Abstract: A feed mechanism for longitudinally moving an elongated member, such as a channel-shaped extrusion and the like, along a support table beneath a filling nozzle or through a cutting apparatus, comprising a pair of opposed E-shaped frames, each having its central leg pivotally connected to the table and each having a vertically axised roller mounted upon the free ends of each of its outer legs. The legs of one frame are axially aligned with the legs of the opposite frame so that the rollers form opposing pairs, with one roller of each pair being power driven. The central legs are formed of a hydraulic cylinder and piston rod so that they are longitudinally adjustable for thereby moving the rollers towards and away from each other for bearing against opposite sides of the elongated member and moving the elongated member longitudinally therebetween.

Abstract: In a quadrophonic sound arrangement having a panel with a series of sound outputs connected to a series of speakers, and a series of sound channel inputs, a rota-phonic system which comprises a series of circuits interconnecting each input respectively to each one of the outputs. A continuously operated circuit control is interposed in said circuits for progressively changing the circuits for switching each channel input in a sequence form a connected speaker to the successive adjacent speaker, so that over a predetermined interval, each input is successively connected, one at a time, into each output. The circuits and circuit control includes a mechanical device for switching circuits. A modification includes a solid state electronic circuit between inputs and outputs with the circuit control including a series of trigger circuits and an associated trigger switch.

Abstract: A high energy saving heat exchanger is provided for the hot exhaust gases of a furnace which has a combustion chamber, a burner with electrical controls, a furnace heat exchanger and an exhaust pipe adapted for connection with a stack. The high energy saving heat exchanger includes a housing having an air chamber with an exhaust inlet connected to said furnace exhaust pipe and an exhaust outlet. An exhaust conduit interconnects said housing exhaust outlet and stack. A continuous circuitous tubing is nested within the air chamber of said housing at one end connected to said exhaust inlet and at its other end connected to said exhaust outlet. An exhaust fan is interposed in said exhaust conduit for drawing exhaust gases through said heat exchanger tubing and delivering said gases under pressure to said stack. A hot air duct is interposed between said housing and a floor surface defining an area to be heated and including a hot air register. Heat duct communicates with said air chamber.

Abstract: A coating roller is formed of a cylindrical drum and a replaceable cover. The cover comprises a thin, dimensionally stable, sheet metal substrate upon which is laminated a thick, resilient elastomer layer. The opposite ends of the substrate are provided with springy tongue-like formations which removably fit into and resiliently adjust to opposed, adjacent grooves in the surface of the drum for securing the cover upon the drum. The cover is made by initially forming a flat sheet to the peripheral surface size of the drum, with the tongue-like formations on its opposite ends, and then bending and holding the substrate in a mold having a circular diameter greater than the drum diameter so that the ends of the substrate are widely spaced apart. The elastomer layer is molded upon the substrate and the composite plastic-sheet metal cover is removed from the mold and then applied upon the smaller diameter drum wherein the opposite ends of the substrate are closely adjacent each other.

Abstract: A thermal pack unit or compress is formed by adhesively securing two relatively thin pieces together. The first piece is a plastic sheet having one or more interconnecting channels or grooves formed in a surface thereof to form a path for the circulation of the thermal fluid. The second piece is a relatively thin sheet of non-resilient bendable metal which is secured over the channeled surface of the plastic sheet for sealing the top portion thereof so the fluid inputted at one end of the channeled space is able to flow or circulate therethrough and then be outputted from an outlet in the channeled space. The metal sheet is bendable so that the pack unit can be readily conformed to a given contour of the human body such as the irregular areas about the eyes, nose and ears of a person and the characteristics of the metal insure that the contoured shape will be retained to aid in keeping the pack unit positioned while in use.

Abstract: The invention relates to a method for assembling together two parts of headlights or lights for automobile vehicles, the first of said parts being made of an inorganic material and the second of a thermoplastics material not able to be directly fixed to the first by adhesion, wherein a connection element is partially introduced into the second thermoplastics part so that a part of said element projects and acts as free anchoring element, and the two parts are then assembled together by the depositing of a layer of glue which, on the one hand, adheres to the first part and, on the other hand, completely covers the said free anchoring element.

Abstract: A holder for retaining sutures, needles and other surgical products used during surgical operations, with one form of the holder being made from sheet material and having intermediate portions folded over adjacent intermediate portions thereof to form a plurality of pockets which are adapted to receive and retain the sutures and needles. Such holder is provided with one or more detachable blocks of resilient material having indicia thereon for assisting in counting the needles carried by the blocks. The holder may be provided with a foldable easel stand. Another embodiment consists of a block of polyfoam material divided into first and second sections, with the first section having on the top wall thereof a decal with indicia thereon and with the second section having in the top wall thereof parallel slots for receiving surgical sutures, needles, etc. to hold them securely and conveniently in place.

Abstract: An electrophoresis method of determining the concentration of high density lipoprotein (HDL) cholesterol in body fluids and simultaneously determining the concentrations of very low density lipoprotein (VLDL) and low density lipoprotein (LDL) cholesterols in the fluid. The method includes applying a small sample of the fluid to an electrophoresis support medium, applying a direct current across the medium, applying a developing substrate to the electrophoresed lipoproteins and quantitatively determining the concentration of each lipoprotein cholesterol. This method does permit direct and simultaneous measurement of each lipoprotein cholesterol fraction while eliminating precipitation of each fraction as required by the prior art.

Abstract: An interlocking siding or roofing strip or slat assembly for covering the surface of a building which may be susceptible of being crushed or deformed by the application of excessive force to a fastening element such as a nail. The slat assembly includes a fastening tab, a panel, an anchoring configuration intermediate the panel and the fastening tab and a hook-like configuration integral with the bottom of the panel for operatively engaging the anchoring configuration of a previously-installed slat assembly for interlocking them one above the other in a partially overlapping manner.

Abstract: The processing apparatus comprises a rotatable barrel supported from a stationary cross bar by a pair of stationary U-shaped hanger arm and collar bearing assemblies of rigid construction, with one assembly opposite each end of the barrel. Inner portions of the collar bearings are received in openings provided in the ends of the barrel and upon which the barrel is adapted to rotate about the axis of the barrel. The outer portions of the collar bearings are located outside of the barrel and are provided with circumferentially extending annular grooves which surround the axis of the barrel. The ends of the U-shaped hanger arms are secured to mounting lugs provided on the cross bar, with the bottoms of the U-shaped hanger arms being located in the grooves and wrapped around the collar bearings. The hanger arms are each secured in two places, one to the corresponding mounting lug and the other to the corresponding stationary collar bearing.

Abstract: A flexure-based transducer especially adapted for very precise measurement of small forces in either direction along or parallel to a single axis, without being adversely affected by forces applied in any other direction or by moments applied about any axis. The transducer is capable of withstanding very high overloading, without damage, by the provision of two resilient portions mounted in parallel to each other but in series between the gaged portion and a fixed support, plus an overload pin on the gaged portion which bottoms after a pre-determined travel.

Abstract: A multiple spindle inclined drilling machine includes a base having a bed inclined at an acute angle and with guideways upon said bed. A slide is reciprocally mounted upon said ways and is connected to a piston rod of a cylinder assembly mounted upon said base for effecting reciprocal movements thereof. A multiple spindle head is mounted upon said slide. An apertured fixture adapter is mounted upon said bed and lies in a plane at right angles thereto. A rotative drive mechanism is mounted upon said bed and has a variable speed output shaft. A plurality of drive spindles with individually mounted drills is adjustably supported upon and within said head and connected to said drive mechanism. An upwardly and rearwardly inclined fixture mounting plate spans and is secured to said adapter for supporting a workpiece mounting fixture.

Abstract: A binary controlled tube bending machine wherein a binary punched card system is used to programmably control (1) the longitudinal position of a plurality of spaced bends along the length of a tubular workpiece; (2) the radial orientation of the bends with respect to one another; and (3) the depth of each of the bends. An elongated work support having a bending station positioned at one end thereof slidably mounts a carriage for reciprocal motion toward and away from the bending station. An arbor assembly is mounted on the carriage for releasably retaining the tubular workpiece.

Abstract: A method and apparatus are disclosed for mechanically steering vehicles such as crawler tractors and the like or skid steer tractors, which include a pair of independently operable power sources. The apparatus includes a pair of independent first linkage systems interconnected between a single operator control lever and each respective power source to achieve equivalent power outputs from the sources upon movement of the lever. A pair of independent second linkage systems are interconnected between respective links in the first linkage system and respective throttling means. In the method, each throttling means may be operated independently of the other to achieve unequal power outputs from the two sources by virtue of the independent first and second linkage systems.

Abstract: An isothermal transformation process or method is disclosed for heat treating metals of the class which is characterized by having a time-temperature-transformation, or T-T-T Diagram or Isothermal Transformation Diagram. The process includes the steps of heating the metal workpiece at a heating source or station to a temperature above the solution treating transformation or austenitizing temperature (A.sub.

Abstract: A window assembly is provided for a building wall having an aperture which includes a housing nested and secured within said aperture having side plates, top and bottom plates. Each side plate has an inwardly opening upright recess of a predetermined horizontal depth defining stop ledges. A hallow frame is snugly nested within said housing and within said recesses and bears against said top, bottom and side plates. Headed fasteners engage and project through said frame and are threaded into said housing. Said frame has an internal recess. A glazed window is nested within said recess and is swivelly mounted therein upon a vertical axis and adapted for rotation throughout 360.degree.. The swivel mounting includes pairs of vertically aligned fasteners journalled though the central top and bottom portions of the window including pivot shanks at their ends which project from the window and are threaded within corresponding threaded bores in cups secured within the frame.

Abstract: A method and apparatus are disclosed to perform a pair of fabricating operations in sequence on a single workpiece. The apparatus includes an anvil interposed between a pair of spaced, aligned confronting fabricating tools, such as punches or welders. In the apparatus, power means and a force equalization system are mounted on one side of the anvil, so that one of the fabricating tools is essentially at one end of the apparatus. In the method, a workpiece having two generally parallel sections is placed over the anvil such that each workpiece section is interposed between one face of the anvil and a corresponding tool. Then, each workpiece section is subjected in sequence to a fabricating operation, by first displacing one fabricating tool and the anvil toward each other and then displacing the other fabricating tool and the anvil toward each other.

Abstract: A pack unit or compress is formed in two halves each containing one or more channels and the halves are arranged face-to-face with a separator sheet covering the channels almost to their blind ends. The cold or, if desired, hot thermal fluid may flow through all of the channels in one of the halves simultaneously and then around the edge of the separator sheet in the blind ends of the channels and then through the channels of the opposite half to exit from the outlet end thereof. The unit may be appropriately contoured to closely fit a selected portion of the anatomy and can be used to continuously apply a uniformly cold compress to patients whose skin surfaces have recently undergone plastic surgery, skin grafting or the like to reduce swelling and to slow down the tendency of the newly-applied skin to die before the flow of blood begins.

Abstract: A two-piece interlocking siding or roofing slat assembly for covering a surface of a building. The slat assembly includes a central panel having a lower anchoring configuration and an upper hook-like slide configuration integral therewith. A separate attachement strip is provided for securing the panel to the building surface to be covered so as to prevent "oil canning" which is caused by the expansion and contraction of the exposed surfaces. The attachment strip includes a nailing tab adapted to be fixedly secured to the surface of the building to be covered by fastening elements.

Abstract: The friction curtain apparatus is for washing a motor vehicle which is moved through an opening in the frame of the apparatus having a longitudinally extending axis between the opening's entrance and exit. A least a pair of swingable scrubbing units are pivotally carried by the frame on each side of the axis and are capable of turning or swinging in alternate directions forward and then backward with respect to the entrance and exit. Each of the units comprises an elongated rack having a plurality of transversely extending slot-defining apertures which are parallel to one another. A pack unit containing fill material is received in each of the apertures and forms a curtain. The racks of each pair of units are connected by tie bars which are pivotally connected to upstanding arms carried at opposite ends of the racks.