Abstract: A hydro-magnetic door hold open device. A piston on a piston rod is slideably mounted in a cylinder that is mounted eccentrically inside a housing. The piston rod extends out of the housing and connects to a hingedly mounted door so that opening or closing of the door effects reciprocation of the piston within the cylinder. Both the housing and the cylinder within it are filled with hydraulic fluid. A ball valve positioned forwardly of the piston is confined within a valve chamber that has three seats; the inner cylinder is provided with apertures on the rearward side of the piston and forwardly of the valve chamber so that the ball valve is carried by the fluid into either of two of the seats attendant piston advancement or retraction and maintained in such seat by a pressure differential established in the fluid by the travel of the piston.

Abstract: The combination of an improved illuminated fishing lure construction (10) and an external power source (13') for producing illumination within the sealed lure body unit (11); wherein the hollow body member (15) has a plurality of conductive surfaces (16) extending from the interior to the exterior of the hollow body member (15) and forming a portion of circuit means (14) contained within the hollow body member; wherein the circuit means (14) comprises rechargeable power source (13) and an illumination unit (12); whereby a charge may be transferred by the external power source (13') through said sealed body unit (11) to said rechargeable power source (13) to activate said illumination unit.

Abstract: A head (158) precisely registers an article (10) to a site for operations such as bonding. The article (10) may be an electronic chip (10) containing a plurality of sides (12-15) having top edges for engaging the head (158) and bottom edges for registering to a topside (95) of a pedestal (20). A body (161) has an upper portion adapted for support and a lower portion terminating in a downwardly presented, working face (159). Face 159 includes a cavity (166) formed by walls (167-170) having inwardly and upwardly directed surfaces (171-174) for engaging corresponding top edges of the chip (10). The chip (10) is at least partially disposed within the cavity (166) making it difficult for an operator to see, especially when a fixed microscope is required for viewing. A bore (175) communicates with the cavity (166) and may be connected to a vacuum source for drawing a chip (10) into the cavity and for removably engaging the same to the engaging surfaces (171-174).

Abstract: A caster wheel assembly which uses a mechanical brake to apply force in order to prevent shimmying at high speeds. A controller arrangement provides that no braking force is supplied until the vehicle reaches a preset speed. Thereafter, a predetermined amount of force is applied to the brakes. The predetermined force is great enough to prevent shimmying but low enough to permit the caster wheel mounting member to continue to rotate about its axis so that the vehicle may continue to be maneuvered even at high speeds.

Abstract: A continuous casting contrivance comprises a mold (7a) capable of being installed at the floor of the crucible (1) in an opening (3) that may, if necessary, display a casting punch (25a). Further provided for the mold is a cooling arrangement. As to whether the production and operating costs of a continuous casting contrivance of this type are to be significantly reduced as compared to the state of the art and the quality of the casting improved, and to be able to again prepare a mold for a renewed continuous casting, is provided for on the one hand by splitting the continuous casting mold (7a) into, if necessary, a supply part (4) accommodating the casting punch (25a) and, transversally to the direction of continuous casting, a cooling mold (7) capable of being regulated in its temperature, whereby the supply part (4) is disposed in the crucible floor (1) and/or in an insert (1a) provided there.

Abstract: A multiple station sequentially operating trim press is arranged to receive workpieces for subsequent transfer from a loading station to a treatment station by means of a pivotally mounted workpiece support. After trimming and deburring, the workpiece is transferred to a collection station and the workpiece support is moved to a cleaning station where its surface is washed free of residual trimmings. The workpiece support is then returned to its loading station and the sequence repeated.

Abstract: The subject of the invention is a one piece interlock forming member used in metal casting, comprising a tapered member adapted to fit in the match plate, which is used in the core or mold forming process in such metal casting operations; the subject interlock forming member comprises a cylindrical member with a conically shaped upper portion, constituting the male member, with a conically shaped chamber inside the lower cylindrical portion, such chamber constituting the female portion, and which interlock forming member shapes corresponding male and female interlocks in the drag and cope sections of the flask used in metal casting.

Abstract: A thin shell ceramic mould for use in metal casting is formed by applying a thin coating of a suitable material and binder to an expandable pattern, e.g. expanded polystyrene, having a density of about 30 to 50 kg/cu.m. The coated pattern is subjected to heat at a temperature of about 1000.degree. C. for 10 minutes to burn out the pattern and cure the coating. The ceramic shell is made just thick enough to be handled.

Abstract: A continuous casting machine has an open ended flow-through mold surrounded by a plurality of spray nozzles connected in groups to segregated sources of water and air for dispensing the same individually or in combination. The spray nozzles are positioned to provide multiple zones of cooling. Each nozzle may include a mixing valve operated by a control which in turn is connected to an individual temperature sensor mounted on the surface of the mold in an opposed relation to each nozzle. The control establishes the flow rates of air and water at each nozzle in accordance with the individual temperature of that portion of the mold whose temperature is affected by the respective nozzle.

Abstract: A die casting process for making castings by means of a horizontally oriented cold-chamber die casting machine comprises the steps of advancing a casting piston in the casting chamber from a starting position for ejecting the molten metal dosage from the casting chamber; and withdrawing the casting piston into the starting position. The withdrawing step includes the step of passing over metal residues adhering to walls of the casting chamber. Subsequent to the withdrawing step and prior to the charging step of a successive cycle, the casting piston is advanced in the casting chamber void of molten metal dosage for ejecting the metal residues by the casting piston from the charging chamber and returning the casting piston into its starting position.

Abstract: Disclosed is a hinge repair assembly for correcting wear in the lower hinge of an automotive vehicle door, which wear occurs because of extended opening and closing of the door, with the result that the hinge pin hole (or holes) in the lowermost hinge ear (or ears) becomes ovalized and the door sags out of alignment with its striker and latching plates. The repair assembly includes a bearing block that is insertable in the space between the door ears and between the door edge and the hinge pin. The block is an upright groove that receives and forms a bearing surface for the hinge pin and a pair of ramp-faced members lying one at each side of the block and cross-connected screws which, when tightened, cause the block to ride forwardly on the ramp faces of the members to improve the bearing relation of the block to the hinge pin and restoring the hinge pin to its original position forwardly in the ovalized hole.

Abstract: A fishing lure includes a first body segment having front and rear ends and a center of buoyancy, a second body segment having front and rear ends and a center of buoyancy, and an articulated hinge joining the rear of the first segment to the front end of said second segment at a point below their respective center of buoyancies. Additionally, at least one fish hook is attached to at least one body segment. The lure also includes front and rear retarding surfaces having a known size relationship to one another, and a flexible tail portion, constructed to simulate the tail of an aquatic life form. The entire lure may be formed of a molded portion surrounding a mesh portion, to provide a strong, resilient lure, and having a fish hook threaded through the molded and mesh portions. A line attachment eye is provided to secure the lure to a fishing line. The eye may be positioned below the center of buoyancy.

Abstract: In the horizontal continuous casting of metal, an upper contact part and a lower contact part of the metal body are horizontally displaced with the inner wall of the tubular chilled mold relative to one another, so that the lower contact part is positioned downstream relative to the upper contact part. Gas pressure is used to displace the contact point.

Abstract: A cylindrical type reel seat for fishing rods including a finger grip on the lower surface of a body portion thereof, wherein:a finger recess is formed adjacent to said finger grip, and said reel seat body portion includes a rod-passing bore of a reduced or small diameter only at the portion adjacent to said finger recess, said smaller diameter portion being designed to be fitted over said fishing rods.

Abstract: An improved wax master tree used for precision casting is provided. The tree comprises a sprue rod and a plurality of wax masters attached to the sprue rod by fusing. In the improved wax master tree of the invention, the sprue rod is made of a substantially rigid material having a sufficient mechanical strength and withstanding to retain its integrity during the dewaxing step, and has a contour of generally tubular shape with the wall provided with a number of pores and covered with a wax covering layer. The rigidity of the tubular member ensures easy handling of the tree without the fear of damage during the handling operations. By the provision of hollow core portion internally of the tubular member having a wall provided with a number of pores, the risk of cracking of the ceramic shell mold applied on the wax master tree at the dewaxing step caused by the adverse affect of thermal expansion of the wax can be avoided.

Abstract: An apparatus for releaseably securing a fishing lure to a fishing line. The apparatus includes an elongate body having spaced pairs of aligned transverse gripping members. The apparatus is secured by the fishing line to the fishing lure or alternatively forms an integral part of the lure. A fishing line is inserted through passageways in opposite ends of the body of the apparatus and forms a loop that engages the "eye" of the fishing lure, secured by engaging gripping members on alternate sides of sequential pairs on the apparatus.

Abstract: A process of forming a high alloy layer on a surface of an aluminum alloy casting. The process comprises steps of providing a mixture of fine powders having an average powder size finer than 10 microns, preferably finer than 1.0 micron, of an alloying metal or an alloying alloy and an acrylic binder, shaping the mixture into a sheet, heat treating the sheet at 150.degree. to 380.degree. C. for more than 5 minutes, placing the heat treated sheet on a surface of a casting mould or a chilling block, and casting molten aluminum alloy.

Abstract: An inclining molten metal charging apparatus for forced cooling casting which includes a fixed frame; an inclining frame pivotally supported by the fixed frame and reciprocatingly inclined at a predetermined angle; a stool having positioned on and fitted thereon a casting mold, a plurality chillers used for directional solidification and a tubular member internally chilled as a functional component such as a bolt fastening hole in a resulting casting; a stool support mechanism for carrying the stool into and out from a space defined by the inclining frame; a clamp mechanism for having a function of clamping the stool at a predetermined position inside the space, and equipped with a push member for pushing the casting mold to the stool when the clamp mechanism effects clamping; a molten metal vessel receiving a molten metal at the end of the forward stroke of the inclining frame and completing the charge of the molten metal into the casting mold at the end of the returning stroke; a cooling nozzle fitted to th

Abstract: Fishing apparatus which automatically effects mechanical bobbing of a baited hook on a fishing line and signals when a fish has taken the bait. The apparatus includes an elongated member adapted to have a fishing line connected adjacent to one end. The elongated member is adjustably mounted on a substantially horizontal fulcrum in a first position where it is substantially horizontally balanced on such fulcrum, or a second position where it is remote from the horizontal to generate a signal indicating that a fish has taken a baited hook of the fishing line. In the first position the elongated member is oscillated about the fulcrum to move such member in a manner for reciprocation of the fishing line to bob the baited hook on such line.

Abstract: A method of preparing a composite aluminum material to be formed integrally by bonding aluminum or aluminum alloy to an aluminum or aluminum alloy member which is formed in advance in a specified shape by the method of internal chill, etc. The method comprises the steps of forming a chemical conversion coating of pentafluoroaluminate (K.sub.2 AlF.sub.5) by bringing a solution containing potassium ions and fluorine ions in contact with the surface of the aluminum member.