Abstract: A fly press has a frame and a press screw rotatably mounted in said frame, and a flywheel attached for rotation with the press screw at one end, and a hydraulically driven ram rotatably attached to the other end of the press screw. An upper thrust bearing appears at one side of the frame for engagement by the flywheel, and a lower thrust bearing appears at the other side of the frame for engagement by a collar carried by the press screw. The upper and lower thrust bearings are spring biased in opposite directions. The abutment for the upper press bearing is engaged without impact when the collar disengages from the lower thrust bearing after the press blow to reduce the destructive effects on the bearing by press blows and return of the ram.

Abstract: A printing device for use with a hand operated labeler: the hand labeler includes a pair of juxtaposed spaced end plates fixed to the body of the hand labeler, a support shaft member interposed fixedly between the end plates, and a plurality of bar code rings mounted rotatably on the support shaft member and juxtaposed to one another between the end plates; the bar code rings carry at least bar code types and index characters on their respective outer peripheries; a bar code ring selecting mechanism includes a selecting shaft which is made rotatable and axially movable for selectively turning one of the bar code rings; stain preventive means with a cover plate is provided which is mounted on one of the end plates in a manner to move radially of the bar code rings so that the cover plate may be moved during the printing operations to approach and cover the index characters thereby to prevent them from being stained with ink, and so that the cover plate may be moved during the type selecting operations to leave

Abstract: A detachable ink fountain which is attached to a printing press by hinges with circular apertures through which a pivot shaft extends with circumferential grooves adjacent to each hinge which has a slot from the aperture to the outside surface of the hinge with at least a portion of slot having a dimension greater than the diameter of the pivot shaft but less than the diameter of the groove.

Abstract: A device for loading an ink fountain of a printing press directly from sealed cans of ink. The device includes a base plate having a pair of vertical threaded pillars laterally spaced to define a working area adequate to accommodate cans of ink in all normally available sizes. A pressure plate flatly superimposed above the working area has captive bushings which threadedly engage the pillars, the bushings being rotated in unison for lowering the pressure plate to the base plate. An aperture is generally centered in the base plate. Thus when the base plate is seated above the fountain and a can of ink having a puncture alined with the aperture is engaged between the pressure plate and the base plate, ink is squeezed through the aperture directly into the fountain accompanied by accordion type collapse of the can into empty flattened condition.

Abstract: A bending-resistant gripper carriage structure is constructed in a fiber sandwich construction of the gripper carriage support. At least one layer of fibers is provided which may be in a shell-type mode with two layers of fibers each having different directions of elongation, one layer having fibers extending in the longitudinal direction of the gripper carriage support, and the other layer having fibers extending crosswise to the longitudinal direction. Several manufacturing techniques can be utilized such as fiber winding and/or lamination of fiber strips or tubes.

Abstract: An out-of-line igniter assembly having a primer located out-of-line of an nition train and movable to an in-line position for ignition of a main pyrotechnic charge. A housing has a raceway connected with a gas expansion chamber and a pellet chamber, and a slider having a primer and a striker assembly is movable in the raceway. Premature detonation of the primer causes the primer to fire into the gas expansion chamber but, in normal operation, the slider is moved so that the primer is fired into the pellet chamber. Movement of the slider causes the striker assembly to actuate when the slider is in an in-line position with the pellet chamber.

Abstract: A self-scuttling buoyant pyrotechnic marine marker. A scuttling pellet of incendiary composition is provided adjacent the pyrotechnic candle, to be ignited as the candle becomes spent and to burn a hole in the side of the jacket, or to clear impurities or residue which may have built up during burning of the candle to block the smoke or flame emission hole of the marker. Scuttling is then virtually assured by simple wave action. In this way, the hazard of spent markers being washed ashore to pose a danger to humans or to pollute the environment is reduced.

Abstract: A sabot, having four quadrant sections, for use in testing of impact damage of metal fragment-type products. The quadrant sections include molded alignment guides and a depression which forms a central cavity for holding payloads. Recesses are provided in the quarter sections to reduce weight. An external gas plug flare is provided on the external surface of the sabot. The sabot has a conical recess at the forward end with a hole into the interior of the sabot to enhance separation of the quadrant sections after the sabot has left the gun barrel.

Abstract: A weight transfer rail traction vehicle adapted for travel on alternate sets of rail or road wheels which is characterized by a number of features including: a spring and shock absorber system which cooperate to maintain the springs, while in a rail travel mode, in an active condition despite substantial weight transfer loads being placed thereon; a hydraulic system which enables the differential axles to be optionally spring supported to the frame or in a rigid fixed relationship therewith; a differential axle suspension system wherein the spring supported axle moves in a substantially vertical plane without lateral shifting; a shock absorbing coupler; a coupler mounting arrangement which includes a coupler carriage directly mounted to a lateral frame member of the vehicle which serves as a guideway for directing travel of the coupler carriage and hence the coupler mounted thereto in a horizontal direction and wherein the coupler itself is mounted for vertical movement with respect to the coupler carriage; a

Abstract: An eraser crumb catcher comprising an elongated trough which is removably supported on a bracket secured along an edge of a drafting table. The trough has an inboard side which extends down from the edge of the table and an outboard side which curves up and out and then back to terminate above the edge forming a cowl or deflecter to deflect the eraser crumbs brushed from the table to the trough.

Abstract: A stackable modular shelf apparatus including at least two vertically stackable frame modules and a multi-sided intermediate shelf, in which each frame module includes a plurality of generally rectangular individual frames corresponding to the number of sides on the intermediate shelf and arranged in upright planes along the sides of the shelf with the upright end members on adjacent ends of the frames juxtaposed adjacent the corners of the shelf and connected together by a plurality of connectors. One frame module is stacked on top of the other frame module and the shelf has a generally horizontal peripheral portion interposed between adjacent side members on the frames of the upper and lower frame modules.

Abstract: A two piece, lengthwise telescopically adjustable, shelf adapted to be mounted between vertical structural members or studs in a building. The lengthwise adjustability permits use of the shelf arrangement in spite of wide variations in the center-to-center spacing between the structural members.

Abstract: Solid particles comprising combustible matter (e.g. coal) associated with or contaminated by inert matter (e.g. ash, rock) is segregated in a segregation zone into low density/small size and high density/large size fractions. The low density/small size fractions are passed to a utilization zone for conversion of the combustible matter. The high density/large size fractions are size reduced (e.g. by grinding) and either returned to the segregation zone, or passed at least in part, directly to the utilization zone. The conversion of the combustion matter proceeds more efficiently as a result. The segregation zone may operate by fluidized size/density segregation and in the utilization zone, the combustible matter may be at least partially combusted, preferably in a fluidized bed.

Abstract: Stable suspensions of solid particles are formed by dispersing the particles in a pseudoplastic aqueous medium containing in solution xanthan gum and at least one non-ionic water-soluble polymer, exemplified by guar gum, in proportions providing an unexpectedy high ratio of yield point to plastic viscosity. The medium is especially useful in the planting of seeds which may be pre-germinated.

Abstract: A mobile spreader of the type drawn by a tractor includes a hopper mounted on a roller. The roller is provided with a jarring strip which imparts a jolt to the hopper on each revolution of the roller. This jolting action prevents bridging of the material in the hopper, knocking the hung-up material down into the lower portion of the hopper where an agitator and an impellor further stir up the material. The cooperative effect of the jarring strip, the agitator and the impellor is to provide a steady supply of material, even when moist material is being distributed. The rate of application of the material is controlled by a slidable apertured plate disposed across an opening in the bottom of the hopper. The spreader may be selectively provided with a rake, a floater plate, and a spiker. The spiker may be attached in front of the roller to open the turf to receive the material, or behind the roller to work the applied material into the turf. In addition, the spiker aerates the turf.

Abstract: Seed drill has a row of coulters which are raised and lowered by a beam extending along and above the row of coulters and connected to the coulters by spring assemblies. The beam is raised and lowered relative to the frame of the drill by two rams to actuate the coulters. The mounting of the beam comprises an articulated joint, such as a ball joint, which permits the ends of the beam to rise and fall independently of each other relative to the frame thereby permitting improved contour following by the coulters and avoiding excessive loads on the beam in the event of failure of one of the rams.

Abstract: A method for sewing together fabric pieces which comprises the steps of sewing elastic cord-like core material such as polyethylene cord along the edge portions of two or more fabric pieces, automatically engaging the edge portions of the fabric pieces with each other by guiding the sewn core material, and sewing together the engaged edge portions to render an assembly of fabric pieces adapted for use as a cover; and a machine for sewing together fabric pieces which is provided with a core material-guiding mechanism for clamping core materials previously sewn to the edge portions of two or more fabric pieces being sewn together, thereby engaging the edge portions with each other.

Abstract: A looper comprising a looper main body of steel and a blade of cemented carbide alloy. The looper main body includes a mounting portion, a vertical portion provided at the right end of the mounting portion, a horizontal portion extending from the upper end of the vertical portion horizontally rightward and a tip portion extending downward from the right end of the horizontal portion. The blade is attached to a continuous hook-shaped recessed portion formed in the main body and defined by the inner edges of the vertical portion, the horizontal portion and the tip portion. The looper is highly resistant to wear, flexible, inexpensive to manufacture and capable of efficiently cutting chemical fibers which are difficult to cut.

Abstract: A looper apparatus for a multiple-needle tufting machine including transversely spaced loopers or hooks having spring clips or looper clips attached thereto and cooperating with knives to form cut pile and loop pile in the same row of stitching, in cooperation with a controlled yarn feed, in which the spring clips are mounted on the cutting side of each hook and extend beneath the hook to terminate in the clamping portion of the clip on the needle side of the hook, without occupying the cutting zone of the corresponding knife.

Abstract: A process for sewing the edge of a woven material to prevent fraying, by sewing alternately at least two stitches along the edge of the material and at least two stitches parallel to the edge of the material but spaced from the edge, with zigzag connecting stitches joining the two rows, where the stitches along the edge and the connecting stitches are sewn in a direction opposite to the stitches parallel to and spaced from the edge.

Abstract: A connector is disclosed for interconnecting multiple conductive layers in a printed circuit board. The connector includes a pair of elongated electrical terminals and a compliant section in between. A plurality of generally parallel raised pressure ridges are included on an outer surface of the compliant section. The connector may be advantageously divided into a plurality of semiseparate segments thereby enabling interconnection of an axially aligned track of printed circuit boards.

Abstract: There is provided a floating caisson device for placing below and transversely to the bottom of a vessel hull in engagement with the lower portions of the hull side walls for providing a dry working space, especially for joining floating hull sections by welding, comprising a bottom channel with side wall members at the ends thereof, at least one side wall member being able to be brought into sealing engagement with the hull side wall, packing for sealing between the device and the hull, and ballast tanks for controlling the buoyancy of the device. Between at least one side wall member and the adjacent end of the bottom channel there is provided a flexible transition member conforming to the curvature of the hull for sealing engagement therewith when the side wall member is moved against the hull side, the packing being continuously extending along each side edge of the bottom channel, the transition member and the side wall member.

Abstract: A float construction is formed of at least one closed storage chamber arranged to float on the surface of a body of water with walls extending downwardly from the storage chamber and forming a plurality of chambers open at the lower ends. When the storage chamber is floated, water completely fills the chambers below the storage chamber so that the natural frequency of the float construction is varied for the different vibrations to which it is exposed.

Abstract: A two and four wheel drive indicator is provided in a push-pull handle that is used for conditioning a vehicle for either two or four wheel drive operation. The indicator is actuated by a slidable rod within the handle which comes into contact with a base or supporting surface for the handle as the handle is pushed toward the base or supporting surface. A symbol, representing the four wheel drive condition, appears on a cover plate on the handle whenever the handle is actuated to condition the vehicle for a four wheel drive operation.

Abstract: A warning indicator disclosed is secured to a pneumatic tire valve to sense tire pressure and emit an audible signal when the tire pressure goes below a predetermined value. A connector of the indicator is initially threaded onto the tire valve and a cap thereof is subsequently threaded onto the connector. The connector includes a valve opener that opens the tire valve so that pressurized tire air flows to a pressure sensing valve which prevents air flow to the cap when normal tire pressures are sensed. A valve element of the pressure sensing valve moves into and out of engagement with a valve seat and is engaged by the first end of a valve actuator that also has a second end projecting toward the cap. The cap includes a housing with a spring that biases an actuating member into engagement with the second end of the actuator so as to move the valve element out of engagement with the valve seat when low tire air pressure is present.

Abstract: A mine safety inspection indicator including a plurality of rotatable wheels having indicia printed on one side thereof and attached to a panel having windows therein so that the indicia is selectively visible through the windows, and further including slideable indicators whose position is correlated with indicia for giving further information, the wheels and slideable indicators including printing members cooperable with recording paper and a pressure member so as to provide a permanent record of a mine safety inspection; the device also includes a slideable warning panel which may be moved to a position out of view or moved to a visible position for giving a warning of a dangerous condition in a mine.

Abstract: An apparatus for high speed application of locking compound to threaded fasteners. A chute guides a continuous flow of fasteners from a feeder bowl to a transporting wheel supported for rotation about a vertical axis. The wheel is provided with a magnet around its periphery which magnetically engages the heads of the fasteners to hold their threaded shanks extending horizontally outwardly from the periphery of the wheel. The fasteners are heated by induction heating and a liquid compound is applied under pressure to a controlled portion of the threads through a continuously vibrated nozzle. Heated air is then applied to drive off solvent from the compound. An air blower then applies ambient temperature air, followed by injecting a cooling air mist containing soluble oil which prevents the fasteners from adhering to each other prior to the hardening of the compound. A pick-off wheel magnetically driven by the transporting wheel separates the fasteners from the transporting wheel.

Abstract: A magnetic brush developing unit for an electrophotographic copy-machine of the type having a magnetic applicator which moves toner particles along a path passing adjacent the photoconductive element having the latent electrostatic image to be developed, in which a grid having a fine mesh is interposed in this path for separating clots of toner from the toner particles. The clots entrapped in the mesh are vibrated by the magnetic applicator till they are shattered and pass through the mesh.

Abstract: A development apparatus in which particles stored in a chamber of a housing are deposited on a latent image. Air flow is controlled to prevent leakage of the particles from the chamber of the housing.

Abstract: A development roller comprising an electrically-conductive core and an electrically-insulative surface layer is biased to retain a monolayer of conductive toner on the surface, and moved into transfer relation with an electrostatic image bearing member to develop the image. The potential level of the toner can be controlled in conjunction with the roller bias to eliminate background or effect image reversal development.

Abstract: A method for the cryopreservation of multicellular organisms characterized by rapid cooling and warming rates, exceeding 100.degree. C. per minute, to achieve 80% survival after storage in the frozen state. The method involves exposing multicellular organisms to a cryoprotectant medium, freezing the organisms and medium by cooling at a rate greater than 100.degree. C. per minute, holding the organisms and medium at a point below 0.degree. C. for a period of time, and cooling the organisms and the medium at a rate greater than 100.degree. C. per minute to an appropriate storage temperature depending upon the desired length of the storage period. The method is more specifically described with regard to aquatic organisms, and particularly described with regard to the cryopreservation of immature marine crustaceans.

Abstract: This application discloses an electronic fuel injection system in an internal combustion engine.

Abstract: A centrifugal water cooling pump unit mounted to the front cover of an internal combustion engine and is connected directly to the camshaft. The pump unit includes a special intake chamber overlying an impeller having straight radial blades with inner ends spaced from the axis of rotation. The intake chamber is formed with a spiral discharge passageway to direct the water spirally about the impeller axis of the impeller, with the water introduced into the impeller adjacent the radially inner ends of the radial blades. A pair of shaft seals are provided in the front cover with a telltale opening therebetween to indicate leakage from the water pump. The impeller is formed of plastic to the end of the pump shaft by a clamping nut. A bell-shaped washer is interposed between the impeller and nut to limit the pressure made on the plastic impeller.

Abstract: An injector arrangement is disclosed for injecting a prevaporized fuel-air mixture into the cylinder of an internal combustion piston engine, the injector comprising an auxiliary piston and cylinder arrangement associated with each cylinder of the internal combustion engine and adapted to act as the combustion chamber for the piston and cylinder with which it is associated, as well as to inject a charge of compressed prevaporized fuel into the auxiliary cylinder acting as a combustion chamber. The compressor arrangement includes an auxiliary double acting piston disposed in the auxiliary cylinder, which cylinder is in communication with the main cylinder at its top, the auxiliary double acting piston being reciprocated by a linkage driven by the engine so as to be reciprocated at one-half the cyclical speed of the reciprocation of the main piston and cylinder.

Abstract: The variation range defined between the maximum and the minimum output voltages of a gas sensor in the exhaust passage is detected and compared with a reference signal which can have hysterisis characteristics. Engine operational parameters are utilized to disable and/or reactivate the system as well as the sensed sensor response, while the air-fuel ratio can be arbitrarily varied to test if the sensor is below an effective working temperature and reactivate the system.

Abstract: Charge forming apparatus for an internal combustion engine of the type in which a fuel dispersion gap is subjected to impingement by an inducted air stream is provided with pneumatic control means for varying the area of the fuel dispersion gap. An additional feature of the invention includes regulation of back pressure on the fuel.

Abstract: A spark ignited internal combustion engine having a carburetor and a mechanical refrigeration system improved with means for cooling the fuel inducted into the carburetor.

Abstract: A device is provided for controlling the flow of exhaust gases of an internal combustion engine in accordance with the operating conditions of the engine. Exhaust gases flowing from the exhaust manifold are routed either directly to the muffler or to a heat exchanger for heating the intake air/fuel mixture. The device includes a housing having ceramic valve which is rotatable in the housing and which has two parallel gas passages separated by a web-like wall. In a first rotational position of the valve, the flow of gases is directed from the manifold through both passages and directly out to the muffler. When the valve is in a second rotational position, the flow of gases is directed through one of the two passages and into the heat exchanger. From the heat exchanger, the flow is directed back through a return line into the second passage of the valve and thereafter to the muffler.

Abstract: A device is provided for controlling the flow of the exhaust gases of an internal combustion engine in accordance with the operating conditions of the engine. Exhaust gases flowing from the exhaust manifold are routed either directly to the muffler or to a heat exchanger for preheating the intake air/fuel mixture. The device includes an aeromechanical element having a nozzle-like constriction opening into an enlarged passage. A pair of outlets, connected to the muffler and heat exchanger, branch off from the passage following the constriction. The flow of gases is selectively directed through one of the two outlets by means of control line connections in the enlarged passage, which are supplied with either pressure, negative pressure, or both as the means for deflecting the flow.

Abstract: A device for creating a sparking voltage across the electrodes of a spark plug of an internal combustion engine comprising a rotatable member carrying a permanent magnet having an outwardly extending flux field movable in an annular path, a transformer having a first winding for creating a current change of a spark creating level and a second winding connected across the electrodes, a Hall Effect switch activated by a D.C. biasing voltage and having an output energized when the switch is exposed to a flux field, switching means for rapidly changing current flow in the first winding only when the switching means is actuated, means for actuating the switching means when the output of the Hall Effect switch is energized, and means for mounting the Hall Effect switch at a selected location where the switch is exposed to an actuating flux from the rotating permanent magnets when the rotating member is at a selected angular position. In accordance with another feature, the D.C.

Abstract: An improved ignition system including a member rotatable about an axis and having a permanent magnet with an outwardly extending flux field carried by the member to create a flux field rotating in a given angular path concentric with the axis of the rotating member. In the system there is provided a circuit for creating a sparking voltage upon a rapid change in current in at least a portion of the circuit and switching means for causing the rapid change in current upon actuation of the switching means. The improvement includes a device for storing sparking energy, the switching means includes a solid state device for discharging the storage device upon receipt of a firing signal and a Hall Effect switch activated by a selected D.C. biasing voltage and mounted at a given position with respect to the annular path of the rotating flux field. The Hall Effect switch initiates the switching means to discharge the storage device and cause sparking of the ignition system.

Abstract: A lasso gun used in accurately propelling a lasso toward a target is described. The lasso gun has a barrel. Communicating along the longitudinal axis of the barrel is a piston which has a front lasso holder attached. The barrel is provided with a spring. When the piston is slid from the discharge end of the barrel towards the other end, the spring is put under tension and when released the piston is forcibly slid back towards the discharge end of the barrel. An arm is pivotally mounted on the underside of the barrel. The arm has a rear lasso holder attached to its free end. The loop of a lasso is placed around both the front and rear lasso holders, the piston pushes away from the discharge end of the barrel tensing the spring and the arm is swung back away from the discharge end of the barrel. When released or fired, the piston is propelled forward and the forward motion transferred to the lasso loop.

Abstract: A safety device for use on the top of a stove or in combination with a range. The safety device comprises a plate pivotally mounted on the front of the stove, which plate is adapted to be pivoted to a horizontal position overlying the front burners of the stove. The purpose of the device is to prevent small children from touching the hot front burners of the stove or from pulling any pots or pans on the front burners of the stove onto himself.

Abstract: An air-heating solar collector having a plurality of parallel, spaced-apart, substantially coextensive translucent sheets and a convoluted air passage passing in succession between successive pairs of said sheets, the air finally passing over a blackened absorber plate, whereby heat escaping from the absorber to the sheets is picked up by air flowing in the convoluted air passage.

Abstract: The invention relates to a solar energy pick-up employing a stream of water, comprising an inclined surface on which substantially regular obstacles are arranged against the flow of the water arriving at the top of the inclined surface and collected at the bottom thereof, wherein the walls of the obstacles are reflecting and define channels for the passage of the water, whose depth is greater than five times their width.

Abstract: A solar energy collector comprising a pair of manifolds for coupling one or more solar energy collectors thereto. The manifolds are provided with connectors including "O" ring sealing means for slideably receiving and connecting the open ends of collector tubes thereto.The manifolds are maintained within housings filled with foam insulation means for supporting the manifolds within the housings. Mounting brackets are coupled to the housings for facilitating securement of the housings to any suitable supporting surface. The housings and their respective manifolds are designed and arranged so as to facilitate simple and rapid installation, removal and reassembly of the collector tubes and may be spaced so as to accommodate tubes of varying lengths.

Abstract: A solar radiation collector for generating useful heat in a liquid, comprising an essentially horizontal liquid infeed line and a liquid outfeed line. A heating device for heating the liquid incorporates radiation absorbing, mutually spaced tubes interconnecting the infeed line with the outfeed line, the lengthwise axes of the tubes each coinciding with a focusing axis of an associated mirror or reflector, all of the mirrors being rotatable about their focusing axis in order to focus the incident solar radiation upon the associated tube. The heating device is mounted as a unit in a completely closed hollow compartment. The infeed and outfeed lines are embedded as supporting reinforcement means in the longitudinal walls of the hollow compartment, and these longitudinal walls in conjunction with the transverse walls interconnecting such longitudinal walls form a self-supporting frame construction for the front window and the rear closure wall of the hollow compartment which contains the heating device.

Abstract: A ventilator for cooking units particularly of the kind having a forwardly disposed cooking area and a rearwardly disposed, upstanding flue, as for exhausting of combustion products. The ventilator comprises a free-standing floor-supported hood of rectangular box shape and opens forward and downward to receive the cooking unit removably therein. The hood is formed by boxlike inner and outer shells opening forwardly and downwardly with their top, back and opposite side panels spaced to define a single continuous air flow space therebetween. The air flow space is closed except for an inlet adjacent the rear of the hood and an outlet comprising an inverted U-shaped slot disposed near and extending along the front edges of the top and side panels of the inner shell to face into the cooking area and having a pair of flow directing louvers extending therealong. A U-shaped perforated baffle between the shells separates the front and rear parts of the air space.

Abstract: A variable intensity whistle is formed by a cylindrical chamber having apertures in opposite ends. The centers of the apertures are off set with respect to the cylinder axis and the chamber is formed in two parts which are rotatable relative to each other to either align the apertures and displace them by predetermined amounts.

Abstract: A blood collection assembly for taking a blood sample from a blood source. The assembly includes a double ended hollow cannula open at both ends and mounted in a hub. A hollow evacuated blood collection tube is provided having an opening at one end. A stopper is mounted in the open end of the tube to seal the tube and maintain the vacuum therein. The hub includes a gripping surface for facilitating the holding and directing both ends of the cannula, one end into communication with the blood source and the other end into communication with the evacuated collection tube. The cannula is coupled with the stoppered tube in position for insertion of the other end thereof into communication with the interior of the stoppered tube after the one end has been connected to the blood source to permit blood to flow through the cannula into the tube for collection.