Abstract: A no-back mechanism including a rotatable screw shaft 16, rotatable drive element 70 on the screw shaft 16, a limited lost motion connection 72 between the screw shaft 16 and the drive element 70, a thrust plate 28 on the screw shaft 16, first and second friction discs 30, 32 sandwiching the thrust plate 28 and being journaled by bearings 38, 40 for rotation with the thrust plate 28, first and second one way clutches 54, 56 respectively associated with the first and second friction discs 30, 32 for respectively allowing the first friction disc 30 to rotate in one direction but not the other and for allowing the second friction disc 32 to rotate in the other direction but not in the first direction, a ratchet ring 86, 88 surrounding the screw shaft 16, first and second oppositely directed pawls 104, 106 carried by the screw shaft 16 and engageable with the ratchet ring 86, 88 for preventing relative motion between the screw shaft 16 and the ratchet ring 86, 88 in the direction the associated pawl 104, 106 is d

Abstract: A self-locking retention system is provided for a composite rotor blade supported on a rotor hub. A radially extending, stud-like retention member is provided on the rotor hub. A composite thickness projects radially inwardly from the rotor blade and substantially surrounds the retention member. The composite thickness is woven in a pattern which grips the retention member in response to outward forces applied to the rotor blade and the woven composite thickness.

Abstract: A heat exchanger is illustrated in the form of a pair of juxtaposed chambers defining a first flow path for passing a heated fluid therethrough and a second flow path for passing a cooling medium therethrough. A heat exchanging structure extends between the first and second flow paths in communication therewith. The heat exchanging structure includes at least one composite of thermally conductive fibrous material laid up unidirectionally in a direction between the flow paths for transferring heat from the heated fluid in the first flow path for absorption by the cooling medium in the second flow path.

Abstract: A thermally self-regulating elastomeric composition and heating element made therefrom. The composition includes a body of elastomeric material in which is distributed electrically conductive particulate material, such as carbon black. Short fibers are also distributed in the elastomeric matrix. In the disclosed invention, the short fibers are present in the amount of approximately 0.5 to 20 volume percent. In one alternate form, the matrix is foamed. Different arrangements of the electrodes in electrical conductive association with the thermally self-regulating elastomeric body are disclosed. Preferred proportions and characteristics of the particulate conductive material and short fibers providing optimum thermally self-regulating characteristics of the composition are disclosed.

Abstract: Leakage under pressure of fluid through the interface of a filter and a filter head or cover casting during removal of the filter is avoided by the use of a stepped gasket at the interface of the filter and the cover casting. The stepped gasket has both axially facing and radially facing sealing surfaces with the latter serving to maintain a seal at the interface over an extended interval during the removal process, which interval is sufficient to enlarge the volume of the system to eliminate any pressure differential from the interior of the system to the ambient.

Abstract: A toothed belt construction having a tooth cover fabric providing extended useful life of the belt. The cover fabric includes waft fibers extending longitudinally of the belt, having a toughness of at least approximately 30 where the toughness is a function of the square root of the elongation of the weft yarns at break and the strength of the west yarns at break in units of grams per denier. The elongation at break is preferably in the range of approximately 20 to 45%. The strength of the weft yarns at break is preferably at least approximately 6.0 grams per densier. Woolly processed yarns of polyamide fibers have been found to be particularly advantageous in the disclosed construction.

Abstract: An improvement in a drawer of the type having a bottom wall and a peripheral wall structure extending upwardly from the bottom wall and defining in conjunction therewith a storage space. The peripheral wall structure has a front wall, a rear wall and first and second laterally spaced side walls, each extending between the front and rear walls. The improvement resides in each of the side walls being a single piece and having an integrally formed guide slot for cooperation with spaced elements on a cabinet with which the drawers are associated. The spaced elements move in the slots and support and guide sliding movement of the drawer. In a preferred form, each of the guide slots has a laterally opening, U-shape in cross section and the guide slots on each drawer open laterally away from each other. Preferably, the drawer is used in combination with a cabinet bounding a storage space and having an opening in its front wall to permit selective movement of the drawer into and out of the space.

Abstract: Unequal loading in multiple load path transmissions having independent gear trains 18, 20, interconnecting an input and an output shaft 12 and 14, respectively, is avoided through the use of a torsionally compliant gear 22 located in each gear train 18 and 20. Each torsionally compliant gear 22 includes a hub 40 and a ring 46 having external gear teeth 48 about the hub 40 in concentric spaced relation. A body 50 of elastomeric material is disposed between the hub 40 and the ring 46 and spring fingers 68 carried by the ring 46 at least somewhat radially extend toward the hub 40. Stops 84 are carried by the hub 40 and are positioned to be normally spaced from the spring fingers 68 when low loads are transmitted by the gear and to engage the spring fingers 68 when predetermined higher loads are to be transmitted by the gear.

Abstract: An inductive coupled power system has a transmission circuit with a dual primary comprising two conductor loops. First segments of the loops extend through an area served by the system adjacent each other and second segments of the loops extend through the area one on either side of the adjacent first segments. A small loop configuration minimizes the stray magnetic field. A secondary pickup assembly has a U-shaped core with two legs which embrace the first segments of the two loops and a core element adjacent the first loop segments is positioned between the ends of the legs. Each of the power circuits of a plurality of loads includes a shunt regulator.

Abstract: A commutator alignment fixture includes a cylindrical bore having a plurality of axial circumferentially spaced blades extending inward from a side wall thereof. The circumferential spacing of the blades is determined according to the circumferential spacing of longitudinally extending, circumferentially spaced slots in a commutator wherein the alignment fixture blades coact with the commutator slot to axially slidably support the commutator in known circumferential orientation to the armature winding and core location when the commutator assembly is press-fit onto an armature shaft so that the commutator slots are in circumferential orientation with respect to the slots on the armature.

Abstract: A family of zero insertion force sockets for single and double sided circuit boards with a common stamped planar contact. The sockets are molded with common mold parts. The planar contact has a base with first and second spaced apart and generally parallel planar beam sections extending therefrom. The ends of the beam sections remote from the base are joined and form a contact surface.

Abstract: An improved alternating current machine having interdispersed armature windings is disclosed. The AC machine comprises an armature core having a plurality of generally longitudinal slots and a plurality of winding groups. Each of the winding groups comprises a plurality of one-turn coil windings which are series connected to electrically adjacent windings of the winding group. Each winding has two generally parallel side portions disposed in non-adjacent ones of the slots. The side portions are joined at one end by an end turn which extends axially outward from one end of the armature core and each of the side portions have an end connection extending a distance axially outward from the other end of the armature core for connecting to a respective electrically adjacent end connection of its electrically adjacent winding. The winding groups are interdispersed about the armature core such that there are a plurality of fixed distances between the electrically adjacent windings.

Abstract: A CD jukebox display unit is disclosed for displaying the program information on CD covers. The unit includes a housing adapted for mounting to a jukebox and having a transparent front portion. A plurality of frames adapted to support a compact disc cover are supported within the housing for pivoting about spaced and substantially parallel axes slanted rearwardly in the rear of the housing. A horizontal track is provided adjacent the housing front portion and supports a slide member which carries a knob biased forwardly therefrom. A finger is secured to the knob and projects rearwardly therefrom so that when the knob is pushed rearwardly, the finger engages a selected one of the tabs provided on each of the support frames.

Abstract: The invention relates to a wiper arm assembly for motor vehicles, comprising an oscillating mounting head (1), a rod (2) rigidly secured to the mounting head (1), a slidable element (3) pivotally (12) secured to a channel (4) and arm extension (7) and capable of sliding on said rod (2). Inside the channel (4) spring means are provided which are capable of biasing the arm extension (7) towards the surface to be wiped. A stationary bar (8) is rigidly attached to the vehicle body and a movable bar (9) is pivotally secured (10) to the stationary bar (8) at one of its ends and pivotally secured (11) to the slidable element (3) at the other of its ends. When the mounting head (1) and said rod (2) are oscillating the movable bar (9) oscillates too and imparts a back and forth movement to the slidable element (3), to the channel (4) and to the arm extension ( 7). A radial movement is thus superimposed on the oscillating movement.

Abstract: An environmental control system for affording quick attachment and disconnection of a thermal control unit with respect to an aircraft pod or other like vehicular substructure. A complementary interengaging mechanism is provided between the thermal control unit and the aircraft pod for properly positioning the control unit with respect to the pod. A complementary interengaging locking mechanism is provided between the thermal control unit and the aircraft pod for locking the control unit to the pod when so positioned. Complementary fluid connections and electrical connections on the thermal control unit and the aircraft pod are located for interconnection automatically in response to positioning and locking the control unit to the pod.

Abstract: A fishing reel having a housing with side frames spaced apart by a plurality of spacers and connecting rods. A spool shaft is rotatably supported in the side frames and has a spool thereon having an axis common with the axis of the shaft and lying transverse to the planes of the side frames. A drive is provided for rotating the spool about the axis of the shaft, with a clutch apparatus for releasing the drive from the spool. An anti-backlash assembly is included for resisting the rotation of the spool when the spool is disconnected from the drive. The anti-backlash assembly has an actuator with a pair of cams facing in a direction parallel to the axis of the shaft. The cams on the actuator engage a pair of cams on a bracket and mounting plate lying in planes transverse to the axis of the shaft. A plurality of magnets are carried by the mounting plate which create lines of magnet force with the spool for resisting rotation of the spool.

Abstract: An evaporator is made up of a plurality of heat exchange modules each in turn made up of an elongated lower header 30 of non rectangular cross section and having a plurality of tubes 40 mounted by the header 30 along its length and extending therefrom in side by side relation. The tubes 40, in the direction transversely of the header 30 are stacked and assembled together with the lower headers in sealing abutment with each other and defining upwardly opening channels 56. Sets of serpentine fins 44 can extend between adjacent tubes 40 in each module and/or between the plurality of modules.

Abstract: In order to lock a drive system from operation during maintenance procedures, while providing a positive mechanical engagement regardless of index position, a locking mechanism includes a sector gear associated with a rotatably mounted shaft. The rotatably mounted shaft and the sector gear have a common axis of rotation which extends generally tangentially of a system gear associated with a mechanical transmission of the drive system. With the system gear being mounted for rotation in a plane and having a plurality of equally spaced teeth completely about the periphery thereof, the sector gear also includes a plurality of equally spaced teeth, but disposed about only a portion of the periphery thereof. The rotatably mounted shaft is disposed in spaced relation to the teeth of the system gear and the sector gear is mounted for rotation into and out of the plane of the system gear.

Abstract: A metal transport pan having front, rear and end side walls extending downwardly with a slight inward taper and which are joined at curved corners, the lower parts of which have a similar taper and a top flange extending outwardly from the top of the side walls. Each of the curved corners has a nontapered section extending downwardly from the top flange generally at a right angle thereto to provide an outwardly protruding ridge whereby the spaced-apart ridges define a plurality of nesting surfaces for engagement with the top flange of a subjacent pan to limit the extent to which one pan may nest into the other and prevent contact between the side walls of the nested pans to maintain the stacked pans in nonjamming relation. The nontapered sections of the curved corners are formed at the same time as a conventional pan-forming draw is being performed in order to avoid any additional manufacturing steps.