Abstract: A roller assembly, for use with a hydraulically-powered, truck-mounted, standard snowplow lift having three attach points, is provided with a rigid frame, a roller rotatably supported in the frame, a saddle bracket pivotally attached to the frame and to two of the snowplow lift attach points, and a tongue member also pivotally attached to the frame and to another one of the three snowplow lift attach points, the assembly frame being rotatable relative to the frame through a limited range to accommodate changes in curvature of a roadway surface.

Abstract: Apparatus 10 (FIG. 1), for testing samples of friction material 31, 32 in rubbing contact with a surface 33 of a rubbing element 34, comprises a table 12 for supporting the rubbing element and a load cell 16 for sensing the load imposed by the frictionally coupled rotating samples from which the coefficient of friction can be determined. To make the tests repeatable rapidly and with identical starting conditions cooling means 40 is interposed between the rubbing element and table. Cooling means 40 comprises a fluid cooled heat exchanger 41, conveniently cooled by local main supply water supplied at its natural temperature, and thermoelectric cooling means 75. The thermoelectric cooling means consists of an array of planar peltier cooling elements which develops a temperature gradient there across which, with reference to the heat exchanger temperature, is able to cool and re-cool the rubbing element to temperatures as low as −25° C. within a matter of minutes.

Abstract: The product unit-delivery apparatus of the present invention is basically comprised of a product unit-feeder subassembly, a co-operating product unit-picker subassembly, a continuously operating electric drive motor, a drive train which intermittently and simultaneously provides the power output of the apparatus electric drive motor to the unit-feeder and unit-picker subassemblies, and adjustment components for readily adapting the apparatus to the picking of product units having different heights, different widths, or different thicknesses at very high product unit picking rates.

Abstract: The en masse bulk material conveyor apparatus of the present invention is essentially comprised of a length of formed trough having a generally U-shaped cross-section configuration with a substantial horizontal center section, a flexible endless bulk material-moving conveyor belt frictionally supported by the formed trough, a conventional drive roll, idle roll, belt tension roll, and drive motor combination co-operating with the endless material-moving belt, and a bulk material enclosure positioned above and in spaced-apart relation to the endless belt. Bulk material loading chute and discharge chute features may optionally be combined with the conveyor apparatus.

Abstract: An improved railroad trackwork spring wing frog assembly having a selectively releasable hold-open subassembly for the spring wing rail is provided with a combined compressible shock absorber and compression spring that are functionally connected to the assembly spring wing rail and to the assembly base plate, and that function to generate an opposing force in connection with opening movement of the spring wing rail and an augmented force in connection with closing movement of the spring wing rail.

Abstract: A method of manufacturing a bonded friction product, such as an automobile brake shoe, and apparatus therefor, includes forming a plastic inner lining element of uncured or green thermosetting resin binder containing friction modifiers and reinforcements and bonding the element to a shoe platform by way of an adhesive resin in a heat and pressure regime which cures the resin binder and adhesive. The need for a closed mold and/or venting stops is avoided by a stabilizing press (50) which includes a heated bed (53) between guide plates (56, 57) that has a recess (52) of less thickness than the lining element (16) to receive such lining element in its green state. The guide plates are spaced slightly further apart than the width of a shoe platform which is, having been preheated, brought down onto the lining element and pressed by a pneumatic ram (70), the loosely sliding shoe body (11) comprising a non-sealing closure member of the press.

Abstract: A railroad trackwork frog assembly is provided with a base plate, a spring wing rail supported by and movable laterally relative to the base plate, and a hold-down subassembly attached to the spring wing rail and to the base plate, the hold-down subassembly comprising, in combination with a horn housing, a horn element having a cross-section area moment of inertia about a transverse horizontal axis intersecting the cross-section area center of gravity that is smaller than the cross-section area moment of inertia about a transverse vertical axis intersecting the cross-section area center of gravity.

Abstract: A high-performance printed wiring board assembly is disclosed which utilizes a substrate component having a reinforcement material. The substrate has a glass fabric reinforcement embedded in a condensation-reacted and thermally-crosslinked nadic end-capped polyimide resin. There are electrically conductive lamina current pathways directly adhered to the substrate. There are high-temperature soldered or metallurgically bonded connections that electrically join conductor leads of electrical devices to the lamina current pathways.

Abstract: To separate light organic fractions from waste which has undergone pretreatment consisting of precomminution, ferrous-metal separation, postcomminution, further ferrous-metal separation, drying and nonferrous-metal separation, multiple, preferably so-called zigzag air classifiers are arranged in cascading stages and are passed through sequentially by the material stream to be separated. The upward-stream speed of the air is adjusted in stages in the individual air classifiers such that the first air classifier receives the smallest and the last air-classifier the highest air speed. As a result, first the fine, then the medium and lastly the large organic light fractions are discharged to the top in sequence from each air-classifier stage. The separated organic light fractions represent fuel components of high calorific value. The remaining bottom-discharge from the air classifier group consists of a mixture of heavy organic fractions and minerals.

Abstract: An improved railroad trackwork spring wing frog is provided with a rail-closer having a single compression spring whose reaction forces are applied to the frog spring wing rail through movable linkages that are each connected to the spring wing rail at different spaced-apart position and that each abut the single compression spring.

Abstract: A vehicle extension crate assembly for mounting at the rear of a cargo transport vehicle is provided with inter-connected bottom, back, side, top, and front lipped panels that are readily assembled into a rigid unitary structure with included overflow cargo.

Abstract: A boot-driven bucket elevator apparatus for bulk material handling is provided with a boot pulley drive and take-up which effects rotation of the apparatus co-operating bucket endless belt, which is platform lever-mounted, and which automatically effects proper tensioning and centering of the apparatus endless belt by the gravitational weight of the drive and take-up.

Abstract: The invention relates to a method for inhibiting and eliminating adhesive impurities, so-called stickies, from waste paper preparations or paper pulp containing prepared waste paper in the paper industry by using classic sorting- and dispersion equipment and a flotation unit consisting of one or more flotation stages containing deinking froth. In the course of preparing the waste paper for making a paper pulp which is fed to a paper machine, a hydrophobized synthetic or natural mineral is added to the pulp before or during its introduction into the paper machine, causing the microstickies to be adsorbed by the added hydrophobized mineral and removed by same from the flotation unit via the deinking froth.

Abstract: A boiler tube peeler tool assembly useful in connection with the removal of boiler tube flared-end segments from retention within power boiler header walls is provided with a tool body subassembly, a clamp subassembly carried by the tool body subassembly and having pairs of clamp expansion jaws that engage the boiler tube flared-end segment interior surface, a peeler blade subassembly that bends and shears retained longitudinal gap metal from retention by the boiler tube flared-end segment, and a conventional pressurized-fluid actuator for reciprocally powering the peeler blade subassembly.

Abstract: A compression tool assembly that is useful in connection with the removal of boiler tube flared-end segments from retention within power boiler header walls is provided with oppositely paired compression jaw elements that are rotated to cause the wall of a longitudinally gapped boiler tube flared-end segment to be compressed into a cross-section configuration that permits comparatively easy tube segment withdrawal.

Abstract: A power boiler tube removal tool assembly is provided with co-operating shear block cavity, shear blade, and anvil elements that function to shear and inwardly bend gap metal in a boiler tube flared-end segment to thereby facilitate subsequent boiler tube flared-end segment peeling, crushing, and withdrawal steps that complete tube end removal from retention within a boiler drum wall.

Abstract: A self-priming siphon has an inverted U-shaped tube filled with a hydrophilic material where one end of the tube is connected to a smaller diameter tube such that when the other end of the tube is immersed in a liquid, capillary action causes the fluid to rise in the tube above the level of the water and thereafter fall through said one tube end causing a suction which primes the siphon.