Abstract: A handle for a medical instrument having a handle portion. The handle portion is fabricated from metal, preferably stainless steel, and is provided with at least one annular channel disposed completely around the handle portion. An elastomer material, preferably silicone rubber, is molded on the handle portion to completely cover the handle portion, where the elastomer material extends into and fills the channel. The elastomer material provides pressure within the channel when the medical instrument is heated during steam sterilization thereof so that the elastomer material defines a seal within the channel to prevent moisture from passing between the covered handle portion and the elastomer material. Additionally, the handle portion may be provided with holes extending therethrough which are filled with the elastomer material to additionally secure the elastomer material to the handle portion.

Abstract: A method for molding a wire insert in the body of a plastic article to reinforce a bolt-receiving opening. The wire insert is formed of a wire coil in which each convolution of the coil is in contact with its neighboring convolution. The coil has openings between adjacent convolutions to permit liquid plastic to flow between the convolutions as the article is being molded so that the coil is embedded within the plastic.

Abstract: Magnetohydrodynamic devices using hot ionized gas as working fluid require channel refractories, insulators, and electrodes to be cooled at their reverse sides in order to carry away heat flux fast enough to keep obverse sides below melting point, since gas temperatures of roughly 2500.degree. C. exceed melting points of any available metals or ceramics. Common procedure of brazing ceramic to metal backing (which is more conveniently fastened in apparatus and cooled) creates only partially solvable problem of differential thermal expansion, or bad fit. Ceramic reverse is grooved with dovetailed or convergent slots against which brazing stock is placed for brazing to metal backing. During brazing, molten braze alloy enters grooves and forms mechanical lock which on test proves stronger than ceramic itself.

Abstract: Solid resilient compound retaining the outer end of a bimetallic helical coil spring of a temperature responsive viscous fluid drive to a clip. The clip is secured to the cover plate of the drive. The inner end of the spring is secured to the valve shaft while the outer end of the spring is configured into a bight having a straight center portion inserted within a slot in the clip. A liquid compound is placed in the bight and surrounds a portion of the clip and fills the bight. The liquid solidifies to resiliently retain the outer end relative to the clip. A method for assembling the spring, valve shaft, cover plate, and clip is also described.

Abstract: An axle assembly having an axle tube, a transversely extending adapter plate adjacent an end of the tube, and a spindle projecting generally axially through the adapter plate. The adapter plate and spindle each have circumferentially spaced apart interdigitating fingers fixed thereto and each bearing on and extending generally radially across the end of the tube with the fingers of both the spindle and the adapter plate fixed to the tube by a weld which preferably extends circumferentially continuously around the outer periphery of the tube adjacent the end thereof.

Abstract: An improved thermite-type coupler for the splicing of bar-like structures such as reinforcement bars, of the type having an outer sleeve; an inner sleeve located within the outer sleeve; two collar members, each joining one end of the outer sleeve to one end of the inner sleeve; the area defined between the inner sleeve and the outer sleeve containing a thermite-type mixture and the area within the inner sleeve forming an annular space utilized for insertion of the ends of two bar-like structures, including means for igniting the thermite-type mixture and means for allowing the thermite-type reaction products after ignition to enter the annular space under pressure thereby, upon solidification, splicing the bar-like structures together having the improvement wherein the means for allowing the thermite-type reaction products afer ignition to enter the annular space comprises the inner sleeve having a multiplicity of perforations distributed over its surface.

Abstract: Structure intended to transmit great mechanical stresses, comprising an elongated core comprising at least an agglomerated glass fibre rod and fixing armatures fitted to the ends of the core, comprising means exerting radial compression stresses or stresses tending to jam the rod and maintaining at least partly those efforts in a zone of the structure situated in the armatures, even when the structure is not subjected to mechanical stresses. The structure has application to insulators for electric apparatus, stays, suspension of electric power conveying lines.FIELD OF THE INVENTIONThe present invention concerns a structure intended for transmitting great mechanical stresses, comprising an elongated core comprising at least one rod of agglomerated glasse fibres and fixing armatures fitted to the ends of the core, by means of which the mechanical efforts are transmitted. It relates more particularly to an improvement in the connection between core and armature of such structures.

Abstract: Each prefabricated side wall of a transportation type vehicle has a joint surface formed along the lower, inner side thereof for seating thereto the laterally outward edge portions of two flanges which extend laterally outwardly in vertically spaced, parallel relation along each side of a prefabricated floor slab of such vehicle. An upwardly tapered bead along the outer edge of the uppermost of each pair of such flanges enters a recess provided therefor along its respective side wall surface. Also, one half of a plastic-key-interlock joint is formed along the outer edge of the lowermost flange of each pair for interlocking engagement with a second half of each such joint which is formed along each such joint surface. With the side walls substantially perpendicular to the floor slab, upward movement of each tapered bead into its recess also moves the joint halves associated therewith into interlocking engagement with each other, and simultaneously opens up a key-forming passage lengthwise within each joint.

Abstract: The invention relates to a transfer joint for rigid frames comprising a solid joint member, the interior of which is made of hardened grout and has three or more bars joined to it with a non-positive and/or positive connection.

Abstract: In a plastic key joint wherein edge portions of two adjacent strakes are in relatively superposed, interfitted, edgewise engagement with each other in a manner to define a fully enclosed keyway therebetween, the present invention resides in deforming, preferably in an undulating or sine wave pattern, laterally opposite sides of the keyway prior to injecting, under selected pressure, flowable, hardenable key material into the keyway, thereby greatly increasing resistance of the joint to longitudinal shear stresses.

Abstract: An end fitting for a hawser which reduces the shear stresses generated win the hawser. The hawser is embedded in a tapered plug, which fits within a complementary member which does not surround the tapered plug for its full axial length. As a result of this geometry, the shear stress which results from the combined tensile and compressive stresses within the hawser and plug is reduced thereby allowing a greater tensile load to be exerted upon the hawser.

Abstract: A ball and socket joint of the type having a plastic ball portion which would interfere with the socket on assembly, has the ball portion molded to an arm concentric with the socket. In making the ball and socket joint, the arm is positioned in a mold and concentrically referenced to the socket. Then the plastic ball portion is molded on the arm using the inside of the socket as the outside spherical surface of the mold. Upon shrinkage of the molded plastic ball, a perfect bearing clearance is obtained, all of the socket inside surface is used as a bearing area and burrs from cuts on the socket to accommodate the interference fit are eliminated.