Abstract: A divider for a tunnel oven converts the moving surface of the oven into at least two lanes so that two or more different brands or types of articles can be dried without intermixing. The divider comprises at least one cable guide mounted to the tunnel oven housing at the inlet and the outlet of the oven. The cable guides extend downwardly to a point adjacent to and above the moving surface. A cable extends the length of the oven from one cable guide to the other and effectively divides the moving surface of the oven into two lanes. In a preferred embodiment there is a pulley wheel at one end for reversing the direction of the cable to provide a two strand divider and a ratchet wheel for adjusting the cable.

Abstract: A tissue culture holder has an insulating chamber in its base below the culture containing chamber or chambers. The insulating chamber is filled with air or a clear liquid and may be sealed in a low humidity environment so that, in the case of an air-filled chamber, there will be minimal or no condensation in the chamber. In the case of a multi-well tray, the insulating chamber below the wells may be sealed or may have passageways for circulating air through the chamber and up into the space above the wells.

Abstract: A clutch servo for a vehicle cable-operated clutch system has a housing, an input member to which an input force is applied by the cable which has an inner cable and an outer sheath, an output member connected to a clutch, and a movable wall for augmenting the output force which acts through the output member. The movable wall is operated by a fluid pressure chamber, pressurization of which is controlled by a valve in response to the input force. In one construction the inner cable is movable relative to the movable wall and a locking device is incorporated to lock the inner cable and the movable wall against relative movement when the movable wall is not in its retracted position. This ensures that the servo is not affected by adjustment of the cable to compensate for clutch lining wear when this adjustment is performed between the servo and the pedal.

Abstract: An oven especially--but not exclusively--for baking French bread has a single loading opening which is closed by a principal door having a fill opening therein which, in turn, is closed by a series of small longitudinal, superimposed folding doors. One edge of each folding door covers the adjacent edge of the folding door immediately next to it. The small doors either pivot over an arc 180.degree. or slide laterally. The back of the oven may be equipped with a set of doors, such as the small doors. A gap separates the front edge of plates for supporting the bread and the plane of the interior side of the small doors. The plates are relatively thin, movable perforated sheets. The ends of a latch or hook-up bar may slide into supports on the stiles of the loading opening or be held in struts provided on each side of the small doors.

Abstract: Improved combustion of liquid fuel is achieved with a porous fiber burner by forming a mixture of the vaporized fuel and all of the desired combustion air sufficiently heated to prevent condensation of the vaporized fuel, and introducing the heated mixture into the porous fiber burner to effect flameless combustion on the outer surface of the burner. The resulting surface combustion produces a high proportions of radiant heat and increased thermal efficiency while suppressing the formation of nitrogen oxides and other pollutants in the flue gas. Periodically, fuel gas may be supplied to the same porous fiber burner.

Abstract: A germination floor system for a malt plant having a plurality of pivotally mounted tray assemblies movable between a horizontal position for supporting grain during germination and an approximate upright orientation to provide access beneath the floor for cleaning. The tray assemblies are capable of being manually movable to the cleaning position or, alternatively, may be fitted with a pneumatic cylinder and/or spring devices to facilitate movement. In the vertical cleaning position, the individual tray assemblies are fixed in position to prevent injury to personnel beneath the structure.

Abstract: A source (100, 101, 200, 300, 400) of a beam of positive ions or atoms comprises an ion-emission pellet (1, 401) consisting essentially of a solid electrolyte. Preferred solid electrolytes for the pellet (10, 49) are alkali or alkali-earth mordenites. A pellet heater is capable of heating the pellet (1, 401) to an ion-emission temperature at which ions are emitted from the pellet. A beam-forming electrode (2, 4, 31, 60) contacts an ion-emission surface (22) of the pellet (1, 401). The beat-forming electrode (2, 4,31, 60) has at least one passageway extending through it into which ions from the ion-emission surface (22) can pass. Ions emitted into the passageway are discharged from the source as unneutralized ions or neutralized atoms.

Abstract: A meat-grilling device consists of an open metal box and a throw-away fuel pack enclosed in a closed box of wire netting for insertion into the metal box, the top of the wire netting serving as grid. The fuel pack comprises three superposed layers: an uppermost layer of charcoal lumps, an intermediate layer of paraffin-soaked wood shavings, and a lowermost layer of igniter material in the form of crossing paper strips covered with a rapid-igniting material. Two long side walls of the metal box are perforated by air openings which, during transport, are covered by four flat legs. The legs are swivelled into vertical position during grilling so as to distance the box bottom from the ground. The fuel is lighted by a match put through an air opening to the igniter material, which ignites the wood shavings over the entire pack area, and which, in turn, lights the charcoal. The wood shavings are consumed rapidly causing the charcoal layer to drop down remote from the grid, preventing scorching of the meat.

Abstract: An instructional device is disclosed herein having a booklet containing a series of sheets displaying questions, selectable answers and clues taking the form of pictorial, graphic and alpha/numeric characters. The selectable answers are displays of specific graphic forms and these graphic forms are repeated in seemingly random arrangement on an answer area of the sheet which includes an index mark. A separate decoder is provided having a case with open windows adapted to visually display underlying graphic forms from the answer area for visual comparison with selected graphic forms entered by the user into the decoder via movable members carrying graphic forms wherein the selected graphic forms on the movable members appear adjacent to windows with the correct answer association.

Abstract: In a dental articulator for simulating movements of a mandible relative to an upper jaw, comprising an upper part (2, 4) adapted to carry an upper jaw model (7), a lower part (1) adapted to carry a lower jaw model (8), and a hinge (13, 13) connecting said upper and lower parts, the hinge defining an axis (A-B) extending substantially horizontally in a plane extending substantially perpendicularly to the upper and lower parts for articulating said upper part with respect to the lower part about the hinge axis: the invention provides two pins (18) displaceably mounted in a first laterally extending slot (22) in the upper part (4), the pins extending downwardly from the upper part and being adapted to be fixed in said first slot, a constraining bar (19) fixed to said lower part (1), the constraining bar having a constraining edge in front of said plane and facing rearwardly towards said hinge axis, and the constraining edge being engageable with said pins (18) and spaced from the axis a distance corresponding to

Abstract: Heat rays of the sun are concentrated and focussed by means of a reflective and/or lenticular device at a focal point for the purpose of the cremation of corpses, and their reduction to ashes thereby, either as a system per se or in combination with various ancillary buildings, equipment and facilities, more particularly an auditorium structure for conducting a funeral service or the like and from which a corpse may be transferred to the focal point of the concentrating device preferably by elevating the corpse through an opening in the ceiling and/or roof of the structure.

Abstract: A collapsible fluorescent tube fixture comprises a frame having a pair of spaced apart tube end supports each carrying a row of sockets, each socket being for receiving electrodes of one end of a fluorescent tube, and a scissors assembly connected between the supports for permitting the supports to move together into a storage position and to accommodate various length tubes and apart into a use position. Fluorescent tubes can be engaged between the sockets of the two supports with the supports in their use position. A boom has one end connected to the scissors assembly and an opposite end which carries an electrical ballast. The ballast is electrically connected to the sockets and may serve not only to electrically ballast the fluorescent tube but also to mechanically balance the weight of the frame. A pivot clamp connected intermediate the ends of the boom can be used to mount the boom on a tripod or other support structure.

Abstract: An improvement in reflective louvres for lighting fixtures is disclosed. The improvement is directed toward a means to interlock the louvre components together so as to create a tight fitting, uniform seam at the junction of the various components. The present invention is particularly suitable for use with louvres having reflective parabolic or other curved surfaces. The present invention maximizes the reflective capability of the louvre while presenting a more aesthetically pleasing lighting fixture. Further, a louvre according to the present invention is easy to assemble and requires a minimal amount of labor in assembly.

Abstract: A light transmission fiber illuminating device having a transparent body is provided with an opening containing inorganic particles with an illuminated or a silicated property coated with oil. A transparent cap covers up the opening of the transparent body.

Abstract: A gas burner having at least one continuous annular gas delivery nozzle in a top plate of its head. The top plate forms part of a cap-like upper member supported by a dish-like base member, the two forming between them a gas chamber. The gas chamber accommodates at least one insert plate which has a boss extending upwards into an opening of the top plate to form with the rim of the opening or with the annular boss of another insert plate an annular gas delivery nozzle.

Abstract: An improved intake valve for an internal combustion engine is provided. The improved valve has a ridge extending from the downstream side of the periphery of the valve head to aid in the improved aerodynamic flow of the fuel mixture gas through the valve opening. The ridge acts as the center portion of an ideal air foil and thus reduces the back pressure, and hence the drag, presented by the valve to the flowing gas fuel mixture. By reducing the drag, more fuel mixture in a given time and space can be provided into the combustion chamber and the horsepower of a given size engine is increased. In other words, a smaller and lighter engine can be used to do the same work, with the net result of better fuel economy, better packaging, lower production costs and so forth. Alternatively, a given sized engine can be made to produce more power.

Abstract: A heat-dissipating light fixture for use with a tungsten-halogen lamp has an externally finned metal body provided with an internal cavity divided into two opposite portions by an integrally formed heat shield having a socket opening formed therethrough. An electrical connector is secured to one side of the heat shield, over the socket opening, and a graphite foil disc is secured to the other side of the heat shield, the foil disc having central tab portions which overlie the socket opening. The lamp is installed in the fixture by pressing the lamp base portion through the foil disc and the socket opening until the connecting prongs of the lamp enter prong openings in the connector. Insertion of the lamp base into the socket opening bends the foil tabs into the opening where they are compressed between the lamp base and the interior surface of the socket opening. The heat shield intercepts and absorbs infrared radiation generated by the lamp reflector toward the connector.

Abstract: The receiver has fibrous material in the form of hanging wires or knitted metal mats in the entry of the duct to absorb radiant energy. A cooling medium, such as air, is passed over the fibrous material to cool the material and convey heat into the duct for subsequent use.

Abstract: A self-contained, free standing, on-demand, woodburning furnace including a firebox (52), including means to force combustion gases through a manifold (68), a hot air gathering plenum and means to selectively force feed the fire (34, 36, 38, 40, 68) and draw heated air from the furnace (8, 10, 12, 14).

Abstract: A self-powered control system for a gas-fired appliance having a pilot burner and a main burner includes an emissive surface in the flame of the pilot burner and a photovoltaic device for irradiation from the emissive surface for providing electrical power for the control system. Two normally closed electromagnetic latching valves are arranged in series between a source of fuel gas and the main burner with a connection to the pilot burner between the two valves. The first valve is latched open when the photovoltaic device is irradiated by the emissive surface and is unlatched to close when the device is not so irradiated. The second valve is unlatched to close when the main burner is not burning. A double acting solenoid or the like is used for sequentially opening the first and second valves for lighting the pilot and main burners. A safe, reliable control system is thereby provided without external electrical power. Similar principles are used for powering a safety flue damper and air flow fan.