Abstract: A system for detecting the edges of a moving object is disclosed having a high flux density light beam directed through two relatively long narrow light beam apertures and focused on a detector to saturate the output of the detector. When the moving object interrupts the light beam, the detector remains saturated until the moving object nearly intersects the entire light beam to thereby deactivate the detector at a precisely defined predetermined location within the light beam. The moving object reactivates the detector when its trailing edge intersects the light beam at a second precisely defined location within the light beam. An amplifier operating in saturation mode is coupled to the output of the detector to provide the added feature of switching its output when the object is at very precisely defined locations within the light beam.

Abstract: A method and apparatus for abatement of excess gasoline vapor emissions which occur during transfer of service station liquid gasoline from one storage tank to another storage tank, such as the transfer of gasoline at a gasoline service station from a gasoline storage tank truck to underground gasoline storage tanks and also from underground gasoline storage tanks to an automobile or vehicle storage tank through a gasoline pump station. Vent outlet pipes of the underground storage tanks are manifolded to a common vent pipe, where the vapor pressure is sensed and upon reaching a predetermined vapor pressure, (normally slightly below atmospheric) vapors are directed along a path from the vent pipe to a burner means. Gasoline vapors are directed to the burner by means of suction produced by an ejector using compressed air and an air-fume mixer so that substantially complete combustion of the resulting vapor air mixture will occur in the burner means.

Abstract: A pre-assembled unitary bay window construction having a plurality of window frames with related sash held in assembled relation by a peripheral frame structure, the frame structure being receivable in a wall opening and secured therein. The unitary window construction is prefabricated and may be handled as a unit. When used at a kitchen patio window above a kitchen counter, the counter space is extended outwardly, is protected from outside weather, yet can be utilized as an outside counter for eating purposes.

Abstract: An improved constant volume flow device wherein the device includes a body defining a flow passage with an inlet portion and an outlet portion. The body is adapted to conduct a flow of fluid through the passage wherein such flow has a varying pressure at the inlet portion. A restricting member in the flow passage for axial movement therealong to regulate the fluid flow through the passage is also provided. The improvement includes the provision of means for varying the value of the constant volume of fluid flow of the device. Further, a progressively decreasing portion may be formed between the inlet and outlet portions and this shape, as affected by the varying value means, may be given by formulas.

Abstract: A rotating display having a plurality of display members connected by support elements, the display members being of progressively larger sizes, nested one within another to form an array. Each display member has many open areas, preferably being made of angularly spaced wire meridians formed in a generally spherical shape, so that the inner display members are at least intermittently visible to an observer during rotation of the array on a driven shaft coupled to the outermost display member. The structural elements of each display member are colored, preferably with fluorescent pigments of various hues creating a varicolored dynamic visual impression when illuminated by ultraviolet or "black" light during shaft rotation. The support elements are preferably made of thin flexible wire virturally invisible when the display is so illuminated, the flexibility of the support elements permitting random movement of the display members relative to one another during rotation of the array.

Abstract: A plurality of glass slides having specimens such as blood smears disposed thereon are prepared for microscopic viewing by an apparatus which automatically applies preparation solutions to the slides such as stains and buffers and thereafter automatically drys the completed slides. The staining and buffering solutions are deposited evenly over the surfaces of the slides carrying the specimens by a timed operation of one or more electromechanically actuated aerosol dispensers which produce fine sprays of the desired preparation solutions. Simultaneously with the generated spray, the plurality of slides are rotated at a relatively slow rate to cause a uniform distribution of the spray particles on the slide surfaces. Following the staining and buffering mode, an automatic drying mode is initiated in which the plurality of slides are rotated at a relatively higher speed for a timed interval after which the apparatus automatically turns off and the completed slides may be removed from the apparatus.

Abstract: A push door-latch opener suitable for hospital rooms including a door mounting plate, a horizontal pivoting rod attached to the plate, a vertical pivoting rod attached to said plate and located above the horizontal rod, a horizontal bell crank pivoted about said vertical rod and having a first arm projecting into the plane of the door and a second arm being substantially parallel to the plane of the door, a torsion spring for biasing said bell crank in a direction so that the second arm is biased in the direction of the first arm, and a downwardly-directed push handle pivoted about said horizontal rod and being biased to a first out position and being adapted to be pushed to a second in position, the push handle having above the horizontal rod an upwardly-directed projection which engages the inner surface of the second arm of the bell crank so that when the push handle is pushed, the projection turns the second arm away from the door and simultaneously turns the first arm, thereby operating a latching mechan

Abstract: A skate board wheel brake assembly is shown having a foot activated, resilient brake arm secured near the rear end of a skate board with the arm having a first portion having brake shoes thereon and formed to be in close proximity to the rear wheels of the skate board and a second extended portion having a brake depressor formed at the end thereof, so that downward pressure by the user on the brake depressor causes the brake shoe to apply braking force to the rear wheels of the assembly. In one embodiment, the skate board wheel brake assembly may be mounted to a skate board having conventional wheels mounted thereon. In a second embodiment, the skate board wheel brake assembly includes the rear wheels and is attached to the rear end of a conventional skate board. In a third embodiment, the brake assembly is molded to be integral with the skate board.

Abstract: A solar panel construction including an elongated, sealed, flat, polygonal case or receptacle within which is supported a metal solar energy collector panel on rigid permeable insulation material and also relatively soft yieldable permeable insulation material and a radiant energy transmitting means is spaced above the collector panel, the construction being hermetically sealed and dehumidified and particularly arranged to yield under conditions of temperature extremes without loss of hermetic sealing and loss of efficiency. A method of preconditioning such a solar panel construction to obtain optimum effectiveness between temperature ranges to which the panel construction will be subjected.

Abstract: A hydrostatic pump/motor unit has a cylinder system that is positively controlled by a relatively revolving porting means having suction and pressure ports separated by dead center areas therebetween which are interconnected by canal means for compensating the pressure between cylinder ports of the system which have left communication with the suction port and cylinder ports which have left communication with the pressure port wherein the ends of the canal means are provided with openings in the dead center areas that are larger than the distance between cylinder ports and the circumferential distance between such openings and the pressure port and between such openings and the suction port on both sides of each of said openings is greater than the diameter of the individual cylinder ports so that an exchange of pressure occurs first between neighboring cylinders passing over one of the openings and then between such neighboring cylinders and the non-adjacent cylinder in the other dead center area.

Abstract: A method of increasing the resistance of delicate, elongated objects made of polymeric compositions, to fracturing, shattering, and splintering during application of stress forces during cutting, shearing or grinding, thereby permitting the formation of shorter finished objects with appropriately and smoothly contured ends from a long stock object. Differently stated, the present invention relates to a method of preparing an elongated, rod-like object composed of several plastic, polymeric compositions, having channels formed therein and extending longitudinally thereof, for subsequent cutting of such long object into short lengths with desirably shaped end surfaces.

Abstract: A pumping system for a plurality of recirculating toilets sharing a common tank is described. A variable volume pump has a by-pass valve which is controlled by a pressure sensor in the flush line, to prevent excessive fluid pressure at the toilets. For applications in which the total number of toilets in the system requires a flow exceeding the output of a single pump, additional, substantially identical pumps are provided. A time delay circuit is connected to a pressure switch for energizing a second pump, if the fluid pressure at the toilets does not exceed a predetermined pressure within a set time interval.

Abstract: A single point suspension device for filing sheet material in parallel vertical planes within or without a cabinet construction in which a horizontal support bar has a sidewardly opening longitudinal recess defined in part by a sidewardly extending hook and in which is received a suspension member attached to upper edge margins of sheet material to be filed. The suspension member includes a sidewardly directed recess defined in part by a hook, the hooks and recesses of the suspension member and the support bar being correspondingly configured for substantially complete interlocking interengagement along correspondingly configured surfaces and whereby the interengagement is accomplished with relative horizontal movement of the bar and suspension member, and wherein the interlocking engagement restricts angular relative movement of the support bar and suspension member.

Abstract: Improvements in flotation means for subsea well riser wherein the riser is run from a floating vessel and includes one or more buoyancy chambers open in the lower portions thereof to the sea and a gas injection line runs from the vessel to each of the chambers for injecting gas from a source thereof under pressure into each such chamber. The improvements include the provision of means for controlling the bleeding off of gas from within each of the chambers to reduce the buoyancy thereof thereby making the flotation of the riser completely adjustable. A check valve may be provided between the injection line and the chambers for limiting the introduction of gas into the chambers from the injection line until a predetermined pressure of the gas in the injection line is reached.

Abstract: There is disclosed a fired ceramic article such as a mold or die having no surface flaws; a uniform open porosity of at least 20% by volume, average pore size in the range of 1-10 microns, high abrasion resistance, a modulus of rupture of at least 4,000 psi; the fired article being substantially the same size as the corresponding unfired article and consisting essentially of 30 to 90% by weight of refractory abrasive particles such as alumina and 70 to 10% by weight of glass particles, said glass particles containing crystals grown during firing of the article, thereby greatly increasing the strength of the article, said particles being bonded by sintering while said particles are in the solid state.

Abstract: A massaging system for application to the body for simulating muscular contraction in enhancing flow of venous blood and lymphatic fluid. The system includes a flexible pad having fixed to one face thereof a set of elastic tubing coil portions forming part of a recirculating hydraulic system including a pump for creating pulsating fluid flow. The segments of elastic tubing between the tubing portions fixed to the pad are disposed in substantially parallel relation, spaced from the fixed portions, and are supplied to a part of the body to be treated so that pulsations of fluid flow in the elastic segments are directed cardiocipetally, i.e. toward the heart. Thus the pulsations are transmitted through the wall of the elastic tubing segments and through the patient's skin and adjacent tissue, and are applied to the muscle.

Abstract: A single continuous loop safety belt harness assembly for a vehicle has a retractor which is attached to a first end of a safety belt harness for retractably storing and adjustably anchoring the safety belt, and which is mounted in a rearward position upon the vehicle door. A belt guide is provided for receiving the belt extending upward from the retractor, and for directing the belt in a downward direction diagonally across the torso of the occupant seated in the vehicle. A second end of the belt is attached to a lower portion of the door by means of an anchor.

Abstract: Method and device is provided for recording the swing of a golf club over a mat and permitting the analysis of the depth of the swing, the arc of the swing and the angle of the face of the golf club head when it contacts the mat. A resilient mat is covered with a thin film of chalk dust and a golf club having an attachment secured to the golf club head capable of dispersing the dust on the mat when it contacts the mat. The dust is dispersed in a pattern on the mat, which due to the attachment, permits analysis to determine the foregoing. The mat may also be provided with indicia related to a golf ball and the equivalence of making a divot by the golfer may also be determined.

Abstract: An animal feeding receptacle comprising a holder having a bowl shape for supporting, holding and storing a quantity of nested correspondingly bowl shaped liners in upwardly facing position, and an adjustable sleeve retainer for holding said quantity of liners in nested relation in the holder, slidably frictionally fitted with the holder, exposing the uppermost liner for use while protecting circumferential edges of the nested liners, and having a flange for facilitating removal of the sleeve retainer from the bowl shaped holder and the quantity of separable liners.

Abstract: Single component liquid mercaptan containing polymers having at least two terminal mercaptan groups can be cured rapidly by exposure to atmospheric oxygen in the presence of (1) a thiuram and an iron or manganese salt, oxide, hydroxide or metal complex or (2) an iron or manganese dithiocarbamate. A synergistic effect is obtained when calcium peroxide is added to either or both of the above curing systems.