Abstract: An intravascular stent 11 has an elastic self-expandable cylindrical stent proper 12. The stent proper 12 is connected to metal support wires 18 that are long enough to reach outside of the body of a patient through a catheter 31. Manipulation of the support wires 18 pushes the stent proper 12 into a blood vessel from within the catheter, thereby allowing it to expand there, and then contracts and retracts the stent proper 12 into the catheter 31, repeatedly.

Abstract: An automatic programming apparatus is provided to generate a NC program for processing a roll having a cylindrical part and axle parts. The apparatus includes a roll-profile setting module, a process-condition setting module, a process-order setting module and an automatic programming module. The roll-profile setting module establishes dimensional values of the roll between an operator and the apparatus at every locational code, while the process-condition setting module establishes a plurality of process conditions at every process code, interactively. The process-order setting module combines the locational codes with the process codes at every process order, optionally and interactively, so that the process order of the cylindrical part and the axle parts is set while allocating any one of the process conditions.

Abstract: A method of measuring a roll diameter of a roll is provided. At first, a step-shaped conical master roll consisting of a plurality of diametrical parts is prepared and then, the diameters of the diametrical parts under predetermined standard temperature are measured. After mounting the master roll on a roll grinder under a temperature condition similar to that surrounding the roll mounted on the roll grinder, a diameter of one diametrical part, of which standard diameter is closest to the roll diameter of the roll, is measured. Next, a difference between the diameter value of the diametrical part and the standard diameter value is calculated as a correction value, so that the roll diameter value of the roll is corrected by the correction value.

Abstract: A plated nickel-titanium alloy product having a plated layer of nickel or a nickel alloy containing 5 to 15% by weight of cobalt. This product exhibits excellent surface treatability and workability, as well as shape memory effect and super-elasticity. Thus the product is most suitable for eyeglass frame components or similar ornamental articles.The product is produced by plating a layer of nickel or a nickel-cobalt alloy on the nickel-titanium alloy, dehydrogenating, cold working with not less than 10% working ratio, and subjecting to a final heat treatment between 300.degree. C. and 900.degree. C. If the final heat treatment is conducted between 750.degree. C. and 900.degree. C. for 10 to 120 seconds, a product with 4% or more super-elasticity at room temperature can be obtained.

Abstract: A roll caster shell for use in a continuous sheet casting machine which is made of an alloy which consists essentially of, in weight %,:C: 0.35-0.55%, Si: 0.10-0.50%, Mn: 0.20-0.70%,P: 0.03% or less, S: 0.02% or less, Ni: 0.60% or less,Cr: 0.80-1.50%, Mo: 0.80-1.50%, V: 0.30-0.60%,Co: 0.30-1.00%,Fe and incidental impurities: balancewith the total amount of elements other than Fe and C not exceeding 5.0 atomic %.

Abstract: A cold rolling work roll having improved grindability is made from forged steel of a composition consisting, by weight, essentially of:C: 0.70-1.20%, Si: 0.15-1.00%, Mn: 0.15-1.00%,Cr: 1.5-5.5%, Mo: not mroe than 0.60%,Ti: up to 0.0029%, V: 0.1-0.49%,Ni: 0-1.0%,Fe and incidental impurities: balance. Preferably the maximum particle size of the carbides is adjusted to be no more than 1.50 .mu.m.

Abstract: A cold rolling work roll having improved grindability is made from forged steel of a composition consisting, by weight, essentially of:C: 0.70-1.20%,Si: 0.15-1.00%,Mn: 0.15-1.00%,Cr: 1.5-5.5%,Mo: not more than 0.60%,Ti: 0.0030-0.0100%,Ni: 0-1.0%,V : 0-0.20%,Fe and incidental impurities: balance.Preferably the maximum particle size of the carbides is adjusted to be no more than 1.50 .mu.m.

Abstract: An eyeglass temple has an arm whose forward end is connected to one of a pair of eyeglasses or to one end of a rim holding a pair of eyeglasses and an earpiece continuing from the rear end of the arm is made up of a plastic temple proper and a core buried in the plastic temple proper so as to extend in the direction of its length. A portion of the metal core buried in the arm has extra-high elasticity, whereas a portion in the earpiece has plasticity.

Abstract: A steel from which rolls for a cold rolling mill are made and which gives to the rolls very excellent wear resistance in addition to thermal shock and spalling resistances and various mechanical characteristics is provided. Said steel comprises:C : 0.70 to 1.50 wt %Si: 0.15 to 1.00 wt %Mn: 0.15 to 1.50 wt %Cr: 2.50 to 10.00 wt %Mo: 1.00 wt % or lessV : 1.00 wt % or lessNi: 1.00 wt % or lessTi: 0.04 to 0.30 wt %with the balance being Fe and inevitable impurities.

Abstract: Molten metal is poured into a substantially cylindrical mold from its bottom while the mold is being rotated about its vertical center axis. The ingot-making apparatus comprises a substantially cylindrical mold, stool, vertical pouring channel communicating with a runner provided in the stool, metal receiver communicating with the top of the pouring channel, and a rotary table on which the mold is placed through the stool. The metal receiver is shaped like a body of rotation formed by rotating a curve having an opening at the top in a vertical plane about the axis of rotation of the rotary table.

Abstract: A shaft coupling is provided which has two hubs which are fixed, respectively, on the drive shaft and the driven shaft thereof, and which are connected with each other in the rotational direction by means of elastic elements such as coil springs, so that mutual misalignment between the drive shaft and the driven shaft is accommodated by free displacement of spring assemblies in spaces which are provided for receiving the spring assemblies, respectively in a disk-shaped member on the drive shaft and in the flanges of a spring assembly holder fixed on the hub on the driven shaft, whereby any shock produced by a change of load can be absorbed by the elastic elements and rotation of the drive shaft can be transmitted smoothly to the driven shaft.

Abstract: A flexible coupling, for transmitting a great amount of torque from a drive shaft to a driven shaft by directing tensile force to act on connecting members, includes a pair of hub members mounted respectively on the drive shaft and the driven shaft, each hub member having two flanges with a space therebetween in the axial direction of the hub member. Each flange has projections projecting in the radial direction of the flange, each projection peripherally adjoining void spaces. The hub members as a pair are so constructed as to enable the projections of the flanges of one hub member to fit into the void spaces of the flanges of the other hub member, leaving a clearance between any facing portions of the flanges of the facing hub members with no contact therebetween. Retaining members are provided, each such member extending parallel to the axis of the hub member and having both ends thereof supported by the projections of the two facing flanges of each of the facing hub members.

Abstract: A flexible coupling has a pair of hub members each having a flange and being connected, respectively, with a drive shaft and a driven shaft, and a main set mounted for free removal between the flanges of the respective hub members facing each other, said main set having a pair of disks and a plurality of connecting members, each connecting member being composed of connecting elements in the form of layers each made of resilient thin sheet material, the disks each having a plurality of pins fixed perpendicularly on the surface of the disk in an arrangement in which each two adjacent pins have an equal distance between them along the circumferential direction of the disks, the disks facing each other with the pins on each disk projecting toward the opposite disk so that the pins of the respective disks facing each other are arranged alternately side by side with an equal distance between any two adjacent pins, the connecting members being connected between adjacent pins to form polygonal links between the disks