Abstract: A melt-holding vessel includes a melt-holding chamber defined by a bottom wall and upstanding side wall of refractory material. The side wall includes one or more insulating air pockets located in such a manner relative to the chamber as to substantially reduce heat loss from the melt in the chamber by conduction through the side wall.

Abstract: This invention relates to a rotational gripping device in the form of a torque handle which overcomes the problem of frictional slippage and provides mechanical rotational leverage. The handle includes a body portion having radially projecting rib members angularly displaced 120 degress about an axis of rotation. A rotational force is applied through the rib members by the user's hand and fingers. The rib member provide a positive no-slip drive. The torque handle is suitable for application to hand tools such as screw drivers, chisels, clamps, brushes, shovels, sports equipment such as rackets, baseball bats, golf clubs, boat oars and other similar implements.

Abstract: Bushings are embedded within a production drill plate to replicate the hole pattern of a master hole pattern plate. The exterior surface of each bushing is threaded, as is the wall of a receiving hole in the production drill plate. The pitch of the bushing and hole are the same but the pitch diameters are somewhat different so that the threads of the bushing are loosely engaged within the threads of the hole. When the bushing is potted in a properly aligned position, the containment potting material becomes compressed in the thread engagement area thereby resisting axial displacement of the bushing.

Abstract: An extensible handle bar for tools has on its outer tube a sleeve-shaped body made of thermoplastic material and provided with an external thread. The body has an extension provided with longitudinally extending slots and an external taper. A sleeve-shaped threaded nut is guided on the external thread of the body and has an internal taper which cooperates with the external taper of the extension. For improving the clamping of the inner tube of the handle bar in the sleeve-shaped body, the angle of inclination of the internal taper of the sleeve-shaped threaded nut is smaller than the angle of inclination of the external taper of the extension of the body provided with an external thread.

Abstract: A fishing lure comprises an elongate, generally cylindrical body portion made of transparent or semi-transparent material, and terminates in a plurality of narrow elongate streamers forming a skirt portion. The body portion bears internal, and optionally external, longitudinal facets forming light-reflective and optically visible surfaces, which are felt to improve visible attraction to the fish, and therefore fishing success. The internal longitudinal facets are preferably formed by a minimum of three rectangular surfaces, defining a triangular internal cavity in the body member, to a maximum of approximately twelve rectangular surfaces, defining a dodecahedronal internal cavity.

Abstract: A water kite has a single elongated generally flat plate integrally connected to a float having generally pointed terminal ends. A pair of spaced apart eyelets are disposed on one side of the plate adjacent to the float for attaching slidably the water kite to a fishing line without removing the line. A rotating arm assembly having a base and arm is centrally disposed between the eyelets on the plate. In order to control the trolling relationship of the kite relative to the location of the fisherperson, the base is adapted with a set of equally spaced apart detents for retaining releasably the arm against rotation with respect to the base in a selected one of a plurality of discrete positions. A release mechanism is secured at the tip of the arm for securing releasably the fishing line to the water kite, in order to set the tension on the line and to allow the fishing line to be disengaged easily from the mechanism whenever a fish strikes the line or bait.

Abstract: A swivel jig fishing lure which includes a hard body having a protuberant, rounded lobe disposed on the bottom side of the body and having a rounded nose at the forward end thereof. The central part of the body, to which the downwardly extending lobe is affixed, tapers rearwardly through a reduced diameter neck portion of the body, and merges into a flared tail portion. The body carries a retrieving line eye at the upper side of the forward end thereof, and an eye for attaching a hook at the opposite side of the artificial lure. A buck tail is secured around the body at the neck portion thereof by means of an elastomeric band.

Abstract: A process for compacting powdery materials is initiated by a pressure surge in which a surge G.sub.1 acts at a time t.sub.1 on the surface of the powdery material and, at the same time, a surge G.sub.2 is applied at a time t.sub.2 to a region of the material at a distance from the surface in the direction of the pattern so that friction between the sides of the mold housing and the compacting material is reduced. The time relationship is such that the air introduced into the material by surge G.sub.2 has time to escape before the surge G.sub.1 reaches the pattern plate. For this purpose, openings 9 are provided in the pattern plate between the mold box wall 3 and pattern 2. These openings can be arranged around the marginal areas of the pattern plate and can vary in size and number depending upon the distance between the wall 3 and pattern 2 or on the shape of the pattern. The openings can be vented to the atmosphere or connected to a suction source.

Abstract: A drive circuit for setter rollers is automatically coordinated with a spool drive to insure a condition of tension in a longline at all times during the setting operation. The apparatus includes various rollers to achieve the method, and in addition, circuits for controlling the motor adapted to drive the speed rollers at different but correlated rates of speed. While the fluidic circuit is hydraulic, alternative electronic controls may be employed.

Abstract: In a semiconductor device tape assembly bonding process the fingers of a copper tape are reflow soldered to metal bumps located on the semiconductor device. First, the semiconductor wafer is covered with a conductive film composed of thin layers of alumimum, nickel-vanadium alloy and gold. The bumps are then created by electroplating gold through openings in a photoresist mask. The gold bumps are overcoated with a controlled thickness tin layer and the tin is overcoated with a thin gold anticorrosion layer. The copper assembly tape is coated with a thin gold layer and are lightly pressed against the bumps by means of a thermode. The thermode is quickly heated to a temperature well above the gold-tin eutectic melting temperature and then rapidly cooled. The tin layer on the bump will combine with the adjacent gold to form a liquid phase eutetic which will form and contact both the copper finger and the gold bump. Upon cooling the eutectic melt will solder the finger to the bump.

Abstract: A method of soldering without the need for fluxing agents, high temperature, hydrogen, laser excitation or sputtering techniques. The method uses plasma excitation to remove surface oxides from solder surfaces, thereby eliminating the need for post-soldering cleaning in an accurate and efficient manner, resulting in a higher quality and long term reliability solder joint. In addition, serious environmental problems caused by cleaning solvents are avoided.

Abstract: A fishing spinner, comprising a body and a hook attached to the rear part of the body. Means are provided for holding the hook in a retracted position underneath of the body during its displacement in water. Means may be provided for preventing weed, vegetation or algae from being collected by the hook during its displacement in water in its retracted position.

Abstract: There is disclosed a removable handle for use on twine or flat lashing. The handle has at least one portion extending toward the lashing, for gripping the lashing. The extended portion has a distal end with a relatively flat end surface with curving section. Attached to the distal end is a gripping surface having a "U" configuration where the base of the "U" is relatively flat and substantially equal in width to the distal end flat surface. One side of the "U" is relatively short and disposed in relationship to the curved section of the distal end so as to form a gap between the top of the short side and the curved section for the insertion of the lashing. The flat section of the distal end can contain a semi-circular notch through which twine will fit. In one embodiment, the handle has two extended portions each having a U-shaped gripping section on the distal end thereof.

Abstract: Nickel base alloy sheets are diffusion bonded together at a temperature which is low enough to retain the superplastic properties of the nickel base alloy. A foil and a screen of type 300 series stainless steel are placed between the sheets in the area to be bonded. This assembly is sealed in an envelope and maintained in a vacuum to protect the surfaces from oxidation, and placed within the heated platens of a press. The assembly is heated to a temperature below which rapid grain growth occurs, and sufficient pressure is applied by the press to deform the screen to create continuous contact between the surfaces to be bonded. Diffusion causes bonding of the sheets in less than six hours at temperature, without destroying the superplasticity of the nickel base alloy. In an embodiment of the invention, gas pressure is applied between the sheets in a location away from the bond to superplastically form the sheets during the bonding process.

Abstract: An improved adjustable wheel structure mainly adapted for use in a trailing vehicle on which a yacht, boat or motorcycle can be mounted for transportation; the present wheel structure is provided with a special nut member having its inner surface half threaded and half smoothed, and the nut member is able to be adjusted forward or backward so that the threaded inner surface thereof can be selectively engaged with a vertically disposed adjusting screw rod which has a smaller diameter than the central through hole of the slidable nut member so that the wheel structure can be smoothly adjusted in height; as the threaded side of the nut member is adjusted to disengage from the screw rod with the smoothed side thereof in contact with the adjusting screw rod, the wheel structure can be adjusted quickly rather than in stepwise manner.

Abstract: The mechanical knot for ropes is a device to replace the time-honored metal hook and the conventional knots now used on tow and hoist ropes, and also tethering ropes. The device comprises a length of pipe or tube with an elongated slotted portion or portions in the walls, or a base plate with an elongated slot in it, and with right angle shoulders, each of which has a hole in it. Several methods of manufacture may be used in forming the device from various appropriate materials, including, but not limited to, milling, casting, extruding and bending. Strain on the rope secures the mechanical knot in place. When tension is relaxed, the rope can be easily untied. Should the rope break under strain, it will snap free of the mechanical knot device instantly, thus permitting the device to drop free from the rope. When it is desired to use a rope without the mechanical knot, it simply is slid off the rope.

Abstract: A pest collection-disposal device includes a means for establishing an air stream in an air duct forming at least a segment of a housing for the device. Positioned in the duct is a disposable pest collection cartridge. The cartridge comprises an elongated body having a flexible closure means and a filter means. The closure means deflects under the influence of an air stream from a closed position to provide an entrance thereto for insects entrained in the air stream. The filter means separates insects from the air stream. Upon termination of air flow, the flexible closure member is restored to an initial position to entrap the pest between the flap and filter means. The duct in one embodiment includes an expandable and retractable array of elongated telescoping members. In a further embodiment, the cartridge is positioned in one of the elongated duct members.

Abstract: A fixture for a fishing reel is provided which includes a tubular fixture body having a screw thread, a fixing holder, a movable pusher movable toward or away from the fixing holder, and a threaded ring for operating the movable pusher. A plurality of locking grooves extending lengthwise of the fixture body are provided at the screw thread of the fixture body. These locking grooves are spaced at predetermined intervals circumferentially of the fixture body. An engaging projection engageable with one of the locking grooves to restrain the threaded ring from loosening is provided at the threaded ring such that it can be changed in position between engaged and disengaged positions with one of the locking grooves.

Abstract: The apparatus, for manufacturing building panels for construction walls with antiseismic and thermoacoustic insulation characteristics, includes a horizontal table for assembling a panel formed by at least one layer of insulating material and by a pair of metal grids associated with the opposite faces of said insulating layer, means for advancing said panel step by step to a station for inserting, cutting and welding connecting elements of said metal grids. The inserting and welding station includes means adapted to insert the connecting elements transversely to the insulating layer, lower welding means adapted to weld the connecting elements, which pass through the insulating layer, to the lower metal grid of the panel, means for cutting the connecting elements at the upper metal grid of the panel, and upper welding means adapted to weld the cut connecting elements to the upper metal grid of the panel.

Abstract: In a casting core for the water jacket of a cylinder block in a multicylinder, reciprocating-piston internal combustion engine, whose cylinders are arranged in line and are cast in one piece linked by cylinder webs, these webs are provided with rectangular plates of a ceramics material--preferably sintered oxide ceramics--, which are used as supports for two core halves, in which they are anchored in such a way as to present a one-piece casting core. The supports are removed during the core cleaning process, leaving passages for the cooling water.