Abstract: An apparatus for the simultaneous shearing of two sides of the boiling water nuclear reactor control rod. The rotation of the rods at 90 degree rotation and the shearing of the second two sides underwater in a nuclear waste storage pool.In a previous application by A. H. Krieg, Ser. No. 692,849, we have seen the crushing of a BWR control rod for the purpose of reducing nuclear radioactive waste. The control rod however has an end referred to as the velocity limiter end, which is round and bulbous. This end can not be crushed practically, due to its mass. The purpose of this invention is to shear or cut-off the velocity limiter from the rest of the control rod thus having the remaining cruciform crushable. Between the velocity limiter and the rest of the control rod are 2 "D" shaped holes, hereafter refered to as the "D" holes. At this point the control rod is solid and does not contain hollow fins or boron rods.

Abstract: A nozzle for use in connection with welding guns to scavenge welding fumes in which a flexible metal hose is provided having an opening along one wall adapted to accept a welding gun. In one embodiment, a collar is attached to the end of the hose which collar carries a plurality of electrically non-conducting screws used to properly position, locate and hold the welding gun within the flexible hose. In another embodiment, a sleeve is provided which is removably mounted to the end of the hose, the sleeve covering the welding tip during use and removable to permit welding tips to be changed without removing the gun from the flexible sleeve.

Abstract: Apparatus for cutting pipe and other objects in which a power saw is pressure fed to and through the pipe or object. The saw is mounted on a shaft and the entire saw and shaft assembly rotated by a power mechanism, such as a clock or coil spring, to feed the saw to and through the pipe.

Abstract: A replaceable hacksaw blade, a reciprocating shaft connected to the hacksaw motor, and a novel clamp for securing the blade to the shaft, the blade and shaft having cooperating abutments for better securing the blade against rotational forces and vibration.

Abstract: A hand-held nibbling tool for sheet metal or other thin material is provided with a reciprocating punch which on its upward stroke moves the metal to be chipped against a readily replaceable cutting die positioned in a die holder attached to the lower end of the tool. The tool is provided with a conventional reciprocating mechanism driven in a known manner by a conventional air or electric motor. The reciprocating punch is connected to the reciprocating mechanism by a piston rod supported for a substantial part of its length in a sleeve within the die holder. The said die holder, moreover, is provided with one or more passages extending upwardly from the die and outwardly of the die holder so as to permit the chips thrown upwardly by the action of the punch against the die to be removed from the nibbling area. The die itself has an internal opening cooperating with the aforesaid passages.

Abstract: A rotary cutting tool is formed in the shape of a wheel in which the spokes extend arcuately and downwardly to a central hub with the lower edge of these spokes having a cutting edge formed thereon or attached thereto. The spokes in addition to extending downwardly in the direction of the workpiece are curved in the vertical direction to form an upwardly slanting surface along which the material sheared off by the cutting edge may ride and be discharged between the spokes. The hub of the tool is connected to a shaft which may be rotated by a hand-held electric drill or similar device.

Abstract: An automatic control means is provided with a pipe cutting and welding apparatus. The control means has a computer which controls the operation of the motors operating the main carriage, the tool heads, and the bracket arms for cutting or welding pipes, plates or the like.

Abstract: An apparatus for cutting welding or otherwise working pipes, plates and the like, in which a tool is mounted for rotatable movement at an angle to the surface of the workpiece. The tool is carried by a carriage which slidably supports a bracket having a first arm and a second arm. Both arms have optical scanners at one end. One scanner senses the angle the carriage is to be rotated around the pipe and the other the amount of rotation of the tool that determines the angle of attack of the tool relative to the work piece. The scanners sense profile curves, drawn to the desired shape of the surface to be cut, determining the linear movement of the tool and the angle of rotation of the tool.

Abstract: A plate having a flat surface for mounting the tool to an irregular or curved work piece is provided. The plate has a plurality of depending legs forming a notch between them for straddling the work piece. Means for fastening the plate to the work piece are also provided.

Abstract: A screw-on jar top having opposing ears formed from jar top side material and protruding above the edge of the top is disclosed, while the seal between the top and the jar is maintained. The ears are shaped to receive a leverage-applying member to permit easier opening of the top when it is tightly screwed on, and to permit stacking of jars without interference from the ears.