Abstract: An article or can sorting apparatus for separating articles having a recycle value from articles having no recycle value is defined by an annular article supporting surface positioned at about 45 degrees to horizontal, a cylindrical wall positioned in relation to the surface to define an article processing chamber, a feed hopper into which a plurality of the articles are deposited for feeding into the chamber, and an article conveying disc or wheel positioned in parallel relation to the surface and having a plurality of outwardly extending article pusher arms for separating the articles, such as discarded beverage cans, from the plurality of articles and conveying the articles one at a time about the annular surface to a material discriminator and a weight scale and toward an accept door or a reject door. The material discriminator or metal detector, the scale, and the accept and reject doors form segments of the article conveying surface.

Abstract: A structure and method for reinforcing a wall including a plurality of blocks having vertically aligned passages and a sill plate positioned on top of the blocks. An opening is formed into one of the passages and lower and intermediate reinforcing bars are inserted through the opening and into the vertically aligned passages. An aperture is formed in the sill plate above the vertically aligned passages and an upper reinforcing bar is extended through the aperture and positioned partly within the vertically aligned passages, wherein it is connected to the lower and intermediate reinforcing bars, thereby forming an elongate reinforcing member. A cementous material which cures to a hardened state is placed in the vertically aligned passages whereby the elongate reinforcing member is fixedly attached to the wall therein. An upper portion of the upper reinforcing bar is threaded and adapted to threadably receive a nut which engages the sill plate.

Abstract: A leveling arrangement for an agricultural implement frame having a draft tongue which is pivotally attached to a front end of the frame includes a rocker arm attached to the frame front end for pivoting about a transverse axis, a transfer link pivotally connected between a lower end of the rocker arm and a frame lift lever extending from the frame lifting rockshaft, and a leveling link pivotally connected between an upper end of the rocker arm and a front end of the tongue. Rotation of the rockshaft by the action of a hydraulic cylinder to lift or lower the frame is transferred through the leveling arrangement, by reaction against the pivoted hitch member, to the front end of the frame to respectively lift or lower the frame front end to thereby maintain a substantially constant pitch of the implement frame.

Abstract: An insulative roof structure for application to a roof deck comprises a rigid foam panel having an upper surface and a longitudinal groove opening onto said upper surface. A rigid elongated strip having an upper surface is positioned within the groove with the strip upper surface being generally flush with the panel upper surface. A kraft board lamina including barrier means is bonded to the panel upper surface. A mechanical fastener extends through the lamina, the strip, the panel and into the deck for retaining the panel against the roof deck. A weather resistant membrane is adhesively bonded to the lamina.

Abstract: A pulmonary resuscitating device designed for single time use and for use with administering cardiopulmonary resuscitation to a heart failure patient. The device includes an endotracheal tube for insertion in the patient's trachea, a mouthpiece for a rescuer, and an air passageway therebetween. Included in the air passageway is a two-way valve which allows exhaled air from a rescuer to pass to the patient's lungs while diverting the patient's exhaled air to the atmosphere. An oxygen tap is provided between the rescuer's mouthpiece and the valve to allow oxygen enriched air to be administered to the patient.

Abstract: A clamp for releasably securing a circular saw blade with a central opening to a support having an opening. The clamp includes a spindle provided with a body for engaging the saw blade within its opening and a shank for extending through the support opening and receiving a nut for drawing the spindle body rearwardly toward the support whereby the blade is rotatably retained thereagainst. A plurality of levers having proximate and distal ends extend radially outwardly from the spindle body and are pivotally attached thereto at fulcrums between the lever ends. A spring engages the spindle body and is connected to the lever proximate ends for biasing them forwardly whereby the lever distal ends are biased rearwardly and clamp the saw blade against the support. A quick-release feature is provided for unclamping the saw blade.

Abstract: An unloader apparatus for a gas compressor having a compressor cylinder and a reciprocating compressor piston slidable in the compressor cylinder. The unloader apparatus comprises a hollow sleeve positioned in a suction line of the gas compressor with a port therethrough for communicating gas from the suction line to a suction valve. An unloader piston is slidably disposed within the hollow sleeve and is movable between an open position opening the port whereby gas flow to the suction valve is prevented and a closed position closing the port. In its closed position, the unloader piston seals the compressor cylinder and the compressor piston reciprocates in a partial vacuum. Actuating means connected to the unloader piston is provided for moving the piston between its respective positions. The actuating means utilizes high pressure gas from the discharge side of the compressor for sliding the unloader piston between its positons and exhausts the gas to the suction side of the compressor.

Abstract: An end loaded ball valve having a fluid channel and a ball moving gate with a ball that seats against a valve seat to block passage of fluid through the valve. The valve also includes a removable retainer in the flow channel of the valve. The retainer, when in functional position in the valve, holds the valve seat in position in the valve and, when removed from the valve, allows access to the seat and the ball through the channel. The gate is designed to hold the ball during operation of the valve but to release the ball for removal through the channel for repair or replacement.

Abstract: A valve for compressor clearance or by-pass control for a gas compressor having a compressor cylinder which includes a tubular member having a bore communicating with the compressor cylinder, an outer surface and an opening. A valve sleeve receives the tubular member therein and is slidably movable with respect thereto between an open position whereat one of a clearance pocket and a suction chamber communicates with the compressor cylinder through the opening and a closed position closing the opening. A plug is positioned in the tubular member bore and reduces the amount of clearance in the compressor cylinder. Actuator means is provided for moving the valve sleeve between its open and closed positions. The tubular member is attached to an outboard side of a suction valve assembly, and the bore thereof communicates with a passage extending through the suction valve assembly and opening into the compressor cylinder.

Abstract: A self-sealing and self-positioning replaceable rupture disc cartridge arrangement includes a cartridge receptacle mounted in a pressure relief vent having spaced apart opposite end walls with circumferential positioning grooves on respective internal surfaces thereof and a cartridge assembly having a rupture disc mounted therein for removable placement within the cartridge receptacle. The cartridge assembly includes an annular cartridge body having a cylindrical passage therethrough with a shoulder at one end thereof to retain disc seat rings, having the rupture disc placed therebetween, within the cartridge body. The cartridge includes seal mounting rings which have circumferential seals thereon, which are resiliently retractable into circumferential channels at opposite ends of the cartridge body, and which cooperate with the positioning grooves on the cartridge receptacle walls whereby upon placement of the cartridge within the receptacle, the seal rings snap into the positioning grooves.

Abstract: A tooth root extractor comprises first and second elongate arms pivotally connected at adjacent first ends thereof. A threaded tooth root screw is operably retained by a free end of the first arm and operably engages and is received within a root of a tooth to be extracted. A free end of the second arm is supported by gums or teeth surrounding the tooth root. A jackscrew positioned between the two arms is manipulable to bias the arms apart, thereby extracting the tooth root. The jackscrew is located exteriorly of the mouth of the patient when the extractor is in an operational position thereof.

Abstract: A message waiting light control system for use in cooperation with a message storage and retrieval computer includes a microprocessor, a memory, address decoders, and an organization of message waiting lights, relays, and latches. The lights, relays and latches are organized in subgroups as memory mapped input/output words which correspond to the words of bits in the memory. Groups of the latches and relays are addressable. The microprocessor is responsive to an identification code number and a message waiting command to address the proper group and to write a data word to the proper subgroup to activate the selected light. In a similar manner, the lights may be deactivated.

Abstract: A stud anchor is provided for securing to an associated mounting bracket a non-round hollow extension having planar inner wall surfaces which are parallel to a longitudinal axis of the extension. The stud anchor comprises an expandable anchor member having a shank portion and a head with the head comprising a plurality of resiliently deformable segments. The segments each include an outer surface which is biased into frictional contact with an associated inner wall surface of the extension securing the extension to the stud anchor.

Abstract: A reusable envelope including a back panel with opposite side edges and a front panel integrally connected to the back panel and demarcated therefrom by a fold line. The back and front panels each have inner and outer surfaces and form a pocket between their respective inner surfaces. A pair of opposed side flaps are each attached to a respective back panel side edge and to the front panel outer surface. Each side flap includes an extension having a secured portion secured to the front panel outer surface, an unsecured portion and an extension side edge. The extension side edges are positioned in opposed, spaced relationship. A pair of closures are each formed between the front panel outer surface and a respective extension unsecured portion. Each closure is adapted to slidably receive therein a respective side margin of a card insert which is thereby retained adjacent the front panel.

Abstract: An apparatus and method for recovering atmospheric moisture utilizing a wind driven electrical generator for powering a mechanical refrigeration system for condensing atmospheric moisture. A housing is provided forming an atmospheric duct with a turbine mounted therein and drivingly connected to the electrical generator. The refrigeration system includes an evaporator positioned in the atmospheric duct whereon water vapor is condensed. In the practice of the method for recovering atmospheric moisture, electrical current is generated from wind and powers the refrigeration system which includes the evaporator. Atmospheric moisture is condensed on the evaporator and collected.

Abstract: A process is disclosed for producing steroid hormone receptor samples to be utilized as controls during assays of various human tissue for steroid hormones, especially estrogen. The process comprises collecting tissue known to include such receptors, adding a buffer solution to the tissue, homogenizing the tissue and buffer solution, centrifuging the homogenized mixture, and thereafter collecting the supernatant. The supernatant which contains the desired receptors is subdivided into suitable control sample size and preferably lyophilized to a flake.

Abstract: A livestock chute including a pair of opposite side frames positioned in spaced relation and each having a first and a second end. First and second end panels extend transversely between and interconnect the side frames. The second end panel is longitudinally movable relative to the side frames between the first and second ends thereof. An enclosure for an animal is formed by the side frames and the end panels, the enclosure being accessible through an access member mounted on one of the side frames and movable between open and closed positions.

Abstract: A waste gas flare igniter includes a pair of ignition tubes, each having a fuel line and an electrode extending therethrough to points near the ends of the tubes. The tubes are connected to an air distribution box which is slidably mounted on linear guides. A jackscrew and motor translate the air box and tubes between an extended position wherein the tubes connect with inwardly directed extensions passing through a heat shield at the end of the flare pipe for ignition of the waste gas and a retracted position spacing the tubes from the heat shield. The air box is connected by a telescoping duct to a blower, and the fuel line to a valve and pump to provide a fuel-air mixture which is ignited when the tubes are extended to ignite the waste gas.

Abstract: A horizontal mixing aerator rides on an upright beam member for submersion in a body of water such as an equalization basin, oxidation ditch, or sludge holding tank. The aerator employs a submersible mixer motor driving a propeller which in one embodiment is mounted on the beam member by a slidable bracket for height adjustment. The bracket is also swingably mounted to the beam member for adjustment of the vertical plane angle. Because the beam member is also mounted for rotation, substantially any attitude or position of the mixer can be selected for creating an efficient flow pattern within the body of water. Air or fluid injection can also be provided by the use of alternate embodiments.