closing movement thereof.

Abstract: A circular saw includes a table for placing a workpiece thereon, a saw unit having a circular saw blade mounted thereon, and a support mechanism for supporting the saw unit on the table, so that the saw unit is movable in forward and rearward directions. A lock device includes a lock member that is movable between a first position and a second position. In the first position, the lock member permits the saw unit to move in both forward and rearward directions. In the second position, the lock member prevents the saw unit from moving in one of the forward and rearward directions.