Abstract: Water sprinkler apparatus to be used in combination with a welding or cutting torch to apply a cooling medium to the areas of an autobody upon which heat due to a welding operation or a cutting operation needs to be controlled to the autobody area either internal or external upon which repair work is performed.

Abstract: The invention relates to a container for flowable cleaner products, particularly for liquid thixotropic WC bowl cleaners of which the thixotropic properties cause the liquid WC bowl cleaner to adhere to vertical surface. It is the object of the invention to provide a container having a spray head which causes the flowable cleaner product, and particularly the afore-said WC bowl cleaner, to be distributed in an optimum manner and which at the same time can be sealed and closed in a child-proof manner. To this end, the container is equipped with a spray head which consists of a cylinder-like basic body and of a mandrel-like body having a plurality of spray orifices, with the geometry and the relative arrangement of the cylinder-like and mandrel-like bodies being such as to enable the required optimum distribution to be obtained, with a special design of the closure cap providing for child-proof sealing and a releasable engagement thereof with the spray head.

Abstract: Nozzle for a liquid applicator which may be employed to apply a liquid, especially a sprayable herbicide are provided. The nozzles comprise a body having a first end, second end, and relative central horizontal axis. The body defines a bore which extends from the first end to a bore wall which is proximate the second end. The second end defines at least three exit openings which are spaced adjacent from one another. Each exit opening extends from the bore wall out through the second end at an angle between about 30 degrees to about 40 degrees relative to the horizontal central axis. Each one of the exit openings intersects a corresponding deflection surface which are formed in the second end. The first end is adapted to mechanically couple with an spray applicator.

Abstract: A new tank container cooling system for preventing tank containers, especially bulk fuel storage containers, from overheating. The inventive device includes a main conduit fluidly connected to a fluid reservoir. At least one delivery conduit is in fluid communication with the main conduit to permit passage of fluid from the fluid reservoir to the delivery conduit. The delivery conduit is generally ring shaped and has a plurality of outflow nozzles. The delivery conduit is adapted for mounting on a storage container such that fluid passing out of the output nozzles flows on the storage container.

Abstract: A gas burner adapted to discharge said fuel at its the periphery for combustion, includes upper and lower concave plates secured together to define a chamber and an outer periphery having a plurality of burner ports. The upper plate preferably has a periphery extending radially at least as far as the lower plate. The periphery of the upper plate is downwardly angled, preferably more steeply than the periphery of the lower plate. The peripheral edge of at least one or the other of the top or bottom burner plates extends radially outwardly from the central axis a distance beyond the location of the burner ports and into the path of burning gases issuing from the ports whereby the temperature of said burning gases is reduced. Preferably, the periphery of the upper plate extends downwardly to an elevation below the upper edges of the burner ports, so that gases emerging from the ports are caused to impinge against the periphery, thus cooling the gases and thereby reducing the NO.sub.

Abstract: A hollow cylindrical cleaning tip installed in the free end of a whip hose assembly dislodges algae and particulate matter adhered pool surfaces and causes the hose to move along the bottom surface of a water filled pool in a sinuous whipping action to agitate the water and keep suspended particulate matter in suspension. The cleaning tip has a cylindrical side wall defining a central chamber, a tubular water inlet extending from a bottom end secured in the hose free end, a central orifice extending through a top end, and a plurality of circumferentially spaced orifices extending through the side wall. The central orifice discharges a pressurized jet stream of water axially from the cleaning tip in the direction of water flowing through the hose to create a reactant force causing the hose to move along the bottom surface of the pool in a sinuous whipping action to agitate the water and keep suspended particulate matter in suspension.

Abstract: An apparatus for disinfecting the interior surfaces of air conditioning ducts comprises a pressurized aerosol canister having a nozzle and an elongated flexible tubular extension coupled to the nozzle. The extension is closed on its free end and is provided along a portion of its length with an array of outlet ports or holes. When the nozzle is actuated, liquid disinfectant is delivered through the array of holes in the form of an aerosol spray or mist that issues in all directions from the tubular extension. In use, the end of the tubular extension is inserted into an air conditioning duct up to a visual indicator provided on the tube. The nozzle is then depressed, which causes an aerosol cloud to be expelled on the inside of the duct coating the interior surfaces of the duct and disinfecting against mold, mildew, and bacteria.

Abstract: A gas burner assembly has a sheet metal base section having a generally constant wall thickness and a sheet metal burner cap also having a generally constant wall thickness. The burner cap includes a plurality of burner ports and the burner cap is removably secured to the base section to define a gas chamber. The removability of the burner cap allows easy cleaning of the burner ports as well as the rest of the burner assembly. The base section is secured to the cook top by a twist lock arrangement which simplifies removal of the complete burner assembly without the need for tools when cleaning or maintenance is required.

Abstract: A valve for filling liquids into packages has a housing (1) with a supply connection piece (24), a forward mouth piece and an outlet device (16) in which a large number of outlet holes (4) is arranged. A closing member (3) is movably arranged in the housing (1), and can be engaged with a valve seat (23). Rear sealing devices (5, 7, 22) are also provided. In order to make possible a high volume flow of the liquid contents at low outlet speed without relative movement occurring between the package and outlet device (16) it is provided that the outlet holes (4) distributed over the whole cross-section of the mouth piece (2) are arranged in an outlet plate (16) which is configured integrally with the mouthpiece, and penetrate it in the direction (26) of the longitudinal axis (28) of the mouth piece, that the diameter and the width of the outlet holes (4) is larger than 1 mm and smaller than 5 mm, and that the length of the outlet holes (4) is greater than double their diameter and their width.

Abstract: A burner construction, a cooking apparatus utilizing the burner construction and methods of making the same are provided, the burner construction comprising a burner body having an open end and a removable cap closing the open end of the burner body, the burner body having an annular surface interrupted by a plurality of radially disposed and spaced apart grooves that are closed by the cap to define ports through which fuel can issue to burn externally to the burner construction, the annular surface of the burner body comprising an annular flange that extends radially outwardly from the one end of the burner body.

Abstract: A rotating fluid wide band applicator head which permits application of a relatively wide band of fluid without the necessity for translational motion of the head with respect to the object being coated. The applicator head includes a rotatable body having an axis of rotation and having a fluid delivery chamber disposed within the body. A plurality of bounded channels having open inner ends and open outer ends are provided. The open inner ends of the channels are in fluid communication with the fluid delivery chamber, to receive fluid therefrom and transport the fluid. The open outer ends of the channels are arranged to discharge the fluid in a desired pattern, resulting in deposition of a band of fluid having a desired width.

Abstract: An irrigation hose provides a long life expectancy. The irrigation hose is characterized in that a plurality of flow passages are defined by partitions dividing the inside of the hose which is made of thermoplastic resin; and that each flow passage is provided with irrigation holes formed in a member of the tube portion which is in contact with outside air, that is the outer wall thereof. The irrigation hose can provide different irrigation methods appropriate to the crops or growth stages with just one hose, without exchanging or laying multiple hoses with different irrigation methods. A film 16 is inserted between a film 12 which is made of long thermoplastic resin film with irrigation holes formed throughout at regular pitch and another film 12 which is also made of a long thermoplastic resin film with irrigation holes on both sides.

Abstract: A dispenser having a manually-operated dispensing valve assembly has a container for accommodating a spray product. The bottom of the container has a recess adapted to cooperate with a tube used to deliver air under pressure from an air pump into the container. The container includes a check valve which allows air to flow into the chamber of the container and prevent the flow of air out of the chamber of the container. When the container is placed on the air pump, it actuates a switch which energizes an electric motor which drives a pump for supplying air under pressure which is directed to the tube and into the chamber of the container past the check valve.

Abstract: A burner construction, a cooking apparatus utilizing the burner construction and methods of making the same are provided, the burner construction comprising a burner body having an open end and a removable cap closing the open end of the burner body, the burner body having an annular surface interrupted by a plurality of radially disposed and spaced apart grooves that are closed by the cap to define ports through which fuel can issue to burn externally to the burner construction, the annular surface of the burner body comprising an annular flange that extends radially outwardly from the one end of the burner body.

Abstract: A portable evaporative cooling unit (10) is disclosed. A housing (12) has a front opening (46) and a rear opening (20). Air-permeable water absorption media (22) are disposed across the rear opening (20) of the housing (12). An electric motor driven fan (42) having fan blades (44) is disposed in the front opening (46) of the housing (12) for drawing air through the water absorption media (22). A supply conduit (94) connects a water pump (52) to an elongated horizontal spray bar (64) disposed above the water absorption media (22). The spray bar (64) extends substantially the width of the water absorption media (22) and has a plurality of spaced holes (72) in its upper surface for distributing water. A foam sleeve (68) is disposed around the entire length of the spray bar (64). The foam sleeve (68) absorbs water expelled from the plurality of holes (72) and distributes the water onto the water absorption media (22).

Abstract: A toroidal manifold sparger having a hollow toroid member with an upper portion and a lower portion and having a plurality of first openings substantially evenly spaced along the lower portion thereof and all oriented perpendicular to the upper portion in a first and vertically downward direction, a plurality of second openings substantially evenly spaced along the lower portion of the toroid member and all oriented in a second direction, the first openings and the second openings being spaced apart from each other, each of the openings having a trajectory such that the trajectory of all of the first openings is parallel to each other and in a downward direction, and the second openings having a trajectory that radially inwardly converges in a downward direction, the first and second openings being the only openings in the lower portion, the toroid member being suspended from the upper portion.

Abstract: A compressed air safety gun for use underwater, having a handle and an elongate barrel extending therefrom, the handle including a valve therein being operable between open and closed position, by a trigger on the handle. A substantially flexible pneumatic hose connects at opposite ends between the handle and a pressurized air supply source for directing pressurized air flow to the valve in the handle, wherein operation of the trigger to open valve serves to direct the flow of pressurized air through the gun barrel and out from a distal end thereof. A coupling connectable to the distal end of the barrel is structured and disposed for attachment of various tools thereto, such as a nozzle for directing the flow of air from the barrel end.

Abstract: A painting gun having a ring-like gun main body with a circumferential opening formed in one peripheral portion thereof so as to allow for passage of an elongated workpiece as an object to be painted, and a plurality of nozzles radially disposed so as to eject a paint towards a central portion of the gun main body. The painting gun is moved in a longitudinal direction of the elongated workpiece after the elongated workpiece is placed in position inside the painting gun through the circumferential opening. Each of the nozzles atomizes the paint by atomizing air. An amount of the paint to be ejected from each of the nozzles is set to 35 cc/min or less, preferably 20 cc/min or less, per 1 kg/cm.sup.2 of an atomizing air pressure.

Abstract: New nozzles and methods for cleaning debris from drain pipes are disclosed. In one embodiment, the present nozzle comprises a nozzle body including a peripheral sidewall having a plurality of spaced apart peripheral through holes positioned to cause fluid from the interior space defined by the nozzle body to pass through the peripheral through holes in a direction substantially perpendicular to the longitudinal axis of the nozzle body. In addition, the nozzle body preferably includes a distal end wall having at least one longitudinal through hole positioned to cause fluid from the internal space to flow through the longitudinal through hole in a direction substantially parallel to the longitudinal axis of the nozzle body.

Abstract: A nozzle suitable for use with a device for removal of deposits from contaminated surfaces, such as a sootblower in a heat recovery boiler, is designed to avoid normal shock wave formation, and hence energy dissipation, by achieving a condition whereby, the emergent steam pressure (p.sub.e) is related to the ambient pressure (p.sub..infin.) by the relationship p.sub.e /p.sub.28 <about 2, preferably about 1. A compact design achieving this result and able to function over a wide range of flow rates comprises a cylindrical body with a downstream convergent outlet and a rounded-head conical insert located axially in the body with its maximum dimension generally coinciding with the commencement of convergence of the outlet and extending through the outlet.

Abstract: A device for the eradication of fire ants includes a reservoir for the introduction of liquid insecticide, a conduit that transports liquid insecticide from the reservoir to a dispersion manifold, and a pointed tip to facilitate pushing the device into the ground. The manifold has a main passage in fluid communication with the interior of the conduit and a plurality of lateral holes in communication with the main passage that lead to the exterior surface of the manifold. The exterior surface of the manifold has an annular channel where the holes emerge from the manifold to space the holes apart from the dirt of the wall of the bore hole formed as the device is pushed into the ground. This gap helps to keep the holes free of dirt and soil particles so the pesticide can flow freely from the device. The reservoir is sized to hold an effective amount of insecticide, approximately one quart or more.

Abstract: An apparatus and process for impinging a fluid upon an object to be treated. A generally conical shaped flow of fluid is directed from a body which has an opening at the base of the cone against an object to be treated, and located so that fluid impinging on the object reflects upwardly therefrom in the direction of the opening and has a lifting effect on filamentary material, such as hair, located on the object.

Abstract: A compressed air safety gun for use underwater, having a handle and an elongate barrel extending therefrom, the handle including a valve therein being operable between open and closed position, by a trigger on the handle. A substantially flexible pneumatic hose connects at opposite ends between the handle and a pressurized air supply source for directing pressurized air flow to the valve in the handle, wherein operation of the trigger to open valve serves to direct the flow of pressurized air through the gun barrel and out from a distal end thereof. A coupling connectable to the distal end of the barrel is structured and disposed for attachment of various tools thereto, such as a nozzle for directing the flow of air from the barrel end.

Abstract: A one-piece molded water chamber in the form of an annulus having a large open segment which permits the chamber to serve as a yoke which can be positioned on the ground surrounding the trunk of small trees at the base of the trunk. The water chamber is made of a strong, semi-rigid material so that the segmental opening can be spread apart to permit it to fit around a tree trunk which may be somewhat larger in diameter than the size of the open segment. The chamber is continuously fed with water from a standard garden hose. The wall of the chamber is pierced with a single row of water orifices which are distributed along a line around the upper, outer diameter of the annular body. This arrangement permits the watering of a tree outward, around the drip-line beneath the tree's outer foliage. In addition, this arrangement also prevents introducing water into the soil around the region immediately surrounding the tree trunk.

Abstract: A gas boiler having a boiler unit constructed by interconnected boiler sections each having an internal waterway bounded by one or more heat transfer surfaces. Baffles on the boiler sections define serpentine flue passages, and the baffles include bypass openings formed by notches and/or slits to suppress standing waves and associated noise. A burner includes a conical burner element having burner ports arranged in clusters to enhance the flame distribution and stability. A distributor cone nested within the burner element provides a pressure drop for noise suppression. The blower shaft is equipped with a magnetic plastic washer which effects a seal against air infiltration while allowing the blower shaft to shift from side to side.

Abstract: A dust collector blow tube having a blow tube (22) being open at a first end (32) and closed at a second end (36), the first end being reasonably and sealingly received over a supply pipe (12); the second end (36) being acted up by pressure means to place pressure on the second end (36) to force the first end (32) over the supply pipe (12); the pressure means is a cylinder (42) mounted about a vertical shaft (44) parallel to but spaced from the longitudinal axis of the cylinder (42) so as to provide a cam effect, rotation of the cylinder (42) about the vertical shaft (44) providing the necessary pressure.

Abstract: Gas burner, particularly for household appliances, comprising a burner body (1) having a peripheral side wall (5) defining an enclosure with an outward opening and at least one air-gas mixture supply orifice (13), which enclosure is adapted to contain a "soft" flame able to withstand sudden pressure variations of the primary air brought to the burner and to re-activate the flames of the burner should they be blown out, characterized in that it further comprises at least one chamber (15) situated behind the supply orifice (13) of said enclosure (11) and itself having a gas mixture supply orifice (16) with a cross section substantially equal to or greater than that of the supply orifice (13) of the enclosure, this chamber being configured so that the air-gas mixture which is contained therein forms a buffer cancelling out or attenuating the sudden pressure variations of the primary air admitted into the burner and so that the flame of the enclosure is maintained.

Abstract: A burner construction and method of making the same are provided, the burner construction comprising a burner body having a chamber therein and having opposed ends one of which is open to the chamber and the other of which has structure for interconnecting a source of fuel to the chamber, and a removable cap closing the one end of the body, the burner construction having ports interconnecting the chamber to the exterior of the burner construction and through which the fuel can issue to burn externally to the burner construction, the burner construction comprising a removable venturi section disposed in the chamber and being removable therefrom through the open end of the body when the cap has been removed therefrom.

Abstract: A liquid dispensing system for example for paints comprises a liquid reservoir, a circulating path for the liquid to and from the reservoir, a pump for causing a pressurized flow around the path, a three-way valve in the path which is controllable to divert liquid from the path via a second valve to a dispensing nozzle. The second valve is biased to a closed position and is openable by the hydraulic pressure of the diverted liquid to permit the diverted liquid to flow to the nozzle. In a multiple liquid dispensing system, e.g. a paint blending system, each liquid has its own dispensing system as described above and the plurality of second valves thus provided are disposed in a conical formation with the nozzles directed towards the apex of the cone.

Abstract: A nozzle (10) with lateral slots (16, 17 and 18) for discharging a high pressure liquid for treating a work material (30) is described. The nozzle has a constriction orifice (15) between an enlarged or main orifice (13) and restriction orifice (14) leading to the slots which increases the velocity of the liquid issuing from the slots. The nozzle is particularly adapted for deburring transmission fluid channels in transmission main control valve bodies.

Abstract: An apparatus for enhancing traction for two drive wheels of a self-propelled vehicle, wherein the kit includes a reservoir coupled to a primary conduit through selective actuation of a solenoid valve. The primary conduit is in fluid communication with a secondary conduit, wherein the secondary conduit includes a spray head positioned adjacent each drive wheel of the vehicle. The spray head includes an apertured semi-spherical spray head to disperse fluid to and adjacent the drive wheels to effect melting of snow and ice thereabout. The kit further includes a dispersion brush selectively securable about the nozzle to minimize dirt and debris intrusion into the spray head, and further includes elastomeric cap member to overlie the spray head and enclose the same during periods of non-use.

Abstract: A burner construction and method of making the same are provided, the burner construction comprising a burner body having a chamber therein and having opposed ends one of which is open to the chamber and the other of which has structure for interconnecting a source of fuel to the chamber, and a removable cap closing the one end of the body, the burner construction having ports interconnecting the chamber to the exterior of the burner construction and through which the fuel can issue to burn externally to the burner construction, the burner construction comprising a removable venturi section disposed in the chamber and being removable therefrom through the open end of the body when the cap has been removed therefrom.

Abstract: A more efficient cooling of a blow molded thermoplastic article can be achieved by directing sprays of cooling medium against those specific zones of the wall of the article which require a more rapid cooling while avoiding directing the sprays at areas requiring a less rapid cooling. This cooling procedure is achieved using a spray head having a plurality of individual spray nozzles which direct sprays specifically against the areas requiring more rapid cooling.

Abstract: A burner construction and method of making the same are provided, the burner construction comprising a burner body having a chamber therein and having opposed ends one of which is open to the chamber and the other of which has structure for interconnecting a source of fuel to the chamber, and a removable cap closing the one end of the body, the burner construction having ports interconnecting the chamber to the exterior of the burner construction and through which the fuel can issue to burn externally to the burner construction, the burner construction comprising a removable venturi section disposed in the chamber and being removable therefrom through the open end of the body when the cap has been removed therefrom.

Abstract: A flatwork ironer for the ironing of sheets, including a housing, having a series of troughs, and a roll associated with each, spray device in proximity with each roll, for the timed spraying of lubricating wax thereon, the spray includes a spray conduit, for conveyance of wax under pressure from a reservoir for dispensing through spray nozzles onto each roll for the time needed, and then providing a return line for draining any excess wax back to the reservoir; the controls for automatic spraying of lubricating wax onto the roll(s) includes a pump, a motor, a computer program including a timer, various solenoids, cams, for furnishing the controlled de-energization of the flatwork feed table and vacuum motors, and the initiation of a lubricating cycle, to achieve its functioning, with a reinitiation of the ironer mechanisms for further operation, with the automatic resetting through circuitry of the timer in preparation for the next lubricating cycle.

Abstract: A spray nozzle which comprises a generally solid body having substantially parallel opposed faces and a circumferential edge, at least a portion of the circumferential edge describing an arcuate face;a major-sized borehole extending normally into the circumferential edge from a direction opposite the arcuate face and substantially transversely through the solid body;a plurality of angularly arrayed minor-sized boreholes intersecting the major-sized borehole and extending through the arcuate-faced edge of the solid body, the minor-sized boreholes each having an axis intersecting substantially perpendicular to a borehole face of the major-size borehole closest to the arcuate-faced edge;a spray outlet tube mounted in each of the minor-sized boreholes; andmeans for coupling the major-sized borehole to a source of liquid pest control composition under operable pressure for spraying.

Abstract: The gas burner comprises a mixer, a conical transition member adjacent thereto on which a cylindrical burner shell with openings and whose top is closed by a burner lid is mounted. Clamped between the burner lid and the transition member is a throttling cylinder which is filled by the super-stoichiometric gas mixture at super-atmospheric pressure. In order to avoid burner pulsations the cylinder has throttling openings whose total area is 2 to 10% of the total area of the openings. The throttling openings are in a plurality of circular rows above one another in such a manner that they are on a respective vertical line. Vertical, imperforate sections of the burner shell are opposed to the lines so that the mixture jets from the throttling openings do not impinge directly on the openings. The cylinder is provided at a coaxial spacing of 5 mm from the burner shell.

Abstract: An extra flat type gas burner assembly is provided, comprising an annular venturi (17), a tubular member (11) fast with the burner body (1) extending vertically thereunder to cover the injector (5) and position the latter coaxially at the intake (15) of the gas-air mixture in the burner body, whereas the injector (5) is supported freely by a structural element (18).

Abstract: A gas burner for a water heater and comprising a base having central passage. Gas fuel is supplied to one end of the passage and an orifice is removably connected to the other end of the passage. An inverted cup-shaped head has an inner end threaded to the base and defines a closed chamber disposed in communication with the orifice. A plurality of ports are formed in the head and provide communication between the chamber and the exterior of the burner. The ports have a greater axial length than diameter and aid in controlling the flame configuration.

Abstract: A dual stream thin edge orifice disk is defined as a disk having a pair of orifices positioned to direct the flow of fluid from the interior portion of a valve into two different streams. The dual streams may be parallel or typically diverge at an angle for directing the stream to two adjacent engine valves in the situation wherein the valve is an electromagnetic fuel injector for an internal combustion engine. To have the dual stream flow in a direction that is not parallel, the area of the disk surrounding the dual orifices is embossed and the orifices are positioned along the sides of the embossment between the base and the apex thereof. The manufacturing of the accurately sized orifices in the disk is accomplished by means of a progressive die. One of the stations of the die provides a coining operation on the orifice. Such coining operation is adjustable by means of a micrometer adjustment.

Abstract: An improved shower head comprising a length of hollow tubing in the shape of a vertically disposed loop having spaced apart, vertically supported side sections and a horizontally supported bottom section joining respective lower ends of the side sections in which a preferred embodiment of the loop is annular in shape to include a horizontally supported top portion joining respective upper ends of the side sections, the outer wall portions of the tubing forming the outer face of the loop facing the bather containing spaced apart orifices producing a vertically disposed spray pattern. The orifices are located along the tubing wall region of the interior portion of the loop outer face an offset distance from the center line of the outer tubing wall that forms the face of the loop generating a spray pattern having an inwardly directed component around the periphery of the loop or annulus.

Abstract: A dual stream thin edge orifice disk is defined as a disk having a pair of orifices positioned to direct the flow of fluid from the interior portion of a valve into two different streams. The dual streams may be parallel or typically diverge at an angle for directing the stream to two adjacent engine valves in the situation wherein the valve is an electromagnetic fuel injector for an internal combustion engine. To have the dual streams flow in a direction that is not parallel, the area of the disk surrounding the dual orifices is embossed and the orifices are positioned along the sides of the embossment between the base and the apex thereof. The manufacturing of the accurately sized orifices in the disk is accomplished by means of a progressive die. One of the stations of the die provides a coining operation on the orifice. Such coining operation is adjustable by means of a micrometer adjustment.

Abstract: An apparatus for injecting quench gas (cooled syngas) through an injection ring located around the circumference of the gasifier exit duct and having ports in communication with the interior of said duct to achieve thorough mixing of the gasifier gas with the injected quench gas. Interchangeable rings having different configurations and dimensions of the ports may be used to accomodate various types of coal. The rings may be fabricated in sections for ease of maintenance and replacement.

Abstract: A cleaning device for paint brushes and rollers which employs a scrubbing action for lifting and separating bristles or mat for optimal cleaning and which allows the progress of the cleaning process to be continuously and conveniently monitored. The device comprises an annular spray ring having an exterior radially directed flange and a plurality of spray ports on the inside surface of the ring. The ports are aimed so that the individual water streams converge at a point exterior to the plane of the ring.

Abstract: A fire-fighting tool having a perforated pointed forward end is designed to automatically maintain its water-emitting portions in place within the interior of a burning building, without manual attention thereto, after the wall or roof of such a building have been pierced with same. Rearwardly directed ports are carefully arranged so as to produce non-intersecting streams of water. These ports emit water under high pressure when the pointed heavy tool is attached to a fire hose and serve to extinguish the fire at the inner surface of the outside wall, and at the same time prevent the tool from being ejected rearwardly, which would be the normal result of the passage of water under high pressure from the fire hose through such a tool.

Abstract: There is disclosed a gas-fired water heater/boiler apparatus with a unique burner assembly that provides high levels of BTU/hour input making it suitable for commercial installations. The gas burner includes a pair of superimposed tubes, each having evenly distributed perforations of a different uniform size, that are rolled flush together and provide a thick walled burner with greatly increased strength and resistance to premature failure while furnishing an optimum flame pattern. The gas burner projects into the interior of a vertical, cylindrical array of finned heat exhanger tubes through which the fluid to be heated is circulated. The water heater/boiler apparatus is compact and thermally insulated by a pressurized forehearth and may be installed on combustible floors or in closets with zero clearance.

Abstract: An air supply nozzle for a fluid bed furnace comprises a tubular member attachable to a plate, forming the bottom of the furnace. The tubular member is upwardly closed by a lid and just below the same a number of air dispersing openings are provided. A wear-resisting ring of hard metal is attached to the upper end of the tubular member and has a thickness and a height noticeably exceeding the wall thickness of the tubular member. The void within the ring is filled with refractory concrete so a dome projecting above the ring is formed. The tubular member includes a un-perforated portion, which has such an extension that the tubular member, after a hard wear, may be cut, a lower stub of the tubular member remaining at the plate, while the top is substituted by a new portion. The two portions of the reconditioned tubular member are then connected by an internal supporting sleeve and tack welding.

Abstract: An irrigation apparatus for controlled watering of large plants, such as trees, shrubs and the like includes a hose connection for connecting to a garden hose or the like, a control valve for adjusting the flow of water through the apparatus, a manifold connected at one end thereof to the valve and also being flow connected to a pair of tubular arms and a pair of weights attached to the tubular arms at distal ends thereof. The tubular arms are flexible and adapted to wrap around the base of a tree or the like and are held in place against thermal expansion or water pressure acting within the tubular arms by the weighted ends. The tubular arms also have a plurality of spaced apertures along upper sides thereof. The valve has two flow apertures, one of which provides fixed relatively low flow and the other which is adjustable to provide for variation in water flow.

Abstract: A blowing nozzle for a highly pressurized gaseous fluid comprising at least two narrow slot-form exhaust passages (12) having a width (d) insignificantly larger than the size of polluting particles occurring in said fluid and a length (L) no more than ten times the average width (d) of each slot, the exhaust passages extending in parallel or radially over the end surface of the nozzle in a projection perpendicular to its longitudinal axis.

Abstract: The present invention relates to a device designed to be detachably attached to the undercarriage of a lawn mower through the use of hooks engageable with the blades of the lawn mower. The device includes an annulus having a plurality of holes therethrough with a coupling designed to be connectable to a water supply hose. Additionally, a pair of diametrically opposed sharpening stones are rotatably mounted on the device and are automatically rotated through the provision of paddlewheels, each of which is rotated through the provision of water sprayed thereon as supply from two supply conduits. When the hose connection is connected to a hose supplying water to the device and the water begins to flow, water sprays out the openings in the annulus to clean the undercarriage of the lawn mower while water spraying out the supply conduits impinges on the paddlewheels causing the grinding stones to rotate to thereby sharpen the lawn mower blades.