An apparatus for straightening a propeller has an arbor press with two opposed inner surfaces. The opposed surfaces are spaced apart a sufficient distance to allow a propeller to fit between them with one opposed surface extending beyond the second opposed surface. Two pads are mounted on the first inner surface to support the propeller during the straightening procedure. One or both of the pads may be adjustable to more precisely locate the points of pressure that will be applied to the propell...

A system is provided for assuring the straightness of pipes or tubes produced by a continuous seam-welded process. Following sizing, the newly formed continuous tube passes through a straightening unit and a preliminary alignment checker. The alignment checker observes the actual spatial position of the advancing tube, and the straightening unit is adjusted in response to deviations of the observed position from the predetermined desired path to deform the tube so that it conforms to the desired...

Aluminum automobile wheels are straightened by exerting gentle pressure on the wheel to urge the wheel back to its original shape. If the metal does not move under pressure, the wheel is heated, and pressure again exerted, the process continuing until the wheel becomes round. A C-shaped wheel mount carries a spindle which mounts a hub. The hub rigidly receives the wheel, and the hub is selectively rotatable, and the wheel mount is selectively rotatable about a horizontal axis. The wheel is gentl...

A teeth straightening bracket comprises a base plate, a wire support disposed on the base plate, and a wire passage groove formed in the wire support for causing a correcting wire to pass therethrough under sliding movement. At least one of pair of engaging fingers for a binding wire is disposed on both sides of the wire support excepting for both longitudinal ends thereof. Further engaging fingers are preferably disposed on both longitudinal ends of the wire support in perpendicular to the long...

A sheet straightening unit including a device for pushing a depressing roll against an endless belt, so that a curled sheet is straightened when passing between the endless belt and the depressing roll pushed against the latter. The depressing roll is provided with an amount-of-depression adjusting mechanism which includes a cam member and a cam follower member engaged with the former, in such a manner that the cam member is turned according to the kind and image density of the curled sheet, the...

Apparatus is disclosed for straightening the frame of a damaged vehicle and includes a bed on which the damaged vehicle is located during the frame straightening operation. A plurality of towers are mounted on the bed and are adjustably movable in a horizontal direction relative thereto. Some of the primary towers include a pushing and holding mechanism, and a pulling mechanism; while other towers include only a pushing and holding mechanism. The pushing and holding mechanism of a tower is opera...

The invention relates to a straightening device for a car body comprising a straightening table and therein sill fasteners or the like, from which the vehicle can be fixed to the straightening table. The straightening table can be lifted by means of a lifting device into a desired repair position. The joint between the straightening unit and the straightening table is realized by leading a beam connected to the straightening unit inside the beam of the straightening table. The equipment comprise...

A method and apparatus are provided for straightening a coupling shaft comprising a tubular member having a midship tube shaft affixed at one end thereof, with the midship tube shaft mounted in a center shaft support bearing assembly. The coupling shaft is rotatably supported at the end opposite the midship tube shaft and at the center shaft support bearing which rotatably supports the midship tube shaft of the coupling shaft. The coupling shaft is rotated relative to an indicator for measuring ...

A device for sequentially stretched straightening a tube and bending same into a U-shape. The device includes a track for guiding a tube. A hold clamp is fixedly positioned on the track. A feed clamp is movably positioned on the track. A feed clamp is movably guided along the track between a first position adjacent the hold clamp and a second position at a stop mechanism. The stop mechanism is reciprocally shiftable along the track and is adapted to control the final increment of travel of the f...

A material straightening machine is provided with upper and lower roller frames and at least two piston assemblies interconnecting the frames and located respectively at the inlet and outlet sides of the roller frames. Each piston assembly includes a chamber housing a piston, the chamber being further divided by the piston into an upper annular chamber and a lower annular chamber. The upper annular chamber is connected directly to a pressure medium source while the lower annular chamber, which h...