Abstract: A portable humidifier that comprises a base unit that produces mist and a connecting member (bottle adaptor) that detachably connects one or more types of reservoirs (disposable water bottles) to the base unit. The connecting member (bottle adaptor) includes a first connecting portion that detachably connects the one or more types of reservoirs (disposable water bottles) to the connecting member, a second connecting portion that detachably connects the connecting member to the base unit.

Abstract: In a liquid substance supply device, a three port two valve directional control valve is provided in a transfer line, and a substance container and the transfer line are connected together by a four port three valve directional control valve in such a way that the four port three valve directional control valve and the substance container can be removed from the transfer line as a unit. Furthermore, in a vaporizer, an orifice member is provided to surround the end portion of an internal conduit in which flows a mixture substance consisting of a gas and a liquid substance mixed therewith, and gas for atomization is spouted into a vaporization chamber through a gap defined between the internal conduit and the orifice member. Yet further, the temperature of a vaporization surface in the vaporization chamber can be controlled independently in correspondence with the nature of the liquid substance.

Abstract: A gas dissolved water producing apparatus includes a gas dissolving section, a gas channel for guiding a gas into the dissolving section, a first water channel for guiding water into the dissolving section, a gas dissolved water discharge channel, and a second water channel for guiding the water without passing through the dissolving section. The second water channel joins the gas dissolved water discharge channel to control the solution gas dissolved in the gas dissolved water can be controlled to a prescribed level of concentration.

Abstract: A portable cooling unit (i.e. a mister) having a portable frame on which a fan and a water tank is mounted. A pump is mounted on the frame for pumping water from the tank to nozzles in a mister head which, in turn, is mounted on the front of the fan. Both the direction and the flow through the nozzles are adjustable.

Abstract: A carburetor having a plurality of orifices at different locations adjacent to the sidewall of the airflow passage therethrough and connecting passages communicating the orifices with a fuel source, such that different airflow conditions through the airflow passageway will generate different negative pressure conditions in the respective orifices and connecting passages, such that fuel will be drawn to the airflow passageway through the orifice or orifices and connected passage or passages with the greatest negative pressure conditions therein, a primary operational result being fuel delivery capable of rapidly changing corresponding to rapidly changing airflow conditions in the airflow passageway corresponding to changing operating conditions.

Abstract: The present disclosure relates to an evaporative cooler for a turbine intake system. The evaporative cooler includes a reservoir for holding water, a media, a manifold for dispersing the water from the reservoir above the media, a manifold flow line extending from the reservoir to the manifold, a collector for collecting the water below the media, and a pump for pumping the water through the manifold flow line from the reservoir to the manifold. The evaporative cooler also includes a return line for returning the water from the collector to the reservoir, at least one water supply line for supplying the water to the reservoir, and a valve structure for controlling flow through the at least one water supply line. The evaporative cooler further includes a level sensor for indicating whether a top surface of the water within the reservoir is: (1) above or below a first water line; and (2) above or below a second water line positioned below the first water line.

Abstract: A humidifier bottle assembly and a method of dispensing water from humidifier bottles are provided. The humidifier bottle assembly includes a first and a second humidifier bottle adapted to hold water and a humidifier bottle receptacle adapted to receive the first and second bottles. In one embodiment, the receptacle includes a device adapted to determine which of the first and second humidifier bottles contains more water. The device is operable to dispense water from the humidifier bottle containing more water. In an exemplary embodiment, the device comprises a pivot mechanism configured to raise one of the first and second bottles and lower the other of the first and second bottles within the receptacle, so as to activate a dispensing plunger and stopper, thus dispensing water from the bottle containing more water. In another embodiment, each bottle includes a dispensing mechanism adapted to dispense water from the bottle into a reservoir.

Abstract: A twin jet carburetor includes a venturi having an elliptical cross section. Two needle jets and jet needles supply fuel to the airstream, allowing the system to operate as two carburetors in one body, but its overall size is much smaller. The elliptical shape venturi and pair of jets provide improved atomization and satisfy engine requirements at high rpm and wide-open throttle positions.

Abstract: Liquid is sprayed in two partial streams into a tank filled with a gas atmosphere and collects at the bottom of the tank. One partial stream sprayed into the atmosphere prevalent collects at the bottom of the tank. At least one other partial stream is fed into the liquid collected at the bottom of the tank. The partial streams are withdrawn from a shared liquid supply.

Abstract: In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers.

Abstract: In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers.

Abstract: A method of plasma-processing which includes the step of plasma-processing a matter mounted on a component in a plasma processing vessel by using plasma gases, and the step of introducing an inactive gas into the plasma processing vessel when no plasma process is conducted in the vessel and gases resulted from the previous plasma process remain therein.

Abstract: A valve assembly is provided for controlling the flow of fuel to the fuel chamber of a carburetor. The valve assembly includes a housing and a needle. The housing includes a side wall defining an inlet, an outlet in fluid communication with the inlet, and an interior region between the inlet and outlet. The needle is received in the interior region of the housing for movement therein between a closed position blocking the flow of fuel between the inlet and the outlet and an open position allowing the flow of fuel between the inlet and the outlet. The needle includes a post and a skirt fixed to the post. The skirt extends outwardly from the post and cooperates with the side wall to restrict the flow of fuel therebetween dampening the movement of the needle relative to the housing so that the needle moves with the housing when the housing vibrates in response to the operation of the engine.

Abstract: In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers.

Abstract: An attachment for a fuel carburetor possesses a fuel inlet, a needle-and-seat valve disposed in the inlet, and a float attached to the needle-and-seat valve. In one embodiment, the attachment is placed between and is in fluid communication with both the float bowl and the metering block of a typical carburetor. Fuel is pumped into the float bowl and the attachment in parallel from the fuel pump. The float in the attachment rises and falls according to the level of fuel in the interior of the attachment and float bowl, and thus regulates the position of the needle-and-seat valve, which in turn regulates how much fuel is pumped into the attachment and float bowl. The attachment is also provided with a device for injecting a spurt of fuel directly into the metering block to avoid lean fuel conditions when the throttle is initially opened. In an alternative arrangement, the float bowl and attachment are made as one integral unit.

Abstract: A misting assembly for an exhaust gas scrubber tower which includes an elongated central member, a plurality of perforated baffle plates affixed to the elongated central member at spaced apart distances thereto such that the perforations from each baffle plate are out of alignment with those of the next higher baffle plate. An inner tubular ring and an outer tubular ring are affixed to each baffle plate wherein the diameter of the inner tubular ring and of the outer tubular ring are different from the diameters of the inner and outer tubular rings of the other baffle plates. Spray nozzles are affixed to each ring at regular radially spaced apart locations around each of said inner and outer rings such that the integrated density of fog generated by said spray nozzles over all of said baffle plates is substantially uniform.

Abstract: There is disclosed herein an arrangement for limiting the rotation of adjustment valves which control main and idle fuel paths in a diaphragm carburetor. The valves are disposed relatively close together and have caps that are configured to act as stoppers for each other so as to limit the maximum rotation of each valve.

Abstract: A low cost multi cylinder radial aircraft engine is composed of an even number of individually functional, single cylinder slider crank model engines. They are mounted to a plate to form equally spaced radially oriented cylinders. In the preferred embodiment, use of standard, low cost, & mass produced two cycles engines are used. This in conjunction with a novel exhaust muffler and throttle mechanism results in a low cost radial engine. The individual engine shafts surround and are parallel to a central output shaft. Pinion gears on each shaft transfer power to a larger sun gear on the output shaft. This gearing synchronizes opposed pistons to reach top dead center at the same time resulting in vibration free piston motion and perfect balance of the entire engine. Said gearing also provides speed reduction for use of large diameter scale propellers. A rear mounted throttle mechanism controls individual carburetor throttles.

Abstract: A method for cooling a hot product gas containing adhesive or fusible particles include injecting a ring-shaped jet of a cooling fluid into a gas to be cooled in a cooling zone in a flow direction of the gas, with separation of the jet into a plurality of individual cooling fluid jets with mass and penetration depths corresponding to the mass of product gas streams flowing through individual ring-shaped parts of the cooling zone. The injection speed of the cooling fluid jets are selected so as to obtain a desired penetration depth.

Abstract: The present invention is embodied as a fuel vaporization apparatus for use with an internal combustion engine for supplying vaporized fuel to the carburetor so as to provide a more efficient and economical burning of the fuel. The device comprises two exhaust manifolds through which engine exhaust passes, a heat exchange plate attached at the upper end of the exhaust manifold, and a vapor generator chamber attached adjacent the heat exchange plate and connected to the exhaust manifolds. A fuel inlet device delivers atomized fuel into the heated vapor generator chambers before it enters the carburetor. The two vapor generator chambers are connected by a vapor passage element forming one large vapor generator device which entraps a supply of vaporized fuel.

Abstract: An ultrasonic humidifier having a pair of water tanks which release their water into a reservoir in a staggered sequence. The staggered emptying of the water tanks enables the tanks to be refilled in a more efficient manner. Several different embodiments are disclosed.

Abstract: A motorless carbonator including a double acting diaphragm type pneumatic water pump is connected between a carbonator tank and a water supply. The pump is driven by the carbon dioxide fed to the carbonator tank. Control of the pump is by way of an electrically operated shut-off valve which is opened and closed in response to a water level sensor in the carbonator tank. Coupled between the carbonator tank and the pneumatic pump is a spring biased diaphragm valve assembly which is normally biased closed, but is opened when the pump is actuated to feed water into the carbonator tank.

Abstract: A carbonation system employing a pneumatic pump which operates off of a pressurized source of carbon dioxide which is itself employed for the carbonation process. The pneumatic pump serves as both a precarbonation chamber and a reservoir for receiving water from a low pressure source and subsequently transferring precarbonated water to a carbonation tank. Sensors within the pneumatic pump assure that a proper volume of water is maintained within the precarbonation chamber and available for transfer to the tank. Both the pneumatic pump and the carbonation tank operate off of the same supply of pressurized carbon dioxide, but the pressure provided to the tank is slightly less than that presented to the pneumatic pump.

Abstract: The invention concerns a process and an apparatus for maintaining a very thin film in an exchanger involving a flowing liquid film. The process wherein the liquid films are fed by gravity from a liquid source is characterised in that: each film is fed at the permanent flow (kd.sub.1) corresponding to the feed flow rate (d.sub.1) of the source; then for a short period of time the flow rate is increased to a transient value (kd.sub.2) for establishing a continuous film over the whole of the corresponding flow surface; then operation returns to the flow rate (kd.sub.1) for the film in question, the short periods of feeding the different films at their transient flow rates (kd.sub.2) being displaced in respect of time. The apparatus according to the invention comprises at the top of each flow tube a movable sleeve, lifting movement or rotary movement of which opens a supplementary communication between the liquid source and the tube, permitting the film flow rate to assume the transient value (kd.sub.2).

Abstract: Disturbances can occur in handheld portable tools driven by internal combustion engines because the idle-nozzle system and the main-nozzle system influence each other. The carburetor of the invention prevents this disturbing influence and provides a control of the engine which is proportional to speed. The carburetor includes a control member which closes off the main nozzle during idle operation and the idle nozzle during operation under load in dependence upon the position of the throttle flap.

Abstract: An out-of-step blocking unit of a protective relay for detecting faults in a three phase alternating current electrical power distribution system utilizes restraint signals in conjunction with an operating signal to generate a net operate signal as a restraint to the relay in order to prevent operation of circuit breakers associated with the relay as a result of load swings in the power distribution system. The restraint signals include a signal related to a negative sequence component of current flowing in the distribution system; a signal related to a zero sequence component of current flowing in the power distribution system; and a signal related to a .DELTA. (IZ-V) quantity which is the difference between fault and prefault values of the quantity (IZ-V).

Abstract: A temperature compensated carburetor having a fuel metering system including a variable restriction needle gate valve for varying the effective flow cross-sectional area of the main and/or idle fuel supply duct to modulate the flow rate of fuel to the carburetor venturi mixing passage. The needle gate valve is made of plastic material having a much greater coefficient of expansion than the aluminum carburetor body in which it is adjustably mounted such that differential linear expansion and contraction of the needle valve relative to the carburetor body in response to ambient temperature changes varies the flow-controlling cross-sectional area of the fuel duct inversely relative to ambient temperature changes. The needle valve is a rod-like body with a threaded cylindrical mounting portion at one end threadably secured in a threaded bore in the carburetor body.

Abstract: A carburetor includes a metering assembly in which the effective area of the metering orifice varies in direct proportion to movement of a vlave stem. Primary and secondary fuel circuits are controlled by the assembly in response to air flow through the carburetor to maintain an optimum fuel-to-air ratio under various load and atmospheric conditions.

Abstract: A carburetor with a fuel nozzle in the throat, an upstream butterfly valve, a downstream butterfly valve, a first vacuum actuator for controlling the upstream butterfly valve as a function of vacuum in the throat, and a second vacuum actuator for controlling pre-mix air supply to the fuel nozzle as a function of vacuum downstream from the downstream butterfly valve. A cold start control for disabling the second vacuum actuator for a predetermined period of time at starting to block flow of pre-mix air to the fuel nozzle, including a cold start valve with a thermal responsive bimetal and a resistance heater for timing of the cold start operation. A main fuel control valve with an idle bypass passage therethrough, and means for adjusting the rate of flow through the idle bypass passage.

Abstract: A carburetor which is responsive to an operator controlled throttle includes a fuel metering and dispersion system for optimally mixing a fuel with air in preparation for the injection into the intake manifold of an internal combustion engine. The carburetor includes a housing with an air-fuel mixing passageway extending vertically therethrough and a fuel dispersion bar transverse to the air-fuel mixing passageway with a plurality of fuel dispersion openings therein for injecting fuel into the air-fuel mixing passageway transverse to the flow of air. A fuel pressure controlled spool valve in the dispersion bar varies the amount by which the fuel dispersion openings are opened in response to the volume of fuel entering the dispersion bar. Venturi plates upstream of the fuel dispersion bar are pivotally attached for variably opening and closing the air-fuel passageway.

Abstract: A fuel/air metering system with an air throttle valve and fuel valve positively linked with the flow crossectional area of each valve proportional to the other. The air pressure drop across the air throttle valve is sensed and a corresponding fuel pressure drop is computed. A servo valve in series with the fuel valve is controlled so that the pressure drop across the fuel valve corresponds to this computed value.

Abstract: An improved carburetor having a mixing passage adapted for connection to an internal combustion engine, a pair of venturi plates pivotally mounted in the passage positioned in response to vacuum generated by the engine, a fuel spray bar extended across the passage, a primary fuel system for supplying a primary fuel to the bar automatically controlled in response to the positions of the plates, and an enrichment fuel system for supplying an enrichment fuel to the bar automatically controlled in response to the positions of the plates independently of the primary fuel system.

Abstract: A carburetor for an internal combustion engine includes a power boost device for boosting engine output during acceleration or at high speeds which adjusts its air-fuel ratio and/or boost timing according to the alcohol content of the fuel. The power device includes a nitrile rubber swelling member which swells in accordance with fuel alcohol content and which is used to adjust the fuel flow aperture of a power jet. In addition, a second swelling member can be used as a linkage between an intake manifold-vacuum-responsive piston and a metering valve to adjust the timing or threshold vacuum level at which the metering valve begins to operate.

Abstract: A system for recovering as power the pressure and sensible heat of the gas discharged from the top of a blast furnace by guiding the gas to a dry-type dust collector for the removal of dust while maintaining the gas at the furnace top pressure and introducing the gas into a turbine for expansion. To protect the dry-type dust collector when the gas is run off from the furnace at an abnormally high temperature, a gas channel extending from the furnace to the dust collector is provided with at least one injector, which injects a cooling fluid into the gas in response to a signal from a temperature detecting sensor disposed close to the gas outlet of the dust collector. The sensor which is positioned near the dust collector outlet detects the temperature without the time delay attributable to the deposition of dust. With use of the dry-type dust collector, the gas can be fed to the turbine almost without cooling for the recovery of an increased amount of power.

Abstract: A container of water is mounted on a motor vehicle and a pump means for dispensing that water into a passenger compartment of said vehicle is provided. The water will be delivered in the form of spray or vapor. An electrical circuit is formed with a humidity sensing device within the passenger compartment for purposes of actuating the vapor forming and dispensing apparatus.

Abstract: A fuel-air metering system functioning according to precise flow and geometrical equations. An air throttle valve and fuel valve are positively linked with the flow crossectional area of each valve proportional to that of the other. Fuel pressure drop across the fuel valve is regulated in precise proportion to the pressure drop across the upstream orifice of a two orifice in series air flow system which bypasses the air throttle. Careful shaping of the air throttle, the bypass system orifices, the fuel valve, passage geometry, and the servo valve fuel regulation system results in an accurate porportioning of fuel flow to air flow.

Abstract: A carburetor and valving therefor comprising a hollow tubular housing secured between top and base plates, said housing having outer and inner walls. A roller valve having a bore through the axis thereof and a radially extending pre-mixing chamber intersecting said bore is rotatably positioned within said housing by a pair of rods. The roller valve has a plurality of chordal ribs thereon, and spaces between said chordal ribs define air guides converging towards the opening of said pre-mixing chamber. One of said rods has a bore extending therethrough and opens into a larger bore at the inner end thereof. The circumference of the inner end of the rod has a rectangular cut-out therein, said cut-out having a flat wall through which a plurality of off-set orifices extend into the inner larger bore. The other of said rods has a reduced inner end portion having a chamber therein and a bore extending from the front face of the inner end extends into said chamber.

Abstract: A command signal drives a carburetor metering valve to provide the carburetor fuel flow which will establish a desired air-fuel ratio; simultaneously, the command signal drives a control unit which purges fuel vapor from a fuel vapor storage region. The control unit minimizes purge flow when either maximum fuel flow or minimum fuel flow is commanded and maximizes purge flow when an intermediate fuel flow is commanded; accordingly, fuel vapor is purged from the vapor storage region only when the purge flow cannot unduly enrich or unduly lean the mixture.

Abstract: A carburetor for combustion engines with a mixing chamber in the carburetor housing, the mixing chamber being bounded downstream by a randomly actuated mixture throttle and upstream by an air throttle controlling the intake air cross section and actuated by the pressure prevailing in the mixing chamber. A bypass air duct discharges into the center of the mixing chamber and receives the fuel supply. A nozzle pin cooperates with the air throttle and controls the cross section of a fuel jet. Downstream of this jet is another fuel jet whose cross section is controllable as a function of engine operating parameters by means of an analog magnet. The fuel jet controlled by the analog magnet may be the fuel outlet in the bypass air duct, and may be controlled by a nozzle pin through a lever via the analog magnet which is a plunger system. The second fuel jet may be located in a bypass air duct and its cross section may also be controlled by an analog magnet as a function of engine operating parameters.

Abstract: This invention discloses a carburetor comprising a gasoline conduit to the float housing and a main nozzle disposed in the fuel passage, the spray nozzle being arranged in the mixing chamber in the region of the air funnel of the intake pipe, wherein a float needle is provided for idling and a further float needle for operation, the two needles closing at different levels.

Abstract: In a two-barrel carburetor, a pair of plain tube mixture conduits each has a main well receiving fuel through a flow restriction which opens upwardly from the high point of a metered fuel plenum. The plenum receives fuel through a main jet controlled by a metering rod which is positioned by a vacuum responsive piston, through an auxiliary jet controlled by a metering rod which is positioned by an ambient pressure responsive bellows, and if desired through another auxiliary jet controlled by a manually adjustable metering rod.

Abstract: In a carburetor, an electromagnet energized according to a pulse width modulated duty cycle has a stationary pole member which drives a pair of magnetically responsive valves--one or both being permanently magnetic--to control fuel flow through a main metering orifice and air flow through an idle air bleed.

Abstract: A carburetor having a fuel bowl, main fuel metering system means and idle fuel metering system means is shown provided with a valve assembly actuatable into either an open or closed condition; in the open position additional fuel from the fuel bowl is bypassed around the main metering restriction as to flow into the main fuel metering system means downstream of such main metering restriction and in the closed position all fuel flowing into the main fuel metering system means flows through the main metering restriction.

Abstract: A piston type throttle valve carburetor which is provided with a pilot fuel feed system and more than one main fuel feed systems is disclosed. This carburetor smoothly responds to from light load to full load operation of the engine and can be manufactured without great working accuracy required.

Abstract: This invention relates to a vaporific carburetor for a gasoline engine, consisting of an evaporator tube assembly inclined to the horizon, an auxiliary fuel tank assembly at the upper end of the evaporator tube assembly, a mixer tube assembly at the lower portion of the evaporator tube assembly and an auxiliary water tank connected by a small water pipe to the upper portion of the evaporator tube assembly.The vaporific carburetor differs from the vaporizer carburetor in four different aspects. The first difference is in the cut at the outlet of the high speed tube, and the position of the cut with respect to the venturi. In the vaporizer carburetor the said cut is perpendicular to the wall of the venturi while in the vaporific carburetor the said cut is parallel with the wall of the venturi. The second difference is in the connection of the inlet of the idling speed tube.

Abstract: Disclosed is a variable venturi type carburetor comprising a movable suction piston. The suction piston has a needle entering into a stationary jet. The needle and the jet defines an annular opening through which the fuel is injected into the intake passage formed in the carburetor. The jet is connected to a fuel reservoir via a fuel supply passage. The fuel supply passage is connected to the atmosphere via an air bleed passage. A bubble generating pipe made of sintered metal is disposed in the fuel supply passage at a position in which the air bleed passage opens to the fuel supply passage for creating fine bubbles of air in the fuel.

Abstract: An air-fuel ratio control apparatus for use in a motor vehicle having an internal combustion engine provided with a carburetor including a main fuel supply system and a low speed fuel supply system for supplying fuel to the engine. The apparatus includes an electromagnetic valve for controlling the volume of air flowing through the air bleed of the main fuel supply system, an electromagnetic valve for controlling the volume of air flowing through the air bleed of the low speed fuel supply system, an O.sub.2 sensor for detecting the concentration of O.sub.2 in exhaust emissions, and a control circuit for producing as an output a control signal in accordance with a signal from the O.sub.2 sensor. The two electromagnetic valves are controlled by the same signal from the control circuit.

Abstract: A fuel spray bar is disposed in the induction passage of an internal combustion engine for spraying fuel into the induction air stream. The spray bar contains a pair of separate fuel distribution rails designated as the main (or light load) fuel distribution rail and the auxiliary (or power) fuel distribution rail. A plurality of spaced orifices communicate each rail with the induction passage. A pressure regulator assembly is disposed on the fuel spray bar and contains a main pressure relief valve assembly, the outlet of which is in communication with the main fuel distribution rail of the spray bar and an auxiliary pressure relief valve assembly, the outlet of which is in communication with the auxiliary rail. A motor driven control pump delivers fuel to the inlet of the pressure regulator assembly. At idle and light engine loading, only the main valve assembly is open so that fuel is sprayed into the induction air passage solely via the main fuel distribution rail and its orifices.

Abstract: A simplified, selectively actuatable deicing apparatus for evaporative water cooling towers is provided which permits selective delivery of hot water from the upper distribution basin to the outer margin of the tower for deicing of the fill structure and inlet louvers thereof in order to maintain adequate airflow through the tower during sub-freezing ambient conditions. The deicing apparatus includes a substantially continuous slot in the bottom of the distribution basin adjacent its outer margin, in combination with valving devices for directing the flow of hot water through any selected segment of the slot to the underlying outer margin of the tower. The hot water carrying flume which feeds the distribution basin has a normal water level spaced above the bottom of the basin and is in direct flow communication with the latter at an elevation corresponding to its bottom such that a substantial part of the tower water is available for delivery through the selected segment of the slot.

Abstract: A fuel mixture charge device for communication with the inlet of a combustion chamber including a conduit having inlet and outlet ends, the outlet end being adapted for connection in fluid communication with the combustion chamber and the inlet end communicating with ambient air, a one-way valve in the inlet end of the conduit for passing air only into the conduit, and resilient means operative to urge the valve closed and permit opening under internal pressure reduction for passing air to an engine according to its needs.