Abstract: A nozzle bar apparatus for applying a pattern of a viscous material upon a portion of a substrate where the apparatus is adjustable to vary the length, width and position of the pattern relative to the substrate including a nozzle member for selectively dispensing the material in a predetermined pattern and frequency including at least one material flow path through the nozzle member, the flow path having a first end forming an outlet facing the substrate for dispensing the material to the substrate and a second end in operable communication with a material supply for providing a flow of viscous material, the outlet having a predetermined range defining a width of the pattern, the nozzle member being activated for a selected period of time to control a length of the pattern and including a pattern control mechanism for selectively varying the width as well as the position of the pattern anywhere across the range of the outlet.

Abstract: In a gas burner assembly, the gas burners are equipped with a device constructed of a thermostatic, bimetallic material which autoregulates the amount of primary air that can be entrained into the burner such that the likelihood of an occurrence of lifting or flashback is substantially reduced, and elevated CO emissions at reduced firing rates are eliminated.

Abstract: A process and apparatus to guide spray material such as paints and lacquers to a plurality of spraying stations by a common ring line for spray material; in the process and apparatus, pressure, speed, volume flow and/or mass flow of the spray material flowing in the ring line are continuously monitored and adjusted to the respective requirements such that the spray material flowing in the ring line is conserved as such as possible. Thus, negative effects on the quality of the spray material are avoided even with long circulation times for the spray material.

Abstract: A painting apparatus selectively sprays a plurality of different color paints by a pair spray gun at a desired discharge rate. A thinner is discharged into a pipe communicating the spray gun so as to force out a selected color paint remainiung in the pipe for continuously spraying the color paint. A flow meter is disposed in the pipe to measure the color paint flowing therethrough so as to detect its flow rate. A thinner discharge rate at which the thinner is discharged, is controlled according to the flow rate so as to spray the color paint at a substantially constant rate before and after the discharge of the thinner into the pipe.

Abstract: A conditioning system for water based can sealing compounds comprising a pressure regulation means, such as a gravity fed supply tank adjacent a double diaphragm pump, a filter and a lining nozzle, an exit line from the nozzle connected to an upstream pressure regulator and a return line meeting the supply line between the pressure regulation means and the pump. Additionally, one or more dampeners may be added to the system as well as various pressure gauges and other sensors. The use of multiple lining nozzles on one conditioning system is also disclosed, with the nozzles being capable of independent control. The system without dampeners controls film weights to within +/-5% of the desired amount. The use of one or more dampeners improves film weight control to within +/-3% of the desired amount.

Abstract: A deicing system for applying a deicing mixture to an aircraft is provided. Water is enclosed in a first tank, and deicing fluid in a second tank. A first pump transfers water through a heater, to a heat exchanger located in the second tank. The deicing fluid is thereby heated to a desired operating temperature by the hot water flowing through the heat exchanger, with the flow of hot water controlled by a heater control device. The first pump and second pump transfer heated water and heated deicing fluid, respectively, to a mixing chamber. A mixing control means controls the respective flows to provide the desired mixture. The mixture of water and deicing fluid is then applied to the aircraft via a nozzle.

Abstract: A vehicle window washer in which the pump outlet pressure is varied in an inverse manner with temperature of the washer fluid so as to maintain a more consistent fluid deposit on the window as fluid viscosity changes with temperature. In particular, it uses a motor driven pump which provides a higher pump outlet pressure with the motor driven in a first direction than with the motor driven in the opposite direction and switches activation of the motor between the two directions based on sensed temperature of the fluid in the washer fluid reservoir.

Abstract: A stream of liquid is formed having a substantially smooth outer boundary surface contacting ambient atmosphere, and light is introduced into the steam closely adjacent the formation of the stream and in the direction of flow of the stream to be guided downstream by total internal reflection of light in the stream. Exit of light from the stream may be controlled by modifying the outer boundary surface of the stream or by introducing matter into the stream. The light is varied automatically in accordance with the temperature of the liquid in the stream to provide a visual perception of the temperature of the liquid.

Abstract: A windshield washing system for motor vehicles is described in which a non-return valve is installed into the feed pipe, which non-return valve, for ensuring a quick response from the washing system, prevents the feed pipe from emptying, while the pump is switched off. According to the invention a bypass switchable via a valve runs parallelly to this non-return valve, which bypass is opened in winter, i.e. in low outdoor temperatures, but is closed in summer. Consequently during winter mode of operation the feed pipe is emptied. Thus the washing liquid is prevented from freezing.

Abstract: An air control assembly for a fuel burner having a combustion chamber and a nozzle includes a control device which controls the amount of air that flows into the burner and an assembly dependent on fuel pressure which actuates the control device. A fuel inlet path is provided for communicating fuel to the nozzle and a fuel return path is provided for communicating excess fuel away from the nozzle. The assembly dependent on fuel pressure includes a piston and rod device adapted for reciprocation in a piston chamber. A nozzle block is provided in which the piston chamber is defined and the nozzle is supported.

Abstract: A feed device for automatically controlling the operation of a snow gun, the device having an axially displaceable slide to selectively feed air and water under pressure to the snow gun and bleed water from the device, the device incorporating a control system including a geared motor for moving the slide, a conversion module for operating the geared motor in accordance with the outputs of sensors positioned to determine outlet water pressure, temperature and humidity at the site of the snow gun, the conversion module being operatively connected to a central computer adapted to control the operation of a series of snow guns and feed devices located along a ski slope.

Abstract: A refractory flame-gunning apparatus has a feeder, a controller and a flame-gunning burner. The feeder has a refractory-powder feeding section, an inflammable-gas feeding section and a combustion-assisting-gas feeding section. The controller controls the supply of refractory powder, inflammable and combustion-assisting gases. The flame-gunning burner has a plurality of refractory powder and flame ejecting nozzles disposed at its tip. The flame-gunning burner has a gas mixer and a combustion-assisting-gas cutoff valve. The gas mixer has an inflammable-gas passage leading to the inflammable-gas feeding section, a combustion-assisting-gas passage leading to the combustion-assisting-gas feeding section, a gas mixing chamber communicating with the inflammable and combustion-assisting gas passages, and a mixed-gas passage the upstream side of which communicates with the gas mixing chamber and the downstream side of which communicates with the flame ejecting nozzles.

Abstract: In the case of a light duty oil burner designed for an hourly flow rate of less than 5 kg of oil, the oil burner having a nozzle head (3) associated with a heat exchanger (1), the nozzle head having an injection nozzle (7) mounted on a centrally positioned nozzle holder (8) and supplied with oil, and an outer combustion tube (4) placed around the holder of the injection nozzle (7) with the formation of a combustion air duct (5) connected with an air supply, it is possible to obtain a high overall efficiency and a good compatibility with the environment, while at the same time keeping to the basic concept of conventional light duty burners, by so designing the burner that the oil flow rate through the injection nozzle (7), that is in the form of a non-return spin or simplex nozzle with a constant nozzle cross section, and the air flow rate in keeping with the instantaneous oil flow rate, through the combustion air duct (5) may be controlled in keeping with the load, the air flow rate through the combustion air

Abstract: Automatic finish coating equipment employs a selectively variable low-pressure or "soft" air or solvent signal to control pushing of coating material through a feed tube from a coating material source to a coating material atomizing and dispensing device. This "soft fluid push" method maximizes the finish quality which can be achieved with coating materials having different characteristics, such as viscosities, in any operation in which frequent changes in coating material characteristics are experienced, such as, when frequent changes of coating material color are employed. The disclosure also describes that the "soft push" through the delivery lines should be reduced as the length of the slug of coating material in the delivery lines decreases.

Abstract: A pair of positive displacement pumps are connected in series between a liquid fuel supply tank and a burner nozzle. Mechanically linked, identical variable orifices are interposed within the supply line between the pumps and the nozzle. A first pressure regulator is connected across the supply line between the pumps and a return line leading from the nozzle back to the supply tank. A pressure sensing line for the first pressure regulator is connected to the supply line on the discharge side of the second positive displacement pump to regulate the outlet pressure of the first pump. The discharge line for one of the variable orifices leads to the burner nozzle and forms part of the supply line, while the discharge line for the other variable orifice bears a second pressure regulator and connects to the return line.

Abstract: In a snow-making installation the pipelines for carrying the pressurized water and compressed air are provided over the entire length thereof with branch conduits for delivering the air and water under controlled conditions to a mixing chamber wherein the air and water are mixed and delivered to the nozzles of snow-making equipment which is permanently installed. The air branch conduit is provided with a selectively actuated valve which is automatically actuated from the control station located down the mountain. A valve positioned in the water branch conduit is activated upon sensing the flow of air in the air branch conduit thereby allowing water to pass to the mixing chamber where it is mixed with the air.

Abstract: An improved apparatus is disclosed for controlling the flow of liquid fuel through a feed tube onto the convex exterior surface of an atomizer bulb of the Babbington type. Liquid fuel is directed into a deaeration chamber (50) having a suitable baffle for separating entrained air and dissipating dynamic flow effects. The inlet (64) of the feed tube for the atomizer bulb is positioned at the lower end (54) of the deaeration chamber so that as the chamber fills with liquid fuel, any air in the feed tube is quickly flushed. The upper end of the deaeration chamber is closed and provided with an inlet (56, 104) to a conduit (58). An adjustment (62; 72-88; 90-126) is provided to permit variation of the flow through the suction conduit and, hence, variation of the flow over the atomization bulb.

Abstract: Disclosed herein is a self-regulating hydrant which is characterized by a mechanism which automatically alters the flow of fluid through a valve seat in response to changes in ambient temperature. A temperature-responsive member, operatively coupled to a valve plug, is used to control the position of the plug relative to a valve seat. As the temperature of such member changes, its dimensions change. Such dimensional changes are preferably amplified and used to move the plug relative to the valve seat to control the rate of fluid flow through the valve seat.

Abstract: The scour jet array system includes a pump, both fresh water and surface er intakes, an automatic water mixing valve, a chemical buffer injector, a water heater, a series of scour jets with control valves, and a central control system.The control system senses the beginning of ebb tide for starting an initial scour jet, and as each jet scours the freshly deposited mud from the area, temperature, salinity and pH of the surface suction intake water are measured to determine the amount of fresh water injection, chemical buffer injection, water heating and duty cycle time in order to minimize the energy required to scour the sediments from the area.

Abstract: An improved apparatus is disclosed for controlling the flow of liquid fuel through a feed tube onto the convex exterior surface of an atomizer bulb of the Babington type. Liquid fuel is directed through an inlet conduit (44, 46) into a deaeration chamber (50) having a suitable baffle for separating entrained air and dissipating dynamic flow effects. The inlet (64) of the feed tube for the atomizer bulb is positioned at the lower end (54) of the deaeration chamber so that as the chamber fills with liquid fuel, any air in the feed tube is quickly flushed. Between the inlet conduit (44,46) and the inlet (64) to the feed tube, a filter plug (71) dampens flow pulsations in the liquid passing into the inlet (64). The upper end of the deaeration chamber is closed and provided with an inlet (56, 104) to a suction conduit (58). An adjustment (62,72-881; 90-126) is provided to permit variation of the flow through the suction conduit and, hence, variation of the flow over the atomization bulb.

Abstract: A shower fitting for a domestic installation comprises a shower head, which can be held in the hand, and which comprises inlet connections adapted to be connected by flexible conduit to supplies of hot and cold water. The shower head comprises a body, the interior of which is formed to provide a mixing chamber to which hot and cold water is delivered, and from which water flows to a spray outlet of the shower head. The temperature of the water flowing from the shower head is controlled by a thermostatic control member on the body, which includes means for positively shutting off the flow of water from the shower head.

Abstract: System for the supplying of water for the irrigation of plants is controlled by both solar radiance and ambient temperature so that water is supplied to the irrigated plants as a better function of their needs.

Abstract: Apparatus for aeroponic growth and development of a multiplicity of plants comprising at least one plant development unit including at least one perforate plant support member adapted to secure plants above the root portions thereof and thereby to directly expose substantially all of the root portions thereof to the atmosphere; spraying apparatus for providing a nutrient mist directly to the exposed root portions of the plants; and nutrient collection and recirculation means; and control means for determining the timing of mist provision.

Abstract: Light fuel oil of low viscosity is supplied to a pressure atomizing oil burner. A flow heater which is positioned upstream of the pressure atomizing nozzle, preheats the fuel oil to a temperature of approximately 150.degree. C. but not over the coking and cracking temperature of the fuel. With heat efficiencies up to approximately 25,000 kcal/hour density and viscosity are continuously decreased in the flow heater in order to reduce the thickness of the oil film leaving the atomizing nozzle and thus to decrease the flow rate.With heat efficiencies higher than approximately 25,000 kcal/hour density and viscosity are decreased before the ignition phase by preheating, in order to reduce the thickness of the oil film flowing out of the atomizing nozzle and thus to decrease the flow rate in the following ignition phase. After the ignition phase the preheating is reduced or stopped.

Abstract: This shower head serves to replace existing shower heads, and when the water becomes too hot for safety, it is so designed, that it will stop the hot water flow from striking the bather. It consists primarily of a fixed thermostat, which, when expanded, will cause a disc attached to a piston to be, by water pressure, urged against an opening, to cut off the water flow on the bather, and the hot water is then shut off at its source by the bather. The head further includes a lower passageway leading to a depressible relief valve, for releasing the hot water from the thermostat area, so as to enable the thermostat to reset.

Abstract: A dishwasher comprising a dishwashing tub, a liquid circulation pump, and an immersion heater disposed at a lower section of the dishwashing tub. The immersion heater is covered by a heater cover which includes a bottom free end and an upper free end. When the liquid circulation pump and the immersion heater are energized, warm liquid is circulated through the bottom free end of the heater cover. When only immersion heater is energized, the liquid disposed in the heater cover is heated up to generate the steam through the upper free end of the heater cover.

Abstract: Device for supplying at a constant rate a fluid utilizing apparatus with at least one fluid of variable viscosity, comprising a fluid source delivering said variable viscosity fluid, a first fluid circuit connecting said fluid source to the fluid utilizing apparatus, a second fluid circuit in which flows a constant viscosity fluid, two volumetric pumps mechanically coupled so that their flow rates are in a fixed relationship, a first one of the two pumps being inserted in the first fluid circuit, whereas the second pump is inserted in the second fluid circuit, and adjusting means inserted in the second fluid circuit, downstream of the second pump, for adjusting the flow rate of the constant viscosity fluid. The supply device is particularly suitable for supplying a spray gun with paint.

Abstract: A temperature-responsive valve for controlling the flow of fluid substantially without being affected by the pressure of or the turbulence generated by said fluid, comprises a housing having a chamber therein, an inlet port communicating with said outlet port communicating with said chamber, a temperature deflectable partition having an aperture and a tube. The tube extends from said inlet port past said aperture when the deflectable partition is in the position permitting a full flow of fluid. When the temperature of the fluid transmitted to said partition reaches a first predetermined value, the deflectable partition snaps to restrict with its surface the flow of fluid into said outlet port and remains in that position until the temperature of said fluid transmitted to said partition reaches a second predetermined value. The deflectable partition then snaps to permit the full flow of fluid into said outlet port.

Abstract: A plurality of spray nozzles are utilized to introduce a fluid into a vessel. Control valves are associated with each one of the plurality of spray nozzles. The control valves are either fully closed or fully open. The actual value of a process variable is compared to the desired value of the process variable to generate a difference signal. Control signals are generated in response to the difference signal. Different combinations of the control valves are opened in response to the control signals so as to provide a fluid flow rate which will maintain the actual value of the process variable substantially equal to the desired value. The on-off nature of the control valves provides a substantially maximum pressure drop across the spray nozzles when fluid is flowing through the spray nozzles.

Abstract: An on-off sprinkler head for fire extinguishing systems comprises a housing having a central cavity with an inlet aperture and a discharge orifice disposed at opposing ends thereof in an aligned orientation. A reciprocating valve having a valve head, a mating seat, and a stem is mounted axially in the central cavity, and controls the flow of fire extinguishing fluid therethrough. A temperature responsive, on-off drive motor is connected with the free end of the valve stem, and reciprocates the valve head with respect to the valve seat in response to selected temperature changes. The drive motor is mounted in the housing in a position axially offset from the aligned inlet aperture and discharge orifice, whereby during a discharge condition, the fire extinguishing fluid flows substantially unimpeded through the valve, and a solid, uninterrupted stream of fluid is emitted from the discharge orifice. The valve includes a deflector plate on which the fluid stream impinges and is dispersed into a spray.

Abstract: Odoriferous constituents are removed from relatively dry and/or warm gas streams by contacting the gas with a very finely divided aqueous spray containing a reagent reactive toward the odoriferous constituents of the gas. Droplet size of the aqueous spray is controlled as a function of temperature and relative humidity of the gas stream so as to prevent complete evaporation of liquid droplets and to achieve a maximum droplet size after evaporation of about ten microns.

Abstract: A control valve is placed between a water supply pipe and a delivery device such as a tub spout or a shower head. The control valve includes a cylinder open at the discharge end. The supply line is connected to the other end of the cylinder by a series of radial inlet ports. A slide closure in the cylinder moves to open and at least partially to close the inlet ports by a thermal sensor located upstream of the valve. The closure freely passes water on opposite sides so that the closure is balanced and unaffected by fluid pressure. Resetting of the control valve is quickly achieved as soon as safe conditions are sensed under reduced flow conditions.

Abstract: A thermally operated valve for automatic control of the rate of flow of a fluid coolant for hot gases produced by underground gasification of solid fuel deposits or by in situ combustion in oil wells, incorporating a temperature-sensitive element comprising a metal tube several meters long to be incorporated in a pipe for supplying coolant to the well, and a rod of a metal having a low coefficient of expansion coaxial with the pipe, the upper end of which rod is attached to the upper part of the metal tube and the lower end of which rod is flexibly connected to a valve member by a connecting element having adjustable clearance or play.

Abstract: A system for applying a foam insulation material which automatically compensates for changes in temperature and flow rates so that an optimum blending of materials can be maintained to provide for the production of high quality insulation.

Abstract: Periodically, the soil moisture sampler and controller automatically activates in-ground probe(s) to measure the soil moisture. The resulting output signal indicative of the soil moisture is adjusted for soil ambient temperature and compared to a pre-set soil moisture value. When the signal indicates that the soil moisture is less than a pre-set value, an irrigation timer is activated which causes the soil to be irrigated for a preselected time interval.

Abstract: An odor control device for use with an air passage of a main heating and/or air conditioning system having a blower. The device has a body with an air flow chamber therein, a panel secured to the body and having an air inlet port for admitting air into the chamber, a rotatable plate mounted on the panel, and a container for odor conditioning material mounted on the rotatable plate and preferably held thereon by a magnetic bar attached to the plate and attracting a perforated metal plate in the container, thereby permitting the container to be easily removed from the plate and attached thereto. The panel and plates have communicating arcuate inlet and outlet passages to permit the air to pass from the chamber in the body to the container and thence to the conduit of the main system.

Abstract: The shower head comprises a safety device connected between the water supply pipe and the shower nozzle and comprising a hollow housing having an entry end connectible to the water supply pipe, a valve seat provided in the housing in spaced relation to the entry end thereof, temperature responsive power mechanism located in the housing between the entry end thereof and the valve seat, and a valve member connected to the other end of the power mechanism for movement thereby upon an increase in temperature of the water flowing through the housing above a given operating temperature. The power mechanism is constructed and arranged to move the valve member toward the valve seat to close the same when the temperature of the water in the housing reaches the given operating temperature.

Abstract: An improved sprinkler for a fire protection sprinkler system in which the sprinkler opens to discharge water at one temperature and closes to stop the flow of water at a lower temperature. A pilot valve is actuated by a bimetal disc which also resiliently biases the pilot valve in a closed position. The bimetal disc has a snap action resulting in better control of the "on" and "off" temperatures of the sprinkler. A thermal delay for closing is obtained by the hysteresis which is designed into the bimetal disc.