Abstract: A first unit positions and then rotates an apple with a randomly oriented core. Rotation is stopped when any one of a series of aligned probes enters into one of the indents in the core of the apple. A second unit with axis of rotation at 90 degrees from the axis of rotation of the first unit takes and holds the positioned apple, and then rotates it. Rotation is stopped when a positioned probe enters into the indent in the core to align the core of the apple in the desired position to provide apple core alignment.

Abstract: A pair of specially reinforced skin-spar joints in combination with a honeycomb core are used to build up a wing spar for a composite airplane wing. A series of contoured mandrels with a covering of fuel resistant material and a wrapped reinforced plastic are aligned one above the other. The wing spar materials are placed between the mandrels, honeycomb core is located alongside as well as wing skins to form a wing buildup. The buildup is placed in a mold, pressure applied to each mandrel forcing all the parts together, and the buildup heated to cure the resins and form a composite wing structure.

Abstract: A pair of support members are slideably inserted into a rectangular shaped open ended housing from opposite ends of the housing. Each support member has a downwardly extending projection to form facing cutting surfaces. A resilient member presses the support members toward each other forming a ski sharpener. When the sharpener is placed against and moved along a ski the cutting surfaces sharpen the sides of the ski.

Abstract: A shaped support beam is joined to and extends laterally across a landing gear door to provide support and to hold a retracted airplane landing gear in position when the landing gear door is closed. Pivotable linkage, extending between airplane structure and the shaped support beam, press against the landing gear to hold the gear in the retracted position with the door latched, and to be pressed against to move an unlatched door aside to permit extension of the landing gear into operating position.

Abstract: A pair of specially reinforced skin-spar joints in combination with a honeycomb core are used to build up a wing spar for a composite airplane wing. A series of contoured mandrels with a covering of fuel resistant material and a wrapped reinforced plastic are aligned one above the other. The wing spar materials are placed between the mandrels, honeycomb core is located alongside as well as wing skins to form a wing buildup. The buildup is placed in a mold, pressure applied to each mandrel forcing all the parts together, and the buildup heated to cure the resins and form a composite wing structure.

Abstract: A four bar linkage, between a hinge carriage segment and a translating door segment, of an outward opening overhead rotation plug type aircraft door, defines the relative movement between the two segments. A door handle actuates linkages that extend between the two segments to power the relative movement. When the handle is in either the down and the door locked position, or in the up and unlocked ready for outward rotation position, the linkage is overcenter so that the handle remains in position. A safety link extends between the two segments to provide fail safe locking at either handle position.

Abstract: A control unit for a squeeze type fluid container is attached to a tube extending from inside the container to the outside. The control unit has a check valve resiliently held to open in response to pressure inside the container; which permits fluid to flow through the control unit and out the tube. The control valve has a second check valve positioned inside the first check valve casing, and resiliently held to open in response to a negative pressure inside the container to permit fluid to flow from the tube through the control unit and back into the container.

Abstract: A high strength braided thermosetting resin cord acts as a core for an escape line. A series of knobs of a foamed resin are threaded onto the core at spaced intervals with a second series of smaller knobs of a foamed resin located between each adjacent larger knobs. Each of the knobs are bonded with a thermosetting resin to the core. A high strength thermosetting resin is braided over the knobs and core, and one end of the cord is secured to a support member of an airplane to provide an escape line.

Abstract: A set of two cutting units are located on the end of a tool to be rotated. The cutting units are radially aligned and on a bevel. Each blade on each cutting unit has a radial rake of at least 60 degrees, a clearance angle, and serrations cut at an angle normal to the cutting edge to provide a series of points extending along that cutting edge.

Abstract: An index bar is secured to a machined and leveled surface of a base. One side of the bar is machined to be contacted and to act as a buttock plane. The bar has a series of in line holes positioned for lengthwise indexing. A second index bar, secured to the base, has a series of matching holes and the bar is positioned parallel to the buttock plane. The index bars are used for alignment for scribing header locations on the base. Headers, contoured with respect to the base surface and with respect to the buttock plane, are formed and while on the scribed line and while contacting the base and the buttock plane surface, are secured to the base. The secured headers are vertically aligned and held in that position to provide the critical lines for forming a master model.

Abstract: An elongated flat arm is joined at one end to the outer side of one of a pair of spaced apart legs, with that leg extending at about 90 degrees to the arm. The legs are joined together at one end, and are open ended at the other end. Inwardly directed cooperating projections are located adjacent the open end. A latch having a knobbed end is joined intermediate the length of the joined leg, and that latch extends towards and works in combination with an opening through the opposite leg to hold the legs together.

Abstract: A laminate of a plurality of thermosetting resin films are joined together with a thermosetting resin to impart a peel strength between films of about 1 to 3 pounds per inch of width.

Abstract: A guide bar reciprocally movable at an inclined angle accepts a fastener in an upper leg of the guide bar when in a retracted position, moves that fastener past a stationary member and drops it onto a lower leg of the guide bar when in the extended position. A movable pin contacts the lower end of the fastener and acts as a reference when that pin is in the extended position. The guide bar when it is retracted is at a distance less than the length of the fastener from the reference point. If the fastener, which has a shallow recess on one end and a deep recess on the other end, has the shallow recessed end down that end will drop down when the pin is retracted. If the deep recessed end is down the fastener will rotate around the pin and drop the shallow recessed end down.

Abstract: A cylinder is rotatably located in a head of a wrench. Ratchet teeth located in a groove around the periphery of the cylinder acts in conjunction with a pawl to secure the cylinder in position and to provide ratchet action. An insert with axially located socket rotates with the cylinder to act on a fastener.

Abstract: A pair of boots each having an outer shell and an inner resilient liner are each contoured to fit at the juncture between a person's foot and leg. The shell and liner of each contoured boot have extended ends that are folded over each other, and secured in the folded position to the person's leg. A support member, attached to the front of the shell, in turn provides for inverted suspension of the person from an independent support member, and a loop attached to the front of the shell extends to contact the back of the person's leg to give torque free suspension to a person wearing the boots.

Abstract: A sliding block with a female die acts in conjunction with a four bar linkage mounted block with a male die to punch indexing holes in a moving metal strip. The block with male die continually seeks to rotate, but is held in position by the sliding block. The sliding block is programmed to periodically move forward at the speed of the moving metal strip and to return to starting position. This frees the male die to rotate to punch out the hole, and to continue to rotate back into the starting position to be held by the returned sliding block.

Abstract: A constant force mechanical spring and a varying force hydraulic actuator combine to provide feel to a pilot of his movement of an airplane's elevators. A constant force bias spring works against the hydraulic actuator to reduce the actuators effectiveness to nearly zero at minimum feel force conditions.

Abstract: A torque measuring device has a torsion bar with effective length adjustable to show different energy absorption capability. One end of the torsion bar's effective length is held stationary while a torque from a torque controlled winding tool is applied to the other end through a one direction of rotation clutch. The actual torque applied to the torsion bar is measured after which the torque on the bar is released.

Abstract: Flat metal stock is contoured into a shaped blank prior to being superplastically formed into a finished part. The stock is shaped in steps.

Abstract: A composite structure window belt has a roll of the lined reinforced plastic window frames set between honeycomb core and covered top and bottom with a reinforced plastic cover. The window frames have built-in reinforcements to accept fasteners for securing windows within the diamond-shaped openings.