Abstract: A visual enhancement marking arrangement for a receiver aircraft having a body portion and a fuel receiving receptacle on the body portion for receiving the outer end of a refueling boom of a tanker aircraft, the marking arrangement increasing visual and depth perception of an observer in a tanker aircraft and including inner converging runway lines converging toward the fuel receiving receptacle, outer converging runway lines substantially parallel to the inner converging runway lines, substantially parallel comparator lines between the inner converging runway lines spaced apart about the width of the fuel receiving receptacle and in alignment therewith, milestone marker lines perpendicular to the comparator lines and extending between the inner runway lines, gradient density contour lines located on opposite sides of the fuel receiving receptacle, fuel receptacle outline markings, stabilizer vane markings, and danger marking lines delineating critical "do not contact" areas including windscreen outline mark

Abstract: Disclosed is a cleaning cartridge for cleaning the magnetic heads and the scraper of computer tape drives that use tape cartridges and more particularly streamer and start-stop drives. This cleaning cartridge can be inserted into the tape drive and can simultaneously clean the heads and the scraper by rubbing a cleaning pad against the heads and the scraper in a direction that is perpendicular to the tape path. This pad is made from an absorbent material that can be saturated with a cleaning fluid, so the pad will collect foreign particles when it is rubbed against the heads. The cartridge can be manually operated or it can engage the drive mechanism of the tape drive.

Abstract: An actuator control system is disclosed using fluid dispensing means to selectively add or remove fluid from a closed actuator system, whereby the movement of the actuator is volume rather than pressure responsive.

Abstract: Disclosed is a bellows control valve with means to pressurize the bellows chamber to very high pressure without creating a significant detrimental differential pressure across the bellows.

Abstract: Air flow guide members at each end of the cargo carrying structure of an open top gondola type railway car, together with rounded transition or corner surfaces on the exterior of the car and aerodynamically shaped and oriented cross braces within the car serve to reduce aerodynamic drag on the car as it is moved. Additionally, to further enhance the energy efficiency of the car, the cargo carrying structure is formed predominately of a lightweight weldable metal, such as an aluminum alloy, and the side support members are placed on the interior wall of each side to provide a smooth, minimized air flow resistant side surface.

Abstract: A method and system for treating a floppy disk with fluid is described. The system comprises a mechanism for grasping the floppy disk about its center and rotating it, fluid absorbing pads which are movable into and out of contact with the magnetic surfaces of the floppy disk through the read/write openings in the floppy disk envelope and a dispensing source for providing fluid to the pads. In a preferred embodiment, electrical signals control the sequence of operations whereby the floppy disk is grasped by a clutch and spindle mechansim and rotated, fluid is dispensed to the pads, and the pads are moved into contact with the surfaces of the floppy disk to treat the disk. Periodic treatment of a floppy disk with a fluid containing a lubricant enhances the reliability and increases the life of the floppy disk.

Abstract: A method of fabricating a thin magnetic film having improved magnetoresistive readout characteristics as a binary memory device is disclosed. The film is initially formed from a metal vapor as a series of discrete grains upon a substrate surface that is heated to approximately 300.degree. C. Upon continued growth of the film, the grains merge at their boundaries forming a continuous thin film, the grain boundary heights of which, e.g., 1000 .ANG., are substantially greater than the thickness, e.g., 320 .ANG., of the eventual thin magnetizable film. The thin film is then rotated while being ion milled at an oblique angle to a substantially uniform film thickness of e.g. 320 .ANG..

Abstract: A container for game board pieces and other equipment, such as dice and cards, has a carrying and storing handle, and is provided with a partially open area on one side thereof. A flat member is fastened by hinges to the container and folds forward to at least partially close the open area of the container. There is enough space between this hinged flat member and the container so that the game board will fit between these two parts. The game board is held in place as a result of pins extending from the container through the game board and making frictional engagement with the holes in the flat hinged member. The flat hinged member may alternatively be held in assembly with the game board by straps, and either the pins or straps may be employed to hold the flat hinged member over the open area of the container when it is desired to store the game pieces without securing the container to the game board.

Abstract: A bimetal snap disc thermostat is disclosed which is structured for automated assembly. Such thermostat includes a body with contact supports molded therein in a manner providing sufficient strength so that terminals can be riveted onto the contact supports after assembly. The body and contact support subassembly is structured so that it is symmetrical on opposite sides of a central axis. A disc cup is provided with axial and radial surfaces which accurately locate the disc during and after assembly. Also disclosed is a method of gaging and calibrating the thermostat automatically. Calibration of the spring force of the movable contact is accomplished by sensing the force in a given position and subsequently deforming the spring until a predetermined force exists in such predetermined position. Gaging is accomplished by deforming a projection from the movable contact arm until a predetermined uniform spacing is established between such projection and a gaging surface.

Abstract: Air flow guide members at each end of the cargo carrying structure of an open top gondola type railway car, together with rounded transition or corner surfaces on the exterior of the car and aerodynamically shaped and oriented cross braces within the car serve to reduce aerodynamic drag on the car as it is moved. Additionally, to further enhance the energy efficiency of the car, the cargo carrying structure is formed predominately of a light weight weldable metal, such as an aluminum alloy, and the side support members are placed on the interior wall of each side to provide a smooth, minimized air flow resistant side surface.

Abstract: A cleaning system for flexible disk equipment or the like. The system includes a cleaning disk made of an absorbent and porous fibrous material which has an area substantially saturated with a liquid cleaning solution. The cleaning disk is rotatably supported within a flat jacket. The jacket includes opposed openings on either side so as to expose a portion of the cleaning disk to enable the disk to come into contact with a magnetic head or heads. At least one of the openings is enlarged to expose a relatively large portion of the surface of the cleaning disk, so as to facilitate complete saturation of an area of the cleaning disk with a liquid cleaning solution while leaving a portion of the cleaning disk dry. The jacket containing the disk is placed within a flexible disk system which rotates the saturated disk, thus causing the magnetic head(s) to be cleaned in a non-abrasive fashion with a wet, dry, wet action. An improved jacket for use with a thickened cleaning disk is also disclosed.

Abstract: A simple and inexpensive apparatus for treating a floppy disk with conditioning fluid in order to clean, lubricate and destaticize the floppy disk is described. The apparatus comprises a means for grasping the floppy disk about its center and rotating it, fluid absorbing pads which are moveable into and out of contact with the magnetic surfaces of the floppy disk through the read/write opening in the floppy disk envelope by mechanical means and a means for dispensing fluid to the pads. In one preferred embodiment, the mechanical rotation of a lever causes the floppy disk to be grasped and released through the cooperation of an axial cam and a pin riding on the cam. Rotation of the lever also moves the pads into and out of contact with the floppy disk. In a second preferred embodiment, a timer provided with a gear wheel controls an axial cam for grasping and releasing the floppy disk and a radial cam which moves the pads into and out of contact with the floppy disk.

Abstract: A damper for damping the vibration of blades in a turbine rotor including a plate having at least one bumper extending outwardly from one side of the plate to be positioned in recesses on the underside of the platforms on adjacent blades for locating the bumper circumferentially and with a tab extending inwardly from the plate on the side opposite to the bumper to hold the damper in radial position. A wear strip extending upwardly from the plate near its periphery serves as a seal to minimize gas leakage past the damper.

Abstract: An edge for frontal engagement with air flow as occurs when vehicles are moving in an air environment. The edge is elongate and intended to wrap around an existing corner where two substantially planar surfaces intersect, one of the planar surfaces being a front surface and the other planar surface being a rearwardly receding flanking surface such as a top surface or a side surface of a vehicle. The edge rises abruptly from the front plane and moves forwardly and outwardly in a convex arc to a point of abrupt inflection outside of the flanking plane and adjacent the front plane as extended through the flanking plane. The discontinuity or inflection is a change from convexity to concavity formed by alternate concavity and convexity and progressing generally toward faired contact with the flank plane.

Abstract: An improved magnetic memory system in which binary data are stored as cross-tie, Bloch-line pairs, which are serially propagated downstream along a cross-tie wall in a magnetizable layer by appropriate drive fields. The magnetizable layer is configured into a data track whose two opposing edges are formed into patterns of asymmetrically shaped edges which form successive narrow portions with wide portions therebetween, and which are formed about the geometric centerline of the data track. The improvement comprises forming a plurality of energy wells along the geometric centerline of the data track and, transverse to the geometric centerline of the data track in the areas of the narrow portions where the cross-ties are stored but not in the areas of the geometric centerline.

Abstract: An improved magnetic memory system in which binary data are stored as cross-tie, Bloch-line pairs, which are serially propagated downstream along a cross-tie wall and a magnetizable layer by appropriate drive fields. The magnetizable layer is configured into a data track whose two mirror-image, opposing edges are formed into patterns of asymmetrically shaped edges which form successive narrow portions, or necks, with wide portions therebetween, and which shaped edges are formed about the geometric central line of the data track. The cross-ties are structured in the data track by opposite-edge necks at which the ends of the cross-tie are magnetically stable.

Abstract: Color-forming materials or their precursors present in crude 1,4-butanediol are reduced more efficiently by subjecting the crude 1,4-butanediol to distillation under conditions wherein substantially all the water present in the crude 1,4-butanediol is first removed and then the 1,4-butanediol with reduced water content is further distilled to remove the color-forming materials.

Abstract: Disclosed is a cleaning system for flexible disk equipment or the like. The system includes a cleaning disk made of an absorbent and porous fibrous material which has an area substantially saturated with a liquid cleaning solution. The cleaning disk is rotatably supported within a flat jacket. The jacket includes opposed openings on either side so as to expose a portion of the cleaning disk to enable the disk to come into contact with a magnetic head or heads and its associated pressure pad if one is used. At least one of the openings is enlarged to expose a relatively large portion of the surface of the cleaning disk, so as to facilitate complete saturation of an area of the cleaning disk with a liquid cleaning solution while leaving a portion of the cleaning disk dry. The jacket containing the disk is placed within a flexible disk system which rotates the saturated disk, thus causing the magnetic head(s) and the pressure pad to be cleaned in a non-abrasive fashion with a wet, dry, wet action.

Abstract: A cleaning system for flexible disk equipment or the like. The system includes a cleaning disk made of an absorbent and porous fibrous material which has an area substantially saturated with a liquid cleaning solution. The cleaning disk is rotatably supported within a flat jacket. The jacket includes opposed openings on either side so as to expose a portion of the cleaning disk to enable the disk to come into contact with a magnetic head or heads. At least one of the openings is enlarged to expose a relatively large portion of the surface of the cleaning disk, so as to facilitate complete saturation of an area of the cleaning disk with a liquid cleaning solution while leaving a portion of the cleaning disk dry. The jacket containing the disk is placed within a flexible disk system which rotates the saturated disk, thus causing the magnetic head(s) to be cleaned in a non-abrasive fashion with a wet, dry, wet action. An improved jacket for use with a thickened cleaning disk is also disclosed.