A compound beam, column or rod, consisting of a web (31) of timber or a wood-based board material or plastic material and of one or several flanges formed of sheet metal and affixed to the margin and bent around the web. The flange (32) has been affixed to the web by teeth or equivalent extending substantially through the web, and possibly using glue as aid. The teeth (33,34) bend when striking against the opposite flange metal sheet, producing a permanent joint. The teeth may also be affixed to...

The present invention is in the field of collapsible structural members. It discloses a foldable beam possessing superior qualities of: light weight, compactness for transportation, quick deployment with minimum use of force, and high strength. These qualities are achieved through the use of a series of longitudinally rigid segments, hinged along one side and threaded by one or two cables along the opposite side. Tightening the cables holds the beam extended. Loosening the cables permits the seg...

A balance beam has an elongated beam member having opposite ends, a center portion, a top and a bottom, with legs on the bottom thereof adjacent the ends. Each leg has an upper and a lower end. A resilient support assembly is mounted within the elongated beam adjacent the ends thereof with each support assembly having a depending clevis extending downwardly therefrom with each clevis being pivotally secured to one of the upper ends of the legs. The legs extend downwardly and outwardly from the s...

A beam clamp for attachment to a beam structure such as a side flange of an I-beam for suspending threaded hanger rods therefrom for installing plumbing and electrical apparatuses thereon. The beam clamp includes a generally C-shaped clamping member with a spaced apart pair of clamping arms and a connecting portion connecting the clamping arms together. The clamping arms of the clamping member define a space designed for receiving a portion of a beam structure therein. A first of the clamping ar...

A method for generating a high flux density neutral atom or molecule beam and a system for carrying out this method. The method comprises generating a plasma of electrons and ionized atoms or molecules, accelerating the ions, effecting charge exchange and converting moving ions to moving neutral atoms or molecules. The charged entities are filtered out thus providing a neutral atom or molecule beam. The plasma is generated by a helicon source, by a novel source here described, or by other means....

The warp beam is made of at least two telescoping parts with a clamping means pressing the parts together radially from within the area of overlap. The clamping means includes a wedge-shaped clamping plate which is pressed against a wedge on the end of the innermost part of the warp beam by means of a partially threaded spindle which is rotatably mounted within the interior of the innermost part.

An improved tripper beam arrangement for actuating the slats of a slatted top quench car.

A beam compass consisting of a triangular scale and two trammel heads, each including a hollow slide body having an outer face and three, approximately equiangularly offset inner faces bounding a passage through the slide body. Guide rails project from the inner faces into respective grooves of the scale. An arm projects from the outer face of each slide body at right angles to the scale, and its free end carries an attaching device for a compass point or writing implement.

A beam projector is provided by a plurality of coded reticles mounted on a spinning disc and illuminated by a laser source. In order to maintain a constant irradiance on a receiver variably located in space a pseudo-zoom assembly is provided including a moveable source and/or condenser optics. Also, plural focal length optics are employed to expand the range over which the constant irradiance is maintained beyond that realizable by the pseudo-zoom assembly itself.

A beam splitter is disclosed in which a light beam entering a block of light-transmitting material is internally reflected a plurality of times between a pair of parallel sides, one side being coated to enhance such internal reflection and the other side having in the direction of its length a succession of areas which are differently coated to control the amount of the beam which is reflected internallly and the amount of the beam which emerges; a plurality of parallel emergent beams of substan...