Abstract: A mask for precisely defining the area of a thin metal layer on a substrate to be deplated during measurement of the thickness of the thin metal layer utilizing a coulometric technique. The mask having an adhesive on one side for securing the mask to the thin metal layer and for preventing the leakage of electrolyte between the mask and the thin metal layer.

Abstract: Improved stripping mechanism for noodle cutting machinery including a resilient spring support member in the shape of a "W" for positioning replaceable multitoothed comb assemblies in operative proximity with noodle cutting rollers for stripping severed noodle product therefrom.

Abstract: Apparatus for classifying carrier gas borne particulates including a chamber having a classifying rotor suspended therewithin fed by a jet pump induced transport path of carrier gas in the periphery of said chamber.

Abstract: Improved mounting fixture for ceiling mounted electric fans and like objects including a pair of opposingly displaceable joist-engagement blocks mounted on the ends of a threaded support member.

Abstract: Electrostatic spray coating system wherein the output voltage is maintained constant over the working range of the system and wherein the power is automatically interrupted whenever the load current exceeds a predetermined amount, as for example, about 120 microamperes.

Abstract: A selectively shaped, chromatically distinct stratified sherbet confection and method of making the same. Partially prefrozen chromatically distinct sherbert extruded from a multichambered extrusion head and subjected to extremely low temperatures, preferably by spraying the surface of the extrusion with liquid nitrogen, to form a structural cohesive external rigid crust, which contributes to the stability of the extrusion's shape during subsequent operations upon it.

Abstract: A two speed rear wheel hub transmission for BMX bicycles and the like that can be utilized as original equipment or as a conversion kit. High and low speed drive sprockets are mounted with intermediary overrunning clutches on the rear wheel hub of a BMX bicycle with each adapted to be concurrently chain driven by larger diameter high and low speed sprockets commonly mounted on the pedal drive shaft. Both the high and low speed drive systems are normally biased into driving engagement with the rear wheel hub but with the high speed drive system normally overriding the low speed system which free wheels during normal high speed bicycle operation. Downshifting is effected by a manually induced counter-rotational precessing of the rear wheel mounted high speed drive sprocket for selective driving disengagement thereof and automatic, delay free shifting to the low speed drive without effective interruption of drive pedal sprocket rotation.

Abstract: Method for directly desubliming gaseous aluminum chloride to solid form in a fluidized bed of solid particles of aluminum chloride at controlled temperatures for production of selectively constituted solid particulate aluminum chloride.

Abstract: An improved chemical carbonless copy paper employing a selectively constituted hot melt coating for CB type pressure sensitive carbonless copy paper having discrete liquid droplets of a composite metallic salt solution chromogenic reagent material contained therein.

Abstract: This invention is directed to method and apparatus for repairing damaged dry wall building panels and includes a selectively constituted repair strip operative to properly position the marginal edges of a redefined opening and replacement panel segment to effect co-planar positioning of the latter relative to undamaged wall sections.