Abstract: A clevis thimble connector embodies an elongated body member having a clevis at one end for connection to a supporting structure and a thimble at the other end for receiving the loop end of a conductor. A laterally projecting member extends perpendicular to a conductor receiving groove in a thimble and is provided with an eye in spaced relation to the thimble for receiving a connector element of a device for applying tension to the conductor.

Abstract: A plastic load-distributive washer for use with compressible materials. An axial projection has a laterally extending external flange and an internal throughbore. A portion of the throughbore has a lateral dimension exceeding the maximum lateral dimension of a fastener head with which it is used and an axial length which is at least several times the height of the fastener head. The washer is free to float with the compressible material subject to loading while the fastener remains unmoved. The washer may also be provided with a flexible snap ring to limit the amount of relative movement and a plurality of one-way fingers which cooperate with projections on the head to restrict relative rotational movement between the washer and fastener in the removal direction.

Abstract: A method and means for releasably rigidly fastening two standardized metal profiles intersected at an angle and lying one upon another are provided in which four L-shaped members each having two vertical sides are respectively applied at the respective corners of the intersection such that the outer faces of the respective sides of the L-shaped member abut against the respective edge portions of the metal profiles at the intersection lying one upon another and at the same time portions of the respective sides are made to protrude beyond the upper or lower surface of the metal profiles, whereby the confronting protruded portions of the sides of the L-shaped members are rigidly connected together by any suitable fastening means with the metal profiles being respectively interposed between the confronting sides, respectively.

Abstract: A structural joint suitable for a frame member for furniture, e.g. a leg for a work bench, comprises two tubular members 10, 11 slidable one inside the other. Each member 10, 11 has a longitudinal slot 13 through which a wing nut 16 is passable. The members are secured by engaging a screw 17 in the nut 16 which is so long that it cannot fully rotate inside the inner member 11. Preferably, the slot 13 has enlarged portions 14 which alone can pass a boss of the nut 16.

Abstract: A nut device permitting securement of and to thin panel members. An axially extending, internally threaded shank has two laterally extending flanges interconnected to one end, the flanges being bent downward. Two beam members extend laterally from the shank in a direction which is generally perpendicular to the flanges, the ends of the beam members being bent upwardly toward the flanges. The nut is inserted in a slot in the panel by positioning the beam members parallel to the slot, pushing downwardly on the beam members to flex the flanges so that the beam members may be rotated clockwise beneath the panel. The flanges and beam members cooperate to frictionally clamp the panel and resist lateral and rotational displacement relative to the panel. A specially configured tool is also disclosed.

Abstract: A cylindrical pivot for a multiblade damper assembly having at least three pivotally mounted blades is provided in which the blades are interlinked by connecting rods pivoted to brackets which are secured to each of the blades. Each bracket is formed with a pair of parallel extension arms which extend beyond an end of the blades, and these arms have opposed openings for receiving a cylindrical pivot at their outer ends. A cylindrical pivot is rotatably mounted in these opposed openings, each pivot having a threaded axial bore at both ends thereof and a cross hole extending therethrough. At least two of these pivots are axially joined together by means of a threaded rod which is preferably constituted by a studded connector having a centrally positioned flange which serves to insure that both pivots are adequately threaded on, and it also serves as a stop when the pivot between the arms of the bracket carries no connecting rod.

Abstract: A tightly fitted assembly including an impeller mounted on a tapered shaft with an interference fit. The impeller includes a piston and cylinder arrangement adapted to supply an axially acting force to the impeller to disengage it from the shaft while fluid pressure is applied to the bore of the impeller to break the interference fit between the shaft and impeller.

Abstract: Thread material is removed from the non-load bearing flank of a selected number of threads on each side of the center thread of a nipple to provide increased strength for an electrode joint formed therewith.

Abstract: A novel fuser roll is disclosed which has a rigid core and having coated on the core a thin layer of a composition which comprises the crosslink product of a mixture of about 100 parts by weight of .alpha.,.omega.-hydroxypolydimethylsiloxane, about 128 to 250 parts by weight of finely divided tabular alumina, about 13 to 50 parts by weight of a finely divided iron oxide, together with effective amounts of a crosslinking agent and a crosslinking catalyst.

Abstract: Disclosed herein is a device for rigidly coupling a handle to its corresponding manual instrument, and an instrument provided with the said device, comprising: a first element that can be connected to a handle, or else be made in one piece therewith, and has a terminal stem, the diameter of which is less, provided with projections whose surfaces, turned towards a shoulder defined by it with respect to the body of the first element, slope both with respect to the axis of the first element and to a plane perpendicular to the said axis; a second element provided internally with an axial hole, which allows the passage of the first element, and a number of projections equal in number or a multiple of those of the said stem, with lower surfaces shaped to accept flush therewith the sloping surfaces of the projections with which the said stem is provided.

Abstract: An arrangement for the rigid connection of a drive or driven shaft with a coding disk of an angle coding device. Arranged at the drive shaft is a one-piece compensation ring comprising a first flange for receiving and attachment of a coding disk, a second flange for securing such compensation ring to the drive shaft, and a sleeve element interconnecting the two flanges. The first flange and the sleeve element are divided into segment portions or segments by slits distributed on the periphery, whereby there are absorbed most of the radially acting forces which are caused mainly by the different coefficients of expansion of the relevant materials. The arrangement is particularly suitable for a coding disk which is rigidly connected for rotation to the drive or driven shaft and which is operatively associated with an angle coding device for the reading of the elevation or azimuth alignment movement of an observation periscope.

Abstract: The specification discloses a chair control in which a chair height adjustment actuator includes a handle whose position does not change relative to the tilting member of the chair control. The handle is pivotally mounted to the tiltable member and engages the end of a linkage rod pivotally mounted to the handle. The other end of the linkage rod is pivotally joined to an actuator arm which in turn is pivotally secured to the mounting member of the stationary chair control housing adjacent that point at which the mounting member is secured to a chair base of the type having a height adjustment actuator located at the top of the chair base column.

Abstract: A bushing, sleeve, bearing or like part is secured in a structural member with a clamping device which is screwed into the structural member at right angles to said part to cause a tapered portion of the device converging toward terminating a reduced diameter material end portion to forcibly engage the said part.

Abstract: A tapping boss formed in one piece with the upper half casing for joining the lower half casing of a magnetic tape cassette comprises a stem having a cross sectional area slightly larger than the diameter of a tapping screw to receive the screw and a plurality of ribs which project radially from the cylindrical surface of said stem and whose top portions provide contact shoulders for the boss supporter of a lower half casing.

Abstract: A structural joint for a space frame having connecting members or nodes and tubular structural member is provided in which the shank of a connecting bolt, whose head is located within the hollow end portion of the tube, extends through an aperture in the tube end for engagement with a threaded opening in the node. The tube shank has a longitudinally extending keyway formed therein in which a key is slidably received. A nut or sleeve having an unthreaded inner bore receives the bolt shank and has an internal keyway which receives a portion of the key to rotatably lock the nut and bolt together so that the nut may be rotated to rotate the bolt and engage its shank in the threaded opening of the connecting member.

Abstract: This invention relates to clamps of the kind for releasably connecting a plurality of rods or other elongate members at predetermined angles to each other.According to this invention a clamp of the above kind comprises two half portions and securing means for mutually securing said half portions, each half portion comprising an inner face with a central region on which central region an annular collar 18 is disposed and through which collar a hole 17 for said means is provided and a plurality of lobes 14, 15, 16 extending from said central region said lobes being provided with lands 8 which cooperate in use of the clamp with respective elongate members.

Abstract: A protection chamber for temperature-sensitive or moisture-sensitive materials, comprises heat insulated wall elements which are joined in a butt joint. A semielastic sealing compound is disposed in the joint; and an additional sealing compound of a material of greater elasticity is disposed at but outside the joint. A cover profile overlies the additional sealing material and the adjacent edges of the wall elements and is arcuate in the zone of the additional sealing compound but has relatively straight wings that are secured to the wall elements on opposite sides of the additional sealing compound.

Abstract: A fan assembly for vehicles, which includes a circular boss portion integrally provided with a plurality of inwardly-extending stress-distributing projections adapted to be connected to a viscous fluid coupling device by a plurality of plate springs, each plate spring being fixedly attached to its respective stress-distributing projection by a bushing. The stress-distributing projections are formed with sockets into which protrusions on the plate springs are fixedly received. The related sockets and protrusions serve to absorb vibrations in the fan assembly and forces caused by deformation of the plate spring, and thus keep the connection between the bushing and the stress-distributing projections from loosening.

Abstract: A connector hub made in a single integrally cast unit for connecting the ends of the stringer frame members of a geodesic dome structure, said hub being characterized by a plurality of pairs of spaced apart flange elements defining stringer receiving slots arranged in generally radially extending relation around the central axis of the hub unit with stiffening web elements disposed between adjacent slots, to provide an extremely strong and rigid connector hub for the stringers which is also specifically designed to abut the ends of the stringer elements to provide additional rigidity for the stringer connection.

Abstract: The invention relates to a device for coupling or plugging square tubes, which comprises a hollow base member having a hollow coupling member projecting therefrom and, if desired, one or more other coupling members projecting from the base member. The other coupling members have axial partitions in the mid-portions thereof, at least the mid-portion of which is thick enough to receive a sheet metal screw and, if desired, there is provided a plug for the hollow coupling member for receiving a sheet metal screw.