Abstract: There are disclosed a method and device for tightening bolts, characterized by including drive means, detection means and control means whereby a bolt (or nut) is turned at high speed until it comes in contact with the tightening bearing surface of a member to be clamped (such as a plate), whereupon it is turned at low speed through a predetermined angle until it is stopped at a predetermined tightening completion position.

Abstract: Apparatus for guiding and coiling one or more metallic strands that are continuously advancing along their length from a casting apparatus. A coiling apparatus has an open-top coil-collecting basket with concentric, generally cylindrical inner and outer walls. A rotating cone is disposed over the inner wall. At least one boom and a set of opposed rolls and associated fairing assemblies mounted on the boom guide the strand from the casting apparatus to the coiling apparatus. An exit end of the boom directs each strand vertically downward onto the cone of one coiler. Friction between the strand and the cone lays the strand in the basket in horizontal wraps without a reversal of the laying direction or kinks. The boom exit end mounts a straightener that includes a pair of hydraulically-actuated slide bars that are orthogonal to each other and to the strand. The slide bars produce a cyclic deflection of the strand about the center of the cone to form a uniform, non-tangled coil.

Abstract: A male screw thread-formed member such as an insert having a thread cutting action has an exterior peripheral portion of substantially full V-thread form along which two or more angularly spaced apart flutes extend from one or both ends of the member, the member being provided with at least one non-helical rib initially of generally annular peripheral V-form at one or both ends thereof and on which is formed a varying reduced V-thread form which follows a helix corresponding to that of the full thread form whereby pointed cutting formations providing peaks of different radial heights and with some of them of offset disposition relative to the helix are formed on the or each rib at the flutes for effecting a distributed thread cutting action thereat, e.g., for use in thermo-setting plastic material.

Abstract: The present invention relates to an improved method for economically manufacturing lobular internally and externally threaded self-tapping inserts. The method is characterized by the novel application of a conventional roll forming apparatus of the type including two cylindrical driven thread forming dies in combination with a specially configured lobular elongated stock material, resulting in the provision of a multiplicity of longitudinally spaced-apart, externally threaded increments which may thereafter sequentially be drilled, tapped and severed from the stock material.

Abstract: Mechanism for effecting the fine adjustment of punch holders in a header or the like, which mechanism can be actuated from a readily accessible position on the machine, remote from the punch holder, and the mechanism being either entirely mechanical or partially hydraulic; supplemented by an alternative lock-up mechanism for use with punch holder studs for remote release of the holders to permit fine adjustment.

Abstract: An improved tool for wrapping wire around an electrical terminal to make an electrical connection. The tool includes a bit and a sleeve for receiving the bit. One end of the bit has a connecting member for coupling the bit to the chuck of a hand-held drive motor. The opposite end of the bit is provided with a tip having a recess axially aligned with an axially extending groove formed in one side of the main body of the bit. A discontinuity between the recess and the groove is defined by a ridge having a pair of relatively convergent edges which extend toward the axis of the bit and terminate at a notch axially aligned with the bottom of the groove in the bit body. A crescent shaped projection extends axially outwardly from one side of the tip to wrap the end of the wire against the terminal at the end of a wire wrapping tool.

Abstract: A clinch tool and method for clamping a grid frame to a coil in which a clinch component is fed automatically into a space formed by the tool between the grid frame and coil with the clinch component saddled in position on the grid frame to be bent to retain the coil in a locked condition to the grid frame.

Abstract: An improved wash water supplying drive head and scraper and cutter assembly for use on an apparatus that sequentially receives tubular members such as oil well tubing, with each tubular member when in position on the apparatus being straightened, having rust and foreign material removed from the exterior surface, scale and other foreign material removed from the interior thereof, and the tubular member being hydraulically tested at a predetermined elevated pressure prior to being removed from the apparatus.

Abstract: The invention relates to an automatic control device for a bending machine for use in the production of loops of bar or wire material for concrete reinforcement. The device includes a preselector for preselecting the type of loop required and determines the sense of direction and amount of bending required in that loop-type. Additionally, a selector is provided for selecting the length of each side of the loop of the type selected by the loop-type preselector.

Abstract: A method for winding a spiral coil involving the steps of winding a metal band on a mandrel while in advance of the mandrel continuously forming a succession of regularly-spaced deformations in the band edges which protrude alternately from the opposite band surfaces to space the coil turns. During the winding, and for each successive turn, the sequence of deformations is shifted along the band, in one direction or the opposite, by a predetermined dimension such that oppositely-protruding deformations on adjacent turns come into tangential locking engagement with each other at the start of every succeeding turn and all projections on each turn come into such locking engagement. Apparatus for performing the method is also disclosed.

Abstract: An improved hammer used in the first step of a two-step method for forming an undercut fastener driving slot in the head of a fastener, such as a screw or bolt, that results in an arcuate, recessed high-torque driving slot with undercut slot sidewalls where each sidewall has a noncontinuous sphericity interrupted by an inverted and generally triangular planar surface.

Abstract: A barrel nut particularly adapted for high strength applications, and method of manufacture which results in a great cost reduction as compared with the prior art. The barrel nut comprises a semi-cylindrical barrel element having a recess for the nut element, the recess having side as well as end walls. The side walls are pierced and the nut element has ears extending into these openings for retention purposes. The method of manufacture comprises forming a cylindrical slug, forming the slug into the recessed barrel shape, drilling the bolt opening, piercing the side walls of the recess, placing the nut element in the recess, and crimping the side walls inwardly to retain the nut element ears.

Abstract: A spirally wound element comprising opposite polarity plates and interleaved separator is described, for use in electrochemical cylindrical configured cells. The cell pack has a uniform predetermined cross section irrespective of variation in component thickness as long as such thicknesses are within specified tolerances. A dual head, belt-driven winder and method are also described for producing the spiral cell pack.

Abstract: Disclosed is a power tool of pen hold type which comprises, within a substantially tubular case having a tip tapered end, a prime mover, a power transmission mechanism connected to the prime mover, a clutch mechanism connected to the power transmission mechanism, a driven section connected to the clutch mechanism when it is made "on", a collet extending from the driven section axially of the case and exteriorly of the tip tapered end thereof, an index mechanism, a switch operating mechanism, and a power input switch, and in which when an operator depresses the switch operating mechanism with his finger while holding the case just as he holds a writing pen with his hand, the switch is closed and simultaneously the index mechanism is brought to a disengaged condition to permit the clutch mechanism to be brought to an engaged condition to permit a transmission of a rotation force from the prime mover to the collet to make the power tool ready for application to operations, and in which when the operator releases

Abstract: An automatic piercing nut assembling arrangement mounted at a ram of a press together with ordinary stamping dies and/or other assembling arrangements of the same type. A device is provided for temporarily suspending an automatic supply of piercing nuts to the assembling arrangement when it is necessary to suspend the operation of the press ram and/or press due to working conditions in the other devices on the press ram and/or the press. The device is effective so as to cause a punch of the automatic piercing nut assembling arrangement to physically block the piercing nuts so as to prevent the piercing nuts from entering a feed path of the punch.

Abstract: A forging compound particularly adapted for hot die dwell forging of titanium and its alloys comprises boundary layer particles (boron nitride or graphite) and a major quantity (more than 60% by weight) of vitreous components. The vitreous components comprise diboron trioxide and silica frit containing a metal oxide wetting agent. In a preferred form, the forging lubricant comprises about 14 to 25% by weight boron nitride particles, balance, vitreous components. The latter comprise about 60% to 75% by weight diboron trioxide, balance silica glass containing cobalt oxide wetting agent in an amount of 1.0 to 3% by weight of the vitreous components. All the foregoing ingredients may be dispersed in a coatable carrier preferably comprising a solvent, e.g., xylene, in which a resin binder is dissolved.

Abstract: A method according to the present invention comprises the formation of metallic materials by translating metal wire between working tools, that is, a striker and an anvil, which are arranged in a closed space with a medium inert to both the wire metal and material of the tools. The wire is then heated to a temperature high enough for plastic deformation of the metal, while ultrasonic vibrations are simultaneously applied to the working tools, propagating at an angle to the longitudinal axis of the wire. An apparatus for carrying out the proposed method comprises, in addition to the working tools, sources of ultrasonic vibrations which are rigidly coupled to the tools, and a mechanism for heating the working tools and wire.

Abstract: A method for processing steel strip, which comprises cold-rolling the steel strip, coiling the rolled steel strip and annealing the coiled steel strip, wherein a rolling oil emulsion containing 0.1 to 5 percent by weight of SiO.sub.2 in the form of stabilized silicic acid sol and having a pH value between 5.0 and 9.0 is applied to the steel strip prior to coiling and the rolling oil emulsion so employed.

Abstract: A punch for forming a screw head is provided with grooves which will form projections on selected of the driver-engageable surfaces of the head. The projections are arranged to interlock with surfaces and edges of the driver to reduce the tendency for the driver to slip out of the recess during driving and also to provide a temporary stick-fit between the driver and the recess.

Abstract: A process and a machine for bending elongated articles wherein the article is led progressively past a heating device heating a small band of the article, the bending taking place in said band, wherein for controlling the thickness of a wall portion lying in the bend one measures the longitudinal speed of said still unbent wall portion before this reaches the heating device and likewise the speed after this wall portion has passed the heating device, and adjusts the distribution of the temperature in the heating zone of the band by changing the heating pattern in dependence on the relation between said two speeds.