Abstract: A process for preventing transverse displacement of metal strip comprises correcting a shape of metal strip into flat form prior to the travel of the metal strip into a continuous annealing furnace when continuously annealing the metal strip in the furnace under a condition of LSD.gtoreq.100 (representing a product of line speed and strip gauge).

Abstract: A printed wiring board comprising a plastic material is formed with a through opening for mounting electronic parts therein, and the end of the opening on the rear side of the board is closed by a metal sheet bonded to the area around the opening end on the rear of the board through an adhesive layer. The inside wall and bottom face of the opening in the board are coated with an integral plating film as are the rear surfaces of the board an metal sheet. According to this board structure, the heat generated from electronic parts mounted on the bottom of the opening is dispersed by the metal sheet, and also penetration of moisture into the opening through the plastic material and the adhesive layer, as occurs with conventional boards, is prevented by the plating film.

Abstract: A process and an apparatus for improving iron loss of electromagnetic steel sheet or amorphous material are disclosed. In this case, the steel sheet or amorphous material is subjected to an irradiation of plasma flame under specified conditions.

Abstract: This invention relates to a fixture for holding twist drills having cutting edges to be ground. A stand is mounted on a base plate, which is displaceable and/or rotatable. The stand carries a bracket, which carries gripping unit for gripping the drill to be ground. The gripping unit comprises two gripping jaws and is adapted to be detachably mounted on the bracket in two predetermined positions. The bracket is formed with angle-section track grooves for guiding the gripping unit. Each gripping jaw comprises two outer edges, which extend along said track grooves, and adjacent to said outer edges is formed with two angle-section guides, which are adapted to interengage with said track grooves and to be slidably guided by said track grooves. The bracket is provided with a thrust screw for clamping the angle-section guides in the track grooves. A grinding apparatus is also disclosed, which comprises a grinding unit carrying a grinding wheel and in which the base plate is movable relative to the grinding unit.

Abstract: The invention relates to a method of manufacturing a high-strength steel sheet by annealing the steel sheet after cold rolling. In order to obtain the low-yield ratio, high-strength steel sheet having high strength and good ductility, resistance to secondary cold-work embrittlement and spot weldability at low cost, the steel sheet containing 0.03-0.15% of P and specified amounts of C, Mn and Al as basic components and optionally containing, as a selective component, at least one element selected from a group of Si, Cr, Mo and B and a group of Nb, Ti, and V in such amounts as to meet the relation formula restricting the total content of Mn, Si, P, Cr and Mo is subjected to annealing under the conditions that the sheet is heated at a temperature of from Ac.sub.1 transformation point to 950.degree. C. for from 10 seconds to 10 minutes and cooled in such a control manner that an average cooling rate between 600.degree. C. and 300.degree. C.

Abstract: A method and apparatus for producing a rapidly solidified microcrystalline metallic tape. The method provides for molten metal to be continuously poured through a nozzle onto surfaces of cooling members to form a rapidly solidified metallic tape and then coiling the tape on a reel. According to this method, the metallic tape is secondarily cooled and rolled before the coiling. The apparatus includes a device for cutting out a non-steadly portion of the metallic tape, a device for measuring tape thickness, a secondary cooling member, and a device for controlling the tension of the metallic tape.

Abstract: A system for controlling the lamina size, in a material treatment process for tobacco leaves. The system comprises measuring means for measuring the production ratio of the lamina larger than a given size in the raw material treatment process in which the tobacco leaves which have been provided with a water content and temperature by a humidity controller are stripped into laminae and ribs by means of rib removing machines capable of changing a mechanical impact force applied upon the tobacco leaves by changing the rotational speed of grid or threshing gear and are then separated by means of separating machines; and operational control means for receiving measurement signals from said measuring means as a feedback signal for searching a rotational speed of grid or threshing gear which provides an optimum lamina size by a hill-climb method using the rotational speed of grid or threshing gear of the rib removing machines as manipulation factor.

Abstract: A borehole drill construction comprising a cylindrical casing, a chuck mounted on one end of the casing by means of a screw-thread and a cutter head carried by the chuck. The chuck has at least one axially projecting dog thereon which is received in a corresponding recess in the cutter head to provide a means to transmit torque from the casing to the cutter head via the chuck. The cutter head is retained on the bit by at least one plug projecting into a slot in the cutter head, which is permitted limited axial movement thereby.

Abstract: A steel cord comprising at least 10 metal filaments and having an elongation of 0.015-0.045% under a load of 0.5 kgf, an elongation of 0.025-0.060% under a load 1 kgf, and an elongation of 0.060-0.114% under a load of 4 kgf, assuming that the elongation under a load of 0.05 kgf is 0%, has a soft twist construction and is suitable to be used in the carcass of a radial tire for truck and bus.

Abstract: An earpiece comprises a suction cup sensor, a preamplifier, a potentiometer for varying the gain of the amplifier, a pass band filter and electronic means enabling the user to adjust the central frequency and/or the width of the pass band of the filter. One application of the invention is the construction of self-contained and individualized telephone handsets or headphones which may be connected without any wire connection on any telephone set.

Abstract: A liquid fuel injection pump of the rotary distributor type has a first groove on the distributor member for registration with fuel supply ports and a second groove for registration with outlet ports. The grooves are connected to the plunger bore and as the distributor member rotates fuel is supplied to the bore through the first groove and delivered to an outlet through the second groove. The distributor member is axially movable to control the quantity of fuel delivered and in the excess fuel position the second groove is arranged to register with a vent port during the initial period of registration of the first groove with an inlet port. This allows air to be purged from the passage and bore.

Abstract: Process for the mechanized production of jewelry comprising a plurality of small contiguous precious stones set in a metal support consisting in machining in said support, bores that are aligned, and in machining on the periphery of said bores, truncated studs of which the walls converge upwardly and the diameter of the circle inscribed inside the top parts of the studs is greater than the diameter of the largest stones, whereas the diameter of the circle inscribed inside the bases of the studs is smaller than the diameter of the largest stones.

Abstract: A press apparatus for reducing widths of hot slabs comprises a pair of anvils movable toward and away from each other in width directions of the hot slabs, width reduction heads to which the pair of anvils are attached, respectively, and eccentric presses for reciprocatively driving the width reduction heads through sliders, respectively. The apparatus further comprises width adjusting means incorporated in the eccentric presses, respectively, for changing distances between the width reduction heads and the sliders. Each of the anvils has a parallel portion in parallel to a feeding direction of the hot slabs and an inclined portion on an entry side in the feeding direction. With this arrangement, the reducing distance can be set according to the desired distance of reduction in width in continuous width reduction and the reduction in width can be continuously effected with the set reducing distance with high efficiency.

Abstract: A belt type cast sheet continuous caster of the type comprises a pair of opposed circulatorily movable belts, a pair of opposed side plates arranged along opposite side edge portions of the movable belts, coolers which each have numerous water feed openings and water discharge openings opened to the movable belt and are arranged behind the respective movable belts, and movable partition plates which are placed in respective cooling headers and each connected to driving means for moving the partition plates in a width direction of a cast sheet. A casting space is defined by the movable belt and the side plates.

Abstract: Hollow metal ingots are produced by a hollow metal manufacturing apparatus comprising a mold placed on a stool, and a cylindrical metallic cooling core placed in the mold to form an annular casting space therebetween. During the casting, a cooling fluid is directly blown upon the inner surface of the core while the cylindrical metallic core is allowed to be buckled. The cooling core is constituted by an outermost metallic cylinder to be brought into contact with a molten metal, a cylindrical lattice-fashioned buckling-adjusting frame positioned in the metallic cylinder and provides passages through which the cooling fluid is passed, and a cooling fluid vessel which is positioned inside the buckling-adjusting frame and is provided with a number of cooling fluid blowing nozzles.

Abstract: A liquid fuel pumping apparatus of the rotary distributor type has a rotary distributor which is also axially movable to determine the quantity of fuel supplied by the apparatus. Inclined stop surfaces are provided to limit the outward movement of the pumping plungers during the filling strokes and an axial reaction is applied to the distributor member when the surfaces engage. The axial position of the distributor member is controlled by applying fluid pressure to one end thereof, the fluid being supplied to a chamber. A supply pasage to the chamber includes a check valve and escape of fluid from the chamber is controlled by a sleeve which covers a port. When the axial reaction is applied the port is closed by the sleeve and the check valve closes to form a hydraulic lock.

Abstract: A method of producing a precursor pitch suitable for the production of carbon fibers, which method includes dissolving a coal tar pitch in a particular solvent to remove a solvent insoluble matter, distilling off the solvent to obtain a purified pitch containing no free carbon, and heat-treating the purified pitch to obtain an objective precursor pitch.

Abstract: A foldable golf buggy having a lower frame member supported by wheels, an upper frame member pivotally mounted to said lower frame member to swing between an upright position and a folded position lying adjacent to the lower frame member, the upper frame including an attachment to which is pivotally affixed one end of an elongate buggy handle; at least one strut member pivotally affixed at one end thereof to the lower frame member and extending up to and past the attachment alongside said handle to be captured by the attachment whereby, when said handle is moved forwardly, the attachment acts as a guide following at least one strut member as the upper frame member is moved into its folded position. The golf buggy may be provided with a seat which is also foldable and allows for ease in transportation.