Abstract: An intake system adapted to be used in combination with an internal combustion engine having a main combustion chamber and a preliminary or subcombustion chamber equipped with an ignition plug. There is provided an intake cylinder having a venturi portion which allows the passing of the total amount of air being fed to both combustion chambers and a throttle valve controlling the amount of air being fed to respective combustion chambers. The intake cylinder is divided into a main intake passage and sub-intake passage, both of which lead to both combustion chambers, respectively. A metering orifice is provided in the sub-intake passage, so that a ratio in amount, of air passing through respective intake passages may be maintained at a given value. In respective intake passages, there are provided fuel discharge values, to which are connected fuel passages leading from a single fuel pressure controlling valve for use in providing fuel pressure commensurate with the negative pressure in the venturi portion.

Abstract: A vacuum operated valve and vacuum delay device is disclosed. The device, which may be connected to a variable vacuum source and employed to serve a vacuum operated switch or valve, includes a bleed orifice for restricting the passage of air therethrough and delaying the effect of vacuum on the switch or valve being served. A spring-loaded diaphragm within the device, operable by the variable vacuum source, is adapted to dissipate vacuum to the valve or switch being served by venting it to atmospheric pressure when the vacuum source reaches a predetermined high level. The vacuum delay and shutoff valve is particularly suitable for serving an exhaust gas recirculation valve of an automobile.

Abstract: In a spark ignition internal combustion engine, an accelerometer is mounted on an engine component, preferably the intake manifold, and senses vibration including individual ringing vibrations due to engine knock or detonation. A reference signal is derived from the accelerometer signal during the portion of the engine cycle prior to possible knock-induced vibrations, which signal indicates the background accelerations due to noise. The number of individual ringing vibrations exceeding the reference signal during a predetermined amount of engine crankshaft rotation is counted. When the number of such counts exceeds a predetermined number during the predetermined crankshaft rotation, engine spark timing is retarded. If the number of such counts is less than a predetermined number during the predetermined crankshaft rotation, engine spark is advanced.

Abstract: There is herein disclosed an air gun having a breech block assembly, including a plurality of mating molded plastic members defining a guideway for a pivotally mounted projectile transfer member, movable during cocking of the gun from a firing position holding a projectile in alignment with the gun barrel to a loading position to receive another projectile and back to the firing position, with sealing means being provided to effect sealing engagement between the projectile transfer member and the molded plastic members of the breech block assembly in the firing position whereat the projectile is transferred from the projectile transfer member to a firing chamber provided in one of the molded plastic members by air pressure at the beginning of a firing cycle and held in the firing chamber in sealing engagement therewithin during an intermediate portion of the firing cycle and then discharged from the firing chamber through the gun barrel upon application of predetermined high pressure air toward the end of the

Abstract: This heating apparatus includes an air flow chamber having outer and inner, generally cylindrical and parallel walls within which a combustion chamber is nested. The combustion chamber includes means for burning a fuel and has outer and inner parallel, generally cylindrical heat conducting walls. It is coupled to an exhaust duct which has at least a portion thereof surrounded by the inner wall of the air flow chamber. In one form air is driven by an electric fan through the air flow chamber around the combustion chamber and out to a distribution duct. The fan also blows air into the combustion chamber for combustion of the fuel. In another form, a fan is driven by th combustion exhaust gases thereby propelling air through the air flow chamber and into the combustion chamber via a compressor wheel. Other forms include heat-conductive members placed into contact with the exhaust duct or with the air chamber to further heat the air before it enters the distribution duct.

Abstract: A plurality of solar energy conversion units, each with a reflecting mirror, are disposed on top of a stem or reed-like tower composed of a bundle of major supply tubes each terminating in a conversion unit plus mirror combination with additional tubes provided in the stem for up and down transport of gases and liquids. Particularly buoyant mirror constructions and anchoring facilities for the bundle are described.

Abstract: A venetian blind with a heat-absorptive surface on one side of the slats distributes solar heat into the ambient air of a room. For space heating the vertically-oriented, highly heat-absorptive surface of the blind has its temperature increased as solar radiation generally in the form of direct sunlight passes through the glass of the window sash and impinges on the energy-absorbing surface. Ambient air from the room moving by natural convective action, enters the air space between the window sash and venetian blind through openings in the bottom rail and between slats of the blind, passes over the heated surface in heat exchange relationship thereto, is warmed, leaves the air space through openings in the head rail of the blind and re-enters the enclosure at an elevated temperature. The other side of each slat of the blind has a reflective surface which when turned to receive the solar radiation, as in the summer, reduces heat entry into the room.

Abstract: A multiple tube solar energy collector having a diffusely-reflecting surface positioned behind the collector tube array. Multiple double walled collector tubes are connected into a manifold for circulation of a working fluid through them. The working fluid is heated by solar energy as it flows through the tubes. A diffusely-reflecting surface behind the tubes reflects back to the tubes both direct beam and diffuse solar radiation which fails to strike the tubes directly. This system allows efficient operation of a tubular solar energy collector without requiring focusing or polished reflecting surfaces. The tubes are preferably no more than four tube diameters apart, on centers, and no more than four tube diameters above or separated from the diffuse-reflecting surface.

Abstract: An instrument is described which automatically performs a tympanometric hearing test and which gives the test results in graphic form. The test instrument includes a probe which is placed in the subject's ear and which applies controlled air pressure and audio test signals to a sealed ear canal in a manner programmed by the instrument so that a plot of the ear compliance versus the ear pressure is produced on the chart. The plot is made using a coordinated chart drive and ear probe air pressure control and an audio signal generator and a compliance signal level recorder. The system automatically runs through the necessary coordinated chart advance, air pressure control, and compliance signal recordings on the chart to complete one tympanometric test after the start button is operated.

Abstract: The present invention provides for a lip and cheek expander and tongue retractor for mechanically holding open a patient's mouth and stabilizing his tongue therein so as to facilitate dental and medical procedures. The present expander-retractor comprises first and second arc-shaped shells, each of said shells having a trough-shaped cross-section including first and second side walls; and a spring element having two ends, one of each of said ends secured to the first and second shells respectively, said element disposed in a plane which is substantially transverse to those planes defined by said side walls and which, upon insertion is substantially co-planer with the plane of the patient's tongue. The spring element includes a lingual arch which is adapted for engagement with the paient's tongue.

Abstract: A combined active and passive exerciser to facilitate both body movement and massage effected by the user's own muscles comprises a core with three sleeves rotatably disposed end to end and retained thereon by cup shaped end locks or ferrules at the ends of the core, and having rubber cups slipped over the end locks to provide antiskid pivots. The end sleeves provide handles and the center sleeve, which is covered with a soft material, provides a roller. A variety of body movements and massage actions can be performed with the exerciser.

Abstract: A prostate massager for use as a medical instrument for massaging and treating an inflammatory prostate gland, the massager comprising a flexible, digital-massaging head adapted to be inserted into the rectum and positioned adjacent the prostate gland, the digital head being removably attached to a substantially U-shaped handle having a coupling neck member disposed between the digital head and handle, wherein the depth of insertion is controlled by a shoulder ring which is adjustably mounted to the neck member. The massaging head is flexibly operated by a control line that is connected at one end to the head, the opposite end thereof being free for manipulating the massaging head.

Abstract: A traction table has a top for a patient to lie on and a flexible device for encircling a portion of the patient's body. Spaced above the foot end of the table is a horizontal bar, supported by a pipe frame, on which the patient can press with the feet. At the head end of the table, another pipe frame comprises at least two vertical pipes on each side of the longitudinal midline of the table, as supports for the patient's hands. A holder is horizontally and vertically adjustably secured to the pipes at one of the two ends of the table, and a longitudinally adjustable traction strap interconnects that holder with the flexible device. The traction strap includes a dynamometer to measure the traction force and to permit the patient to exert a predetermined force by pushing or pulling against the respective frames.

Abstract: The regulator control chamber is bypassed by a bypass tube conducting the incoming air directly to the mouthpiece.

Abstract: A gas mask assembly for snouted animals is disclosed having a nose cap member for covering the nostrils and anterior portion of the animal's snout and having an opening therein for the attachment of a breathing tube. An abutment in the nose cap member prevents the animal's nostrils from becoming occluded by said nose cap member. A flexible sleeve member, formed from substantially gas impermeable material, is secured to the nose cap, and an immobilizing cinch is secured to the marginal portion of the sleeve member to afford sealing engagement for the sleeve member against the animal's snout and to restrain the animal's movements.

Abstract: A dispenser suitable for storing and dispensing an opthalmic product and a method of dispensing the product into an occular cavity while maintaining the dispensing orifice of the dispenser free from contact with the occular cavity is described. The dispenser comprises a container with a cavity for containing a product to be dispensed, pump means, product dispensing valve means, and pressure equalizing valve means. A positioning/guard fixedly secured to the container cooperates therewith to positively position and anthroprometically locate the dispensing orifice relative to the occular cavity. The product is dispensed into the eye without loss of product due to inadvertent closing or blinking of the eye as a result of fear of a sharp object and also places the product properly for most effective results.

Abstract: The introduction of surgical instruments into an animal body is effected, without tissue incision, by migrating a specially constructed hollow needle into the body behind a rotary augering tool journalled in the hollow needle. Surgical procedures may then be performed with the rotary tool or the same may be withdrawn from the in situ needle and different surgical implements substituted therefor which may be extended beyond the open end of the needle, as required. In the case of unwanted tissue removal, such as blood clots, cataracts and the like; a rotary masticating tool may be brought to the operative site by introduction through the hollow needle, the unwanted tissue masticated or liquefied and the same withdrawn through the needle bore following removal of the masticating tool. Similarly, fluids may be injected into the body and withdrawn therefrom, as required, through the hollow needle.

Abstract: An anticoagulant delivery device forming part of an aspiration wand for use in connection with autologous blood transfusion wherein an anticoagulant is delivered along essentially the entire internal periphery of the aspiration wand in the vicinity of the aspiration tip and intimately mixed with aspirated blood.

Abstract: A binder for nonwoven fabrics is provided comprising a cationic polyurethane having an ionic charge density sufficient to render the fabric dispersible in aqueous solutions of relatively low ionic strength yet resistant to body fluids. The water-dispersible nonwoven fabrics comprise one or more layers of substantially uniformly laid fibers bound with the cationic polyurethane; exhibit good tensile strength in the presence of body fluids such as urine, blood and menstrual fluid; and can be incorporated in body fluid-retaining products such as sanitary napkins, disposable diapers, surgical dressings and the like. Binders containing condensation residues of a polyisocyanate with an aliphatic polyester polyol are biodegradable.

Abstract: A disposable diaper having a facing sheet defining a diaper inside surface for direction toward an infant and a backing sheet defining a diaper outside surface is provided with adhesive tabs which are slit within the perimetric limits thereof to form a central flap spaced from the edges of the tab. The tab includes a free end and a fixed end. An adhesive coating is provided on at least one face of the flap, free end and fixed end. The fixed end is permanently attached to the diaper backing sheet and the flap is permanently attached to the facing sheet by means of the respective adhesive coatings so that stresses exerted on the tab are distributed to both the facing sheet and the backing sheet when the diaper is secured about an infant.

Abstract: Novel hydrogel compositions of diester crosslinked polyglucans and a process for their preparation are provided. Amylose, dextran, and pullulan succinates and glutarates when crosslinked as described were found to not only have use as general fluid sorbants but also to have exceptional hemostatic activity, adherence to a wound, and bioabsorption without causing undue irritation of the tissue or toxic effects. Reticulated hydrogel sponges made of the crosslinked diesters which are particularly useful as general fluid sorbants, and those of amylose succinate and amylose glutarate are most excellent bioabsorbable hemostatic agents. The sponges are made by lyophilizing water-soluble salts of the mono- or half-esters, such as water-soluble salts of amylose succinate or amylose glutarate, under process conditions of the invention in the presence of a reticulating agent which causes a controlled melting of the salt solution as it nears the dry state during the lyophilizing step.

Abstract: A device for aspirating air emboli from a blood vessel (e.g. the aorta during open-heart surgery), the aspirating device having a hollow cannula with radially spaced openings for aspirating air and bending angularly mid-length to permit aspiration of air emboli while maintaining the device generally flat against the exposed patient surface. A hub comprising part of the device is constructed to provide a dual coupling presenting both male and female attachment sites.

Abstract: A method and apparatus for enhancing a person's cerebral functions by providing a selective increase in the cerebral temperature while leaving the temperature of the rest of the body as is. The method and apparatus elevate the exterior skull temperature to a selected value within the range between 38.degree. and 50.degree. Celsius and change the temperature within a limited rate.

Abstract: Thermal degradation of tobacco by heating at above 100.degree., suitably 100.degree.-300.degree. C in presence of a catalyst until the weight of the residue is less than 90% of the weight of the original tobacco improves the smoke-flavor, although similar heating in absence of catalyst fails to produce this effect. The degraded tobacco material is an improved material suitable for smoking mixtures wherein the degraded tobacco material possesses an enhanced tobacco flavor as compared to untreated tobacco.

Abstract: Microporous styrene polymers are provided having randomly interconnected open network of irregularly shaped pores whose walls consist of cohered spherical particles of the polymer. These microporous styrene polymers are produced by mixing styrene polymer latex with a water-soluble ether, casting, molding, or impregnating the resulting mixture into a fibrous material, heating same to a temperature of from about 80.degree. C to about 120.degree. C and removing the ether.

Abstract: Cigar tobacco sheet of low density, smoking articles prepared therewith, and foamed intermediates therefor. Fine-bubble stable foams, wherein at least 80% of the bubbles are less than about 100 microns in normalized dimension are formed in a high shear system utilizing tobacco particles of generally smaller than 100-120 mesh. The foam is cast and dried to form reconstituted cigar tobacco sheet, utilized preferably for wrapper and/or binder in cigars, characterized especially by excellent taste.

Abstract: This invention relates to novel oligomers and polymers produced from monomer carbonate esters of menthol having the formula: ##STR1## These compounds find particular use as menthol-release agents which will impart improved aroma, flavor, and taste effects to natural and reconstituted smoking products.

Abstract: A support member of pliable material supports hair wound around it. A ribbon type member extends from the support member for wrapping around hair wound around the support member thereby holding the hair in position on the support member.

Abstract: A toothbrush used as a traveling denture cleaner device includes a casing having a right and left compartment therein and an open top. An elongated stem has bristles affixed at one end thereof and a bore extending from another end of the stem to the bristles of the stem. The other end of the stem is affixed onto a cap member which detachably secures to the open end of the case, wherein a liquid denture solution is transferred from one of the compartments through the bore to the bristles of the toothbrush.

Abstract: The invention provides a container for flowable material and a cap for the container, the cap has a shoulder which, when in position on the mouth of the container presses the wall of the container inwards around the mouth against a plug-like body positioned in the container near the mouth, thus restricting or preventing flow through the peripheral space around the plug-like body, thereby preventing leakage when the cap is in position.

Abstract: A pair of protruding parts extend from one end of an elongated handle in spaced parallel relation. Dental floss is releasably affixed to the protruding parts and extends tautly therebetween.

Abstract: An air charging device is connected to a supply tank, a pump and a use facility, such as a faucet. When the faucet is opened, water flow from the tank through the device to the faucet charges a chamber in the device with air; while when the pump is actuated, water flow from the pump through the device to the tank causes the air in the chamber to be compressed and escape into the tank. The flow of water in either of two directions causes a freely movable valve member to engage and shift a plunger. Movement of the plunger in one direction causes intake of air into the chamber, and movement thereof in the other direction causes compression and discharge of air into the supply tank.

Abstract: A motor operated valve unit including a fluid valve driven by an electric motor through a suitable drive mechanism, and a heat dissipating clip member comprised of a horizontal gripping portion and a pair of depending flange portions formed integrally therewith. The gripping portion is provided with a circular gripping edge which extends slightly over 180.degree. from tip to tip. The clip member is snapped into a groove on the electric motor and is dimensioned so that the flanges thereon will be in snug contact with the inside surface of a removable cover member.

Abstract: A quick disconnect coupling that may be used in fluid systems for fast coction or disconnection of hoses or hoses to pipes. The coupling is especially useful where it is necessary to avoid any leakage or spillage. The coupling employs a female section and a male section wherein both sections employ O-ring joints that permit easy hand tight assembly and disassembly without any leakage. The O-ring joints permit considerable variation in clearance between mating flanges and thus permit the use of removable locking rings to lock the flanges and prevent their relative rotation. The female section employs a ball bearing mounted rotatable nut that permits rapid connection and disconnection without spillage. The rotatable nut has minimum axial movement that permits a close diameter tolerance so that longitudinal or lateral relative motion between the female and male members will not result in leakage.

Abstract: A fly shuttle loom shuttle box is provided with a solid elastomer binder attached at both ends in place of a conventional pivoted, rigid-backed binder. In one modification there is attached to the end of the binder a pivoted extension which permits use of dagger fingers in the normal position on a loom. The greater force exerted by the binder results in improved shuttle deceleration when it enters the shuttle box. This also eliminates picker stick over throw when accelerating the shuttle, which permits, when in proper adjustment, in some cases elimination of picker stick loom side bumper and check strap without, of course, eliminating their useful functions. As there is a considerable amount of heat developed by the flexing of the solid elastomer, it is desirable to provide for ventilation in the form of a few relatively large holes in the elastomer near its center and adjacent to the leather face of the binder.

Abstract: A woven fabric shade screen comprising substantially even spaced elongated strands in one direction, such as the fill direction, and groups of more closely spaced strands woven so that the two outside strands alternate respectively being over and under successive fill strands while the inside four strands in each group are arranged so that the third and fifth strands are under a fill wire while the second and fourth strands are over, thus providing alternate strands which alternate each fill strand.

Abstract: The present invention covers an apparatus for selecting shuttles having weft windings therein of different filling yarn types for preprogrammed weft insertions on a wave-type or corrugated shed loom.

Abstract: Device for depositing thread supply, particularly weft thread supply for unconventional weaving machines such as jet looms, the device being arranged between the feeding and withdrawing mechanisms for the thread. Said device has a thread inserter and at least one magazine in the shape of a body of revolution, on the circumference of which there is a system of ribs for depositing at least one thread, the said magazine and inserter being adapted for mutual relative motion.

Abstract: The invention relates to a method and an apparatus for straightening the pins of semi-conductor devices such as transistors and the like. The apparatus includes means for holding the head of a semi-conductor device, means for preventing the pins thereof from separating from one another beyond a cylindrical volume defined by the outer diameter of the ring formed by the pins where they join the head and a plurality of pistons in one to one relation with the plurality of pins generally perpendicular to the pins, each piston aiming towards a central axis defined by the pins. Means are provided for inserting the pistons one between each of adjacent of the pins and towards the axis. A round plunger coaxial with said axis is provided, said round plunger having a diameter generally equal to the inner diameter defined by the pins. Means are provided for advancing the plunger axially towards the head between the pins.

Abstract: A railway train made up of individual tank cars for interconnection and fluid communication with associated-like tank cars by flexible connecting conduits, wherein each tank car includes a wheeled chassis structure provided with coupling means for coupling adjacent tank cars. A tank is mounted on the chassis structure and has two lading conduits respectively coupled to the tank and in fluid communication therewith, each of the lading conduits having an outer end extending outwardly from the tank adjacent to the top thereof. Each of the lading conduits is connected to a vent conduit and to an eduction conduit with the vent conduit extending into the tank and having the inner end thereof terminating a predetermined distance from and near the top of the tank and with the eduction conduit extending into the tank and having the inner end thereof terminating near the bottom of the tank.

Abstract: At least one workpiece is rotated synchronously with a model in a contour-copying lathe. A feeler engages the model and is linked to a tool similarly engageable with the workpiece so that as the feeler rides up and down and travels along the model the synchronously displaced tool similarly shapes the workpiece. Those preshaped regions on the model corresponding to the surfaces on the workpiece which are not to be shaped are provided with extensions so that the tool is lifted from the workpiece at these preshaped surfaces.

Abstract: A safety wallet has outer panels each having an area with material of a relatively high coefficient of friction adapted to frictionally engage with pocket fabric sides, whereby the likelihood of withdrawal of the wallet from the pocket without sensory perception of the owner is minimized.In modified forms of the invention a series of ridges are formed in the areas having said friction material.

Abstract: A middle rail assembly for centrally clamping a screen within a frame structure is disclosed. The middle rail includes a supporting member, a C-shaped cover and a plurality of coupling means tightly received into apertures formed in the supporting member. The coupling means are configured to be forced through the screen and fit into the apertures. The screen is therefore tightly clamped at the middle rail.

Abstract: This invention relates to a method for molding and forming an equalized layer onto a shaping surface of a mold, and also relates to a method for forming the layer onto the shaping surface of the mold which has a hardened layer on the shaping surface of the mold.

Abstract: Continuous casting apparatus is described wherein the temperature of the flexible casting belts in twin-belt machines having two or more main rolls in each belt carriage is controllably elevated prior to contact with the molten metal to improve the casting conditions and the operation of the thin flexible casting belts; the temperature elevation preferably being relatively gradual may be carried out while the travelling belts are approaching the nip rolls or while the belts are in contact with the nip rolls, or both. Zone control of belt pre-heating is disclosed, and control of the coolant streams issuing from the curved nip roll tubes by use of fingernail-like extenders may be provided to aid in pre-heating the belts and in controlling their operation. Intensive infra-red heaters are shown directed at close range toward the casting surfaces of the belts, these heaters serving also to cure and dry any coating material on the belts.

Abstract: A finned tube heat exchanger for isolating sublimates, especially phthalic anhydride, in which the finned tubes arranged in parallel alongside one another and above one another and connected by headers and tube bends permit flow through them successively in the first, then the third, then the second and then the fourth row, and that the transverse fins are arranged in rows staggered laterally in opposite directions by an amount corresponding to from half the spacing to the whole spacing between adjacent fin edges.

Abstract: A food receptacle for a refrigerator freezer compartment for fast-thawing and fast freezing food by the use of a concavo-convex heat energy reflective damper pivotally mounted in an air passage of the receptacle which communicates with an opening in the refrigerated air duct of the compartment. A high energy radiating lamp is located on the pivotal axis of the damper such that a manual control pivots the damper to a first evaporator defrost position closing the passage with the damper operative to direct heat energy from the lamp via reflective surfaces in the duct to the refrigerator cooling coil. The damper upon being pivoted to a second position, opens the passage and cooperates with the duct reflective surfaces to circulate below freezing air through the receptacle to fast freeze food therein. The damper, upon being pivoted to a third position, closes the passage and reflects heat energy from the lamp into the receptacle to fast-thaw food therein.

Abstract: A heat exchanger panel formed from two superimposed plates, at least one of which is folded on itself longitudinally to create a series of outwardly extending open-looped fins, serving as multiple ducts to provide free passage and direct prime heat-exchanging fluid contact along the entire inner wall surface of the fins.

Abstract: A heat exchanger of a stacked plate design wherein two or more fluids are in heat exchange relationship, comprising two or more independent sets of plates with the fluid passages of one set of plates being interconnected for continuous flow therethrough and the other set of plates being similarly interconnected and interleaved with the first set; and each of the plates in the two or more sets being separated by intermediate fins which serve as secondary heat exchange surfaces.

Abstract: A fail-safe sub-surface safety cut-off valve for fluid wells controllable from the surface and suitable for installation at substantially greater depths than prior constructions. The valve assembly is installable and retrievable via wire line technique and utilizes an electromagnetic means to operate either a flapper or a ball cut-off valve. The operating solenoid coil embraces a landing nipple portion of the tubing string and is outside the production flow. This solenoid supplies the power to open either type of cut-off valve and holds the latter open only so long as the solenoid is energized thereby providing surface control of the safety cut-off valve normally and assurance of closing of this valve in the event of power failure through accident or some catastrophe as well as automatic closure if flow velocity increases beyond a predetermined safe value.