Abstract: A tool for bending metal wire hangers such as those used for hanging false ceilings below exposed under floor structures of the type separating successive floors in modern multiple story commercial buildings and in other buildings where a lowered ceiling is desired. The wire bending tool includes a pair of operating handles connected to a gripping jaw having members for holding a wire to be bent. The gripping jaw forms part of a rectangular block to which a third handle is pivotally mounted. The third handle is associated with a roller which cooperates with two corners of the block to bend the wire into two successive right angles as a third handle is pivoted about its axial connection on the rectangular block.

Abstract: A bending-tool carrying a cylindrical bending roller whose diameter is selected depending on the bending radius, this tool carrying a fixing means to secure the tube to be bent in relation to the bending roller, as well as a pressure element movable in relation to said bending roller so as to apply the tube to be bent against the cylindrical bending roller and a tool wherein the pressure element is guided according to an involute curve, in relation to the bending roller.

Abstract: A method for forming cooling coils of successive layers of rectangular configuration, in which the front end of an elongated tube is threaded between rolls of a straightening apparatus and clamped onto the periphery of a rectangular table, whereafter the table is rotated about a central axis while the incoming tube shifted in direction of this axis, and while the tube upstream of the table is held in taught condition by the straightening apparatus so that the tube is wound into a coil of rectangular configuraton about the table. After a coil of predetermined length has thus been wound, the table is stopped, the tube cut between the straightening apparatus and the table and the cut rear end of the tube is also clamped to the table.

Abstract: A rod and wire bending machine including at least one bending unit substantially including a fork member, which guides the wire or rod to be bent, and a disengaged bending pin rotating coaxially about the fork member for the bending of the rod. To obtain the rod-forward/backwardfeed, the fork member lodges a roller, operating in couple with an opposed roller in such a way, that the side edges of the opposed extremities of the fork member project from the roller forming two projecting extremities to cause the rod to move forward and backward between the projecting extremities and its said roller and an opposed one, while the rod is laterally guided by the opposed extremities of the fork member, in order that the bending pin has the capacity to effect bendings about one or the other of the pendants constituted by the two projecting extremities of the fork member.

Abstract: A method and apparatus is disclosed for simultaneously bending a length of handrail channel stock and handrail cap stock in an iron bender with a main frame and a swing frame, which comprises the steps of fitting the channel stock, with a length of flat stock inserted between its flanges, into the recessed underside of the cap stock, and bending the resultant assembly in a bender fitted with appropriately grooved back block, forming die and drawing block.

Abstract: A small size, portable bender operable from a domestically available A.C. source of the order of 100V having the drive shaft turned through the intermediary of a clutch from a motor to perform a bending operation. Bending angle control means is provided to regulate the clutch to discontinue the bending operation at a desired angle.

Abstract: The invention concerns a bending machine for bar or rod material such as reinforcement bars for reinforcing concrete. The machine includes a bending mandrel which is stationary during the bending process and a bending tool which can be pivoted about the mandrel. Directly in front of the bending mandrel in the direction of the feed path of the bar or rod material are positioned two clamping cheeks movable relative to one another in a direction perpendicular to the feed path of the material, the cheeks each including a clamping face substantially parallel with the feed path and a cutting face substantially perpendicular to the respective clamping face, the lines of intersection of these faces forming cutting edges substantially parallel with one another.

Abstract: A bending machine having one or more bending units wherein a former device is movable to clamp a workpiece so that the workpiece can be bent by a bending arm and tool moved arcuately about the former device, and wherein the movement of the former device is reversible to free the bent workpiece from the bending unit.

Abstract: A pipe bending machine comprising a bed plate which mounts a bending head, a mechanism for feeding pipes to be treated into the bending head, and a drive. The pipe feeding mechanism consists of two parallel rows of rollers arranged symmetrically in relation to the pipe axis and fitted into cages used commonly by each row. The rollers in each row and the associated cage are embraced by a hauling chain designed for coupling the drive which moves the chain toward the bending head. Placed on the outside on each chain is a closed-loop strip made of elastic friction material. A pipe to be treated is clamped in the gap between the strips and is fed to the bending head when the chains are displaced.The pipe bending machine of the present invention permits bending the pipes of any shape in space, including parts made of thin-walled and soft metal pipes.

Abstract: A method and apparatus for bending bars, wires, metal strips or the like has been developed. The apparatus consists of a feeding device which feeds the material to be formed to a central fork pin which holds the material. A rotating disc is provided with a nib for bending the material. After the material is bent, the feed of the material is reversed so as to ensure that the material will be sheared close to the bend, thereby reducing waste.

Abstract: A pipe bending apparatus for bending large diameter pipe of either thin or thick walled construction. The pipe bending apparatus includes a bending shoe which is pivotably mounted to a frame member and a follower shoe which is operable with the bending shoe to receive a pipe therebetween for bending. The apparatus also includes a fluid motor which is operable to cause pivotal movement of the bending shoe and a clamping assembly comprising a plurality of rollers which are secured together to clampingly engage the follower shoe and the bending shoe to force them together such that the pipe is forced to conform to the arcuate configuration of the bending shoe as the bending shoe pivots. During such pivotal movement, the rollers of the clamping assembly traverse the arcuate surface of the bending shoe and the rear surface of the follower shoe clamping the pipe between the bending and follower shoe and causing the pipe to assume the configuration of the bending shoe in a rolling mill type operation.

Abstract: A bending head for a tube bending machine which includes a housing, having a through axial passage, mounted in a cantilever fashion on the framework of the machine for forceful rotation about its axis, the tube or billet being pushed through the head along this axis during a bending operation. The free end of the housing has mounted in the passage thereof a pair of support rolls and a pivotable arm, kinematically connected to the drive of the machine through a screw-and-nut couple and a gear, carrying a bending roll. The axes of rotation of the rolls and of the pivoting of the arm are substantially perpendicular to the axis of rotation of the housing. There is mounted in opposition to each support roll and the bending roll a respectively similar additional roll positioned symmetrically with respect to the axis of rotation of the housing.

Abstract: Apparatus for bending a thin flexible and narrow strip having a flat longitudinally extending base portion and a central longitudinally extending rib projecting upwardly from the base portion at right angles thereto, the upper edge of the rib being sharpened, the strip being of the type adapted to be attached to a printing cylinder and used for perforating or shearing paper sheets being printed, the apparatus being adapted to bend the strip at right angles to the base portion thereof to form a predetermined geometric shape, such as a rectangular shape for cutting rectangular windows in the paper sheets. The apparatus comprises a stationary die mounted on a supporting base. The stationary die is provided with a recess at the lower portion thereof extending around the entire periphery and inwardly into the stationary die a distance slightly less than one-half of the width of the base portion of the strip.

Abstract: The mandrel produces curved articles, such as fishing lures, from rod or tubing which have a sloping leading side and a rectilinear, substantially L-shaped side opposite. The mandrel is provided with a suitable, controlled reciprocating turning means which comprises a base and die assembly, a bending assembly, a die hold-down assembly and tensioning means provided between the hold-down assembly and the base and die assembly.