Abstract: The invention relates to a machine for bending a profile in two bending directions, that comprises a bending tool including at least two clamping forms (19) centered on the profile bending axis and having the shape of disks having planar junction surfaces (19a) extending in planes perpendicular to said bending axis, in which are formed two rectilinear grooves (20b, 21b) and a peripheral rebate (22b) extending between said grooves and profiled as a continuation thereof, the grooves and the rebate being adapted so that, in the joined position of the junction surfaces (19a) of two clamping foams, the joined grooves define two clamping ducts of a profile and the joined rebates define a profile-winding bearing surface extending between said clamping ducts.

Abstract: A method for detecting a foreign particle trapped between substrates of a liquid crystal display panel, by which a potential short caused by the particle can be made into a short with reliability, and thus it is possible to make a display defect manifest itself that is caused by the particle. The method is for detecting the presence of a foreign particle trapped between flexible substrates (21, 26) of a liquid crystal display panel (20), between the substrates liquid crystals filled, and the method includes making the panel pass between supporting rollers (3) arranged to support one surface of the panel, and a pressing roller (4) disposed at a position opposed to a space between the supporting units and arranged to press the other surface of the panel, bending the panel, and displacing the substrates with respect to each other in their surface directions.

Abstract: Measurement of a mechanical characteristic of a long metallic product. The long product is passed through at least one turn of an electromagnetic coil energized with a variable current, the impedance of the electromagnetic coil is measured continuously and the mechanical characteristic of the long product or variations therein are determined by comparing the measured impedance with at least one predetermined impedance value. The method can be used in particular to regulate the production of hyperquenched austenitic steel spring wire containing martensite (.alpha.') by drawing the wire through successive dies. The impedance of the coil through which the wire passes when it leaves the die is measured in order to regulate at least one of the following parameters: the temperature of the die and the wire and the wire speed.

Abstract: A machine for bending or cambering a profile has two bending rollers mounted on a tool holder carriage, a block for supporting the tool holder carriage with respect to which the latter is pivotably mounted about a rotational axis coaxial with the axis of one of the bending rollers, the supporting block being pivotably mounted with respect to the frame of the machine about a rotational axis coaxial with the axis of the other bending roller; with the ability to rotationally lock either the tool carriage holder to the supporting block or the supporting block to the frame, and the ability to pivot in reverse directions the tool holder carriage/supporting block assembly or the tool holder carriage.

Abstract: For the purpose of making it possible to estimate the spring back angle and/or final driving position of the driving die with good accuracy even if there are some variations from lot to lot in the material characteristics values, and thereby achieve bending with extremely high angle accuracy, the actual bending angle is directed at no less than two provisional driving positions of the driving die during the bending of a workpiece. Based on the relationship of the amount of change in the driving amount to the amount of change in the actual bending angle relating to those provisional driving positions, a determination is made of the relationship of the spring back angle to the target bending angle of the workpiece for the respective working conditions of the bending concerned which are stored in advance. From this relationship, a determination is made for the final driving position of the driving die, and the driving die is driven to that determined final driving position.

Abstract: A hydraulic axial piston machine, such as a high-pressure water discharge pump, may include a first subassembly having a plurality of cylinder-piston units arranged at a distance from, and either parallel to or at an acute angle to, a central axis. The cylinder-piston units may be circumferentially offset, relative to each other, around the central axis by a predetermined angle. The hydraulic axial discharge pump may also include a second subassembly which may be coaxially positioned and arranged for rotation around the central axis on a drive shaft and which may have a force-transmitting connection with the cylinder-piston units to receive oscillating drive forces of the cylinder-piston units. The drive shaft, which may include at least two rotationally coupled longitudinal sections, may extend coaxially to the central axis from its drive input end through at least one of a corresponding central opening of the first subassembly and of the housing to a head-subassembly.

Abstract: A method of permanently bending a first part of a subject body having non-linear elastic properties about a bending line to a desired angle relative to a second part of the body in which a first set of data is produced from similar bodies of the amount of permanent bending obtained as a function of different amounts of angular displacement of the first part, the first part of a subject body is permanently bent to a first angle different from said desired angle by angularly displacing the subject body's first part by an amount determined by the first set of data and thereafter the first part of the subject body is further angularly displaced from the first angle to permanently bend its first part to the desired angle.

Abstract: In the process for the cold forming of ferrous and nonferrous metal sections, pretensioning is applied to the initially essentially straight metal section, which is clamped at both ends. Next, the tensioned metal section is bent in a rotating bending tool. In order to achieve three-dimensional forming of the metal section, the bending tool effects a controlled movement in all three spatial axes, whereby the metal section is pressed, with a backlash-free guide system, at least in the forming region against the bending tool and guided by positive engagement.

Abstract: A method and apparatus for bending a heat exchanger coil, and particularly a fin-on-tube coil, is provided which reduce pressure on the coil at a bending location to prevent damage to the fins and coil by effecting relative movement between a support bed for the coil, defining a coil plane, and a rotating mandrel, in a direction perpendicular to the coil plane during approximately the first 10.degree. of rotation of the mandrel. Such relative movement can be accomplished by either moving the support bed or by moving the rotational axis of the mandrel.

Abstract: Apparatus for bending rigid extruded thermoplastic resin shapes without significant deformation of the cross-sectional configuration of the shape is described.The bending apparatus includes a rigid die member which has a convex die surface configured to mate intimately with a portion of the cross-sectional configuration of the shape to be bent prior to and during the bending process. The convex die surface defines the desired curve to which the shape is to be bent. A flexible die is configured to mate intimately with substantially the remainder of the cross-sectional configuration of the shape. Heating fluid passages are provided through both the rigid and flexible dies for application of a heating fluid, preferably saturated steam where the shape is made of rigid vinyl, directly to the shape for conditioning of the shape for bending.