Abstract: A model airplane fuselage is molded of rigid foam so that a rudder-mount at the rear of the fuselage is made up of alternating projections defining a rudder slot, some of the projections being undercut for locking the rudder in place by engaging rudder projections. A slot for a wing is flared at the outer ends to allow wedges to be pressed beneath the wing to form a dihedral configuration.

Abstract: A rigid, hollow transparent ball has a figure therewithin. As the ball rotates, the figure is rotated by the mesh between a gear fixed to the figure and a gear fixed to the inner surface of the ball.

Abstract: A toy has an elongate body dimensioned to be held in the hand. A whistle or reed responsive to the passing of air to produce a sound is positioned at at least one end of the elongate body. Throwing the body through the air produces a sound.

Abstract: Stimulation of oleoresin production associated with living cells can be chemically induced with dilute systemic application of ethylene or ethylene-releasing compounds. One such ethylene-releasing compound is 2-chloroethylphosphonic acid. A further increase in oleoresin production can be accomplished by using ethylene-releasing chemicals in combination with the bipyridilium salts, diquat or paraquat. Through the application of ethylene-releasing chemicals in combination with a bipyridilium salt, the effect of lightwood inducing chemicals is expanded over a larger portion of the treated tree, and more oleoresin is produced. Oleoresins are extracted from the trees by known methods, and the naval stores products are recovered therefrom.

Abstract: A flame treatment apparatus for use in delinting cottonseed comprises a generally vertical stack having a horizontal toothed seed feed roller rotatably mounted across its upper end and gas burners providing a flame curtain across the stack passage through which the seeds to be cleaned drop. The stack walls are dual to provide an annular space surrounding the flame treatment passage and cooling air is passed through that space.

Abstract: A composite wood material, specially adapted for use as part of a door with a long fire rating, comprising a board material made of wood chips and fire-retardant chemicals and one or more sheets of material of pressed wood fibers with a fire retardant added thereto, designed to optimize resistance to penetration by fire, increase screw holding ability, resist splitting and minimize cost.

Abstract: A storm window assembly particularly adapted for placement adjacent the existing window frame and secured without the necessity of any bracketry permanently secured to the frame.

Abstract: Multilaminate printed circuit boards have at least three conductor layers separated by two insulator layers. After drilling through the boards, cleaning of the drilled hole is accomplished by forcing a slurry of granular abrasive grit in a liquid carrier through the hole. Manifolds direct the slurry through the holes thereby cleaning them.

Abstract: In a gear finishing or other machine having a base, a table support mounting a reciprocal table having a head stock and a tail stock for supporting a workpiece gear or spline to be finished, a pedestal on the base mounting a motor-operated transmission and a depending machine head mounting a power-driven abrasive honing, or other type finishing gear rotatable upon a horizontal or vertical axis, the table support or head being relatively adjustable with respect to the other to bring the workpiece teeth into operative position with respect to the teeth of the finishing gear. The improvement which comprises a first gear train connecting said transmission to said finishing gear for rotation thereof at a predetermined speed. A drive spindle is journalled through said head stock adapted for axial drive engagement with the workpiece gear to be finished. A second gear train interconnects said transmission with said drive spindle for rotation at a predetermined speed.

Abstract: An apparatus for simultaneously grinding a peripheral shape and edge surface upon a pair of ophthalmic lenses including an abrading wheel and first and second floating heads for rotatably supporting a pair of ophthalmic lenses on either side of the abrading wheel. The lenses are biased toward the wheel and are incrementally rotated about mutually parallel axes which lie parallel with a central longitudinal axis of the abrading wheel. An electronic control system is operably connected to each of the lenses and serves to control incremental rotation of each of the lenses as well as lateral engagement of the lenses with the central abrading wheel.

Abstract: An apparatus for grinding cylindrical gears by means of a generating method, comprising two substantially plate-shaped grinding wheels for machining a right tooth flank and a left tooth flank of the gear by means of a practically point-shaped contact zone disposed at a respective lateral edge of each grinding wheel. A respective grinding support is provided upon which there is mounted an associated one of the grinding wheels, and means pivotally mount each grinding support at the region of the associated grinding point.

Abstract: An abrasive belt apparatus for machining a workpiece to produce a preselected contour and finish comprising means for positioning the workpiece along a predetermined axis during machining operations. An endless abrasive belt is disposed in a plane substantially aligned with the axis of the workpiece and driven by suitable drive means. The belt is trained about contoured contact means disposed proximate a section of the workpiece and movable along an axis substantially perpendicular to the axis of the workpiece to bring the abrasive surface of the belt into contact with the workpiece for removing stock to produce a desired contour and finish upon actuation of the belt. The direction in which the belt is driven at its location of contact with the workpiece produces a finish having marks which run substantially longitudinally of the workpiece. Means are provided for selectively rotating the workpiece during machining operations to produce a workpiece having a substantially circular outline.

Abstract: An abrasive drill of small diameter or "micro" drill, on the order of tenths of a millimeter to about a millimeter in diameter, is provided with a concentric cored portion occupied by relatively non-abrasive material. The filled portion is small enough that during drill rotation all of the surface of a workpiece within the outline of the end of the drill is abraded sufficiently by some part of the rotating end of the drill to crumble away rather than leaving any solid core or large fragments of the workpiece. The drill composition comprises abrasive particles in a less abrasive metallic matrix. The drill is formed by deposition of matrix material entraining abrasive particles onto a taut filamentary mandrel. The mandrel may be metallic, such as copper wire or may be non-metallic, such as nylon or other synthetic polymeric textile fiber composition.

Abstract: The invention relates to a wheel for centrifugal jet machines with two rotating wheel discs, a plurality of centrifugal blades distributed evenly around the periphery, each blade being provided with lateral ribs or strips, the blades being insertable from the inside into radial grooves in the wheel discs and held therein by fixed stops. According to the invention, the length of the lateral strips is shorter than the diameter of the central free space of the wheel formed by the inside ends of the blades. Moreover, the width of the part of each centrifugal blade projecting beyond the lateral strips is smaller than the distance between the two discs.

Abstract: Fireproof building element with a multi-sheet glazing unit of glass or glass ceramic characterized in that at least one of the glass sheets is a fire resistant glass sheet. The building element contains one or more high heat reflective foils arranged between the sheets at a distance from the fire resistant glazing unit. The foils can be put in a rolled or folded form between the two sheets of the building element such that the visible area is not covered, and they can, in the event of a fire, be spread out completely between the sheets.

Abstract: A simplified hub and strut system for the construction and assembly of geodesic domes. The system is characterized by the outer faces of the hubs and struts being provided with recessed rabbets which function as shoulders for receiving flat nesting panels of transparent or opaque rigid sheet material comprising the outer skin of an assembled dome. The inner faces of the struts are desirably also provided with recessed rabbets to function as shoulders on which to seat interior panels of rigid sheet material. The system is also characterized by the use of aligning dowels to facilitate initial assembly of hubs and struts preliminary to fastening.

Abstract: A box-like platform having a mast leveling hinge support anchored thereto and a mast structure pivotally attached to the upper end of the hinge support is pivotally attached at one of its ends to an elongated skid unit. The opposite end of the platform is arranged to be raised or lowered by a pair of jacking assemblies connected to the skid unit to effect leveling of the platform. A hydraulic ram having one end connected to the mast and the other end connected to a ram beam supported by a lower extension of the platform enables the mast to be raised to its upright position. By utilizing the ram in conjunction with the leveling characteristic of the platform, the mast assembly can thus be raised to a level and stable condition without the skid unit being perfectly level with respect to the earth's surface. The apparatus permits proper alignment of the mast to the center line of the well to compensate for settlement of the skid unit on an unlevel foundation.

Abstract: Apparatus for use in guying transmission towers or the like which comprises an assembly of a plurality of lengths of wire strands which are anchored to a tension equalizer device at one end of the strand lengths and terminate in a single wire rope socket at the other ends thereof.

Abstract: A structural member comprising a sheet of industrial material in which is formed a plurality of dome-like projections of which at least the major portion of the configuration thereof in plan view is circular and said projections being located in the plane of said sheet in a structurally strategic geometric pattern which repeatedly blocks straight lines of vision across said sheet through said pattern of projections in all directions to form a one-piece rigid structural member capable of resistance to flexure and the intermediate portion of the sheet between said projections comprising arcuate continuous structural stress-resisting sections extending between the opposite edges of said member. Variations in patterns of projections comprise different embodiments of said member and, when fabricated, said member lends itself to a variety of end uses. When in the form of a composite panel, a flat sheet of planar material is affixed to the upper ends of said projections.

Abstract: Apparatus for batchwise transfer of articles to a receptacle comprises an elongate, upwardly open tray which is longitudinally reciprocable between a loading position and an unloading position. An article receiving compartment within the tray is defined rearwardly by a pusher and forwardly by a hinged flap. When a portion of articles has been loaded into the compartment, the tray is subjected to a longitudinal shaking action. The tray is then moved to its unloading position wherein the compartment therein is located within a receptacle. During this movement the flap hits against a stationary abutment whereby it is pivoted clear of the front end of the compartment. Subsequently, the tray is withdrawn to its loading position and simultaneously the pusher is moved forward relative to the tray whereby the articles are transferred gently from the compartment to the receptacle.

Abstract: Method and apparatus are disclosed having particular utility in connection with packages overwrapped with heat shrinkable film and which include a tear-tab opening. The apparatus includes means to sever the film and tape together by the use of a cutting tool. The cutter is generally pen-shaped, the nib portion forming the cutting surface. Other parts of the apparatus include a tab roller which provides variable control capability to allow the tab to be positioned at a pre-selected place on the package. The tear tape tab produced by the apparatus and method of this invention eliminates the need for melt re-inforcing and is applicable to high speed operations of either the continuous or reciprocating kind.

Abstract: Cases are accumulated in end-to-end relationship on a continuously driven infeed conveyor and stop means is provided adjacent the downstream end to selectively advance several cases in a group onto a pusher conveyor of the endless chain type. A lift table at the downstream end of the pusher conveyor raises these cases upwardly at a packing station where they are loaded with slugs of articles appropriately segregated for being dropped into the upwardly open packing cases in accordance with conventional practice. The packer accommodates the cases in each group in indexed relationship to one another and means is provided for so indexing the end-to-end cases. The endless pusher conveyor is spaced downwardly of the level of the cases on the infeed conveyor such that the second case in a group of two cases is received in a canted configuration with its leading edge supported on the top of the pusher associated with the first case.

Abstract: Rod-like tools mounted on gears so as to be swung together and apart by a reciprocating drive and running across a conveyor intermittently moving loaded egg containers, likewise oriented across the conveyor, are moved together to fold over the top corrugated strips of the upstanding sides of the egg container, as presented to the machine, by 90.degree., to bring these strips into abuttment. Each corrugated strip is backed by a flat strip and one of the two has tabs which are folded over by 180.degree. and adhesively bonded to the other flat strip. The folding over of the tabs is performed by a set of fingers that move between segments of the first-mentioned folding tools to raise the tabs at an oblique angle, after which push rods bend them over completely.

Abstract: A grouping of straight tubes, bundled and packed for shipment, having the tube ends on one end of the bundle deformed for locating and supporting the tubes in a tube sheet, with the deformations located and produced in a manner resulting in a compact shipping package and improvements in handling at the job site and place of manufacture.

Abstract: Articles of fruit are fed to a receiving head, positioned in a predetermined pattern for packing, transferred in that pattern to a transfer rack which advances toward and pivots into a container to be loaded, and deposits the fruit in the same pattern. Apparatus for pivoting the transfer rack as it advances toward the container includes rotational members connected by a chain. Additional articles of fruit in a different pattern are deposited as a second layer by means of adjacent duplicate apparatus.

Abstract: A tractor mounted corn harvesting unit has ground engaging steerable wheels, side frame members pivotally connected to the tractor, and a hydraulic cylinder connected between the tractor and the harvesting unit for adjusting the unit weight carried by the ground engaging wheels. The side frame members movably support the rear end of the harvesting unit on the tractor for up and down movement of the front end thereof, and the hydraulic cylinder operates to raise and lower the harvesting unit between an elevated position therefor, wherein the ground engaging wheels provide substantially no ground support for the front end of the harvesting unit, and a lowered position therefor wherein the wheels provide at least a partial ground support for the harvesting unit.

Abstract: A mower and grass collector, the mower having a closure over its discharge port for opening and closing the port in accordance with the mounting of the grass collector on the mower housing, the closure being spring biased to a closed position and being swingable forwardly and downwardly in the housing by operating means carried by the collector and intrudable into the housing through the port to press open the closure upon mounting of the collector on the mower housing.

Abstract: A haymaking machine comprising drums rotating about substantially vertical axes and driving thin flexible skirt-like elements of rubber or the like with or without stiffeners or control devices. The skirt-like elements may be attached to the drums or to an endless belt which laps the drums, and these elements may be of various shapes and be with or withut edge spikes or other projections. In operation these elements follow the ground contours and lift and entrain the cut fodder.

Abstract: An alarm electronic timepiece comprising a timepiece circuit, a display for displaying time, an alarm for generating an alarm sound at an alarm time, a memory circuit for memorizing the alarm time and an alarm control circuit for controlling the tone quality and a sound volume of the alarm sound. The alarm control circuit includes externally operable switches of the timepiece which are operable for controlling the alarm sound and which are also operable for correcting time.

Abstract: A timepiece which permits freely adjusting the level of sounds produced therein and given out thereof. In this timepiece, the sounds produced in a mechanical unit contained in a timepiece body are conveyed to the outside of the timepiece via a sound level adjusting means by utilizing mechanical vibrations or vibrations of air.

Abstract: A touch sensitive device for controlling a function of a timepiece is formed with a condenser having a capacity independent of the area of the device touched. A conductive stem is fixed in a timepiece case and is electrically insulated from the case by a mounting member. A head is fixed on an end of the stem adjacent the outside of the timepiece to form one of the condenser electrodes. A thin layer of insulating material covers the outside of the head and forms the condenser dielectric. A layer of conductive material is fixed on a side of the dielectric material opposite the head and forms the second condenser electrode. When the second electrode is energized by the touch of the user, the entire second electrode is energized independent of the area touched by the user, giving the condenser a capacity independent of the area of the second electrode touched.

Abstract: An assembly comprising an escapement timepiece pallet anchor and its frame is disclosed, wherein the pallet anchor is in the form of one piece of plastics material having three arms and is rotatably mounted on the frame. The assembly comprises means for limiting the angle of rotation of the pallet anchor, which means include at least one auxiliary portion on the piece forming the pallet anchor and at least one part rigid with the frame disposed to cooperate with said auxiliary portion.

Abstract: An electrical pendulum clock comprising a clock movement having a driven shaft and a dummy pendulum driven from the shaft independently of the timekeeping function of the clock. The pendulum comprises a torsion spring with a vertical axis of twist and a pendulum body suspended at the lower end of the torsion spring. The torsion spring has a radial projection which undergoes pendulous travel with the pendulum under the drive from the shaft of the clock movement. For this purpose a first toothed element is driven in rotation by the shaft of the clock movement and a turnable element is loosely suspended for pendulum movement on the shaft. The turnable element loosely carries a second toothed element on a shaft extending parallel to the shaft of the clock movement, the second toothed element being in mesh with the first toothed element.

Abstract: An annular reverse-flow combustion chamber for gas turbine engines which includes an annular chamber formed between an outer casing of the combustion chamber and a flame tube with the annular chamber being supplied with preheated air from a heat exchanger. The preheated air is directed to the flame tube for combustion, cooling or other purposes. The flame tube includes a flame tube head of a double-walled construction so as to define a further annular chamber which communicates with an air bleed line at a discharge end of a compressor so that air is taken directly from the compressor and supplied to the further annular chamber. A vaporizer pipe member is disposed at the flame tube head with at least one of the walls of the double-walled flame tube head being welded to the vaporizer pipe member.

Abstract: The invention relates to a combustion chamber of a ramjet and booster rocket, which comprises an inner envelope provided with upstream lateral ports for the inlet of air and a downstream nozzle for ejecting the combustion gases, to allow functioning of the rocket at cruising speed; an outer envelope, concentric to the inner envelope and closed, with the exclusion of a single rear port for the ejection of the gases, to allow functioning of the rocket at launching speed; and separating means for separating from the combustion chamber at least a part of the outer envelope, at the end of the launching phase, in order to ensure the clearance of the upstream lateral ports of the inner envelope.

Abstract: A partial swirl augmentor for a turbofan engine having an annular duct for directing hot gases into the augmentor combustion chamber. Located within the combustion chamber is a piloted vee-gutter flameholder system which has a circumferential pilot located at the outer edge of the swirlng hot turbine exhaust gas stream. As a result thereof, the partial swirl augmentor can attain state-of-the art engine after burning thrust levels with an increased altitude blow-out limit.

Abstract: A cooling control system for a convergent-divergent gas turbine exhaust nozzle which permits automatic ducting of cooling air during the augmented mode of engine operation. The convergent flaps of the nozzle have longitudinal ducts embedded therein with a pair of openings near the aft extreme of each of the convergent flaps and openings located in the forward half of the convergent flaps. The convergent seals overlap the convergent flaps and are slideably mounted for positioning over the aft openings on the flaps. A positive pressure is generated under the convergent flap liner and seal liner when the convergent seal is opened to allow cooling air to be ducted through the flap. The positive pressure forces the convergent flap and seal liners up toward the center line of the nozzle.

Abstract: A power steering system has a pump, a steering gear and pressure and return passages. The pump does not include a cover member which conventionally provides space for the storage of excess fluid. The return passage has an expansible chamber included therein which accommodates the fluid volume change within the system resulting from fluid temperature changes thus permitting hermetic sealing of the system. An aspirator can also be included within the expansible chamber to improve the inlet pressure condition at the pump.

Abstract: A hydrokinetic torque converter transmission for multiplying torque delivered from a driving member to a driven member comprising a bladed impeller connected to the driving member, a bladed turbine connected to the driven member and a stator located between the flow exit section of the turbine and the flow entrance section of the impeller, said impeller comprising a main impeller blade section and an auxiliary impeller blade section, the latter being located radially outward with respect to the former, and a centrifugally operated clutch structure for connecting together for rotation in unison the auxiliary impeller blade section and the main impeller blade section at high impeller speeds and for disengaging them when the impeller speed is less than a predetermined value.

Abstract: A hydrodynamic control coupling having a toroidal working chamber defined by a primary bladed wheel connected with a driving motor and a secondary bladed wheel connected to the driven element; a draining device for draining working fluid from the working chamber; a filling pump supplies working fluid to the working chamber; a valve varies the filling flow to the working chamber; the valve is a flow divider comprised of two interconnected valves including respective valve elements mounted in tandem on a common shaft which is shiftable axially; each of the interconnected valves includes a respective valve seat; as one valve element is moved away from its valve seat; the other valve element is simultaneously moved toward its valve seat; at least one of the valve elements and its seat is tapered to an acute cone angle, with other conically tapered shapes also being disclosed for one or both of the valve element and/or valve seat; one valve chamber supplies working fluid to the working chamber; the other valve cha

Abstract: The inflow of fluid from a motor driven pump is divided into two flow streams at a flow rate ratio selectively adjusted through a manually actuated flow divider valve. The adjusted flow rate ratio is maintained constant by a pressure control device within two outflow conduits interconnected by secondary throttling branches to regulate pressure as a function of outflow rates.

Abstract: A control mechanism for controlling a reversible pump that selectively supplies fluid to two different motors forming separate functions includes a control lever pivoted about a fixed axis and having said pump connected thereto. A control console is located adjacent the control lever and cooperates therewith to define a plurality of distinct operating positions on opposite sides of a neutral position for said control lever. The control lever and control console also have releasable interlock means defining the neutral position for the control lever and the pump.

Abstract: A pressurized fluid supply for an auxiliary power steering system includes a regulator valve assembly controlling the output pressure of a fluid supply pump under the opposing influences of the pump discharge pressure and a signal feedback pressure from a fluid operated servomotor. An adjustable bias applied to the regulator valve assembly establishes a low idling discharge pressure for the pump while no steering action is being performed by the servomotor to which the pump is connected by a control valve biased to a flow blocking position.

Abstract: A drive train includes a hydrostatic transmission unit and a multiple speed range transmission unit arranged in series between a prime mover and a primary output shaft, variable displacement and torque transmitting capacity of the hydrostatic transmission unit being adjusted by hydraulic controls including a speed control valve for developing a differential pressure signal proportional to a desired rate of operation, a modulating valve for regulating the differential pressure signal corresponding to accelerating and decelerating operation of the transmission, a directional control valve for determining the direction of operation of the hydrostatic transmission unit, and a range selector valve for shifting the operating speed range of the multiple speed range transmission as the hydrostatic transmission approaches a limit of displacement, the displacement of the hydrostatic transmission being automatically reset in response to shifting of the multiple speed range transmission.

Abstract: A system for conversion of sea wave energy to useful energy comprising a water displacing member adapted to be at least in part submerged in the sea and mechanically secured to solid ground and provided with means to so control the movement of the water displacing member that it is locked relative to the ground during selected time periods of each cycle of such waves to which the water displacing member is subjected, for the purpose of thereby controlling the rotational movement of an electric generator through at least one fluid under controlled circulation within the water displacing member.

Abstract: The invention consists of a reversible differential temperature engine especially adapted to convert solar thermal energy into mechanical energy in the absence of gravity in space. This is achieved by reversible means which allow the alternate function of each chamber of the differential temperature engine as an evaporator and condensor chamber.

Abstract: A supercharged internal combustion engine has a turbo supercharger mounted on an exhaust pipe so that a turbine of the supercharger is driven by engine exhaust gases to drive a blower for the compression of engine intake air. A bypass exhaust pipe is connected to the exhaust pipe at a point upstream of the supercharger and extends in bypassing relationship to the supercharger. A valve is provided in the exhaust system at the above-mentioned point to control the exhaust gas flow into and through the exhaust pipe and the bypass exhaust pipe, respectively.

Abstract: A governing system for use in a sliding-pressure type turbine power plant, in which a target level for a main steam pressure is automatically set in response to a load demand, while two or more regulating valves are controlled according to a valve-positioning signal so as to eliminate a deviation of an actual load from a load demand, whereupon a target level for the main steam pressure is corrected, based on the diviation of the actual opening from the target opening of each regulating valve, whereby the main pressure generated in a boiler is regulated to a corrected target level. This governing system includes a valve driving mechanism functioning such that all regulating valves be opened at a time in a range up to a given opening, and thereafter the regulating valves be opened one after another, commensurate to the magnitude of a control signal, after entering a range beyond the aforenoted given opening.

Abstract: A method and apparatus for cooling internal environment air using energy from the sun. In accordance with the method of the invention, internal environment ("inside") air is circulated over a desiccant and thereby dried. The dried air, which takes on heat as a consequence of the drying operation, is relatively cooled by performing a heat exchange operation with external environment ("outside") air. At this stage, the dried inside air is at a temperature which is only slightly above the temperature of the outside air. Moisture is then added to the dried inside air which had been subjected to the heat exchange operation. The evaporation of the moisture into the dried air restores it to a desired relative humidity and effects a cooling of the air which is then returned to the internal environment. The operation of drying the inside air will, after a time, render the desiccant too wet to perform efficiently. The desiccant is then heated with solar energy so as to remove moisture from the desiccant.

Abstract: Small amounts of low boiling liquefied gas are metered in an apparatus which has a pipeline exiting into a hollow sintered metal body mounted within an inner container with the container having a drain hole at its bottom for liquefied gas and at least one discharge opening at its upper portion for evaporated gas; the inner container is surrounded by an insulated outer container with a space therebetween and with a gas discharge opening in the outer container beneath the drain hole for liquefied gas.