Abstract: A smoke marker for indicating the location of a target drone. An aluminum tube with one open end and one closed end contains a polyethylene bottle filled with titanium tetrachloride, a smoke chemical. The bottle is held in place within the tube by means of set screws adjacent the bottle's neck. A nylon washer containing an explosive primer and a metallic disc are disposed between the bottle and the closed end of the tube. The open end of the tube is potted closed with styrofoam potting. Upon ignition, the explosive primer forces the copper disc to collapse the bottom of the bottle. The neck of the bottle shears and the titanium tetrachloride is expelled from the aluminum tube and the bottle, creating a 25 to 30 foot cloud of smoke.

Abstract: A braking device for sleds, according to which rollers are used as braking elements which by means of an actuating element are moved from a non-braking position into a braking position while being pressed against the surface of the sliding path for the sled. According to a preferred design of the invention, pairs of rollers are employed with the rollers of each pair having different diameters.

Abstract: A train system particularly adapted to be used in tunneling operation to outwardly move the loosened earth and rock or muck and, for that purpose, which is trackless and takes its lateral guidance from the usual utility duct which is required along the tunnel. This trackless train system also distinctively includes wagons having each a walking beam suspension which supports the load carrying ground wheels in a longitudinal central row, such that the wagon adequately and undistinctively rides on a tunnel floor which is uneven or which has a transversely concave profile, such as to form an underground conduit.

Abstract: A lightweight, unitary plastic pallet adapted for handling heavy powder loads. The pallet has a substantially rigid lower deck, a flexible, reinforced and continuous upper deck adapted to deflect against the lower deck under load, and a plurality of integral legs permitting forklift transport of the pallet.

Abstract: A rotary hearth furnace comprising a refractory lined turntable, means for rotating the turntable while retaining the turntable against upward movement, a hood structure covering the upper surface of the turntable and a plurality of adjustably and removably mounted scraper blades supported in said hood structure over the upper surface of said turntable, and positioned to progressively move organic matter to be incinerated, and resting on the turntable, inwardly toward the center thereof, while controlling the depth of the organic matter. The turntable is provided with a central discharge opening for receiving ash materials from the surface of the turntable and discharging them into an ash collection bin, and the hood contains a high temperature heat source which is disposed over the turntable.

Abstract: A solid fuel conversion furnace for breaking down solid fuel into its two basic combustible components, combustible gases and combustible solids, prior to ignition. This is achieved by preheating the solid fuel when it is not in the presence of a combustion supporting atmosphere. This preheating of the solid fuel is achieved through the use of a heat exchange compartment where the hot exhaust gases transfer their heat through the heat exchange wall to preheat the solid fuel in the fuel compartment. The hot exhaust gases are obtained from the ignition of the combustible gases and the combustible solids in the presence of oxygen. This ignition occurs in the fire box area which is below the fuel compartment. The combustible solids are gravity fed to the fire box and the combustible gases are fed to the fire box by both their self-generated pressure and the furnace exhaust draft.

Abstract: The apparatus includes a feed box with a horizontal intake port for connection to a stoker feed and a vertical discharge port for transmitting coal to the burning zone, with a curved passage between the ports. An annular burner body has a central annular vertical delivery ring coaxial with the discharge port, a downwardly and outwardly sloped annular burner grid, and a marginal depending stabilizing flange. The ring and the flange rest on the top plate of the feed box for support and are keyed against rotation. An ash ring has an inner margin resting on the outer margin of the grid for support and rotation, and its upper surface slopes upward and outward to define with the grid surface an annular recess for retaining burning coal. A plurality of ribs on the ash ring and at least one breaker tooth on the grid cooperate to break down clinkers as the ring rotates, driven by a sprocket on the conveyor shaft.

Abstract: A hand held motor driven tufting machine employs concentric needles which reciprocate and oscillate in timed relationship to form loops of yarn on a backing sheet. An electric motor drives the moving parts of the device, and this motor has a metallic frame anchored within and closed by a lightweight housing formed of plastic materials. An improved form of joints connect the metallic frame of the motor to mounting supports formed of plastic materials to prevent failure of the joints under stresses caused by gravity and by vibrations generated by a reciprocating motion of the moving parts.

Abstract: Method and apparatus for differentially rolling-in tubes into plates and walls, especially of heat exchangers, according to which the magnitude of the expansion of the tube section to be rolled-in into the respective wall or plate is predetermined, is ascertained and maintained during the rolling-in action. The magnitude of the tube expansion for connection of the tube to the respective plate or wall is adjustable in conformity with a program and has different values over the rolling-in length of the tube.

Abstract: The mobile seafloor storage structure for storing POL (petroleum, oils, licants) comprising a pair of cylindrically-shaped enclosures having hemispherical-shaped end members. The two cylindrically-shaped enclosures are connected together by top, bottom and end members such that a center enclosure is formed between the pair of cylindrically-shaped enclosures. Various interconnections and related valves are utilized for moving POL, seawater, and gases from enclosure to enclosure thereby maneuvering the structure between the sea surface and the seafloor.

Abstract: In a marine vessel bottom cleaning device wherein a floating platform has spaced ways between which a vessel to be cleaned passes lengthwise and scrubbing devices are supported on the platform, at least two, elongate scrubbing devices, spaced from one another lengthwise of the ways, extending in a direction generally athwart the ways and toward one another, and in at least one position overlapping one another across the lengthwise path of the vessel, the scrubbing devices being selectively movable relative to one another from the position at which they overlap one another along the lengthwise path of the vessel in a direction outboard of the vessel and away from one another. The entire scrubbing device can be raised and lowered with respect to the platform.

Abstract: Means for protecting a towing or mooring cable comprising a longitudinal sleeve of resilient wear-resistant material, e.g., polyurethane, with at least one longitudinally extending external flat face, the sleeve being split into two individual parts and the parts secured together by a plurality of pairs of screws passing through holes in a metal strap bonded in one part into tapped holes in another metal strap bonded in the other part.

Abstract: A two-tone signal generator, serving as a horn for automotive vehicles, crises two complementary half-shells whose interior is divided by a common partition into two convoluted wind channels of different length resonating at different frequencies and opening into a common outlet. The inlet to the wind channels comprises a central duct with two lateral branches terminating at a pair of nipples to which a hose from an air blower can be selectively fitted; the junction of the branches with the central duct is an enlarged space containing a freely movable rubber ball which automatically blocks one nipple when air is admitted through the other nipple. The duct communicates with the two wind channels via respective lateral chambers formed in the two half-shells, each chamber being partly closed toward the outside by a lid provided with an eccentric air slot.

Abstract: A turntable is supported for rotation as well as for radial movement in a plane transverse to its rotational axis so that, while rotating, the periphery of a non-circular cam wheel which rotates together with the turntable may be maintained in operative driven engagement with the periphery of a drive wheel which is rotated at a constant angular velocity. A material extruding nozzle is positioned to extrude gasket forming material onto a work piece carried by the turntable at a fixed location which is in registry with the point of driven engagement between the drive wheel and the cam wheel, so that the material is uniformly applied to the work piece in a path which conforms to and is in registry with the periphery of the cam wheel.

Abstract: Apparatus for temporary positioning about a cylindrical object such as an underwater pipeline or the like for mounting and indexing a tool across the surface of the pipeline for treating same.

Abstract: An apparatus for treating work pieces in a closed space having a collapsible material. The treatment utilizes a period of subpressure and a period of pressure, in which cavities in the pieces are more or less filled with liquid. Prior to this the cavities are wholly or partially filled with a surface-tension reducing gas and/or solution.

Abstract: A novel development system for controlling the flow rate of developer through a narrow development zone, using a reservoir which has a feed chamber for maintaining a constant pressure head at the entrance to the narrow development zone. Developer flow is initiated upon demand by virtue of actuation of a valve positioned between the feed chamber and the entrance to the development zone; since considerable developer mixing occurs in the developer reservoir, mixing devices for mixing added toner with carrier beads may be simplified.

Abstract: An improved animal litter product particularly for small animals that is harmless to warm blooded animals and that includes along with the usual inert carrier vitamin E associated with the carrier with the result that the litter is odor inhibiting when contacted by odorous animal liquids and which has the additional benefit of being healthful for the animal if the deodorizing ingredient comprising the vitamin E is taken internally.

Abstract: Post-larval lobsters are raised to a size for marketing in a series of divided trays suitable for stacking and having therein a hollow tube in the center of the trays. Small holes are present on the wall of the hollow tube, the dividers in the trays and the floors of the trays. A pressure pump can be inserted in the hollow tube to aerate the water and to feed the lobsters by pumping air and food from the pump to pass through the holes.

Abstract: A check valve designed for incorporation in a milk line of large milking systems is comprised of a vertical tubular member having an outlet tube of smaller bore extending laterally therefrom at right angles thereto and a spherical valve element within the vertical member having a diameter considerably less than the bore of said member and greater than the bore of the outlet tube. The vertical tube extends above the discharge outlet a distance equal to the diameter of the valve element, is sealed at its upper end, and receives the valve element therein when milk is pumped through the lower end and out of the outlet tube. A horizontally extending circular valve seat is carried by the lower end portion of the vertical tubular member closely adjacent to the outlet tube and cooperates with the valve element to prevent return flow of milk from the outlet tube when pumping through the line ceases.

Abstract: An anti-pest variable height pet dish having a central food bowl with a pet-operable lid and an annular moat-type water trough removably or fixedly mounted around the central bowl, the moat and bowl being elevatable by means of telescopic legs or a tapered sectional pedestal having removable sections.

Abstract: A generally cylindrical housing containing a burner underlying a fluid conduit formed to provide a plurality of interconnected concentric helical coils, the outermost coil having a lower end portion projection below the lower ends of the inner coils. A reticulate baffle, in underlying engagement with the lower end of an inner coil, cooperates with the lower end portion of the outermost coil to define a combustion chamber, the baffle permitting flow of gases of combustion upwardly therethrough but retaining most of the burner flame within the combustion chamber. The fluid conduit and its mounting structure are arranged for easy removal from the housing and replacement therein.

Abstract: A test circuit for use with a boiler control circuit. A test switch and a lamp are connected between ground and a water level electrode. In the presence of a water path, a sufficient potential drop exists between ground and the electrode to light the lamp when the test switch is closed. If a ground or short exists, the lamp will not light.

Abstract: The improved combination of a rotary internal combustion engine and spark plug provides a bore in the engine housing extending from the exterior of the housing into communication with the rotor cavity defined by the housing. The bore has a threaded portion to receive the threaded shank portion of the spark plug and an annular shoulder extending in a plane substantially normal to the longitudinal axis of the bore. The spark plug has a complementary annular shoulder portion extending in a plane substantially parallel to the plane of the shoulder of the bore. The shoulder portion of the spark plug is so located as to engage the shoulder of the bore to thereby position the spark gap end of the spark plug relative to the rotor cavity. An annular channel means is provided adjacent the shoulder of the bore to provide an annular space into which is placed a gasket to prevent fluid leakage through the interstices between the bore and spark plug.

Abstract: A rotary machine useful as a rotary compressor or engine having a cylindrical compressor rotor with a lobe outstanding from its cylindrical rolling surface geared to another cylindrical rotor with a recess, in its cylindrical rolling surface, the rotors being rotatable within respective parallel intersecting cylinders of a stator so that the lobe sweeps its stator cylinder and meshes with the recess as it moves past the other rotor.The lobe and recess are of such complementary shape that the lobe more than half fills the recess while still contiguous with its cylinder and the leading face of the lobe is contiguous with the leading surface of the recess after separation of the rolling surface so that the gases entrapped in the recess are of minimum quantity, and are released from the recess back into the cylinder but behind the trailing surface of the lobe.

Abstract: An arrangement for rotating a valve of a reciprocating internal combustion engine relative to the valve seat in addition to the normal reciprocating motion of the valve, whereby to more evenly distribute wear on the valve and on the valve seat, and, in the case of an exhaust valve, to more uniformly distribute heating of the valve and thus avoid or minimize thermal distortion of the exhaust valve. The rotation of the valve is obtained by use of the well known principle in accordance with which the central longitudinal axis of the valve lifter is offset from the central plane (as measured in the lengthwise dimension of the cam shaft) of the rotating cam which imparts reciprocatory movement to the valve lifter and thus to the valve. The offset relation just described imparts a rotary movement to the valve lifter which, in turn, imparts a rotary movement to the valve during the period of cam rotation when the valve is lifted off the valve seat.

Abstract: A speed regulator for internal combustion engines utilizing a diaphragm carburetor and utilizing pressure developed in the fan housing of the engine to act on the diaphragm to regulate the fuel supply at high speeds with the option of utilization of vacuum in the carburetor to influence the fan pressure to control the fuel mixture during high speed phase.

Abstract: A device for correcting the proportioning of the air/petrol mixture furnished by a proportioning means to an internal combustion engine comprising a probe producing a signal which is a function of the oxygen or carbon monoxide content of engine exhaust gas and an auxiliary air admission valve downstream of the air/petrol proportioning means, this valve being periodically operable by control means sensitive to said signal.

Abstract: An apparatus for the detoxification of exhaust gases of an internal combustion engine having a fuel metering mechanism, such as a carburetor, which meters out fuel corresponding to the air quantity, is described. An air quantity measuring device is provided which controls the metering mechanism so as to achieve a slightly enriched fuel-air mixture. Thus, the air number (.lambda.) is initially maintained at less than 1, the air number 1 designating a stoichiometric fuel-air mixture. Secondary air is admitted via a secondary air pump, an oxygen sensor being disposed on the exhaust side, until such time an optimum of fuel-air mixture is reached. The secondary air is admitted into the suction tube of the internal combustion engine downstream of the air measuring device.

Abstract: A fuel metering system for an internal combustion engine meters out fuel in dependence on the pressure in a fuel supply container. This pressure is controlled by a valve or valves which provide communication with different regions of the induction tube of the engine. The control valves are electro-magnetic valves under the control of a suitably processed and amplified signal from an exhaust gas measuring probe which determines the concentration of oxygen.

Abstract: An improved fuel metering apparatus for a carburetor which provides an optimum air/fuel ratio at all engine speeds and loads. The air/fuel ratio is adjusted by means of a valve sensitive to intake manifold pressure which modulates the amount of bleed air mixed with the fuel prior to the aerated fuel being introduced into the venturi throat of the carburetor.

Abstract: A fuel injection system for externally ignited internal combustion engines in which a fuel metering and distributing valve is controlled by an air sensing element disposed in the air suction tube of the engine and by structure which is adapted to alter the restoring force exerted on the air sensing element through the fuel metering and distributing valve. The noted structure includes a control pressure conduit, a pressure control valve connected to the control pressure conduit and a relief valve also connected to the control pressure conduit and connected to the fuel metering and distributing valve. The relief valve includes a sleeve valve and a throttle which is controlled by the sleeve valve. The throttle opens into a pressure chamber disposed on one side of a slide member of the fuel metering and distributing valve. This slide member exerts the restoring force applied to the air sensing element.

Abstract: Engine timing fluctuations and intermittent loss of synchronization between the distributor and the timing gear are eliminated by this distributor drive system in which the distributor is mounted on a timing gear cover at the front of the engine. The distributor is driven from the timing gear via a drive disc and an adaptor shaft that are relatively axially moveable so as to isolate the distributor from axial cam shaft movement.

Abstract: Disclosed herein is an engine ignition system comprising a charge capacitor which is periodically charged, first and second ignition coils respectively including first and second primary windings and first and second secondary windings connected respectively to first and second spark plugs, first and second electronic switches respectively including first and second anodes connected respectively to the first and second primary windings, first and second cathodes connected to the charge capacitor, and first and second control elements operable, upon application thereto of a trigger pulse, to cause the first and second switches to be conductive, a relatively rotatable magnet and coil for generating trigger pulses in response to engine rotation, which coil has first and second ends respectively connected to the first and second control elements, and means for preventing false triggering of the switches comprising a second capacitor having a first plate connected to the first and second cathodes and having a seco

Abstract: An internal combustion engine wherein a rotary inlet gaseous mixture valve is provided and a separate rotary exhaust valve. The inlet valve and the exhaust valve are connected together through a drive means and are rotated at the same velocity and in precise timing with respect to the engine crankshaft. The exhaust valve includes a water cooling jacket thereabout. The inlet valve includes an individual gaseous mixture inlet passage for each combustion chamber.

Abstract: A forced air assembly for attachment to an otherwise unjacketed space heater consisting of a fan or blower centrally mounted in a relatively thin (height compared with width) channel, the channel being adapted to wrap around varying contours of stoves by virtue of a series of cut-out regions in side walls of the channel. Air is forced through the channel, heated, and flows out of the ends of the channel.

Abstract: An oven door comprising front and back metal door panels having a substantially rectangular central opening therein to receive a window unit for see-through into the oven compartment. The window unit comprises a substantially rectangular metal frame formed with spaced channel portions connected by an integral spacer portion, the spacer portions at the top and bottom of the frame being provided with aligned slots, and three spaced, parallel glass panels, the inner and outer glass panels being mounted in the channel portions of the frame and the center glass panel being inserted through the slots in the spacer portion. The center glass panel is supported at its lower edge and projects upwardly beyond the spacer portion at the top of the frame into the space between the front and back metal door panels.

Abstract: Apparatus for collecting heat of radiation includes a hollow member having a panel with a substantially flat exterior surface, the panel absorbing radiation incident to the surface and transferring the heat therefrom to a fluid passing through the member. A reflector body extends from the surface, and is adapted to reflect radiation incident thereto toward the radiation-absorbing surface.

Abstract: A device is provided for improving the thermal efficiency of a cylindrical radiant energy collector. A channel is placed next to and in close proximity to the nonreflective side of an energy reflective wall of a cylindrical collector. A coolant is piped through the channel and removes a portion of the nonreflective energy incident on the wall which is absorbed by the wall. The energy transferred to the coolant may be utilized in a useful manner.

Abstract: A damper designed to close the top of a fireplace chimney provided with a spring urging the same open and a second and stronger spring attaching the damper to a cable which extends down the chimney for purposes of opening and closing the damper, a lever being provided in the fireplace for locking the damper in either open or closed position, the damper being attached to the top of the chimney flue by means of an adjustable bracket.

Abstract: Neonates are tested for hearing deficiencies. A printed record is made of changes in heart beat rate in response to various sound stimuli. Relevant information such as heart beat rate, frequency of the stimulating sound, intensity of the stimulating sound, and related clock information is printed out in digital form. In a modification, changes in time between heart beats are extrapolated so that, in effect, changes in heart beat rate may be quickly determined on a go-no-go basis. These tests are particularly useful on infants under the age of eight months so that corrective measures may be taken prior to expiration of a critical period of development in the infant's life.

Abstract: X-ray techniques are used to detect early evidence of breast cancer. When such evidence is found, a target is implanted in the suspect area while the patient is being x-rayed. The target has an attached line which leads from the target out through the skin of the patient. A biopsy is made with a cutting tool guided on the line attached to the target, thereby obtaining a biopsy specimen accurately centered on the suspect area.

Abstract: A posture training device having adjustable shoulder straps connected to opposite points on a waistband of clothing of a user and including signalling means to apply a sensory stimulus to the user and means to detect the relaxation of tension in the strap.

Abstract: A blood pressure indicator adapted for self-examination includes a blood pressure arm cuff having an inflatable bladder, and a pair of pressure sensing switches impinging on the bladder and set to audibly or visually indicate the maximum systolic and diastolic pressure permissible. The bladder is inflatable by a flexible bulb connected thereto through a hose and a unidirectional flow valve which maintains inflation of the bladder. As air leaks out of the bladder, the patient notes when the pulse returns to the brachial artery, in relation to the indications given by the switches to ascertain whether the blood pressure falls within the permissible tolerances.

Abstract: A vibrator having a detachable probe for dilating the cervix includes an eccentric at one end of the holder near the probe, a variable speed pneumatic motor at the other end of the holder, the center of gravity being nearer to the motor-end of the holder, and an adjustable source of pressure medium.

Abstract: A ventilator is disclosed having a power unit for driving the ventilator which includes fluidic timing control means, gas input means and gas output means. The gas input means is connected to the timing control means via pressure regulating means. Display means are provided to the timing control means. The timing control means is connected to the output means and is alternately conductive and non-conductive of gas from the input means to the output means. The ratio of the periods of conductivity to non-conductivity remain fixed even where the frequency of alternation varies to maintain a fixed ratio of the inspiratory to expiratory phase time.

Abstract: There is disclosed an anesthesia breathing system which is interconnected between a source of gas, such as an oxygen or an anesthesia administration system, or both, and a patient supported inhalation-exhalation means such as a face mask or the like, which includes concentrically oriented double tubular inhalation and exhalation lines having one of the tubes positioned interiorly of the other tube, spacer means for supporting and maintaining the concentrically oriented tubes and spaced in relatively fixed spacial relation, first uni-directional valve means carried adjacent one end of the tube system and positioned adjacent to the patient supported inhalation-exhalation means to control gas flow through the inhalation tube and second unidirectional valve means adjacent to the first unidirectional valve means to control gas flow through the exhalation tube, such that the double tubular inhalation-exhalation line functions as a heat exchanger to warm the gases as they travel to the patient while at the same time

Abstract: Disclosed is a mechanism for allowing blood bags to communicate with each other comprising a connection pipe, a connection tube fitted into and bonded to said connection pipe, for connecting a first blood bag to a second blood bag, and a hard plastic-made communication pipe whose one end on the side of said first blood bag is hermetically sealed and the other end of which is fitted into and bonded to said connection tube and which is formed with a cutting-off small thickness section at its intermediate portion. The communication between said first and second blood bags is rendered effective by cutting off said communication pipe at said small thickness section.

Abstract: A fluid-operated hypodermic syringe for injection of medicinal fluids into livestock, which is adapted to successively and automatically pump out of a container a predetermined quantity of medicinal fluid and to inject it into one animal each. Means are provided to regulate the depth of the needle penetration.

Abstract: A tamper-proof, hermetically sealed cover for a cannula having a sharpened distal end. The cover is initially tubular encircling and covering a substantial portion of the cannula length and extending outwardly beyond the distal end. The free end of the cover is flattened and formed to provide a bubble-like chamber spaced in all directions from the sharpened distal end to avoid damage to the sharpened end; to hermetically seal the end for aseptic conditions and to prevent tampering if the cannula connects to a medicament source.