Abstract: A router machine for making repetitive router cuts at predetermined positions on one or two workpieces. The router machine has a free standing main frame with an open work horizontal platform for supporting said one or two workpieces. The platform has a longitudinal front edge with a fence therealong. Clamping mechanisms for clamping the one or two workpieces at the predetermined positions. A workpiece feed mechanism for advancing the one or two workpieces to each of the predetermine positions. A pair of routers are provided having vertically oriented, opposed, coaxial bits. A movable support assembly supports the routers. The routers are shiftable vertically on the support assembly toward each other to an extended cutting position and away from each other to a retracted non-cutting position.

Abstract: A three member longitudinally slidable irrigation pipe gate for opening and closing an outlet port in a cylindrical irrigation pipe. The gate includes a base member slidingly abutting the inside wall surface of the irrigation pipe, a cover member slidingly abutting the outside wall surface of the pipe, and a U-shaped resilient spring disjointed from the base and cover members and securing them together to form an integral pipe gate structure. The spring is constructed from a resilient glass fiber filled acetal plastic to facilitate disassembly and repair of the pipe gate.

Abstract: An air-powered, self-feeding screw driving tool and screw-containing pods capable of being assembled into a continuous belt of screw-containing pods for use with the tool. The belt of screw-containing pods are coiled within a canister for selective feeding therefrom by an air-powered pawl operated star wheel. The pods are sequentially positioned forward of the bit of a carriage mounted air-powered screwdriver which is selectively operated in coordinated relationship with the orientation of the screw-containing pods by a common air source utilizing a single trigger control.Each of the screw-containing pods has means therein to retain a screw and to guide the screw as it is being driven into the workpiece.

Abstract: An air-powered, self-feeding screw driving tool and screw-containing pods capable of being assembled into a continuous belt of screw-containing rods for use with the tool. The belt of screw-containing pods are coiled within a canister for selective feeding therefrom by an air-powered pawl operated star wheel. The pods are sequentially positioned forward of the bit of a carriage mounted air-powered screwdriver which is selectively operated in coordinated relationship with the orientation of the screw-containing pods by a common air source utilizing a single trigger control.Each of the screw-containing pods has means therein to retain a screw and to guide the screw as it is being driven into the workpiece.