Abstract: In the control of the operation of a power plant including a gas turbine power generating unit, a main boiler whose heat source is exhaust gas of the gas turbine and which supplies steam to a heat load, a back-up boiler which has an independent fuel system and which is operated to supply steam to the heat load when the quantity of supply of steam of the main boiler to the load is insufficient, and a heat exchanger which is disposed in a boiler feeding system common to the main boiler and the back-up boiler and which receives excess steam or condensed water as discharged from the heat load and heats feed water, a method of operating a power plant and apparatus therefor comprising a circulating pipe for connecting a steam generating portion of the back-up boiler and the heat exchanger and for causing boiler feed water to flow from the back-up boiler back to the heat exchanger even during shutdown of the back-up boiler, and valve means disposed in the circulating pipe and adapted to be shut when a condition of t

Abstract: A vapor generator is made up of a tube wall with conducting tubes which are gas-tightly welded together followed by a sheet metal flue gas duct leading to a stack. The tube wall has a temperature zone in which the temperature difference between the medium in the tubes and the flue gas is at its minimum under any operational conditions. In addition to the conducting tubes, the tube wall has a portion with non-conducting tubes which are gas-tightly welded together and through which the medium is non conducted. The non-conducting tubes are aligned with respective tubes of the conducting portion of the tube wall with the interposition of tube transition pieces or T-shape pieces. The T-shape transition pieces include a connection to the conducting tube with a right angle tube leg for the offtake of the vapor and an aligned leg which is welded to the non-conducting tubes of the non-conducting tube section.

Abstract: A furnace enclosure is provided in which one wall includes tubes of different passes which are free to move longitudinally relative to each other. A seal plate and filler means are disposed outside of the enclosure to provide for gas-tightness.

Abstract: A hot fuel gas generator for an internal combustion engine simultaneously vaporizes gasoline and water in a multi-chambered heated pressure vessel having built in regulators for controlling pressure and volume and delivers the resulting superheated steam and gaseous fuel to the internal combustion engine downstream from the usual carburetor. A single device operating at a very high temperature, for example 1600.degree. F., is used for the simultaneous vaporization of the fuel and water to develop desirable working pressure and volume. The high temperature steam and gaseous fuel positions the fuel molecules at the greatest degree of separation from each other providing the greatest opportunity for contact of the oxygen, the reacting species in the gaseous condition as chemical reactions occur only between particles at the atomic or molecular level and it is necessary for the reacting species to be in actual contact at the time of reaction.

Abstract: An electronic system for fuel injection in internal combustion engines of the fuel injection type including a system which modifies the pulse length of the fuel injection control pulses by integration an on-off signal delivered from an air/fuel ratio sensor wherein the integration time constant is varied in accordance with the frequency of the on-off signal from the air/fuel ratio sensor so that the rate of increasing the injection quantity of fuel is increased in accordance with an increase in the engine intake air flow.

Abstract: In an air flow control system including a gas sensor for detecting the concentration of a constituent of the exhaust gases from an internal combustion engine, an air passage for supplying additional air into the intake system or exhaust system of the engine, a by-pass valve for varying the passage area of the additional air passage, and means for controlling the opening and closing of the by-pass valve in accordance with the detection signal from the gas sensor whereby the amount of additional air supplied into the intake system or exhaust system of the engine is controlled in accordance with the concentration of the constituent of the exhaust gases, there is further provided an acceleration/deceleration sensor for detecting acceleration or deceleration of the engine, whereby when a transition from the acceleration or deceleration operating condition to the steady-state operating condition is detected, the opening and closing control of the by-pass valve is accomplished in such a manner that the amount of ope

Abstract: An angular position signal generator includes a rotor and a stator each having an arrangement of salient magnetic poles. The poles on the rotor are all of the same polarity and are spaced at unequal angles around the axis of the rotor. The poles on the stator are identically arranged so that in at least one position of the rotor all the poles are aligned and in at least two other positions only some of the poles are aligned. As the rotor rotates, therefore, the flux flowing between the poles fluctuates and a winding in the flux path produces pulses of different magnitudes at these various positions of the rotor.

Abstract: Fuel in the fuel line of an internal combustion engine is preheated before admixture with air to increase combustion efficiency, as indicated for instance by improved mileage of an automobile driven by an internal combustion engine, and to reduce noxious content of the combustion engine exhaust.

Abstract: A fuel injection pumping apparatus includes an injection pump and a delivery valve through which fuel flows from the injection pump to an outlet, the apparatus includes a spill passage and a valve for controlling flow through the passage. The position of the valve is determined by the speed of the associated engine and above a predetermined speed flow can occur through the passage so that no fuel flows past the delivery valve. The valve also enables when the engine speed is below a second predetermined value lower than the first predetermined value, flow to take place through the passage.

Abstract: Disclosed herein is an internal combustion engine including an ignition port having an outlet opening into a cylinder combustion chamber, a spark plug mounted in the ignition port, and a deflector located on the cylinder head adjacent the ignition port outlet. The deflector surrounds the side of ignition port outlet closest to the fuel intake port and diverts lubricant and/or other heavy residuals collecting on the cylinder head around the ignition port outlet so as to minimize fouling of the spark plug.

Abstract: A method of operating a spark ignition internal combustion engine having a main combustion chamber into which there is introduced a fuel-lean mixture of fuel and air, an auxiliary combustion chamber into which there is introduced a fuel-rich mixture of fuel and air, and an ignition means located in said auxiliary combustion chamber. In said method the engine is operated to approach an extended minimum lean misfire limit, and thus obtain minimum emissions of objectionable pollutants, e.g., nitrogen oxides. Said method comprises providing the engine with an auxiliary combustion chamber having a predetermined length over diameter (L/D) ratio and then operating the engine at certain predetermined values for the interacting parameters of spark gap location, volume percent of auxiliary chamber filled with said fuel-rich mixture, and percent of stoichiometric fuel in said fuel-rich mixture; with said predetermined values for said parameters having been predetermined relative to said L/D ratio.

Abstract: A circuit is described for a multiple cylinder engine which permits operation of all of the engine cylinders or a part thereof in response to engine loads. Different operating modes, incorporating different numbers of cylinders, are activated in a fuel injection engine in response to varying power demands. Manual switching circuits on the dashboard of the automobile permit the driver to override the automatic system and require that the engine operate in any of its operating modes. When operating in partial modes, a circuit automatically rotates the cylinder banks which are operated to assure uniform engine wear and cooling. Switches are provided on the dashboard to permit the operator to selectively skip certain engine modes in the automatic, load-responsive sequencing of engine operation.

Abstract: A target throwing apparatus in which a revolving magazine having a number of stacks of targets is independently and fixedly supported relative to an oscillating target throwing housing. A cocking mechanism stops the throwing arm just before reaching the over-center position whereupon initiating of the next cocking cycle throws the target. A power train consists of three equal-sized gears mounted on three parallel shafts to throw the targets and to oscillate the housing. The magazine includes a ramp and cam mechanism by which the entire column of targets is lowered by gravity prior to having springbiased fingers engage the second target from the bottom and having the lower-most target fall onto a predetermined drop pad on a target launching plate, which pad location does not change regardless of the position of the oscillating housing and launching plate. A scotch yoke assembly is utilized in translating rotary shaft motion to symmetrical reciprocating motion to oscillate the housing.

Abstract: A target positioner for an autoloading target throwing machine. The positioner can be adjustably mounted on the rotatable throwing arm and is used with a resilient target nest, whose function is to locate the target to be thrown in the proper position on a launch platform. Camming surfaces on the positioner act to force the target into proper position in the resilient target nest upon cocking of the throwing arm.

Abstract: The attachment includes a tubular barrel through which a ball or other missile is projected by the force of the bowstring. The tubular barrel is rigidly attached at its muzzle end to the central portion of a bow, and is provided with elongated slots along its upper and lower surfaces through which the bowstring passes. Within the barrel a slidable carrier is attached to the bowstring. The carrier releasably holds the missile even when the barrel is tilted downward as well as when the bow is drawn. When the bowstring is released, the carrier and missile are driven toward the muzzle of the barrel; but, when the bowstring and attached carrier decelerate as they approach the muzzle, the momentum of the missile causes it to pull free of the carrier and to continue through the muzzle toward the target, while the carrier remains behind in the barrel. The attachment is removable from the bow and adjustable with respect to it.

Abstract: A portable barbeque and cooking appliance that includes a tripod and a plurality of suspending members depending from the tripod for supporting a rack or a cooking vessel.

Abstract: For the simple Thomason "SOLARIS" heat collector, a simple outlet is used that requires a drop-outlet nipple with a U-slotted top end, and sealant to avoid escape of liquid or steam (vapor).In a modification, only one drop outlet is used for two "SOLARIS" panels, thus cutting the cost even further.In another modification a slotted, sloping pipe serves as an outlet and drain.

Abstract: Solar heat exchange panel manufactured by a high speed rotogravure or heat sealing process wherein two elongated sheets of flexible plastic film are laminated together along lines defining inlet and outlet manifolds and a plurality of flow passages. The manifolds extend substantially the entire length of the sheets, and the flow passageways are arranged in groups to form individual heat exchanger sections which are served by the manifold. Mounting loops are provided along the lateral edges of the panel and adapted for receiving elongated rods by which the panel can be tethered or secured to another such panel.

Abstract: A novel heat pump using solar energy and the heat of dilution of exothermic inorganic salts and organic compounds is disclosed. The heat pump is made up of four parts including a solar energy absorbing surface, a means for diluting the concentrated solution, and heat exchange apparatus to take the heat of dilution and distribute it to the space to be heated.

Abstract: The invention adds liquid solar heating to conventional house construction without altering the plans. Sections of moulded polyester resin embedding p.v.c. pipes connect together to provide a continuous liquid pathway which is hidden from view. The sections are artistically styled, obviating the unsightly appearance of present day solar equipped homes. The arrangement is very inexpensive, yet durable, and not subject to glass panels and its attendant breakage or the use of expensive copper tubing. The entire roof is a collector and different parts of the roof are exposed to the direct sunlight at all times of the day.The solar sections actually replace the shingles, tile or other outer coating of the conventional roof for new construction. Hence, the solar section is integral with the house, making it more stormproof, yet workmen may walk over the roof.

Abstract: A solar pool heater is defined by a submersible tubular ring attached to the perimeter of a floating sheet. The ring is perforated to permit the entry of water within the ring to induce at least partial submersion. The submersed ring prevents overlapping of adjacent heaters and reduces the likelihood of the heaters being blown off the pool by wind. The sheet includes a plurality of captive air bubbles to provide a floatationcapability while simultaneously insulating the water surface from the ambient air. By developing the sheet from material transparent to at least a spectrum of the solar rays, the underlying water will become heated by the received radiant energy.

Abstract: The specification discloses a kitchen stove hood having two venting modes of operation. The kitchen stove hood is dimensioned to be disposed in a kitchen area over a stove and includes an air intake opening. An air recirculation outlet for recirculating filtered air to the kitchen area and an air vent outlet for venting air from the kitchen area is also included in the kitchen stove hood. A recirculation damper blade is mounted adjacent to the air recirculation outlet and is operable between an open and closed position. A vent damper blade is mounted adjacent to the air vent outlet and is operable between an open and closed position. The damper blades are interconnected by a damper blade linkage assembly which is operable to positively move the recirculation damper blade between its open and closed position while simultaneously moving the vent damper blade between its closed and open position.

Abstract: A system for the capture and withdrawal of cooking vapors from above a cooking surface disposed in a room, such as a kitchen, comprising hood means disposed above the cooking surface, means for introducing air from outside the room through an inlet into the space between the cooking surface and the hood to entrain the vapors from the cooking surface, and filter means disposed within the space between the hood and the cooking surface at a vertical height less than the vertical height of the air inlet means for receiving vapor-ladened air and exhausting the same after filtration thereof.

Abstract: A sphygmomanometer system having a cuff, etc, and including both a regulator valve which normally bleeds the cuff pressure down at a substantially constant slow rate, and an exhaust valve which is operable to provide three rates of bleed, to wit nil, fast (as compared to the regulator valve bleed rate) and dump, the two valves together providing cuff bleed in accordance with predetermined schedule. The exhaust valve includes an elastic annular member compressible to achieve the fast and dump rates.

Abstract: A flexible endoscope for insertion into a body cavity for visual observation and medical procedures. A vacuum line slidable in a tube in the endoscope for projection beyond the distal end of the endoscope, with vacuum control, providing for removal of blood clots and the like while observing the operation. A multichannel endoscope providing illumination and viewing, vacuum removal, laser treatment and additional channels for needles, forceps and washing.

Abstract: A hand-held device for body care, in particular for tooth care and mouth care, which comprises a device casing serving as grip member, a hydraulic piston motor, an instrument holder alternatingly drivable by the motor, a liquid duct connectable to an external liquid pump, for feeding the hydraulic piston motor, and at least one adjustable valve for energizing and stopping the hydraulic motor. The device is adapted for use with treatment instruments which can be attached to the instrument holder in an interchangeable manner, in particular tooth brushes or spraying nozzles.

Abstract: An orthopedic traction harness which engages the skin around the limb to be put in traction. The traction harness comprises an inner, circumferentially adjustable, laminated traction band having an outer layer of a compressible sponge material, a central layer of a flexible unidirectional stretch mesh and an inner layer of another compressible sponge material, and an outer, variable pneumatic pressure cuff including a flexible air bladder inside an adjustable containment cuff having a squeeze bulb and a pressure indicator.

Abstract: An orthopedic implant for use in the internal fixation of a bone fracture by wiring, a method of fracture fixation by wiring which avoids bone resorption, and means for embedding the implant in the cortex of a bone adjacent the fracture site. The implant comprises a cylindrical body portion, a plurality of pointed pins at one end of the body portion, a circular bore through the body portion through which a wire may be passed, and at least one groove on the surface of the body portion in which a wire may be accommodated.

Abstract: An intrauterine contraceptive device of the type comprising the figure 7, the invention comprising the provision of a downwardly-extending element to the end of horizontal portion of the 7, the downwardly-extending element having a thread anchored thereto, the thread passing slidably through an orifice at the bottom end of the vertical portion of the 7.

Abstract: An intracervical contraceptive device comprising a tubular member open at each end and adapted to be positioned in the cervical canal and having a valve member incorporated therein which allows body fluids to pass from the uterine cavity into the vagina but not in the reverse direction.

Abstract: A device for testing the tightness of fit of a gas mask which has a tubular respiratory air inlet and a tubular exhaling air outlet, which is applied over the face of a wearer, comprises a bag-like headpiece which is engageable over the wearer's head and is preferably made of a transparent material, such as plastic, and which is provided with an opening for the wearer's neck and an opening for the tubular air inlet of the gas mask with a resilient rim for tightly engaging these parts when the headpiece is positioned on the wearer's head. The headpiece also includes a tubular exhaling air connection piece which is formed on the interior of the headpiece in a position to be engaged over the tubular exhaling air outlet of the gas mask. The connection piece includes an uptake passage for the passage of air directly from the mask outwardly through the passage.

Abstract: A filter mask characterized by a filter receptacle which carries a liquid, such as water, into which a plurality of air inlet tubes extend. Air is drawn through the liquid by reason of the vacuum caused by breathing, filtering the contamination, and then passes through an associated face mask. The filter mask effectively removes contaminates in the air, as various forms of dust, solid or semi-solid particles, pollen, chemicals and the like.

Abstract: A procedure is provided for producing a wound dressing having a crushed or uncrushed foam bonded to a woven, knit or nonwoven absorbent layer, particularly woven cotton gauze. The foam is self-bonded to the absorbent layer, i.e., no adhesive is needed to bond the foam. The foam may be applied by one of several methods. One procedure comprises applying a thin layer of foamed latex on a release medium. The dry foam, still on the release paper, is then simultaneously crushed and transfer bonded to the absorbent layer. A second method comprises applying the foam directly on the absorbent layer and crushing if desired. A third method comprises applying unfoamed material on the fabric and then causing foaming by the use of blowing agents then crushing if desired.

Abstract: An intravenous accumulator tube for storing fluid being administered through an intravenous administration set patient includes an expansible chamber connected inline in the intravenous administration set for accumulating and storing fluid being administered when flow stoppage or restriction is encountered, whereby the stored fluid may be administered to the patient when the flow stoppage or restriction is removed.

Abstract: A device and method for dispensing medication internally of the body utilize an implanted system which includes medication storage and dispensing control circuitry having control components which may be modified by means external of the body being treated to control the manner of dispensing the medication within such body. Coordinated pacemaking is also available.

Abstract: An improved defrostable cryosurgical instrument has a unitary in-line valve assembly that permits the assembly to be contained right in the instrument itself without making the instrument unduly large, heavy or upsetting its balance. By a fingertip control right in the instrument itself, the valve assembly can be controlled to route refrigerant through the instrument's tip to operate the instrument in a freeze mode, a defrost mode and to turn the instrument off, while simultaneously depressurizing the tip.

Abstract: This invention relates to a leader or trailer for a magnetic tape, which comprises a plastic support member, a coated layer consisting essentially of a pigment and binder on the surface of the plastic support and a lubricant layer on the back side of the plastic support, the pigment consisting of a mixture of at least two solid powders each having a mean grain size of (A) 0.002 to 3 microns and (B) 5 to 35 microns and the lubricant layer being coated in a proportion of at least 0.1 mg/m.sup.2.

Abstract: In response to actuation of a trigger, a spring loaded shaft drives an ear piercing dart through an earlobe disposed intermediate a pair of positioning guides. The stem of the dart is retained by a clamp, one positionable member of which is attached to one end of a torque rod rotatably mounted within the shaft and the other member is attached to the shaft. Upon rotation of a knob attached to the other end of the torque rod to a detent position, a torque is applied to the torque rod to urge the clamp into securely engaging the stem of the dart. The knob also serves as a means for cocking the shaft. On actuation of the trigger resulting in translatory movement of the shaft and knob and piercing of the earlobe by the dart, means are provided for automatically releasing the knob from the detent position and freeing the dart from the clamp.

Abstract: A novel medical catheter, formed of a rubber component comprising substantially a homopolymer of epichlorohydrin and fillers comprising silica and/or silicates, possesses sufficient tensile strength and flexibility and meets the sanitary requirements.

Abstract: A connector for connecting an endotracheal tube and the like to a source of air or gas. In the preferred embodiment, the end of the connector which fits into the tube is constructed with a bevel cut from the top of the connector to a point between the center line of the connector and the bottom thereof. As described below, this configuration substantially facilitates the insertion of the connector into the tube and avoids damaging the tube during the assembly procedure. Alternative embodiments of the tube end of the connector are also disclosed.

Abstract: A cone-shaped electrode for endocardial use as two insulated conductors which extend transthoracicly to a point exterior of the patient when the electrode is implanted. The connector is coupled to the conductors to provide an assembly which is connected with a pacemaker providing electrical impulses for ventricular stimulation. The pacemaker may be attached to the connector during implantation or immediately thereafter. A cannula-type applicator for the assembly is disclosed.

Abstract: A body-implantable, intravascular lead affixed with a pin or pins at its proximal end adapted to be connected to a pulse generator and with an electrode or electrodes at its distal end electrically connected via conductor means and adapted to be securely and permanently attached to a body organ. Electrode means in the form of an elongated member having a circumferential electrode formed on one end thereof and an opening passing therethrough from its proximal to distal end is affixed to the distal end of the conductor means. Tissue securing means extending beyond the opening in the distal end of the electrode means are provided for securing the electrode means into firm engagement with the tissue at the desired location. Movable means located in the opening in the electrode means are provided for protecting the tissue securing means from causing injury to a body vessel, heart valve, or other tissue as the lead is inserted and guided through a vessel to the desired location.

Abstract: A guide tube means for assisting in the fixation of an electrode to the heart of a patient, with the guide tube means being adapted for releasable retention of the electrode and its associated leads, the guide tube means including a lead-retaining sleeve along with a rod means for controllably dislodging the leads from the sleeve. The rod means includes means for releasably retaining the insulative backing or pad for the electrode, and is further provided with a radially extending ear for dislodging the electrode lead from the sleeve upon withdrawal of the rod means from the sleeve, thereby providing for the formation of a slack loop or segment adjacent the site of the electrode, the slack portion permitting relative motion to occur between the end of the guide tube and the electrode as fixed in position.

Abstract: The invention relates to combine harvesters having stone traps for collecting stones and other foreign objects before they reach the threshing means of the harvesters and enabling the trapped stones to be easily removed from the harvesters.

Abstract: Cereal grain thresher comprising: a feeder, a thresher and counter-thresher unit, a recovery chamber for threshed grains, a rotary air lock mounted in said chamber, a straw-remover disposed beyond said rotary air lock controlled from a fan distributing a current of pulsed air in the opposite direction to the grain flow, and an elevator. In one embodiment the straw remover is formed by a rotary drum carried on a fixed shaft and whose surface is provided with perforations. The shaft supports a trough having mounted at the base thereof an endless screw parallel to the shaft. Between the rotary air lock and the straw-remover is disposed a vertically reciprocated shaker comb having teeth to cause the threshed ears to jump and thus to facilitate the flow of the grains.

Abstract: A fire resistant cigarette has a wrapper having a coating applied as a dual treatment comprising the separate steps of coating the wrapper with a solution of an alkali metal silicate and coating the wrapper with a pH lowering material wherein the pH lowering material lowers the pH of the alkali silicate. The dual treatment of the cigarette is such that when the cigarette is smoked it produces a smoke which has a pleasing taste and the cigarette is fire resistant.

Abstract: The present invention relates to brown cigarette paper having reduced gas phase constituents during pyrolysis wherein the paper which has been stained with humic acid or salts thereof is further treated by washing with water in an amount effective to reduce the amount of water-soluble alkali metal salts present in the paper.

Abstract: A uniquely designed smoking pipe having a removable lighter mounted within the body of the pipe itself. The pipe components and design provide cleaning features, a variable volume tobacco bowl, and compatible use of the pipe with the lighter unit.

Abstract: A device for extinguishing lit objects comprising a water raising pipe which raises a level of water to a wall where lit objects are extinguished.

Abstract: A nozzle located within an access port of a fuel storage tank, directs a solvent spray at the inner surfaces of the tank and at a deflection plate designed to redirect the spray at areas within the tank that are inaccessible to the direct spray from the nozzle. The deflection plate includes a convex inner surface and a concave outer surface to redirect the spray to a number of diversely located areas.