Abstract: A bolt and screw repairing tool comprises mainly a main body, a rotating cutting and pressing body, and a positioning cutting and pressing body. The main body comprises a handle, a protruded portion, and a recessed portion. The protruded portion is provided with a through hole and a threaded hole in communication with the through hole. The threaded hole receives a thumbscrew. The protruded portion further comprises a slot. The recessed portion is provided with a receiving hole. The rotating cutting and pressing body comprises a clamping head having a cutting and pressing plate with a triangular edge attached thereto. The rotating cutting and pressing body is received securely in the receiving hole of the recessed portion of main body by means of a shaft which can be rotated to the left and to the right for an angle of 15 degrees respectively.

Abstract: Apparatus for bending pipes, particularly plastic or composite pipes, includes a chucking fixture for anchoring the pipes near the bending region, a bending template, the profile of which is made to fit the pipe cross section, and a bending cylinder which, in turn, has a profile that is made to fit the pipe cross section and is supported by a provided lever which, during a pivoting motion of the bending cylinder, is moved on a graduated circle about the bending template and runs concentrically to the surface of the bending template. In order to achieve easy manipulation, the apparatus is constructed as a manually operated device and parts of the apparatus are disposed on a mounting plate which is provided with a hand lever as a back-stop and which has a pivoted lever in the form of a hand lever for the bending cylinder.

Abstract: A cutting device and method for its operation are utilized to apply variably canted threads to a screw blank. A conventional cutting lathe is provided with a conventional hydraulically operated adjustable cutting support attached thereto. A guide plate is generally mounted upon the lathe adjacent the armature, which is guided therealong to produce a particular pattern in the workpiece. The armature is pivotable to permit cutting at particular angles into the surface of a workpiece. A secondary guide is utilized in producing a controlled variable pivot of the cutting armature during its progression along the body of the workpiece. The secondary guide is rigidly mounted to the adjustable cutting armature and precisely controls its movement during the cutting operation, producing a cutting operation having dual movement characteristics.

Abstract: Single-joint hinge (10) for the pivotable attachment of a door element (12), which comes to rest against a cabinet body, with a hinge (16), which is visible in the closed position of the door element and the door element contact part (20) of which has a press-in pot (38), which can be inserted into a recess (36) machined in the edge region in the back of the door element (12), breaking through to the adjacent edge border of the door element, and in which an offset joint component (sliding piece 44), which can be inserted from the edge border parallel to the flat sides of the door element, is attached and which carries the part of the hinge that is assigned to the door element, in the form of a bearing link (54) accommodating the hinge pin, at the end of a projection (52) that is bent at right angles and is extended to the outside of the door element (12).

Abstract: A mandrel mill for rolling a tubing in a pass between a mandrel bar and a plurality of serially arranged roll stands. Each roll stand has a plurality of pairs of grooved rolls whose grooves are paired to define a part of the pass. The grooves of the rolls of a first roll stand define a hole having a circumference of not more than 1.12 times the outer circumference of a tubing at the exit of the final roll stand. The grooves of the second-stand rolls define a hole having a circumference of not more than 1.06 times that outer circumference, and those of the third-stand rolls define a hole having a circumference of not more than 1.02 times that outer circumference. Thus, the mandrel mill is capable of preventing stripping miss even when the billet is of a high-alloy steel.

Abstract: In the bending in a bending plane of a multiple tube having a plurality of compartments extending side-by-side in the longitudinal direction of the tube, a bending location is moved progressively along the tube and during bending a mandrel is located inside each said compartment at the bending location. To improve control of the tube shape, during at least part of the bending the position of at least one of the mandrels relative to the tube at the bending location varies in dependence on at least one parameter of the bending. At least one of said mandrels may be free to move, under constraint by a resilient force, in the longitudinal direction of the tube.

Abstract: A double-hinged device for a console box of an automobile whose lid can be opened or closed from either lateral side without using a lever or a similar tool. Since the device has a simple construction, it can be assembled easily and manufactured at a reduced cost. Two sets of a number of pivotal members 3 are removably arranged along the lateral edges of a console box main body 1 and two sets of the same number of connectors 4 are arranged at respective corresponding positions of a box lid 2 so that the pairs of pivotal members 3 and the connectors 4 can be releasably and mutually engaged to close the box lid by means of magnetic force or ball stoppers as they are placed in contact with each other. The box lid 2 can be opened simply by pulling upward either lateral edge of the box lid 2 as the pivotal members 3 and the connectors 4 arranged along that edge are mutually separated and the box lid 2 can be swung open around the other lateral edge.

Abstract: This invention relates to an interengaging handle having a first handle member and a second handle member capable of interengagingly receiving the first handle member. A flexible connecting strap is attached to the handle members through longitudinal bores passing the length of the handle members. A connecting strap is passed through the longitudinal bore of the first handle member and is fixed in a position relative to the first handle member by forming a transverse hole through the first handle member that passes through the longitudinal bore and the connecting strap. A rivet is then placed in the transverse hole fixing the connecting strap in position. Stabilizer flanges may also be formed at or near the ends of the first handle member and the second handle member to orient forces directed along the connecting strap downward and outward away from the axis of the handle assembly.

Abstract: A hinge includes a hinge arm mountable on a wall of a furniture unit and at least one hinge pot mounted on a furniture door and rotatably connected to the hinge arm. The hinge pot has a recess into which an inner coupling member may be inserted and in which the latter is releasably anchorable by means of a locking member acted upon by a spring. Provided in one part of either the hinge pot or the coupling member is at least one shoulder which is received with form fit in a recess of the other part. The coupling member may be inserted into the hinge pot in a direction perpendicular or approximately perpendicular to the plane of the door. The locking member, which is mounted tiltably on the coupling member, presses against a nose of a hinge pot wall delimiting the recess.

Abstract: A machine combines metal rod chamfering and stamping operations into a single machining operation. Cutting the chamfer on the end of the rod is accomplished by a rotating cutting tool affixed to a chuck which rotates with a spindle about an axis co-linear with the axis of the workpiece. Both the chuck and the spindle contain a hollow bore along their rotational axes. This bore holds a stamping rod which is free to move axially within the spindle. A stamping impact unit is located at the opposite end of the spindle which acts upon the opposite end of the stamping rod. At the desired moment within the chamfering operation, the stamping rod is hammered into the end face of the workpiece by the impact unit. The imprint end of the stamping rod functions as a mechanical stop to locate the depth the workpiece is inserted into a clamping collet.

Abstract: A wire working machine and system are described with a working platform on which a rotatable mount with individually controllable wire working tool actuators is provided. The rotatable mount surrounds a workzone in which wire is worked with the tool mount being rotatable about the workzone to provide center line working of the wire. The rotatable mount is formed with removable segments each of which can support a tool actuator but can be removed to enlarge the workzone. The workzone extends through the working platform to enable a second rotatable mount located on the opposite side to form workpieces passed through the workzone. The working platform is movable in x and y directions to align with a wire preforming machine to form a wire working system with great versatility, accuracy and improved productivity.

Abstract: A punch is provided for making a screw head with ribs on some of the driver surfaces. The punch includes a slanted groove for providing a rib which is slanted from the screw axis by a small angle between 1.degree. and 10.degree..

Abstract: A portable bending machine has a boxlike casing with an internal support structure fastened to its top plate only. A reinforcing steel rod is bent around a fulcrum roll by a bending roll revolving about the fulcrum axis, while an adjustable abutment on the top plate of the casing bears against the work. The bending roll, the fulcrum roll, the abutment, and a drive mechanism for revolving the bending roll about the fulcrum roll are all mounted, either directly or via the internal support structure, solely to the top plate of the casing. Consequently, all but the top plate of the casing walls can be made thinner than heretofore.

Abstract: The device uses a diaphragm cover between the adapter and the die to lock the die into the adapter. The cover is rotatably mounted onto the adapter and has a polygonal bore that matches the polygonal bore of the adapter. The mandrel of the die has a throat in which the cover sits when the cover is in the locked position. The cover is biased with a spring into the locked position. Stops are provided to limit the movement of the cover between the open and closed positions.

Abstract: The present invention is a process for drawing and forming a bright wire of a predetermined diameter and cross-section, from stock of a greater diameter. It includes the steps of (a) continuously feeding said stock from a supply spool through the process; (b) mechanically removing scale from said stock; (c) applying a coating of lubricant carrier to the descaled stock; (d) applying drying air to the stock with the lubricant carrier thereon; (e) applying a lubricant to the carrier-coated stock; (f) drawing the lubricated stock through one or more pressure dies to decrease the diameter of the stock down to the desired predetermined diameter; (g) buffing the drawn stock with a plurality of buffing wheels, said buffing wheels being applied to the drawn stock at a plurality of angles to the direction of travel of the stock to produce bright wire; and, (h) coiling the resulting bright wire into coils for subsequent use.

Abstract: In production of a lock nut used for fastening in cooperation with a bolt, a tubular material of a polygonal transverse cross section is machined into a crude block integrally made up of an angled main body and a truncated cone having a common, circular cente hole which is then tapped, a series of crude blocks are periodically and intermittently supplied to and registered at a shaping center provided on a holder assembly, each crude block is compressed with a compression mould to deform its tapped hole into a polygonal transverse cross section in the region of its truncated cone, and a lock nut thus produced are delivered out of the shaping center after compression. The process is fully automatized and the deformed transverse cross section of the rapped hole assures halmless, elastic, blanced fastening on a bolt in screw engagement of the lock nut.

Abstract: A coiling point holder for a spring making machine precisely fixes the angular and axial position of the coiling point relative to the holder and allows for the pre-established coiling point positions to be replicated upon reversing or replacing the coiling point. The angular position of the coiling point is fixed by a diametral slot of an insert which is angularly fixed in the holder.

Abstract: A machine and method for continuous thread tapping of threads in fasteners such as nut blanks or the like having a fastener blank advancement mechanism incorporated into a fastener blank holding and guidance assembly. A continuous stream of fastener blanks are fed into and securely held and advanced onto a tap by a modular worm jaw assembly. Fastener blanks are continuously fed into the worm jaw assembly so that a continuous progression of blanks are advanced onto the tap by forward turning of worms rotating within laterally opposed jaws which hold the fastener blanks and prevent them from rotating as they are advanced over the rotating tap. Once the nut blank is advanced over the tap, it is pushed by a progression of successive nuts along the length of the shank which supports the tap to the end of the shank opposite the tap die from which the tapped nuts drop into a receptacle. The worm jaw assembly is of modular construction to facilitate easy removal and replacement.

Abstract: An annular thread cutting die head for a power driven threading machine is comprised of an annular support plate assembly supporting a plurality of radially displaceable threading cutting dies spaced apart about the axis of the die head, and a cam plate assembly coaxial with and pivotal relative to the support plate assembly to radially displace the cutting dies. The cam plate assembly is spring biased to pivot relative to the support plate assembly in the direction to radially retract the cutting dies, and pivoting in the latter direction is controlled by a keeper mounted on the support plate assembly and engaging a keeper track on the cam plate assembly.

Abstract: The present invention relates to a warm rolling facility suited to rolling of brittle strip coils such as high Si steels. The facility is provided with a rolling machine, tension reels disposed respectively at an inlet side and an outlet side of the rolling machine, deflector rolls between each of the tension reels and the rolling machine. The tension reels are positioned in warming furnaces having heating means, and the rolls and the deflector rolls are provided with means for heating the rolls. Further, the rolling machine is provided at its inlet and outlet with heating apparatuses for heating the strip.