Abstract: A device for aiding nailing of nails into and through the top or peak portions of the corrugations of a corrugated sheet of metal such as tin; a slotted metal block with the bottom side thereof configured to closely overlie and fit over and onto the hill portion of a corrugation of a corrugated metal sheet with the side portions of said bottom side being received down in the valley portions of said sheet on each side of the overlaid corrugation hill portion, with means provided in the slot to there receive and hold in place a nail to be driven through the hill portion of the corrugation and into a roof or wall supporting surface therebelow; a device fitting over and engaging, with the base portion thereof, a corrugation of a corrugated metallic sheet, such device receiving and holding a nail therewithin in order to direct the nail not only into and through the top of the corrugation but perferably additionally at a slight angle from vertical.

Abstract: Our lead screw driver comprises a drive head for engaging and driving a complementary driver head portion of a threaded fastener, and a manipulator for positioning the drive head and a fastener engaged therewith for alignment of the same for driving the fastener into a pilot hole at a given location in a workpiece. A motor rotates the drive head and a lead screw arrangement is operatively coupled with the drive head for advancing the same at a given rate corresponding to the thread pitch of the fastener to be driven thereby so as to minimize stresses upon the material of the workpiece during the driving of the fastener. Preferably, a brake is operatively coupled to the manipulator and this brake is selectively actuatable for holding the manipulator against movement of the manipulator means, to hold the fastener aligned with the pilot hole while driving the fastener.

Abstract: The ratcheting screwdriver comprises a handle having a bore and a keyway substantially tangent thereto. In the bore is a gear and in the keyway are a pair of pawls which are movable individually into and out of engagement with the gear. An actuator is provided at the forward end of the handle to move these pawls. A cap operates the actuator.

Abstract: A power tong assembly wherein a safety latch mechanism includes a power part equipped with two outlet side connections, one of which is connected to a control part for controlling the opening cross section of the tank side connection. The power part has a control element in the form of a piston-shaped valve body with equal sized surfaces on both end faces subject to the pressure of the working medium and with a bore running in the direction of the valve body movement. This bore has a conical extension of its inlet flow end. This blocks the direct connection of the supply with the return to the tank.

Abstract: A hand-held combination screwdriver having a plastic handle that receives a reversible round steel driver with a flat blade screwdriver at one end and Phillips driver blades at its other end. An elongated channel or slot with side recesses is formed in the handle and receives both ends of the driver, and the side recesses are shaped to engage and lock the flat blade end of the driver without additional parts. A "U" shaped locking key at the bottom of the channel holds and locks the Phillips end of the driver and also defines a stop for the flat blade end.

Abstract: Striking tools, heads and handles for such tools, and methods of manufacturing them. A tool head according to this invention employs a flange which extends from each side of the head between the forward and rear portions of the head. The portion of the head within the periphery of each flange is generally concave and narrows to form a web extending longitudinally in the striking direction to connect the forward and rear portions. The web may include at least one opening communicating between the two concave surfaces. The flanges increase the cross-sectional area and moment of inertia of the head relative to the striking direction and relative to the handle axis. The resulting head enjoys greater strength and resistance to translational forces, bending moments, deformation and potential failure. Portions of the handle extending through the opening in the head and thereby about portions of the head reduce the possibility that the head will leave the handle as the tool is being swung.

Abstract: An adjustable vise grip is disclosed herein having a pair of lever members joined together adjacent one end by a sliding adjustable lock mechanism carried on one member passing through a slot in the other member. The mechanism includes a spring biased plunger having a stepped end for urging a ball into selected ones of openings provided in the slot on the other member. Jaw portions carried on the extreme ends of said members cooperate to grip a workpiece when pivoted about the lock mechanism.

Abstract: A screwing spindle (1) is mounted on a frame so as to be capable of rotating about its own axis, and also to be capable of up and down movement along its axis. The spindle is rotated by a drive gear (26) via an intermediate gear (24) which is mounted on a shaft (31) which is in turn mounted on a moving support (33) which is resiliently urged towards a rest position by return means (39). The wrench device also includes detector means (45) for detecting movement of said moving support (33). When a desired torque has been reached, the moving support (33) is driven away from its rest position by said drive gear (26), and said movement is detected by said detector means (45), which are arranged to then release the jaws of the spindle.

Abstract: An open-ended ratchet wrench characterized by a handle pivotally carrying a stationary jaw, with a toggle jaw pivotally secured to the latter. The handle includes a cam at the jaw mounting end thereof which presents camming surfaces selectively functional at operative conditions of the wrench. In this regard, one camming surface in combination with the pivotal jaw provides maximum force power during one operative condition, while another cam surface cooperates with the stationary jaw in a stop relationship. A feature of the invention is the ready sliding placement thereof into a workpiece engaging condition, where tightening and untightening of the workpiece is achieved by inverting the wrench 180.degree..

Abstract: A push-on/quick release locking arrangement is mounted on a socket wrench extension or driver having a cylindrical body with a square drive end. An inclined transverse bore in the drive end intersects opposed flat faces of the drive end and lock balls are mounted in the bore for movement between a "lock" position and a "release" position. In the "lock" position one ball projects from the end of the bore nearest the end of the drive end to engage a cooperating cavity in the drive recess of a socket. In the "release" position the balls lie within the cross section of the drive end. There is an axial groove in the flat face intersected by the end of said bore further from the end of the drive end. A cylindrical grip sleeve is mounted for slideable movement on the cylindrical body of the extension. The end of said sleeve remote from the drive end is turned inwardly and an integral control tab projects from the other end of the sleeve.

Abstract: A cleaning and treating apparatus which employs a series of nozzles or guns for propelling abrasives into interior and exterior exposed surfaces of components. The forces required to propel the abrasive materials are provided by fluid pressure supply sources which can be adjusted separately to deliver a wide range of high and low pressures to each individual nozzle outlet. Having available these variably selectable fluid pressure sources at each individual nozzle, combined with means for directing each nozzle relative to the machined component being cleaned or treated, enables this apparatus to perform its intended function without distorting the surfaces upon which the work is being performed. Furthermore, it allows an operator of the unique apparatus to correct any existing surface disconfigurations or otherwise control the shape of the component as desired.

Abstract: Slots are provided in the wrapper of a nuclear steam generator to increase the local flexibility of the wrapper to allow for the difference in thermal expansion between the carbon steel wrapper and the high corrosion resistant alloy tube support members. The radial structural load paths between the tube support members, the wrapper, and the outer shell provided by the radial support means, about which the expansion slots are provided, are not affected by the addition of the expansion slots. Since the slots are preferably provided by means of a high speed industrial laser, they are very thin and do not permit substantial commingling of cooler downcomer water and the boiling mixture in the tube bundle region. The expansion slots may be vertically or horizontally oriented and may be cut into the wrapper on more than one side of the radial support means. The slots may end in small curved portions to decrease stress concentrations and increase fatigue life.

Abstract: The guide comprises a pair of elongated matching bars with nail or screw bores through the mating surfaces thereof. The two bars are normally maintained slightly apart to lift over the heads of nails by compression springs and include rotating cam clamps which can close the strips together against the spring pressure. One embodiment includes end clamps for engaging the opposing edges of a board and the edge of a further board to be nailed at right angles thereto so that the nail positions are correctly located. Lengthwise and width adjustments may be provided in the guide. Another embodiment permits the guide to be slipped under nail heads that have been started in order to support the nail as it is further engaged by the hammer or out from under nail heads having been both started and initially driven. The device may have guide drillings both perpendicular and at an inclined angle to the surface upon which it is engaged.

Abstract: This invention relates to an impulse wrench which has two blades but generates only one impact pulse on the main shaft per one rotation of a liner. In this invention, a liner has at least four seals and a main shaft has at least two seals. And the shape of both or one of the two seals out of at least two seals of main shaft is other than a linear shape parallel to the axial center.If both of said two seals of main shaft are in said shape, two of at least four seals of liner are in the same shape. The other seals of liner are in a linear shape parallel to the axial center.If one of said two seals of main shaft is in said shape, one of at least four seals of liner is in the same shape as this. All of the other seals of liner are in a linear shape parallel to the axial center.In this way, said two seals of liner and said two seals of main shaft coincide with each other only once per one rotation of the liner.

Abstract: An array of connected plates mounted on the inside wall of the vacuum vessel of a magnetic confinement reactor in order to provide a protective surface for energy deposition inside the vessel. All fasteners are concealed and protected beneath the plates, while the plates themselves share common mounting points. The entire array is installed with torqued nuts on threaded studs; provision also exists for thermal expansion by mounting each plate with two of its four mounts captured in an oversize grooved spool. A spool-washer mounting hardware allows one edge of a protective plate to be torqued while the other side remains loose, by simply inverting the spool-washer hardware.

Abstract: A method wherein the position of a workpiece of an NC-controlled machine is determined, and an apparatus which includes at least one center point and a computing unit. The position of the center point is ascertained by a measuring device and the measured value is fed as a signal into the computing unit. Using the computing unit and the measurement signal, the position of the center point and, thus of the workpiece can be determined. The measuring device is associated with a tailstock of the apparatus and is connected to the computing unit. The measuring device is integrated in the apparatus, so that no additional measuring unit is required. It is also not necessary to provide an installation area for such a measuring unit in the region of the workpiece.

Abstract: A honing device has a honing tool for the precision machining of blind-hole bores in a workpiece. The honing tool has a shank, at the free end of which honing strips are arranged. They can be moved radially outwards by means of a spreader rod. In a coolant duct system in the tool, during the machining of the workpiece coolant is supplied to the end of the honing tool facing the workpiece. To return the coolant, there are return ducts which extend along the outer periphery of the honing tool. The honing device also has a coolant feed device which can be aligned with and fixed to the honing tool. The feed and return of the coolant guarantee a precisely defined coolant circulation within the network zone.

Abstract: A screwdriver is provided which engages the head of the screw, and also grips the screw. The screwdriving and gripping assemblage may be readily interchanged with another in the handle of the screwdriver. Opening and closing of gripping jaws is effective by the sliding of an outer sleeve which surrounds another sleeve of which the gripping jaws form a part, and which other sleeve is slidable on the shaft of the screwdriver. The handle comprises a front part and a rear part which are rotatably connected together for rotation of the forward part and of the screwdriver shaft, while the rear part is held fixed.

Abstract: A depth adjusting device for a screwdriver which is adapted to control within predetermined desired limits the depth to which a fastener may be driven into a work. The depth adjusting device comprises a locking ring retentively engaging the tool housing, and an adjusting sleeve axially movably carried by the locking ring. The locking ring has a spiral ridge formed on the inner periphery thereof, and the adjusting sleeve has a spiral groove formed peripherally about the rear portion thereof and engageable with the spiral ridge of the locking ring. The locking ring also has an axial slit formed therein and a pair of lugs formed across the slit. A thumb screw is provided to tighten the lugs and thence to retain the locking ring on the adjusting sleeve.

Abstract: Improvements for ratchet wrenches which allows the socket to be turned without pivoting the handle. The improvements include a flat gear which either fits over the drive stud of the wrench's head and is sandwiched in between the head and a socket snapped on the head or is made integrally with the head. The gear projects beyond the socket and has driven gear teeth about its periphery. This allows for easy hand-turning. A shaft which has a means for turning at one end and a drive gear at the head end is provided. The shaft is mounted for both rotational and axial displacement and may slide from a home position in which the drive gear is free of the the flat gear to a position in which it meshes with that gear. A spring mechanically biases the shaft to its home position. A user may easily push the shaft to its operational position and, while maintaining it there, turn the shaft to turn the flat gear and thus the stud and socket. Upon releasing, the shaft automatically returns to its home position.