Abstract: A toy projectile comprising an upper stage having a segmented, tubular rocket-simulating body in which segments or vanes are hinged and formed to provide a rocket vehicle-like configuration in the closed condition and, upon opening, provide radially disposed air foil members which operate in the manner of an autogyro or helicopter to provide gyro rotation of the vehicle for slow descent after it has reached its apogee. The lower stage comprises a tube which is slidably and frictionally receivable within a lower adaptor portion on the upper stage so as to removably mount the lower stage on the upper stage. A solid grain propellant engine, including a thrust charge, delay and separation charge, is mounted in the tube of the lower stage. The lower stage serves to retain the segments or vanes in a closed condition before separation of the upper and lower stages by the separation charge within the lower stage.

Abstract: Lighting apparatus comprising a long span lightweight luminaire beam with a cross section that is substantially in the shape of an equilateral triangle and is formed in multiple sections secured together. One apex of the triangle is pointed downwardly. The side panels of the beam are used as mounting and reflecting surfaces for fluorescent lights or the like, while the ballast and wiring are mounted inside the beam to protect them from weather. The mounting hole for the ballast also serves as the access hole for assembly of the span, and the ballast may be inverted in its mounting for servicing. The beam is supported in an elevated, substantially horizontally extending position by one or more support posts. This apparatus is particularly advantageous for use in illuminating large outdoor areas such as tennis courts.

Abstract: An adjustable height gauge for use in hair cutting. The gauge is worn on the thumb, much like a ring, and includes a platform of adjustable height that supports the index finger of the same hand. The index finger and middle finger are used to grasp a section of hair and then the gauge is placed under the index finger in contact with the scalp and hair extending beyond the fingers is cut off. This device allows a person to cut his or her own hair by feel to any desired series of lengths for shaping and grooming.

Abstract: A power take-off mechanism which converts rotational motion to a variety of available rotating, reciprocating and/or oscillating motions. The device comprises a rocking frame within which is mounted a rotating shaft on which is mounted an unbalanced weight. One end of the shaft is connected through a constant velocity type joint to a power source and the opposite end of the shaft rotates within a restraining ring or area on the frame. The rotating unbalanced weight transmits force through the shaft to the rocking frame which is free to pivot or move rotationally about one axis and at the same time to reciprocate axially along the same axis. Power may be taken off from various points on the frame as either reciprocating motion, reciprocating motion with a cyclicly reversing twist, circular motion inscribed on a plane of rotation, or eliptical motion inscribed on a plane of rotation.

Abstract: This invention provides a pressure transmitting and sealing apparatus between a high or low pressure fluid line and a gauge monitoring the pressure of the fluid in the line. This apparatus transmits pressure fluctuations between the measured fluid and a dissimilar fluid in the standing line connected to the measuring gauge. The invention is particularly applicable in instances where the ambient temperature is below the freezing point of the measured fluid and a non-freezing fluid is required in the standing line and gauge. The apparatus comprises an in-line piston and cylinder unit which transmits variations in the pressure in the measured line to the fluid in the standing line to the gauge, while maintaining separation of the two fluids and at the same time allowing the non-freezing fluid in the standing line to lubricate the piston and cylinder. In the event of a break in the standing line, the piston will prevent leakage from the measured fluid line.

Abstract: A fish hook with a reverse bend near the end of the shank which forms an almost closed loop. A second hook or auxiliary lure or streamer may be attached by slipping the eye thereof over the point and barb of the first hook and snapping the eye of the second hook into the loop near the end of the shank of the first hook.

Abstract: An improved veneer lathe which cuts off a sheet of veneer from a log supported rotatably by applying a torque directly to the outer periphery of the log. An external force for cutting the log is fed from the vicinity of a knife included in the lathe. The log core is not subjected to a load attributable to a cutting resistance so that even logs of a poor quality are usable for turning veneer sheets therefrom, enhancing the yield of plywood production.

Abstract: A carburetor comprising a body defining a throat, a throttle slide member slidably mounted on the body and disposed in the throat, and a tapered metering rod or needle mounted on the slide member and extending downwardly into a fuel supply tube leading into a fuel reservoir or bowl secured to the body. The slide member has front and rear, substantially flat panels disposed in substantially parallel relation, with the front panel being shorter than the rear panel for the purpose of providing air at the outlet of the fuel supply tube even when the slide is in a closed position and for directing air toward the outlet when the slide is in an open position. The body is provided with a substantially axial groove intersecting the fuel outlet at the throat for the purpose of directing high speed air flow toward the metering rod and over the fuel outlet when the slide is opened.

Abstract: Thin monocrystalline like layers and articles comprising such layers as well as methods of making the layers and articles are disclosed. The layer have a thickness on the order of a micron and have a surface area on the order of 1 cm.sup.2. The layers are made out of a given material and are grown on a layer made of a material different from the given material which rests on a crystal mass made of either the same material or of a material having the same or a related structure as the crystal to be grown.

Abstract: Disclosed is a container for liquids, especially urine, with a lid which includes a spout. The upper and lower ends of the container are shaped complementarily to facilitate nesting of successive containers on top of one another. The spout is guarded by an upper nesting container, and, in some embodiments, may be or form part of the upper nesting formation.

Abstract: A lifting lever is rotatably mounted on at least one side of a dockboard for movement to a raised position for raising and holding one end of the dockboard above a loading dock or the like so that the forks of a lift truck or the like can be positioned under the dockboard to move it. The combination of the locations of the pivot point for the lever, a roller on the lever and a lever stop on the dockboard provide an over-center lock in the raised position of the lever and an automatic return of the lever to the lower position upon lifting of the dockboard by a forklift truck or similar vehicle. In one embodiment of the invention, the bearing roller engages the loading dock to lift the dockboard as the lever is moved to the raised position. In a second embodiment, the bearing roller engages a lifting arm pivotally mounted on the dockboard to move one end of the arm into engagement with the loading dock to lift the dockboard.

Abstract: A support member for semi-trailers or the like comprising two driven spindle-jacks each with two telescoping inner and outer tubing and each with one bevel-gear drive, one of these drives being actuated by spur-gearing itself actuated by a handcrank, the bevel-gear shaft of this bevel-gear drive penetrating the spur-gearing and forming part of same and being supported at the opposite end as well as between its ends in the outer tubing.

Abstract: This invention relates to a method for a manufacture of plastic sandwich element in which a first extruder is charged with essential ingredients for productions of foamed cellular plastic at a predetermined temperature. A second extruder is charged with essential ingredients for production of solid plastic at a temperature of at least 25 degrees Farenheit below the predetermined temperature. The resulting sandwich is extruded through an extrusion die forming an integral plastic sandwich with the heat of the foamed plastic layer causing a partial melting.

Abstract: A door mat formed of a flexible, waterproof material comprising a lower section and an upper section hingedly connected to the lower section at one end thereof. In this manner, the upper section may be lifted from the lower section for the placement between the sections of a newspaper or other article. The upper section may then be lowered to cover, protect and retain the newspaper or other article between it and the lower section.

Abstract: A tent peg mallet and extracting tool is provided which includes a variety of functional portions to perform operations on wooden, metal, or plastic tent pegs or the like. The tool includes a mallet portion having a face for pounding wooden or plastic pegs without damage, a rigid plate secured to the mallet portion for pounding metal pegs, a tab extending from the end of the mallet portion for digging or prying to loosen the pegs, and a peg removal loop secured to the mallet portion to facilitate peg pulling.

Abstract: A tool for use in a moulding machine suited to introducing plastic material under pressure into the mould, comprises a two part mould defining a mould cavity, the mould cavity including a recess formed in one of the parts. The other part closes the recess in use and has slidably mounted therein at least one support member for supporting a core insert in the mould cavity. The or each support member being moveable between a first position in which the member projects into the mould cavity to support the core insert at the commencement of a moulding operation and a second position in which the member is at least partially retracted from the mould cavity to disengage from the core insert. Thus when material is introduced into the mould cavity the or each support member is urged from the first to the second position by pressure of the material after the core insert has been enveloped in the material.

Abstract: A reinforcing sleeve of plastic or a similar material for the ends of hard paper reel cores or the like which form the support cores for wound goods such as paper, foils, textiles or the like. The sleeve comprises a collar adapted to rest against the end faces of the reel core and a radial, hollow projection integrated with the collar and the outer periphery of the sleeve, the projection being adapted to engage one end face of the reel core and to house a driver system. A reinforcing ring is integrated in the collar and comprises a radially extending receiving element for the driver system, the receiving element being integrated in the radial projection and reinforcing it.

Abstract: A pumping apparatus, more especially for fluid materials containing entrained gas pockets, comprises a single entry centrifugal impeller pump and means for maintaining a reduced pressure on the side of the impeller opposite said single entry to the pump. The pump impeller may have gas evacuation passages extending through the impeller disc from orifices located on the low pressure side of the impeller blades. The pumping apparatus preferably includes a liquid chamber communicating with the pump casing on said opposite side of the impeller, means controlled by the liquid level in said chamber for connecting the latter either with a vacuum source or with atmosphere, and means responsive to atmospheric pressure within said chamber for discharging liquid therefrom to the inlet side of the centrifugal pump.