Abstract: The invention relates to a projectile comprising a shell body containing an explosive charge and a ballistic nose cone in which a trigger system is disposed. The ballistic nose cone is organized as two distinct parts which are connected together in axial alignment, comprising a bottom portion that is essentially rigid and a top portion that is essentially deformable on impact on a target. Each of the portions is charged with a compressed incendiary composition, and together they form a closed functional cavity whose shape is maintained on firing and during the trajectory of the projectile. The bottom portion also receives a layer of mechanically strong pyrophoric material, said material being set off by the charge in the ballistic nose cone which is itself set off on impact by the sudden increase in the pressure of the air contained in the closed functional cavity.

Abstract: An extractable, reusable, two piece, plactic cartridge, housing a compression nozzle, chamber and pusher disc, having at one end of cartridge an opening to receive a compressionable, halved, hollow point projectile sleeve which contains a soft, compressionable, liquid marking projectile. A solid pusher disc located inside the cartridge, is secured to the interior wall of the cartridge by an elastic tube. The disc having a flat forward side which makes complete surface area contact with projectile sleeve. The aft side of disc being concaved is seated forward of a thrust port, smaller in diameter than the concaved section of disc. The thrust port is the smaller opening of two openings of a conical shaped compression nozzle, which has four equally spaced channels extending from the thrust port longitudinal to the larger opening which joins a circumferencially identical, partially closed end propellant chamber. The chamber, channels and compression nozzle contain the propellant charge.

Abstract: An increased volume shotshell having a biaxially oriented plastic tubular body has an end closure disk heat sealed to the open end of the shotshell eliminating the conventional star crimp closure. The increases volume results from making available the space normally taken up by the internal folds of the crimp. The end closure on the open end of the shotshell tube is fused to the tubular body to seal the shot load without destroying the biaxial orientation of the open end of the tubular body.

Abstract: A pipe crawler for moving through a pipe in inchworm fashion having front and rear leg assemblies separated by air cylinders to increase and decrease the spacing between assemblies. Each leg of the four legs of an assembly is moved between a wall-engaging, extended position and a retracted position by a separate air cylinder. The air cylinders of the leg assemblies are preferably arranged in pairs of oppositely directed cylinders with no pair lying in the same axial plane as another pair. Therefore, the cylinders can be as long a leg assembly is wide and the crawler can crawl through sections of pipes where the diameter is twice that of other sections. The crawler carries a valving system, a manifold to distribute air supplied by a single umbilical air hose to the various air cylinders in a sequence controlled electrically by a controller.

Abstract: An overhead cableway is disclosed, in particular a chair lift, with a cable revolving between stations and with transport devices having a traveling gear and connected with the cable via removable clamps. Travel segments are provided at every station which include driven friction wheels, which act on the transport devices via friction surfaces provided on their traveling gear, and forming at least one deceleration and one acceleration section each, and with guide elements associated with the travel segments, which cooperate with the traveling gear. In accordance with the invention, the friction wheels (6,10) define traveling surfaces (20) and the transport devices (50) are supported by their downwardly oriented friction surfaces (88) directly on the friction wheels, and the guide elements (48) are seated rotatably and fixed in place.

Abstract: A packing pallet which provides increased buckle resistance for a given amount of cushioning material. In particular, an inventive packing pallet utilizes a stringer as a bottom support for cushions and a top deck board which is bolted, through the cushions, to the stringer.

Abstract: A flip top table includes a table surface which is hingedly connected to a pedestal leg so that the table surface may be pivoted between a generally vertical storage position and a generally horizontal use position. The hinge which connects the table surface to the pedestal leg includes a lock mechanism which holds the table surface down when in its horizontal and usable position, a release which releases the lock and a latch or arm which will prevent the table surface from falling when it is in its vertical storage position.

Abstract: A desk and spaced panels at the edge of the desk forming a half-wall are combined to make the space within the wall available for the storage of wires and equipment associated with devices in use on or adjacent the desk. The half-wall extends above the desk top, and has a slot traversed by the wires leading out to the devices. Brackets that also traverse the slot can be used to support the devices well above the desk surface. The inner panels forming the half-wall are adapted to support shelves under the desk. The brackets also can be mounted in a desk wherein the spaced panels at the surface of the desk, with the slot being formed in a horizontal surface in the desk. The brackets have adjustable support feet and can have cylindrical accessory supports.

Abstract: A method and apparatus for remedial treatment of soil with volatile contaminants includes a rotating drum having a firebox projecting a flame into the discharge end of the drum. An inlet conveyor enters soil which tumbles through the drum atmosphere which is recycled through the firebox and drum for contaminant incineration in the drum. The recycled atmosphere moves in a circular path about the outer edge of the furner flame to form an annular flame projecting into the drum. A part of the drum recycled atmosphere processed through a final burn box to destroy remaining contaminants, and a cooler for cooling the atmosphere. A separator connected to the cooler separates solids and moisture to discharge a contaminant free atmosphere. The temperature of the discharged soil and the recycled atmosphere from the drum as well as the final processed atmosphere is monitored for controlling the system operation. The several mechanical and electrical components are monitored to provide selected system control.

Abstract: This invention is directed to a method and apparatus for improving fluid flow and gas mixing in boilers. More particularly, this invention pertains to a method and apparatus for improved fluid flow and gas mixing in kraft recovery boilers for increased energy efficiency, reduced TRS emissions and increased capacity. The method of introducing air into a boiler furnace comprises: (a) introducing air through at least one opening located on at least a first wall of the interior of the furnace; and (b) introducing air through at least one second opening located on a second wall of the interior of the furnace opposed to the first wall at the same, or different, elevations.

Abstract: A transplanting apparatus for transplanting plants from free draining matrix trays in which each plant containing cell of each matrix tray is provided with a drainage hole at the bottom of a cell. The transplanting apparatus has a matrix tray rotary supply device, an expulsion/indexing device, a plant catching device, and a planter device. The matrix tray rotary supply device vertically holds and supplies matrix trays to the expulsion/indexing device, and rotates to supply a new matrix tray. The explusion/indexing device moves a supply matrix tray in a row by row movement and expulses one row of plants after the other. The plant catching device catches the expulsed plants and aligns the expulsed plants root end down, and the planter device plants the expulsed aligned plants.

Abstract: A submarine is provided with a large number of individual fins, some of which are arranged to create a "slot" effect between them. The fins are controlled in a way which is dependent on which of them may be in service at a particular time so that manoeuvreability is substantially unaffected by damage to a limited number of them.

Abstract: The present invention is directed to a clear view hard curtain which is comprised of a plurality of separable frames, each frame including at least one semi-rigid clear, flat panel, and a flexible frame surrounding the panel. Each of a plurality of frames may be attachable to a vehicle to thereby form an enclosure protecting the interior of the vehicle from external natural elements. Finally, the enclosure may be maintained during operation of the vehicle with the flexible framing member absorbing shock to the semi-rigid panels which may be caused by the movement of the vehicle. Preferably, the clear view hard curtain may be utilized as a protective enclosure for the bridge of a boat.

Abstract: This invention is a two-color unitary application and vacuuming head for a liquid toner electrostatic printing system. There is a body having three planar faces angularly displaced from one another concentrically about a pivot point, one of the faces being a first toner face having openings therein communicating with a first network of toner passages in the body, a second of the faces being a second toner face having openings therein communicating with a second network of toner passages in the body, a third of the faces being a vacuum face also having individual openings therein communicating respectively with a third network of toner passages in the body and with a fourth network of toner passages in the body.

Abstract: A loading lock for a chemical vapor deposition apparatus comprises three chambers: an outer chamber for introduction and removal of substrates, a reaction chamber for forming thin films on the surfaces of the substrates and an intermediate chamber disposed between the outer chamber and the reaction chamber. The intermediate chamber keeps the reaction chamber in an air-tight state isolated from the atmosphere side at all times. As much of the mechanism for internal conveyance of the substrates as possible is located externally. This arrangement prevents oxidization of the substrate surfaces by air entering the apparatus during introduction and removal of the substrates. It also prevents generation inside the chambers of metallic contaminants, particles and the like which might adhere to the substrate surfaces.

Abstract: A process for applying an adherent electrically insulative moisture-resistant composite coating to a substrate. A thin, adherent, highly cross-linked, substantially liquid moisture-impervious primer coating is provided on the substrate by glow discharge polymerization of a low molecular weight hydrocarbon monomer in a low pressure chamber containing the substrate, the monomer being selected from among methane, ethane, propane, ethylene, and propylene. A second polymeric coating layer is provided over the primer coating by glow discharge polymerization of a second precursor comprising a hydrocarbon or substituted hydrocarbon. The precurser exhibits a hydrogen yield of not greater than about 0.75 hydrogen atoms per molecule under the glow discharge polymerization conditions under which the second layer is deposited, whereby the second polymeric coating layer is substantially resilient and strongly bonded to the primer coating and the second layer comprises a high concentration of surface and bulk free radicals.

Abstract: An aluminium vacuum deposition machine for coating parts of lead frames, having a vacuum chamber containing the lead frames and aluminium to be vaporized. To reduce the incidence of imperfections in the aluminium coatings, a meissner trap is positioned within the vacuum chamber itself rather than or in addition to a meissner trap adjacent to a diffusion pump. Also, to reduce the thermal mass within the chamber, a support jig for the lead frames comprises a pair of end rings and a bracer member joining the end rings and holding them apart. Two pairs of spaced rollers are arranged in the chamber so that each ring rests on a respective pair of rollers, and the rollers are driven so that the support jig is rotated during vacuum deposition.

Abstract: This invention is a system for raising land and aquatic, plant and animal crops in a symbiotic-type polyculture using organic/sustainable methods of agronomy, animal husbandry, aquaculture, and hydroponics whereby yields are optimized while reducing production costs, conserving resources, and protecting the environment. Year-round production is also achieved by providing a canopy means along with additional environmental control and supplemental systems that increase yields in temperature zones normally having ambient temperature fluctuations too great to sustain production for more than a few months per year. Any number of cropping combinations are possible, but as an example, this system would establish a beneficial symbiotic-type production link between poultry, microalgae, fish and aquatic animals that consume algae, and vegetables or other land crops.

Abstract: A fabricated structure is used with an aquarium tank partially filled with water to provide an aquatic reptile or amphibian with a balanced environment consisting of dry land, shallow water and an area of relatively deep water. The structure consists of a substantially horizontal platform provided with leg members that extend outwardly and downwardly, serving to elevate the platform above the water and isolate it from the inside vertical walls of the aquarium. The area beneath the platform remains available to the animal for swimming purposes and water is allowed to freely circulate to insure proper filtration. In a preferred embodiment, one of the legs is modified to form a ramp leading up to the platform to facilitate access by the animal occupants. By limiting support of the platform to three members including the ramp member, the stability of the structure is assured when placed on even the most uneven bottom surface.

Abstract: A collapsible doghouse, to be used indoors or outdoors, to provide a comfortable and easy to clean place for a dog to rest or seek shade. The doghouse includes elongate side walls, a pair of distal walls, one of which includes an arched entranceway and another of which includes a cutout drainage slot, a roof portion, and a weightable base portion, all of which are securely, yet easily removably connected, and are formed of a substantially solid, yet flexible, water repellant plastic which will facilitate easy cleaning and drainage, and lightweight transportation.

Abstract: In one embodiment of a wireless method of animal control, using animal borne wireless receivers and warning devices, the animal is warned to remain within a lobe of the transmitter station. The lobe is readily moved to facilitate herding and rotational grazing. In another embodiment, the animal is warned not to cross a line (electronic fence) defined between a pair of overlapping lobes of the transmitter station. A third overlapping lobe of radiation provides an electronic gate in the electronic fence by disabling the animal warning device within the localized region of the third lobe. Alternately energizing the pair of overlapping lobes facilitates detection of the electronic fence.

Abstract: An animal litter box liner of flexible, sheet-like material is provided with holes of an appropriate size and location for allowing clean, dry litter to sift therethrough while simultaneously retaining clumps of urine-soiled litter and feces within the liner as it is lifted from a litter pan.

Abstract: Apparatus is provided for use in association with an internal combustion engine to generate heated moist air which is directed into the intake manifold or carburetor of the engine. The apparatus employs a water-holding vessel equipped with coils for the circulation of hot lubricant and coolant fluids from the engine. Air is sucked into the vessel by virtue of the vacuum of the intake manifold. The air is then broken into a bubbled stream by passage through an apertured horizontally disposed sparger tube.

Abstract: In order to cool an engine effectively, an engine oil temperature is detected by an oil temperature sensor. When the engine oil temperature is above a predetermined valve, the cooling fluid being introduced into the engine is divided into two streams. One stream is introduced into a cylinder head and the other stream is introduced into a cylinder block. The amount of cooling fluid being introduced into the cylinder block is controlled according to the engine oil temperature.

Abstract: A number of embodiments of air cooled compact power supplies having air inlet and air outlet openings in the lower portion of the housing of the power supply. The interior of the power supply is baffled so that the air flowing through it must follow a serpentine path to prevent air entrained foreign materials from impinging upon the engine.

Abstract: A fuel injection type internal combustion engine has a pair of intake ports provided in a cylinder head to connect a pair of intake valve bores facing a combustion chamber with a single intake inlet end. A fuel injection valve is disposed in an orientation frm the intake inlet end toward both the intake valve bores and includes an assist-air supply means for finely atomizing the fuel. A valve operating mechanism is provided for selectively stopping the intake through one of the intake ports in accordance with the operational condition of the engine. A control means is connected to the assist-air supply means for controlling the assist-air supply means to stop the supply of assist air from the assist-air supply means in at least a portion of an operational region in which the intake through one of the intake ports is substantially stopped.

Abstract: A modular control mechanism for shifting the phase of a camshaft relative to a crankshaft in an internal combustion engine, accomplished by shifting the angular position of the camshaft relative to the crankshaft. The mechanism comprising two hydraulic cylindrical housings attached to either the camshaft flange or the camshaft driving sprocket, and plungers within the cylindrical housings attached to the other flange to form a rotational hydraulic coupling. The hydraulic cylinders providing a pair of cavities which vary in displacement as the two flanges are rotated relative to one another. A control apparatus regulating the flow of fluid between the hydraulic cylindrical housings, thus controlling the phase shift between the crankshaft and camshaft. The control device using the energy produced by the reaction torque pulses on the camshaft, and resultant pressure pulses in the cavities, thus creating a self-actuating system.

Abstract: A cylinder head construction for an internal combustion engine that permits a large number of valves to be employed and good bearing surface without interfering with the insertion or removal of the multiple valve springs. This is accomplished by providing a relief in one of the camshaft journals that is juxtaposed to one of the valves so that the valve spring can be easily inserted and removed. In addition, the seating area for the valve springs in the cylinder head is machined to a diameter smaller than the diameter of the valve springs and a spring seating member is interposed between this cylinder head surface and the adjacent end of the valve spring and has a diameter at least equal to that of the valve spring.

Abstract: A number of embodiments of outboard motors incorporating fuel and air enrichment devices in which fuel is supplied to the engine for enrichment under pressure by a pump and additional air is also supplied to the engine induction system at least at atmospheric pressure. In some embodiments, the air is mixed with the fuel and is pressurized. The fuel and air flow are both controlled by a common valve member that may be operated either by a solenoid or a heated wax pellet.

Abstract: A pre-ignition lubricating system for an internal combustion engine includes an auxiliary oil pump that is activated in response to the driver's door of a vehicle being opened. A timer circuit insures adequate pre-lubrication after the driver's door is closed.

Abstract: A rotary engine that comprises a rotor having two side faces, a side housing disposed facing to one of the two side faces of the rotor and a center housing disposed facing to the other of the two side faces of the rotor. The side housing has an intake port formed therein. Also, the center housing has an intake port formed therein. The intake port of the center housing has an opening end which is dislocated from an opening end of the intake port formed in the side housing facing thereto to a retard side. A space is formed between the side face of the rotor and the center housing. And a relief hole is provided in the center housing in a dislocated portion of the opening end of the intake port of the center housing so as to escape a blow-bye gas pressure from the space.

Abstract: A piston for use in an internal combustion engine and including a central portion; a side wall portion adapted for sliding engagement with a cylinder; a connector end adapted for connection with a connecting rod; and a driven end adapted to receive combustion generated forces. The driven end defines a primary chamber adapted to receive fuel and accommodate combustion thereof; and the central body portion defines an auxiliary chamber, an inlet port providing a fuel injection path between the primary and auxiliary chambers, and outlet port means providing between the auxiliary and primary chambers a discharge path for combustion products generated by combustion in the auxiliary chamber.

Abstract: An electronic microcomputer based engine brake control device and a method for controlling an engine compression brake is disclosed. An algorithm for enabling engine brake operation includes monitoring a brake enable switch, engine RPM, engine fueling rate, cruise control or power takeoff system activation state, throttle position, manifold pressure and clutch pedal position. Engine brake operation is fully automatic and operates in a safe manner according to the disclosed algorithm.

Abstract: A throttle is disposed in the intake port per cylinder. At idle, the throttles are closed. The pressure in the intake port per cylinder increases during the intake valve closed period due to flow admitted to the intake port downstream of the throttle until it recovers to ambient before the valve overlap period. The flow rate is controlled individually per cylinder such that it is higher during the intake valve closed period than it is during the intake valve opened period. This allows the increased valve overlap to be used without increasing the residual mass fraction in the cylinder. As a result, the stability engine operation at idle and part load range is improved.

Abstract: In a method and system for controlling an engine idling speed applicable to an internal combustion engine, a pulse duty ratio of a pulse signal supplied to an engine idling control valve is set by adding a basic control value, a proportional constant, and integration constant. The integration constant, set according to a difference between a target engine idling speed and an actual engine revolution speed, is modified as follows; during normal engine idling, the integration constant is set according to which one of the compared values of the target engine idling speed and actual engine revolution speed is greater. However, when an external load is applied to the engine, the integration constant is set by a quantity corresponding to the proportional constant.

Abstract: The idling speed of an internal combustion engine is regulated with the use of an electronic control unit arranged to generate a signal for correcting the ignition advance and a signal for varying the piloting of a solenoid valve provided in a duct which by-passes a throttle valve which controls the air supply to the engine. For this purpose, the electronic unit acquires the instantaneous speed of the engine and the air pressure in the inlet manifold by means of sensors. The electronic unit implements an LQI (linear-quadratic-integral) type of control based on a linear mathematical model of the engine.

Abstract: An adjuster for an adjusting device which pivots about a pivot shaft, particularly for a throttle valve of an internal combustion engine. The adjuster has an electric control motor for pivoting the adjusting device and a safety restoring unit for moving the adjusting device to a defined basic position upon an interruption to the supply of power to the control motor. To produce the power consumed by the control motor and associated with this to reduce its structural size and weight, the restoring unit is embodied such that its restoring force acting upon the adjusting device is effective solely upon an interruption to the supply of power to the control motor.

Abstract: A load adjustment device has a control element (8) for action on at least two setting members (9a, 9b) which determine the output power of an internal combustion engine. The control element is spring-coupled with a driver (3) which can be actuated via an accelerator pedal (1) and, in addition, can be moved by means of an electric setting drive (10). A desired-value detection element (5) is associated with the driver and an actual-value detection element (22) which acts on the electric setting drive and cooperates with the desired-value detection element is provided. The electric setting drive is adapted to be controlled as a function of the values detected by an electronic control device (6). The setting members are developed, in particular, as throttle valves, the driver being adapted to be brought into functional relationship with all setting members, and the electric setting drive being adapted to be brought into functional relationship with at least one of the setting members.

Abstract: For suppression of knocking in an internal combustion engine, an engine vibration level is periodically generated at predetermined time intervals on the basis of an output signal of a knocking sensor which is installed for detecting the engine vibration, the engine vibration level thus generated being compared with a preset sensor failure level. When the vibration level remains lower than the preset sensor failure level successively throughout a period corresponding to a predetermined number of engine cycles, a knocking sensor failure indication signal is generated to thereby allow knocking control to be precautionarily performed for the safety of the engine operation.

Abstract: Herein are disclosed methods of conditioning fluid, such as damping fluid, in an electronically-controlled unit injector in order to facilitate quick starting of an engine. Fluid normally used to dampen the motion of an electrical actuator assembly of the unit injector can remain in the actuator assembly after the engine is stopped. If too much fluid remains and cools off in the actuator assembly, quick starting of a cold engine may be hindered. Each of the above methods expels and/or heats up at least a portion of the remaining fluid in the actuator assembly while the engine is at rest and thereby enables quicker response of the actuator assembly when the engine is started. Such quicker response improves the fuel injection delivery capability and timing accuracy of the unit injector during engine startup.

Abstract: Bayonet lugs and bayonet slots are provided on a fuel injector and a fuel rail respectively to provide for the injector to be installed in a transverse through-hole in the fuel rail by circumferentially registering the lugs with the slots, inserting the injector into the through-hole to a predetermined depth established by an abutment stop which is sufficient to allow the lugs to pass through the slots, and then twisting the injector about its own axis to remove the lugs from their insertion registry with the slots and cause the injector to become axially captured and correctly indexed in the through-hole.

Abstract: In methods for adaptively adjusting a fuel/air mixture, the adaptation factor is rapidly adjusted to take fuel characteristics into account when it develops that after tanking, poor control results are obtained with the adaptation factor previously applicable. As soon as there is an adjustment again to good control results, the conventional relatively slow adaptation is carried out. These methods afford the advantage that they can be carried out without special expensive mixture sensors.

Abstract: An air intake system for a supercharged automotive engine has an independent air intake passage an end of which is communicated independently and separately with a combustion chamber of each cylinder and a supercharger for supercharging intake air. The air intake valve closing timing is delayed after bottom dead point and the independent air intake passage is shaped so that the number of revolutions which causes maximum inertia in the independent air intake passage by supercharging in a high-speed region is higher than the number of revolutions of the engine at which maximum horse power is generated.

Abstract: A multi-cylinder internal combustion engine with an air intake system and an exhaust gas collection system has an exhaust gas recirculation apparatus for reducing toxic emissions. To operate the engine with a turbocharger and charge air cooler, the exhaust gas recirculation apparatus has an exhaust gas distributor, branching off from which is a number of end pipes corresponding to the number of cylinders of the engine. The exahust gas distributor is connected to the exhaust gas pipe of one cylinder, while the exhaust gas pipes of the other cylinders communicate with an exhaust gas manifold. The end pipes of the exhaust gas distributor each discharge into cylinder intake pipes immediately upstream of the inlet valve of the cylinders.

Abstract: A pitching machine for simulating the high speed, underhand delivered pitch used in fast pitch softball. An electric motor drives an arm on a 360.degree. vertical path of travel. A lost motion coupling between the motor and the arm permits a spring drive during a portion of each arm revolution. The arm is connected to a torsion spring so that energy stored in the spring drives the arm during a portion of each revolution at a high rate of speed to propel the ball from the pitching unit by centrifugal motion as the arm approaches the bottom of its path of travel. A shroud in the form of a cup-shaped cage open at one end cooperates with a curved member to hold the ball until the release point is reached. An optional spring biased, toothed, pivoted lever adjacent the shroud discharge opening frictionally engages the ball to cause a trajectory altering spin to the ball as it is propelled from the unit.

Abstract: A sighting apparatus includes a framework mounting a forward and rear post vertically adjustable to accommodate height of an individual, with an upper support beam mounted to each upper terminal end of each post. The support beam including a forward plate for mounting the bow thereon, and including a plurality of guide rods positioned on opposed sides of the support beam, with a central drive screw arranged for selective retraction of the bow string of the associated bow. The organization includes a plumb bob and bow angulating member to effect vertical alignment of the bow, with the bow string arranged for retraction and subsequent release to effect flight of an associated archery arrow from the apparatus in an aligned orientation for sighting of the bow.

Abstract: A gas fired convection cooking oven is provided with an improved air delivery and heat exchange structure for creating within the oven's cooking chamber a recirculating flow of heated air to cook food items supported therein. The structure includes a combustion box adapted to receive hot products of combustion from a gas burner, and extending into the cooking chamber through a lower portion of a vertical boundary wall thereof. Removably secured to the combustion box, and extending upwardly along the inner side of the boundary wall is a hollow baffle structure having a front mixing chamber communicating with the interior of the combustion box through spaced apart hollow legs with a discharge opening formed therebetween. Perforated skirt walls extending rearwardly from the mixing chamber define with the boundary wall a fan chamber which surrounds a motor-driven centrifugal fan impeller supported on the inner side of the boundary wall.

Abstract: A heat radiating briquette for a cooking grill is formed of a suitable ceramic refractory or other material to have a rectilinear, flat base, a pyramid upstanding from the base and a perimetric trough encompassing the base of the pyramid. Each face of the pyramid is provided with a series of grooves extending from the apex to the base of the pyramid and communicating with the trough. A multiplicity of like briquettes are to be arranged over the surface of a supporting grate spaced below with their apices pointed upwardly toward the food support grill and spaced above the heat source of the food grill. The side edges of adjacent briquettes on the grate are abutting so as to substantially prevent inadvertent seepage of food renderings to the heat source. Renderings from food cooking on the food supporting grill impinge on the briquettes and flow downwardly along the grooves to collect in the trough.

Abstract: A portable heat dispensing unit is provided with retractable ducts, and an internal heat chamber, having suitable in line apertures in the heater container vessel and heat chamber to accept a source of heat from from inserted burners. The heat is then fan blown through a retractable duct fastened to the heat chamber which can be directed to deliver the heat where desired. Other accessory components are: A thermometer to monitor the heat intensity: A second retractable duct surrounding the heat duct to insulate it from cold winds, and also for use as a return air duct when heat is applied to an enclosed space such as a tent or room. An opening is provided into the container vessel between the two ducts to allow the return air to be recirculated by a fan which moves the air through the heat chamber. The burner insertion holes in the container vessel also act as auxiliary air openings providing make up air access for burner requirements.

Abstract: A surgical endoscope particularly adapted for use in ophthalmological surgery includes a probe connected distally of a hand piece. Within the probe, there are three sets of optical fibers. The first set of optical fibers are five-hundred thirty micron fibers which constitute an illumination zone for illuminating the tissue to be operated on. An image guide has 3,000 three micron fibers, providing a 3,000 pixel image of the tissue. The distal end of the image guide has an objective lens bonded to it which preferably has a one mm to infinity depth of field. A laser fiber with an active diameter of two hundred microns provides pulses of laser energy to the tissue illuminated by the illumination fibers and imaged by the image fibers.