Abstract: An automatic system for changing the electricity supply source on a mobile unit with an operating arm the system comprising a station for storing the electricity supply sources, means for prearranged positioning of the mobile unit in relation to the station, and means for activating the arm for picking up the rundown electricity supply source and replacing it with a new electricity supply source withdrawn from the storage station.

Abstract: The electrode wear rate is determined by using two detectors and a clock to measure the time taken for the voltage across the gap to drop between two preset values which are chosen to measure the speed in which the voltage drops from the no load voltage to the cutting voltage. This value of time is used by an arithmetic circuit which uses an exponential equation to determine the amount of material removed in a single discharge. A second arithmetic circuit is used to sum up the amount of electrode wear taking place and to supply the pulse generator with a control signal for adjusting the pulse generator as a function of the electrode wear rate.

Abstract: The rethreading mechanism of a travelling wire EDM apparatus has a scrap wire disposal mechanism for disposing of the unusable length of electrode wire, or scrap, remaining in the machining zone after accidental rupture of the wire. The wire scrap disposal mechanism takes the form of a shaft having a bifurcated end defining tines between which the wire passes. Upon accidental rupture of the wire, the bifurcated shaft is automatically set in rotation such as to wind the length of wire between the shaft bifurcated end and the point of rupture of the wire in a bundle around the bifurcated end, and simultaneously exert a pull on a length of unused wire, which is also caused to wind around the shaft bifurcated end, such as to straighten the wire upstream of the bifurcated shaft. After cutting off the wire, the bundle of scrap wire around the bifurcated shaft is pushed off such as to fall in a disposal chute.

Abstract: A lubricating oil input system includes a joiner, a first ignition advance vacuum tube connected between the joiner and distributor of an internal combustion engine, a second ignition advance vacuum tube connected between the joiner and carburetor of the engine, a connecting tube connected between the joiner and an oil tank which contains lubricating oil and cleaner. The system further includes a small tube disposed within the connecting tube, joiner and second ignition advance vacuum tube; a filter means disposed at the joint region of the oil tank and connecting tube; and a returning means connected to the first ignition advance vacuum tube abutting against the joiner, so that the lubricating oil is directed from the oil tank through the lubricating oil input system into the carburetor to be mixed with gasoline.

Abstract: A low cost, integrated, aircraft fuel management system. A system control unit receives engine variable signals and provides a signal to a motor control unit which thereby controls a variable speed motor. The motor drives a positive displacement pump which delivers and meters fuel to a slinger type turbine engine capable of handling slurry fuels. In a preferred embodiment, compressor discharge pressure (CDP) is supplied to the airframe fuel reservoir thereby pressurizing the fuel supply and minimizing the power requirements of the motor driving the fuel pump.

Abstract: A rodless cylinder having an elongated cylinder and a fluid actuated piston longitudinally reciprocally mounted in the cylinder and an actuator mechanically connected to the piston. A first cable or a slot seal extends from one end of the actuator and to one end of the cylinder while a second cable or seal extends from the other end of the actuator and to the other end of the cylinder. An elongated flexible strip has one end attached to the actuator and its other end mounted to a take up reel so that the strip overlies and protects the cable or seal against sparks, caustic chemicals, and the like.

Abstract: Image scanning process for detecting set forms, the main characteristic of the process being that it includes a first stage consisting in analysing signals representing points on the said image, in selecting first points defining areas in which the variation in contrast exceeds a given threshold, and in determining the direction of the tangent line relative to each of the said first points; a second stage consisting in detecting whether, for each of the said first points there exist other first points lying on at least one line having a set length and angle in relation to the direction of the line tangent with the point in question and in projecting onto said tangent line if the direction of the said other point lying on the said line has a second set angle in relation to said tangent line; a third stage consisting in memorizing and accumulating the number of the said projections relative to the said projection points and in extracting the said projection points whose accumulated value exceeds a given number

Abstract: A novel turbine inlet nozzle assembly is provided for use with a gas turbine engine and includes unique nozzle cooling means. The turbine inlet nozzle of the present invention comprises an inner annular shroud, an outer annular shroud coaxial with and spaced radially outwardly from the inner shroud and a plurality of circumferentially spaced vanes extending between the shrouds. The shrouds and the vanes, moreover, are of integral construction with each other and, preferably, each vane has a hollow interior. An annular impingement plate is fixedly secured about each axial end to the outer periphery of the outer shroud while, similarly, a second impingement plate is secured at each axial end to the inner periphery of the inner shroud. Moreover, the impingement plates include a plurality of holes formed therethrough and through which a portion of the turbine compressor output is bled to cool the inner and outer shrouds.

Abstract: There is disclosed an improved retainer for an automative floor mat generally having an upper bristled surface and a lower bristled surface divided by a planar surface. The bristles are removed from the upper and/or lower surface where the retainer is to contact the heel pad of an automative carpet. A non-slip surface may be provided on one or both sides of the retainer where the bristles have been removed.

Abstract: A dental pin having a threaded portion for insertion into a tooth is formed with a shank which has portions inclined relative to the threaded portion and to each other. The threaded portion and shank are of integral construction and the shank is of zig-zag shape.A holder for the pin can take several forms each with a bore for receiving the shank releasably but in driving engagement with the holder.The holder may take a form suitable for use with a dental handpiece or for manual insertion of the pin.The invention also provides a holder with a ratchet mechanism for manual insertion of the pin.

Abstract: A torque meter is provided for use in conjunction with a layshaft having a forward and rear end and which is rotatably mounted in a housing. The layshaft is axially movable with respect to the housing between a forward and a retracted position while a gearing arrangement in mesh with the layshaft urges the layshaft towards its forward position with a force proportional to the shaft torque. The torque meter comprises a body secured to the housing adjacent the front end of the layshaft which forms a chamber open to the front end of the layshaft while a piston is axially slidably mounted within the chamber. The chamber is pressurized with a fluid, such as oil, which urges the piston against the front end of the layshaft with a force proportional to the pressure so that the piston balances the layshaft against the axial force imposed by the engine. A fluid pressure gauge determines the pressure within the chamber which varies proportionately with the layshaft torque.

Abstract: In a travelling wire EDM apparatus, the electrode wire is divided into a plurality of sectors disposed along the active length of the electrode wire, and the numbers of electrical discharges occurring in each of the sectors from a predetermined starting time is detected. Those numbers are compared to reference values to determine the difference between the numbers of detected electrical discharges and corresponding reference values. In its simplest form, all the reference values are equal to the average value of the number of electrical discharges per sector. If one or more of the differences is higher than a predetermined threshold, an adequate modification of the machining parameters is effected as a function of the difference.

Abstract: A game includes an indicator board having a pointer pivotally supported over a first dial face divided into sectors, each sector having indicia to identify an integer therein. The board also includes a pointer pivotally mounted over a second dial face having at least twenty six sectors, each sector including indicia to identify a letter of the alphabet. In addition, letter indicia members corresponding to the letters identified in the second dial piece are manipulated by a player to form abbreviations, acronyms, or initials. The method of practicing the game includes randomly selecting an integer on the first dial face to be used to determine the number of letters to be used during a player's turn, randomly selecting alphabetic letters on the second dial face to determine the particular letters to be used during a player's turn, and selecting corresponding indicia members which are then arranged and juxtapositioned to make abbreviations, acronyms or initials recognizable to the player.

Abstract: A printing device includes a plate carrying cylinder in contact with a printing transfer cylinder two or three times its circumference. Two pressure cylinders are movable between a withdrawn position and a use position where they maintain a web in printing contact with the printing transfer cylinder at two distinct positions, for forming two impressions on the web during one cycle. A method for printing in accordance with the device is also disclosed.

Abstract: The disclosed invention provides a container made of paper and comprising an end wall opposite an opening, right and left side walls extending between the end wall and the opening, and upper and lower side walls extending between the end wall and the opening. Each of the side walls has at least a double layer construction consisting of a bend part and a foldback part bonded together. Cut edges of paper are disposed inwardly of the container away from the opening.

Abstract: A portable unloader for a truck bed includes a gate entrained on a pair of cables so that it can be pivoted to and from a first raised position in which it is inclined with respect to the truck bed as it moves toward the rear of the truck bed, and a second position in which it lies substantially parallel to the truck bed as it moves through the load along the truck bed. In one form of the invention, the cables pass through slots near the lower edge of the plate, and the gate is secured near its opposite edge by restraining chains attached to the cable to limit the angle at which the gate is inclined with respect to the truck bed. Such a gate can also include a pair of wedge-shaped runners for initially orienting the gate at a slight angle to the truck bed so that a portion of the load of granular material is forced under the gate to lift it to its raised position as movement toward the rear of the truck is initiated.

Abstract: Load transporting apparatus enables loads to be transported on and off vehicles. The apparatus requires a loading platform to be located adjacent a load receiving surface of a vehicle. The platform and the surface each have channel shaped tracks which are aligned with one another. An inflatable tube on which is carried a plate is located in the base of the channel and skates are arranged to be moved along the plates when the tube is inflated. Thus the skates can move along the channels supporting a load when a transfer to or from the vehicle is required. When in position deflation of the tube causes the skates to lower and the load rests on the associated surface. In the deflated position the skates can be moved along the tracks out of engagement with the load. The plates have a central depression to ensure that the skates remain centrally located in the tracks.