Abstract: A fuel vaporizer carburetor provides a continuous mixture of vaporized fuel and combustion air for operation of an internal combustion engine to meet the requirements of a wide range of engine operating conditions. Fuel vapor and combustion air undergo turbulent intermixing in an elongated mixing chamber. The mixing chamber is enclosed by a tubular wick of fiber mesh material which is saturated with fuel vapors and fuel condensate. The fuel vapors are generated by heating fuel in a float bowl which underlies the wick. Combustion air is admitted through a plurality of angularly spaced openings and is conducted through the porous flow passage provided by the tubular wick prior to entry into the mixing chamber. This arrangement produces a cyclonic, whirling movement which promotes intermixing of the combustion air and fuel vapors. Turbulence is induced at an intermediate point in the mixing chamber by a tapered sidewall housing section.

Abstract: An exhaust gas recirculation control system employs a flow rate valve in the recirculation line. The valve is operated by suction pressure obtained from two suction ports in the engine intake passage. Suction lines from those ports contain air inlet valves which dilute the suction pressure with atmospheric air, depending upon engine operating conditions. A fuel supply increasing valve is connected to a venturi in the engine intake passage and suction operated control means control operation of that valve. The result is an improved acceleration characteristic for the engine under load without substantial increase in discharge of pollutants into the atmosphere.

Abstract: A magneto ignition system having inherent means for providing operating biases for components thereof at temperature extremes is disclosed. The disclosed ignition system includes an ignition coil (10) having primary and secondary coil (12, 14) a solid state or semiconductor switch (24) being connected across the primary coil (12) for switching the current therein, and drive and trigger coils (20, 34). The semiconductor switch (24) is driven toward a nonconductive state, to cause an ignition impulse in the secondary coil, by semiconductor latching device (32) which shunts the signal from the drive coil (20) to ground (38). The semiconductor latching device (32) is activated by a trigger coil (34), having a separate magnetic flux path.In order to provide reliable switching at extremes of ambient temperature, means (22) responsive to the common magnetic field of the primary coil, the secondary coil, and the drive coil are provided to effectively provide operating bias to the latching device (32).

Abstract: Cable ends of a compound bow are adjustably anchored by an attachment member pivotally mounted adjacent the bow eccentric wheels. The attachment member includes a plurality of openings therethrough which are angularly offset relative to one another to define alternate circuitous cable pathways. A releasable lock device engages the cable end in one of the attachment member openings while a laterally offset section on the attachment member allows alternative 180.degree. reversible mounting thereof.

Abstract: The present invention provides an improved weapon such as a rifle or a pistol including a system of levers that are displaceable laterally towards the front part of the weapon for operating structure for the intake and compression of the compression air used in the weapon. The barrel for the weapon is axially displaceable on a slide by utilizing the displacement of the piston for the intake and compression of air. Sealing structure is provided on the breach of the barrel in the form of a tablet-shaped packing that also insures the correct insertion of the ammunition.

Abstract: A barbecue oven for hickory smoking large quantities of meats with quality results; the oven including an oven component with chimney thereupon, the oven having automation controls and a large doorway, so that a truck loaded with meats on racks can be rolled directly into the oven.

Abstract: A cooking gas oven of the type with a heating housing having a door on its front and a combustion chamber of forcible exhaust type disposed below the heating housing. A burner is provided in an oven main body. There is formed in the combustion chamber, an intake passage for introducing the external air from an air intake opening in an outside surface of the combustion chamber, into a position of the burner. In the passage, there is a regulating plate for flowing the air over the burner at accelerated speed.

Abstract: This is a new fireplace, which is either constructed in place or is totally prefabricated in advance and placed within a building where desired. The fireplace is particularly characterized by a pair of overlapping hollow members placed within the throat of the fireplace above the combustion chamber, wherein one of the hollow chambers receives cool air which is heated and then expelled for use, and a second chamber in which an arrangement of tubular members is embedded carrying water into the tubular arrangement for purposes of heating and then bringing the water out of the fireplace. A humidifying liquid is presented into the first chamber and an adjustment for changing the size of the throat is also provided. A method of constructing and assembling the fireplace, or combustion apparatus, in such a manner that it can be prefabricated away from the site of installation.

Abstract: An improved control system for a pulse combustion apparatus is disclosed. The system includes starter means operable to activate blower means for starting the apparatus. First switch means is provided and is responsive to a first predetermined air velocity in the air intake of the apparatus as representing satisfactory operation of the blower means. The first switch means is coupled to and adapted to activate the gas supply means and ignition means of the apparatus when the first predetermined velocity is achieved. Second switch means is also provided and is responsive to a second predetermined air intake velocity representing establishment of combustion in the combustion chamber and adapted to deactivate the ignition means and blower means while maintaining the gas supply when the second predetermined air intake velocity is achieved.

Abstract: A solar energy system for heating water is disclosed. The system comprises a closed piping circuit in which water is pumped through a heat exchanger and storage tank which are not exposed to freezing temperatures up through a solar collector which may be so exposed. Protection against damage from freezing is provided by enabling drain-back of the water from exposed portions of the system and replacement with air when there is no water circulation.When water is circulating, a surge pipe bypassing the storage tank provides unimpeded flow of the full volume of water while extracting entrained air which is conveyed to the storage tank. Thus, solar-heated water does not flow through and is not stored in the storage tank during operation of the system, and the cost and inconvenience of insulating the storage tank in order to inhibit large energy loss is avoided.

Abstract: A strip for forming a solar energy panel is disclosed. The strip has a configuration such that it interlocks with heat transfer conduits and adjacent strips can be interlocked together to form panels. The panels so formed can serve additionally as a roofing material.

Abstract: The present invention discloses herewith guide tube with favorable flexibility and water-tightness. A water-tight coating is provided on at least one side of the inner and exterior surface of a porous tube which bends continuously keeping its tubular shape. By these provisions, a guide tube is obtained which is easily inserted with an endoscope into a body cavity or is smoothly inserted into bronchia as an anesthetic tube.

Abstract: An orthopedic appliance comprises a pair of bar-like members pivotally connected together in the vicinity of respective ends thereof, and plate-like members adjustably connected to respective free ends of the bar-like members for connection to the shoes of a patient. A scale is provided at the pivotal interconnection of the bar-like members to indicate the relative orientations of the bar-like members. A locking device is provided to lock the bars at their desired relative positions.

Abstract: A lower extremity splint for use with a conventional traction apparatus to achieve a balanced single point suspension and traction of the lower extremity of a user, the lower extremity splint having a sling supported by a skeletal frame structure conforming to the outer periphery of the user's lower extremity, the frame structure being formed by two substantially parallel articulated primary members arrangeable on each side of the user's lower extremity, the primary members each having an articulation joint substantially centrally located, dividing each primary member into an upper thigh segment and a lower leg segment, the primary members being interconnected by a cross member between the distal end of the lower leg segment, a bridge member between the proximal end of the upper thigh segment and a bridge member between the articulation joint, wherein the splint is independently suspended from the traction apparatus.

Abstract: Improved surgical drape (20) comprises a flexible, drapable main sheet (22) having a fenestration (30) therein, a closure member (38, 40), and means (34) for movably securing the closure member (38, 40) to the main sheet (22) for selectively obstructing at least part of the fenestration (30).

Abstract: A plastic medical respiratory conduit is provided having a first tubular helical coil conduit communicating with a first source of fluid. The coil conduit is wrapped with a pliable tape to form a second conduit communicating with a second source of fluid. Resilient couplers can be attached to each end of the conduit to form part of a medical ventilator or humidification system, the resulting ventilator or humidification system providing heretofore unavailable advantages.

Abstract: An apparatus for supplying oxygen to a person at a mine site upon the depletion of atmospheric oxygen or the filling of the air with smoke or dust particles or poisonous fumes comprising a helmet having a visor shiftably mounted thereon for normally assuming an out-of-use position and for assuming an in-use position over the face of a user upon manipulation thereby. An oxygen-containing vessel is attached to a belt worn by the user, with a conduit connected at one end to the vessel and at the other end to the visor for forming a gas-guiding channel between the vessel and a space formed between the face of the user and the visor upon a shifting thereof into the in-use position.

Abstract: A device for precise metering of liquids for intravenous delivery to a patient and its method of use, the device including a pumping chamber with a reciprocable diaphragm positioned therein such that the cross-sectional area of the liquid flow path through this chamber is approximately equal to the cross-sectional area of the inlet and outlet of the chamber. The device also includes check valves positioned at the pumping chamber inlet and outlet and a gas retention chamber having an upper portion providing for the formation of the gas-liquid interface and a lower portion from which liquid free of gas bubbles may be removed.

Abstract: A douche nozzle for expanding the vaginal canal and contacting the walls of the canal with either a slightly acidic or basic solution before sperm injection and during ovulation for the purpose of increasing the likelihood of selectively conceiving either a female or male baby. A process for selectively conceiving a male or female baby by injecting the appropriate solution into the vaginal canal using the douche nozzle of this invention.

Abstract: A flexible, flat-collapsible bag containing parenteral solution may be adapted for aseptically receiving and mixing the contents of another container, with the flat-collapsible bag preferably initially containing, prior to receiving said contents, a liquid for parenteral administration in a volume of 30 to 70 percent of the holding capacity of said flat-collapsible bag. The bag defines at least a pair of access ports, one of the ports being sealingly connected to flexible, crimpable, thermoplastic tubing of a length of at least 11/2 inches, and a sealed connector member carried on the outer end of the flexible thermoplastic tubing, in which the seal connector member defines a sleeve including a sealing diaphragm in the bore thereof, with the sleeve constituting an extension of the flexible thermoplastic tubing. Accordingly, a piercing spike may sealingly enter the sleeve to rupture the diaphragm.

Abstract: An improved disposable diaper containing a shaped absorbent pad. The pad has an indentation disposed along each long side nearer one end of the pad than the other. The front half of each indentation is arcuate and the back half of each indentation is triangular in shape. The sides of the pad immediately adjacent the indentations in the central portion of the pad are parallel to the center longitudinal line.

Abstract: A sanitary napkin is provided in which the pressure sensitive adhesive means utilized for attachment of the napkin is covered by a pattern of nonpressure sensitive adhesive which is selectively positioned over the pattern of the pressure sensitive adhesive located on the garment facing side of a sanitary napkin.

Abstract: The present invention relates to trephines and in particular to trephines used in corneal grafting.

Abstract: A medical tube holder and its method of use are disclosed. The holder has a backing strip having front and back faces, a portion of the back face being adapted to adhere to a substrate, such as a surgical drape. The backing strip has preferential tube receiving locations and is movable between a folded and unfolded position. Members possessing a mutual magnetic attraction are mounted on the front surface of the strip for mutual engagement when the strip is folded. The tubing is secured within the preferential receiving locations between folded sections of the strip when the strip is in its folded position.

Abstract: Therapeutic waistcoat for the treatment of ailments in the cervical and neck-arm region, e.g. cervical syndrome, omarthrose, periarthritis. The waistcoat tightly encloses the entire upper part of the body and has a collar part at least twice as long as the neck. The collar folds down to form a stiff collar; if desired, an additional neck support may be inserted into it. With or without additional neck support, the collar is dimensioned in a way to assure contact pressure by the collar part on the entire neck region up to the jaw and the base of the skull. The fabric of the waistcoat, including the collar part, consists of an electrostatically active knit made of a mix of polyvinyl chloride and acrylic fibres. The supporting effect applied in the neck region in combination with the increased heat effect caused by the contact pressure results in a therapeutic effect in the cervical range which radiates to the areas of the shoulder and elbow joints.

Abstract: An ultrasonic wave probe comprises an ultrasonic wave transmitting vibrator and a pair of ultrasonic wave receiving vibrators in order to measure blood flow velocity. The receiving vibrators are adapted to receive reflected waves of an ultrasonic wave which is emitted from the transmitting vibrator and reflected from a measured point at different receiving angles and the difference between the receiving angles of the receiving vibrators is always kept to a given value. The ultrasonic wave probe further includes an ultrasonic wave transmitting and receiving vibrator for measuring blood vessel diameter deviation at the same time as the measurement of the blood flow velocity.

Abstract: A tissue photoradiation system uses a hematoporphyrin or hematoporphyrin derivative dye in tissue to be irradiated and arranges a xenon ion laser 10 for simultaneous lasing. Deep blue light is produced at wavelengths of about 406-427 nanometers and red light at a wavelength of about 627 nanometers by using partially transmitting mirrors 12 and 13 arranged at opposite ends of the laser resonator. Mirror 12 has a coating 14 that substantially reflects blue light and partially transmits red light to produce a red light output, and the coating 15 of mirror 13 substantially reflects red light and partially transmits blue light producing a blue light output. The blue light output is transmitted to a diagnostic tissue irradiator 21 to illuminate the tissue and diagnose its condition. A transmission system using an optical fiber 25 delivers the red light to the tissue for treatment purposes. The red light is radiated out the side of an optical fiber region 30a to be directed into large area of tissue.

Abstract: Method and apparatus for arrhythmia analysis of Holter-type ECG recordings including a tape playback unit having an analog signal output of successive ECG complexes or heart beats, a converter for generating data composites representing each complex, a computer for making and storing data templates in bins corresponding to operator classification of complexes as normal, supraventricular ectopic (SVE), ventricular ectopic (VE), or unknown, for comparing successive composites with stored templates and conditions to determine a match condition, and for signaling a corresponding event to an event counter and display. In learn mode the computer signals the tape playback to stop and to display an unmatched complex for operator classification and possible subsequent generation of a new template, after which scanning is resumed.

Abstract: A prosthesis electrode for electrically stimulating body tissue. The electrode has a metal tip covered by a non-metallic coating composed of a compound of the metal in the tip. Covering the non-metallic coating is an ion-conducting membrane which prevents the metal tip and the non-metallic coating from contacting the body tissue. The membrane comprises a specific ion-conducting inner membrane layer which prevents transference to the body tissue of ions in the coating which enter into undesirable reactions with the body tissue. On the outside of the inner membrane is a non-specific ion-conducting outer membrane layer which is non-toxic to body tissue and which prevents changes in salt concentration in the body tissue adjacent the electrode during a biphasic pulse of the electrode.

Abstract: A machine for simultaneously producing two continuous cigarette rods, in which two different units cooperate with each other to form the above two cigarette rods, the first of said units forming two equal strips of paper starting from a single continuous web, and the second of said units forming two substantially uniform and equal fillers of shredded tobacco starting from a single inlet hopper.

Abstract: A strip guiding device particularly suitable for being used with cigarette manufacturing machines for the automatic forward movement of at least a strip along a substantially U-shaped path, the said device comprising a hollow pulley around which a central curved section of the said path extends, at least a chamber disposed along the said path downstream with respect to the said pulley and suction means communicating with the said chamber and with the interior of the said hollow pulley, the walls of this latter which extend along the said path being perforated, and an air-permeable belt conveyor extending at least along the perforated wall of the said chamber.

Abstract: This invention relates broadly to an improved process for expanding tobacco and involves certain modifications of the basic process for expanding tobacco comprising the steps of (1) contacting the tobacco with liquid carbon dioxide to impregnate the tobacco with the liquid carbon dioxide, (2) subjecting the liquid carbon dioxide-impregnated tobacco to conditions such that the liquid carbon dioxide is converted to solid carbon dioxide and (3) thereafter subjecting the solid carbon dioxide-containing tobacco to conditions whereby the solid carbon dioxide is vaporized to cause expansion of the tobacco. The present invention pertains, in one embodiment, to an improvement in the basic process which involves controlling the moisture content of the tobacco which is employed in the first step of the basic process.

Abstract: A comb and nail file unit utilizes a comb-like device having a plurality of teeth extending outwardly, in parallel relationship, from a spine portion of the comb-like device. A blade-like nail treatment device, similar to a nail file or knife, is removably and hingeably secured to the spine portion of the comb-like device and is recessable in an elongated slot located in such spine portion. The blade, when extended outwardly from the spine portion, may be locked in such extended portion, by engaging a slot formed by closing together two parts of a housing. The housing removably secures the comb in a cavity formed by the two parts, when closed. The housing also secures a pair of mirrors, one of which is hingeably secured to the other and extensible outwardly of the housing when the housing is either in a closed or open condition.

Abstract: A device for cleaning small objects, such as dentures, in a tank containing cleaning fluid is provided. The cleaning fluid is electromagnetically agitated. A removable basket having a perforated bottom is positioned in the tank. Releasably coupled to the bottom of the basket is a basket insert which also contains a perforated bottom. A removable screen is mounted between the basket and basket insert.

Abstract: An umbrella having a pocket or purse compartment as a part thereof. The pocket consists of first and second lengths of fabric of substantially the same width and length, secured in overlapping relationship and attached at one end thereof to the fabric cover of the umbrella. A length of zipper tape is secured to one of the lengths of fabric so that the lengths of fabric and zipper tape form a pocket or purse compartment for money and the like within the lengths of fabric.

Abstract: A gas valve for attachment to a gas line for preventing flow of gas subsequent to a vibration shock of a predefined limit, the valve having a ball and pedestal trip mechanism wherein the ball, in set position on the pedestal, supports a lever connected to a flap closure which drops to a closed position on displacement of the ball from the support pedestal, the valve having a reset mechanism and multiple support pedestals for selection of a desired strength setting.

Abstract: A pneumatic converter comprising a bellows having in its interior a coupling plate connecting the two ends of the bellows together at a position offset from the center axis of the bellows.

Abstract: A device for adding a second fluid to a first flowing fluid in a fixed ratio regardless of the flow rate of the first fluid. The device comprises a venturi section having an inlet, an outlet and a throat therebetween through which the first fluid flows, and a regulating section that modulates the pressure of the second fluid such that the amount of second fluid delivered to the venturi throat is a fixed proportion of the first fluid flowing through the venturi section regardless of the flow rate of the first fluid. The device has particular application for adding anti-icing fluid to liquid fuel during filling of aircraft fuel tanks.

Abstract: A solenoid-actuated drain valve for a compressed gas reservoir of a diesel locomotive in which the valve element is a differential piston exposed on opposite faces to reservoir pressure for normally holding the valve closed and minimizing the opening force required to be exerted by the solenoid, a temperature-responsive heating element protects the valve against freezing, a sensing element senses accumulations of water from the compressed gas in the reservoir, and actuation of the heater and energizing of the solenoid for opening the valve are both controlled by a solid state circuit which prevents opening of the valve except when the sensing element senses accumulated water.

Abstract: A water limer includes a hopper which is periodically impacted to vibrate and loosen the lime and dispense it from an adjustable opening into water flowing beneath the hopper. Periodic impacting is effected by the pretreated water driving a water wheel which periodically rocks a pivot bar. The pivot bar impacts against a dispenser plate which imparts vibrations to the side of the hopper to thereby vibrate and dispense the lime.

Abstract: A solenoid valve having a valve body and a magnetic head with a chamber arranged between a pair of magnetic cores. A movable armature is provided in the chamber and has a sealing member movable therewith between open and closed positions relative to a passageway through one of the magnet cores. A spring is provided for biassing the armature and, accordingly, the associated sealing member toward one of the two positions thereof. The force of the magnetic field generated by the electrically energizable magnetic coil encircling the magnet cores is greater than the return force of the return spring.

Abstract: A cartridge valve in which parts made separable for convenience of manufacture and for a use of different materials within the same assembly are interconnected for unitary installation and removal.

Abstract: A system for controlling the water level in a boiler, including a liquid level adjuster, conduits connecting the liquid level adjuster to the boiler through housings mounted on the boiler and membranes positioned between the boiler and the conduits to transmit fluid pressure from the boiler to the liquid level adjuster while preventing fluid communication between the boiler and the liquid level control system. Valved bypass ducts extend from the housings to the top of the boiler so that expansion of the water in the liquid level control system due to the firing of the boiler is accommodated by overflow into the top of the boiler rather than by rupture of the membranes. Graduated water columns are provided to permit calibration of the liquid level adjuster, and valves are included in the liquid level control system adjacent to the liquid level adjuster so that the liquid level adjuster may be isolated from the rest of the system and checked for proper operation at any time.

Abstract: A pilot-assisted pressure relief valve including a valve body 10 defining a first and second plurality of ports 30, 32 and an internal stepped bore 40 that slidably supports an elongate, tubular primary piston 34 engageable with a valve seat 36 mounted at one end of the valve body bore, which cooperate to control fluid communication between the first and second plurality of ports. The piston 34 is biased towards a flow interrupting position by a spring and is biased towards an open position by fluid pressure at the first plurality of ports. A pilot-operated piston 70 is mounted coaxially with the primary piston and is operative to engage the primary piston 34 and oppose the spring force thereby reducing the effective relief setting of the valve.

Abstract: A hydraulic latching valve mechanism (48) is provided integral with a control valve (14) to hydraulically hold an actuator (47) in an engaged position (E). This eliminates the need for mechanical detents and/or extra external lines. The valve mechanism (48) has first and second members (58, 66) which cooperate to selectively communicate a fluid chamber (59) with an exhaust port (52) or an inlet port (26) in response to the actuator (47) being moved from a first position (D) to the second position (E). This arrangement is used to maintain a valve spool (30) in a second position for extended periods of time by using the system pressure as the holding force.

Abstract: Fibre-reinforced metallic pearlescent luster flake pigmented tubular casing with a seamless coating on its inside of a vinylidene halide copolymer lacquer, wherein the copper-, silver- or gold-colored pigment is embedded in a film forming impregnating agent in dispersed form; and a suitable process for the production of such fibre-reinforced pigmented casing.

Abstract: A dobby mechanism with a coupling, controlled according to a design, between a stationary drive shaft and a first gear with the number of teeth n, which first gear meshes with a second gear with the number of teeth 2n on a stationary axle, on which second gear an eccentric device for the dobby movement is arranged, whereby the drive shaft and the first gear are coupleable with each other by means of a radially movably mounted wedge, which wedge is controlled with a switching member from the outside according to a design, and in the coupled condition partially engages in a radially extending recess of the first gear and partially in an axially extending groove of the drive shaft. In the uncoupled condition the wedge is completely uncoupled from the drive shaft and the switching member comprises a switching rod, the latter being controlled according to the design, the switching rod in the coupling range engaging with a coupling member in a groove of the wedge.

Abstract: A liquid jet gas pump providing suction to recover vapor through a line connected to dispensing nozzle, the pump having chambers for collecting liquid carried by returning vapor and a float therein so that the float, when the amount of liquid collected in the chambers becomes too great, blocks the suction path through the pump thereby shutting off the dispensing nozzle. The pump also has an internal connection from a diaphragm chamber to an internal area which is substantially at atmospheric pressure during pump operation thereby eliminating the need for an access vent from the diaphragm chamber to the atmosphere.

Abstract: A machine and a tool for cutting material such as wood and plastics. The tool includes a shank adapted to be fastened to and rotated by a power driven spindle. The tool further includes a cutting part having at least one spiral rib on its outer periphery. The outer periphery of the rib is sharpened on its edge which is adjacent the shank, and the spiral rib has a pitch in the range of approximately 5.degree. to 15.degree.. The machine includes the tool, a drive motor and the spindle, and a support table for supporting a workpiece. The table has an opening formed in it and the tool extends through the opening. The sharpened edge of the rib is adjacent the table.

Abstract: A hammer includes a head having a square impact face with a multiplicity of raised sections defined thereon. A nail puller is integrally joined to the head and is angled away therefrom.