Abstract: A tool for use in a can closing or seaming machine to adjust the spring pressure exerted by the can holding chuck spring is disclosed. The tool permits chuck spring adjustment in conjunction with a force gage in situ without necessitating the removal of the gage from the machine for each spring incremental adjustment as is necessary in the prior art. The tool is a self-contained unit which includes an axially guidable and turnable wrench member, the tool also serving as an adapter or spacer for positioning the force gage in the machine.

Abstract: A fireplace damper position indicator for indicating whether the damper to the flue is open or closed to prevent building a fire with a closed damper or leaving the damper open allowing air to escape from the room. The device briefly is a magnetic holder to attach to the fireplace lintel and a hanger pivotally secured to the holder to connect to a sign. The sign has indicia indicating "open" on one side and "closed" on the other side such that when the fireplace damper is open the sign is turned to read "open" indicating the damper is open.

Abstract: In coating a strip of material, such as web of paper, it is passed over a support member forming one of the enclosing surfaces of a closed chamber. The closed chamber is arranged to operate under vacuum conditions. Coating liquid is supplied in excess to the closed chamber to form a layer on the surface of the strip. At the end of the coating action, as the strip leaves the closed chamber, it is contacted by a movably positionable blade which provides a wiping-off action on the strip so as to remove the excess of coating liquid from the strip. The vacuum inside the closed chamber urges the blade against the strip. Therefore, it is possible, by varying the vacuum, to vary the amount of coating liquid adhering to the strip leaving the closed chamber.

Abstract: The device permits the application in the form of a mist on a sheet wholly or partly consisting of artificial or synthetic short fibres, such as cellulose acetate fibres, a liquid chemical agent for binding the fibres together, for example a specific plasticizer of the constituent material of the fibres. The sheet may be produced by a conventional paper-making method or a non-woven method and is intended for the production of cigarette filters. The device comprises a rotary support roller with which one face of the fibrous sheet is in contact in the zone of the spraying of the binding agent, the spraying being carried out on the other face of the sheet.

Abstract: Electrostatic powder coating installation includes an enclosure through which a movable filter belt extends. A suction device draws air and excess powder towards one face of the filter belt which has a predetermined permeability so as to collect the powder on one face thereof and to allow air to flow therethrough to an exhaust plenum. A second movable belt formed of a coarse, monofilament, screen material is disposed in registry with the other face of the filter belt to prevent contact between the filter belt and the exhaust plenum. A cleaning device removes the excess powder from the one face of the filter belt; which powder, through a separator, is collected in a supply container for reapplication to the workpiece.

Abstract: Apparatus for permanently and protectively mounting "wet" thin sections of biological specimens on microscope slides, wherein each specimen is initially bathed in a low-volatile solvent containing a low concentration of first polymerizable material. Such solvent is allowed to evaporate, whereby the liquid polymerizable material permeates and protects the specimen. Following solvent evaporation, a second polymerizable material is layered over the specimen. Preferably, the first and second polymerizable materials comprise a mixture of low-volatility, low-viscosity, liquid acrylic reactomers and a U.V. light-sensitive catalyst system. A conventional cover slip or other planar transparent member can be positioned over the polymerizable materials, and the same are polymerized by exposure to U.V. radiation. The first and second now-polymerized materials encapsulate the specimen on the microscope slide, become integral and completely hardened and are fully devoid of any solvent.

Abstract: The intensity of development of latent images on dielectric receptor sheets in a liquid bath which contains a dispersion of toner particles and fills a vessel between two electrodes one of which supports a sheet in such a way that the latent image faces the other sheet is regulated by measuring the current which flows between the electrodes in response to insertion of a fresh sheet between the electrodes, comparing the measured result with a preselected reference value, and evacuating the bath from the vessel to thereby terminate the development when the ratio of measured result to the reference value is one-to-one or another preselected ratio.

Abstract: Disclosed is a device for measuring the concentration of toner in a developer mixture composed of toner and a ferromagnetic carrier material, e.g., in an electro-photographic developing device. The device comprises a measuring oscillator which comprises an inductance-including component comprising at least one coil wherein the conductor paths of the coil lie substantially in one plane; means for passing at least a portion of the developer mixture into the zone of the inductance; and means for evaluating changes in the frequency of the oscillator resulting from changes in the developer mixture composition passing over the zone of inductance. Also disclosed is an electro-photographic copying apparatus embodying the foregoing device.

Abstract: An anabolic recovery unit for small animals having a rectangular frame with side walls, end walls and a top surface, the bottom edges of the walls being in a common plane forming a base on which the frame rests, a rectangular shelf supported within the frame below the top and having means of varying the spacing between the shelf and the lower surface of the frame top, and a electric heating element supported on the frame whereby the top of the frame is maintained at a selectable temperature beneficial to small animals lying on the frame top.

Abstract: A method and device for practicing aquaculture in the open sea which basically comprises a bow net means of rigid construction having means permitting it to float in a partially submerged condition or fully immersed in the water without touching the bottom of the sea. The bow net means includes constant-buoyancy tanks and variable-buoyancy tanks, the latter being adapted to be filled with either air or water.

Abstract: A flume for the production and growth of bivalves comprising a plurality of upwelling and production trenches contiguous to each other and in series with an upwelling trench located before each production trench, a water distribution system for effecting a continuous flow of water through said trenches, with each production trench having a conduit associated therewith for adding nutrient-bearing water to the main water supply coming from the previous upwelling trench, whereby each production trench receives the proper amount of nutrient for nourishing a supply of bivalves positioned therein.

Abstract: This invention relates to a protozoan marine life inhibitor system for use with a marine aquarium. The system includes first, second and third conduits, a pump and an electrolytic protozoan marine life inhibitor unit. The first conduit is in communication with water in the aquarium and the pump. The second conduit is interconnected between the pump and the electrolytic protozoan marine life inhibitor for delivery of water from the aquarium through the first conduit, the pump and the second conduit to the electrolytic protozoan marine life inhibitor unit. The third conduit is connected to the electrolytic protozoan marine life inhibitor and is positioned to receive and return water to the marine aquarium. The electrolytic marine life inhibitor includes an alternating current power source and a pair of spaced apart electrodes electrically connected to the alternating current power source.

Abstract: The invention is a disposable pet dish for feeding and watering pets. The disposable dish is presented in several embodiments to stand alone or to fit a variety of support frame structures. Such support frame structures, as part of the invention, may be of a wire frame type structure or of a monolithic molded frame type structure. The disposable dish may be formed in several configurations to fit the support structures. The disposable pet dishes are easily transported when travelling and eliminate the need for constant washing. It is a sanitary approach to pet feeding, to keep an area clean so that insects, rodents, and other pests are kept under control, and to provide a simple effective means of controlling the eating habits of pets.

Abstract: A means for adjusting the heights of animal waterers in a multi-cage livestock confinement system includes an elongated water pipe rotatably mounted along an elongated partition which closes one side of a plurality of longitudinally positioned livestock cages. The water pipe is connected to a source of water under pressure and a watering valve in each cage is attached to the water pipe so that the elevations of the watering valves are adjusted in response to rotation of the water pipe about its longitudinal axis. A lever may be extended from the water pipe at the same attitude as the watering valves for rotating the watering pipe and indicating the elevation of the watering valves.

Abstract: A cold water inlet tube located in a horizontal position adjacent the bottom of a commercial water heater. Intermittent discharge openings or nozzles are provided in the bottom of the tube and directed at an angle to discharge jets of incoming cold water to the bottom of the water heater in which the tube is assembled to agitate any sediment tending to be deposited on the bottom head of the heater. Similarly, a single generally centrally located opening or nozzle is provided in the top or upper portion of the tube to discharge a jet of cold water upwardly towards the hot water in the upper portion of the water heater to reduce stacking of the water stored in the water heater.

Abstract: A heat exchanging apparatus for reducing the temperature of a heating fluid prior to thermal communication with a heated fluid. The apparatus includes an integral pre-cooling heat exchanger located within a main heat exchanger. The pre-cooling heat exchanger brings the heating fluid into thermal communication with the heating fluid circulating in the main heat exchanger so that the heated fluid is prevented from departing from nucleate boiling in the main heat exchanger.

Abstract: A furnace in which burners are incorporated into water-cooled tube panels without the need for heavy steel castings, the furnace including one or more walls formed of upright tubes having fins connecting adjacent tubes, some of said tubes and associated fins in said wall or walls for at least part of their length being outwardly, with respect to the interior of the furnace, out of line with other tubes in said wall to define upright recesses, fuel nozzles and openings for the entry of combustion air being provided through the portions of said fins which define in part the upright recesses, the arrangement of said fuel nozzles and said openings being adapted such that fuel supplied from said fuel nozzles and combustion air supplied from said openings enter the recesses in converging streams.

Abstract: A boiler is presented improved in capacity and efficiency and causing less pollution and noise wherein a first tubular wall means and a second tubular wall means outwardly of the first wall means encompassing the first wall means therein are disposed within a boiler casing to form a combustion chamber inside of the first wall means, each of the wall means comprising an outer wall and inner wall to form a space therebetween which is coupled with the both chambers to allow communication therebetween through the space, gas duct means extending from the combustion chamber to outside of the boiler casing within the spaces of the respective wall means in a mandering fashion utilizing gaps formed between the first and second wall means and between the second wall means and the boiler casing.Additional gas passage means may be provided in the first wall means or in the both wall means so as to diverge the combustion gas flow adjacent opening means of the duct means sucking the combustion gas.

Abstract: A short-stroke steam lance is reciprocated through an opening in a furnace wall. A protuberance is mounted on a section of the lance to extend into spiral grooves of a structure mounted on the framework. The steam to the lance is supplied when its valve is actuated by the lance moved into its extreme forward position.

Abstract: A feed water preheater has an integral desuperheater and an integral supercooler through which passes the feed water tube bundle. To prevent the penetration of steam into the supercooler at the point where the feed water tube bundle passes from the supercooler into the condensation space through a support plate, the tubes of the tube bundle are surrounded by sleeves which are fixed to the support plate. Steam flowing through the sleeves condenses and fills the sleeves to prevent the entry of steam into the supercooler. Sleeves are also provided at points where the tubes pass between the desuperheater and condensation space to reduce the velocity of steam traveling from the former to the latter. The latter sleeves can be oriented vertically in the case of a vertical preheater, as long as they are longer than the thickness of condensate disposed on the support plate in the condensation space.

Abstract: A control circuit for a speed governor is disclosed which provides governing action at a preset governed speed by means of a reversible electric motor. An engine speed signal generator is coupled with a logic circuit which controls a pair of driver transistors for the motor. An acceleration logic circuit is operative to invoke governing action before the governed speed is reached if the acceleration exceeds a predetermined value. Also an overspeed logic circuit is operative to allow the motor to be driven in the close throttle direction beyond its normal reference position so long as an overspeed condition exists.

Abstract: A method and apparatus for varying the fuel ratio of an air-fuel mixture supplied to the carburetor of an internal combustion engine. In a first embodiment, a valve opens and closes a port in an aluminum block between a passage coupled to the PCV and carburetor and a second passage open to the atmosphere. A spring in the second passage modulates the air flow as a function of vacuum pressure and thermally responsive means maintains the valve closed until the engine reaches its operating temperature. In a second embodiment the valve is opened as a function of the wind pressure produced during vehicle movement.

Abstract: An ignition control device for changing the ignition timing of an internal combustion engine during and after the occurrence of engine braking, i.e., during a condition of increased speed and low load, as during coasting. The device includes a circuit which receives signals related to engine load and engine speed and determines therefrom the onset of engine braking. The device then retards the engine timing so as to reduce the amount of positive engine torque, whereafter the fuel supply may be entirely shut off. Upon establishment of normal operation or idling, the fuel supply is restored and the ignition timing is gradually returned to the normal setting.

Abstract: Method and system for controlling ignition timing includes the steps of and means for discriminating when the time interval between knocking indicative signal pulses is shorter than a particular time period, and controlling ignition timing at a rate related to the frequency of occurrence of knocking to prevent the knocking from occurring. A pulse train is generated having an interval shorter than that of the knocking signal pulse train when the interval of the knocking signal pulse is shorter than the particular time period. The generated pulse train is fed to a control circuit for determining the time by which ignition pulses should be delayed.

Abstract: A two-stroke cycle diesel engine having at least one two-stroke cycle power cylinder-piston assembly incorporating uniflow scavenging and having two horizontally opposed pistons, at least first and second scavenging ports and two crankcases which may perform crankcase compression; a pump assembly including at least one scavenging pump cylinder-piston assembly of the reciprocating type which is separate from and is driven by the power cylinder-piston assembly; a scavenging air introducing device which introduces scavenging air compressed by the pump assembly to the first and the second scavenging ports through first and second passage systems, respectively; and a fume generating device incorporated in the second passage system and supplying fuel mist in an initial part of the air supplied through the second passage system; wherein the fume is supplied as stratified with exhaust gases so as to be heated by the exhaust gases toward decomposition and then the first passage system is interrupted before the pump as

Abstract: A system for feeding gasoline fuel into a gasoline burning internal combustion engine is disclosed herein along with its method of operation. In accordance with this system and method, gasoline fuel in a liquid state is supplied to a vaporization chamber where it is vaporized and thereafter directed to the engine for combustion therein. In order to prevent this vaporized fuel from condensing back to a liquid, a supply of air is preheated to a controlled predetermined temperature and directed into the vaporization chamber where it combines with the vaporized fuel and is passed with the latter to the engine.

Abstract: A rope for actuating a recoil starter is trained about a movable pulley outside a main body of the recoil starter, and the movable pulley is rotatably supported by a swing arm or a handle. By moving the swing arm in swinging movement or pulling the handle, the movable pulley can be moved to thereby pull the rope out of the main body of the recoil starter to start the engine. By virtue of the action of the movable pulley, the distance covered by the movement of the swing arm or the handle is smaller than the length of the portion of the rope paid out of the main body of the recoil starter to actuate the recoil starter. At least one further pulley may be provided for guiding the rope in its movement, and a manually operated handle may be additionally attached to the rope. Pulling of the rope automatically makes it possible to actuate an auxiliary engine starting means.

Abstract: An internal combustion engine has a plurality of air intake conduits, air intake nipples, an air filter operatively coupled to the air intake conduits, a sound insulating capsule covering the engine, and at least one inlet opening in the capsule for admitting intake air. The intake conduits are integrated in the capsule and are directly connected to the respective air intake nipples.

Abstract: An engine of a motor vehicle is equipped with a sound-insulating cover which is secured to a portion of an engine proper to surround the engine proper. An oil pan filled with engine oil is hermetically connected to the bottom portion of the sound-insulating cover so that the oil pan is spaced apart from the skirt portion of a crankcase.

Abstract: A combined gear cover and mount for an internal combustion engine is disclosed for use on an engine having a vibration damper mounted on a projecting end of the engine crankshaft wherein the gear cover includes a housing for enclosing the vibration damper while re-enforcing the engine mount formed integrally with the gear cover. The gear cover is adapted to connect with a gear plate mounted directly on the engine block to form an enclosure for the gear train of the engine. The gear cover also includes an integral fan clutch housing and a lubrication fluid transfer passage for an engine driven air compressor.

Abstract: An internal combustion engine having a plurality of cylinders which are divided into a first cylinder group and a second cylinder group. The engine comprises a first throttle valve and a second throttle valve for controlling the amount of combustible mixture fed into the first cylinder group and the second cylinder group, respectively. The engine further comprises a first actuating means for rotating the first throttle valve faster when the engine load is low than when engine load is high, and for rotating the second throttle valve only when the engine load level is higher than a predetermined level. This first actuating means is energized only when the engine temperature is higher than a predetermined value. The engine further comprises a second actuating means for rotating both of the first and second throttle valves in accordance with the engine load level. This second actuating means is energized only when the engine temperature is equal to or lower than the above-mentioned predetermined value.

Abstract: An internal combustion engine is disclosed which comprises a plurality of cylinders split into first and second groups, means responsive to engine low load conditions for cutting off flow of fuel and fresh air to the second group of cylinders, an exhaust passage provided at its downstream end with a catalyzer, a partition extending through the exhaust passage to the vicinity of the catalyzer to divide the exhaust passage into two passages, one connecting with the first group of cylinders, the other connecting with the second group of cylinders, an EGR passage bypassing the second group of cylinders for exhaust gas recirculation, and an EGR valve provided in the EGR passage and adapted to open the same in response to engine low load conditions.

Abstract: An apparatus for electrically controlling the spark advance of selected cylinders of a multicylinder engine so that the spark of the selected cylinders is advanced beyond others of the cylinders. For example, the selected cylinders may be advanced beyond normal operational advance to increase combustion chamber temperatures and pressures for a relatively short period so as to clean the surfaces of the combustion chamber. The cylinders which are advanced are changed in sequence or at random so that all of the cylinders are cleaned. The system may also be used to control the spark advance of the cylinders to provide differing advances for the respective cylinders to accommodate differences in operational conditions at the cylinders.

Abstract: An induction system for an internal combustion engine having a relatively large main intake passage that supplies the cylinders under medium and high load conditions and a relatively small auxiliary induction passage that feeds the cylinders under idle and low load conditions. The flow through the induction passages is controlled by a main and an auxiliary throttle valve which are interconnected by a linkage system that improves induction efficiency throughout the engine speed and load ranges.

Abstract: Problems associated with warm engine starting of spark-ignition internal combustion engines with continuous injection into the intake manifold and fuel injection systems of the type utilizing a measuring element and a deliberately operable power control element connected in series, the measuring element being moved as a function of the air volume through-put so as to displace a fuel valve disposed in a fuel supply line for metering a volume of fuel which is proportional to the air volume and which has a warmup control connected by a control pressure line with the fuel valve and a zero-pressure fuel return line with a fuel tank for enriching the fuel-air mixture during the warmup of the internal combustion engine are avoided according to the present invention by an improvement comprising a bypass line interconnecting the control pressure line of the fuel pressure line in bypassing relationship with respect to the warmup control.

Abstract: A flow regulating device for use in a single-point control electronic fuel injection system. The flow regulating device receives a discrete, pressurized fuel pulse or charge from a fuel injector and extends its time duration over the charge cycle period to approximate a continuous flow. The extended fuel charge is provided to an atomizer for mixture with air preparatory to being drawn into an engine intake manifold. In one embodiment of the invention, the flow regulating device includes a constant pressure valve together with a restricted flow passage. The pressure setting of the valve is below the pressure at which the discrete fuel charge is emitted from the injector, and the restricted passage has an orifice dimension smaller than that of the injector nozzle. In another embodiment of the invention, the flow regulating device takes the form of a pair of parallel connected constant pressure valves together with restricted flow passages.

Abstract: An engine control system which controls the engine fuel injection amount and the ignition timing by being supplied with and processing the rotational speed signal produced on the basis of the output of a rotational speed sensor producing the rotational speed signal at every predetermined engine crank shaft angle and an intake air amount signal from an air amount sensor for detecting the intake air amount of the engine. At certain predetermined engine rotational angles, the rotational speed signal and the intake air amount signal are read and compared with the previously-read rotational speed signal and intake air amount signal respectively, thus detecting changes therein respectively. These changes and signal values are used to correct control signals for ignition timing and fuel injection amount.

Abstract: There is disclosed a new and improved air-fuel metering regulator which provides for extremely fine adjustment of the flow of fuel to the internal combustion engine which may be operating under idling, cruising or various accelerating power circumstances. This is provided, in the preferred embodiment, by the novel arrangement of the separate air and fuel diaphragm and chambers with extremely fine adjustments being provided in both the air or vacuum chamber bodies and the fuel chamber bodies to limit the travel of both diaphragm assemblies in their respective linear directions toward or away from the vacuum or fuel chamber bodies. As a result of the fine adjustments possible and the particular layout of the chambers, more precise and upgraded performance is available in the internal combustion engine as a result of the fuel supply to the internal combustion engine being made more responsive to the various operating conditions of the engine.

Abstract: A carburetor with a pressurized fuel source is provided. The carburetor has an upright passage extending therethrough with an intermediate fuel-supply portion in which is located a fuel injection tube having a plurality of orifices extending therealong through which fuel is directed under pressure into the passage. An air-control slide valve is mounted for movement across the passage between an open and a closed position and has a closure member or plug which regulates the number of orifices of the injection tube through which the fuel is supplied. The closure member is connected to the accelerator pedal in a manner such that the member opens at least one additional orifice during acceleration before the air-control slide valve opens more, to provide additional fuel during acceleration. Also, during deceleration, the closure member closes at least one additional orifice before the slide valve moves toward the closed position.

Abstract: A one-way throttling valve for use in the vacuum line of a pneumatic membrane actuator which controls the combustion air temperature of a carburetor-euipped internal combustion engine by means of an air flow proportioning flapper admitting cold raw air and/or preheated raw air into a duct junction upstream of the intake filter, the throttling valve having a tiny throttling orifice which remains open, while the throttling valve itself is closed, thereby delaying the removal of negative pressure from the pneumatic actuator. The one-way throttling valve may be arranged in one of the two vacuum line connectors of the valve housing of a thermostat relief valve.

Abstract: Exhaust gas recirculation system controlled by a microcomputer for an internal combustion engine comprises a pressure sensor for measuring the pressure of the exhaust gas downstream of an orifice disposed in the exhaust gas recirculation passage, a microcomputer for electrically controlling an electromagnetic valve which fluidly controls an exhaust gas recirculation control valve arranged in the exhaust gas recirculation passage, in view of the comparison of an optimal pressure of the exhaust gases, derived from the engine parameters, and the actual pressure measured by the sensor. The gear position of the transmission, engine temperature, engine speed, and the intake airflow rate are used in the microcomputer to produce an output signal with which the electromagnetic valve is controlled.

Abstract: In an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a servomotor to be operated by pneumatic pressure and a control valve actuated by the servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe. The pneumatic pressure applied to the servomotor is electrically controlled without undesired errors to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed:Pe=f(Pv, N)where Pe is the pneumatic pressure applied to the servomotor, Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

Abstract: An engine crankcase vacuum system wherein a check valve is interposed between the intake manifold and the fuel pump and is in open communication with the crankcase breather of the engine in order to rapidly create and maintain a vacuum in the crankcase. The crankcase vacuum greatly reduces oil migration around the piston rings and valve guides of the engine in order to reduce oil consumption, decrease contamination of the combustion chamber from oil leakage, and reduce detonation tendency. The crankcase vacuum also allows a reduction in oil ring tension which in turn reduces engine friction, resulting in a high power output and cooler running engine during operation thereof.

Abstract: An induction system for an internal combustion engine having both main and auxiliary induction passages serving a given cylinder. The auxiliary induction passage has a substantially smaller sectional area so that a charge delivered to the cylinder through this passage will enter the cylinder at a substantially higher velocity to improve combustion and efficiency. The flow ratio between the respective passages is controlled by a throttle valve arrangement. In accordance with an embodiment of the invention, the throttle valve arrangement consists of a pair of throttle valves positioned in a common passage and rotatable in opposite directions relative to each other. This opposite rotation increases turbulence and further aids in improving combustion. In accordance with another disclosed feature, a hot spot is provided for heating both the main and auxiliary induction passages.

Abstract: An archery bow includes a handle including a primary section having a sight window segment extending inwardly well beyond the bow center line. Additional strength and resistance to twisting of the bow limbs attached to the handle is provided by a supplemental handle section affixed to the inside surface of the primary handle sight window segment as well as to the inside handle surface in an area well below the sight window. A completely peripherally enclosed thumb opening extends horizontally through the handle intermediate the two sections to provide, along with a grip portion of the primary handle section, a comfortable and positive grasp of the bow during its draw and release.

Abstract: A bow string drawing and releasing device including a rigid frame within which a pair of jaws are pivotally arranged. An operating rod is rearwardly positioned and is adapted to be rearwardly pulled to pivot the jaws from a normally closed, bow string retaining position to an open, bow string releasing position. A handle grip portion extends rearwardly from the frame and the operating rod extends through the handle grip portion. In one embodiment, the handle grip portion is adapted to rotate relative to the frame. In another embodiment, the handle grip portion is adapted to pivot relative to the frame for triggering purposes.

Abstract: This fire starter unit includes a hollow body providing a combustion chamber and formed from identical panels having inwardly bent overlappingly interconnectible side margins. A wire grate disposed within the body is carried by the panels and provides a stiffener for the body. A carrying handle is attached to the overlapping side margins at one corner of the body and the body is configurated to retain a removable grill at the upper end.

Abstract: A barbecue mountable in a wall recess as a folded unit having a thickness less than the corresponding dimension of the wall. The barbecue includes a cooking assembly and a sliding hinge mechanism which attaches the assembly to the wall and allows the assembly to be unfolded and moved away from the wall to a position of use. A carrier frame of the cooking assembly supports a removable fuel pan and is fitted with folding parts which carry a detachable rack above the pan.

Abstract: A humidifier is disclosed for use with a forced air furnace in which water flowing in a coiled tube disposed in the exhaust path for waste gas from the combustion chamber is vaporized by heat transfer from the waste gas and transferred in admixture with unvaporized water into a container in the warm air duct of the furnace. The steam humidifies the air while the unvaporized water is separated and returned to the exhaust path of the combustion chamber where it in turn is vaporized and vented to the atmosphere. The heat transfer to the water in the coiled tube is enhanced by a convoluted configuration of the tubing which induces turbulence in the waste gas and/or water. The humidifier is regulated by controls which are response to the flow of air through the furnace as well as to the humidity.

Abstract: First and second, complementary andirons supporting opposite ends of fuel logs in a fireplace are adapted to increase heat transfer to a room. Each andiron comprises a hollow, U-shaped andiron housing with adjacent ends forming, respectively, an inlet and an outlet. A blower attached to the inlet establishes a stream of forced air within the housing and through the outlet into the room. A heat exchanger, formed of a solid rod member with adjacent members in contact with each other, is distributed along the interior of the housing to transfer stored heat energy to the air stream. An adjustable air director at the outlet enables the heated air to be directed toward any portion of the room.