Abstract: A pipe-bending machine has a bending table rotatable about an axis of rotation, a bending form having two opposite curved sections each defining a center of curvature, an oblong hole connecting the two centers of curvature, a retaining bolt coaxial with the axis of rotation of the table and projecting above the upper surface of the latter to engage the oblong hole, and means for shifting the bending form from one working position in which one center of curvature coincides with the axis of rotation of the table into another working position in which the other center of curvature coincides with the axis of rotation, and means for arresting the bending form in its selected working position.

Abstract: An apparatus and process is disclosed for forming a cap-like member from a blank of material. The apparatus comprises a die for shaping the cap-like member. A device is provided to co-act with the die for simultaneously forming both the member and internal threads within the member.

Abstract: A method of bending a long metal member of constant cross-section by locally heating a narrow zone on the periphery of said member by means of a heating collar (5) which surrounds said zone, by exerting thrust (2) on one end of the member and by supporting its other end by means of a pivoting arm (3). The temperature of the heated zone on the periphery of the member is kept substantially constant by detecting the temperature of this zone or the size of the gap which separates the heating collar from the periphery of said zone at at least two points around said periphery, one of these points being nearest the center of curvature and the other being on the opposite side to the first.

Abstract: A method for tightening a fastener to yield point wherein areas under a torque-angle curve--each of said areas including a constant abscissa--are successively measured. A decrease of area in a subsequently measured area, indicates that yield point of the fastener has occured. Upon attainment of yield point, the final torque and angular rotation parameters are checked to determine if pre-set values have been realized. The method includes a preliminary torque-angle curve measurement to determine if certain conditions are satisfied; failure to satisfy such conditions, aborts the tightening operation.

Abstract: A pipe bending machine has a pipe feed rate setter. A bending unit has a bending roller and a drive for displacing the bending roller in the plane of bending, and a follow-up roller. The follow-up roller is arranged for engagement with the pipe after the pipe has been subjected to the action of the bending roller and is secured to one arm of a two-arm lever having a pivot axis which intersects the center line of the incoming pipe. The other arm of the lever carries a movable contact of the bending roller drive. The contact alternately engages two stationary contacts of the drive.

Abstract: A ring-shaped mold of the split mold type constructed by assembling into an annular shape a plurality of sectorial separate blocks formed by cutting a ring-shaped workpiece haveing a mold surface on the annular circumference thereof, and the method and apparatus for making the same are disclosed. Sector lines interfacing adjoining the separate blocks on the mold surface intersect the circumference of the ring-shaped mold at angles not perpendicular to said circumference.

Abstract: Guiding catheter assembly having a first tubular member formed of a material which has a low coefficient of friction and a second tubular member encasing said first tubular member so that the first tubular member fits tightly within said second tubular member. The second tubular member is formed of an irradiated modified polyolefin which is flexible but which has a greater rigidity than the said first tubular member so as to provide the guiding catheter assembly with the desired rigidity to permit manuevering of the same. The combined first and second tubular members have proximal and distal ends with the distal ends having a bend therein permitting engagement in a vascular structure. A fitting is mounted on the proximal ends through which a dilating catheter assembly can be inserted into the guiding catheter assembly.Dilating catheter assembly having first and second tubular members formed of a flexible irradiated modified polyolefin. The first tubular member is encased within said second tubular member.

Abstract: A drawing and ironing process is disclosed for making unitary can bodies from blackplate, or non-tinned steel, utilizing a novel composition comprising finely-divided molybdenum disulfide, an acrylic ester/acrylic acid polymer and a polyethylene or similar wax, in an aqueous medium.

Abstract: The tap comprises a groove forming portion (1) with a shank (2) having a thread forming portion (3) such that the thread pitch thereof is equal to that of the groove forming portion (1), the crests of the thread forming portion (3) being axially displaced from those of the groove forming portion (1). The thread forming portion (3) is threadedly positioned behind the groove forming portion (1) for axial movement on the shank (2), the movement thereof being limited by a stop (4) arranged on the shank.

Abstract: This invention relates to improvements in foundry procedures, particularly in-process and post process inspection with electro-optical sensor units. Principally addressed are: inspection of molds and cores to assure correctness and control procedures to abort pouring if the molds are not correct, inspection of cores on the core line, inspection of patterns for sticking sand, inspection of finished castings for extraneous material in passages, excessive or inadequate stock, correct locator relationships, etc., and control of robotic flash grinders.Both fixed and programmably moveable sensors are shown in the context of these embodiments.

Abstract: A fixture for supporting a sleeve and induction coil which encircles the sleeve to facilitate removal and replacement of shrunk-on sleeves on a shaft, the fixture having upper and lower portions electrically insulated from each other and standoff insulated studs and pads which support the sleeve and induction coil within the fixture to minimize circulating currents in the fixture and heating of the fixture.

Abstract: A method for removing and replacing shrunk-on sleeves on a shaft utilizing a fixture having upper and lower portions electrically insulated from each other and stand off insulated studs and pads which support the sleeve and induction coil within the fixture, the fixture having insulated parts which minimize circulating currents in the fixture that would result in heating of the fixture.

Abstract: There is disclosed a novel apparatus and process for nesting a plurality of drum bodies or shells of deformable material wherein a cylindrically-shaped drum body is subjected to a force in a plane substantially parallel to the axis of the drum body to deform the drum body to the extent necessary to permit the positioning of a second drum body about the initially deformed drum body whereupon the deforming procedure is repeated for the nested first and second drum bodies, and is thereafter again repeated until a desired number of drum shells are contained in the resulting nested assemblage of drum bodies or shells.

Abstract: An apparatus invention relates to an apparatus for pulling transverse fins onto a plurality of pipes which are arranged fixed in position alongside of each other by means of carriers the ends of which are operatively supported on respective endless carrier-conveyor chains between a working position engaging the fin plates and a disengagement position releasing the fin plates, the carrier being provided with at least one support foot which holds the carrier in the working position. The support foot is supported on support members of a control device which holds the carriers in the working position on the transport path until release of the transverse fins and releases them for swinging depending on the fin spacing and the transverse fins which have already been pulled-on, the point of release moving in a direction opposite the direction of movement of the carrier conveyor chains.

Abstract: An improved sheet steel suitable for the production of containers and the like has a thin composite coating of nickel and zinc plated on both sides thereof. The steel substrate may be flat rolled blackplate and the composite nickel-zinc coating may be plated thereon by drawing a running length or strip of the steel through a nickel electroplating bath to which has been added the necessary concentration of zinc, and electrodepositing the two coating metals simultaneously and in the desired proportions. The coated steel sheet is particularly useful in forming drawn and ironed cans although it may be used for other purposes.

Abstract: In a process for drawing wire through the nib of a die comprising lubricating the wire with a dry soap and drawing the lubricated wire through the nib in such a manner that a film of soap is formed on the surface of the nib, the improvement comprising maintaining the working surface of the nib at a temperature lower than that of the melting point of the soap whereby that portion of the film immediately adjacent to the surface of the nib solidifies, and a die therefor.

Abstract: A strip-guide assembly for a metal-strip coiler comprises a pressing roll or guide plate adapted to urge the strip into a coiled condition on a mandrel is provided with a four-pivot linkage actuated by a pneumatic/hydraulic positioning device. According to the invention, the latter device comprises a limited stroke pneumatic cylinder having a plunger portion which forms a cylinder for the hydraulically displaced piston whose rod is connected to the linkage, the pneumatic and hydraulic cylinders being independently pressurizable.

Abstract: A threading device comprises a longitudinally adjustable, C-shaped frame configured with mounting heads at its open ends, the heads being arranged to interchangeably mount a collet for supporting a rod or pipe to be threaded and a threaded die guide shaft mounting a thread cutting die, the pipe or rod and the die guide shaft being secured by set screws so that their confronting ends are in aligned abutment with each other intermediate said mounting heads. Rotation of the threading die on the guide shaft moves the die onto the pipe or rod to form precisely arranged threads on the latter.

Abstract: A method of making a carrier for rivets or similar articles which includes the steps of guiding a strip of pliable resiliently deformable material to pass an apertured die sequentially driving a number of rivets to the strip with a striker to cause part of the strip to be deformed and stretched into the die and to punch a hole through the strip into which the rivet is driven and held frictionally, with drawing the striker and the die from the rivet and advancing the strip to receive the next rivet.

Abstract: To facilitate crimping, electrical crimp contacts comprising metal members and insulating members are manufactured in strip form. In a single injection molding operation, the insulating members are formed and attached to the metal members, and the insulating members are interconnected by integrally molding members. The latter may extend beyond the ends of the strip of contacts, so that such strips can be joined together.