The invention concerns a straightening beam for an automotive bodyshell straightening jig, said straightening beam comprising a vertical beam (1), which is sideways rotatable attached to a beam base (11), which is detachably mountable to the frame of the automotive bodyshell straightening jig, and the beam further incorporating guidance means (2) for guiding a pulling tool member (3) attachable to the automotive bodyshell and for adjusting the position of the pulling tool member. With prior-art ...

A beam homogenizer for converting an incident beam of non-uniform spatial power or energy distribution into an output beam of uniform spatial power or energy distribution. The homogenizer is a holographic optical element constructed from an array of facets or subholograms and positioned at a first plane in the path of an incident signal. The transmittance from each subhologram is uniformly spread across a target at a second plane that is spaced away from the first plane Another optical element, ...

A structural beam for use in buildings and other structures, and a process of forming the structural beam. The structural beam exhibits the structural advantages of a truss without the high labor costs normally associated with a truss. The beam includes a top flange, a bottom flange, a web joining the top and bottom flanges, and a plurality of apertures located within the web. Top and bottom chords including neutral axes are defined by a respective flange and longitudinally uninterrupted web por...

A beam scanner has a beam deflector mounted within a hollow shield having a beam entrance aperture and a beam exit aperture. The beam exit aperture is sealed by a window through which the deflected beam exits the hollow shield. A spin motor rotates the hollow shield, beam deflector and the window about a spin axis. A hydraulic system maintains the periphery of the window in an undistorted condition.

A composite beam including an elongated metal shell and a pierceable insert contained within at least one end of the elongated metal shell.

A beam for reinforcement of a vehicle body is extruded as a hollow shape having substantially planar parallel longitudinally extending deformation walls each of which is of variable wall thickness along its length. Two laterally extending grooves define a deformation zone having a maximal wall thickness allowing for a controlled folding of the shape.

Disclosed is a walking beam and more particularly its driving mechanisms whereby a material placed on a plurality of stationary beams for transfer, e.g., a steel product such as a steel pipe or round bar is raised from below, moved forward and lowered again onto the stationary beams by a plurality of transfer beams and this process is repeated to effect the transfer of the material. Each of the driving mechanisms includes a first link for causing the transfer beam to make a circular motion and t...

A threaded U-bolt receives a conduit to be clamped to an I-beam. A moisture resistant, polymeric material covers the conduit support portion of the U-bolt with the bolt threads remaining exposed. A clamping member covered with a moisture, resistant polymeric coating includes a first end portion adapted to engage a flange of the I-beam and a second end portion adapted to engage the conduit. A pair of apertures extend through the clamping member. A pair of resilient polymeric annular flanges exten...

A fabricated structural beam includes at least one longitudinally folded member having a web portion and a head portion. In different embodiments, a plurality of folded members may be interleaved with one another to provide configurations of varying load carrying capabilities. In all cases, the folded head portion is made rigid by forming it into a tube that is closed on all sides.

An electro-optical system for adjusting beam to beam power non-uniformity in a multi-beam scanning system is disclosed. The electro-optical system consists of N.times.M array of light beams and N.times.M array of photodetectors wherein optical means deflect the light beams onto a photodetector array. A circuit consisting of N.times.M array of programmable laser drivers programmed with uniformity values for each light beam and having an N.times.M array of feedback loops is used to adjust the powe...