摘要:
A braking device for a two-wheeler, such as bicycle which comprises a pair of left and right arms pivotally attached to a frame of the two-wheeler, each having on its distal end portion a brake shoe, and a spring for energizing the arms to move toward brake releasing direction. This braking device is characterized in that one of the arms is more strongly energized by the spring than the other arm is, and that a stopper is provided to restrict the extent of the movement of the strongly energized arm toward the brake releasing direction, so that, when arms are being set back to the unactuated original state, this strongly energized arm is stopped of its movement by the stopper before the other arm finally returns to its original state.
摘要:
A neovascularization promoting composition, a granulation formation-promoting composition and a preventive or curative composition for skin ulcer, comprising a human recombinant HGF wherein five amino acid residues are deleted in the first Kringle domain thereof. The provided compositions of the present invention are useful as a drug capable of promoting granulation formation and neovascularization and being effective in tissue restoration, especially as a preventive and curative agent for skin ulcer.
摘要:
A process for manufacturing high strength deep well casing, tubing, and drill pipes, which have improved resistance to stress corrosion cracking is disclosed. The process comprises the steps of preparing an alloy composition which is:______________________________________ C .ltoreq.0.05% Si .ltoreq.1.0% Mn .ltoreq.2.0% P .ltoreq.0.030% S .ltoreq.0.005% N 0-0.30% Ni 25-60% Cr 15-35% Mo 0-12% W 0-24% Cr (%) + 10Mo (%) + 5W (%) .gtoreq. 50% 1.5% .ltoreq. Mo (%) + 1/2W (%) .ltoreq. 12% Cu 0-2.0% Co 0-2.0% Rare Earths 0-0.10% Y 0-0.20% Mg 0-0.10% Ti 0-0.5% Ca 0-0.10% and incidental impurities balance; ______________________________________ applying, after hot working, the solid solution treatment to the alloy at a temperature of from the lower limit temperature (.degree.C.) defined by the following empirical formula: 260 log C(%)+1300 to the upper limit temperature (.degree.C. ) defined by the following empirical formula: 16Mo(%)+10W(%)+10Cr(%)+777 for a period of time of not longer than 2 hours; and applying cold working to the resulting alloy with a reduction in thickness of 10-60%. The hot working may be carried out with a reduction in thickness of 10% or more for the temperature range of not higher than the recrystallizing temperature thereof.
摘要:
A precipitation-hardening Ni-base alloy exhibiting improved resistance to corrosion under a corrosive environment containing at least one of hydrogen sulfide, carbon dioxide and chloride ions and method of producing the same are disclosed. The alloy is of the .gamma."-phase, or (.gamma.'+.gamma.")-phase precipitation hardening type in which Ti is restricted to less than 0.40% and is comprised of:C: not greater than 0.050%,Si: not greater than 0.50%,Mn: not greater than 2.0%,Ni: 40-60%,Cr: 18-27%,Ti: less than 0.40%,Mo: 2.5-5.5% and/or W: not greater than 11%, t 2.5%.ltoreq.Mo+1/2W.ltoreq.5.5%,Al: not greater than than 2.0%,Nb: 2.5-6.0% and/or Ta: not greater than 2.0%, 2.5%.ltoreq.Nb+1/2Ta.ltoreq.6.0%.
摘要翻译:公开了一种在包含硫化氢,二氧化碳和氯化物离子中的至少一种的腐蚀环境下具有改善的耐腐蚀性的沉淀硬化Ni基合金及其制造方法。 该合金是γ“相,或(γ'+γ”)相沉淀硬化型,其中Ti限制在小于0.40%,由以下组成:C:不大于0.050%,Si: 不大于0.50%,Mn:不大于2.0%,Ni:40-60%,Cr:18-27%,Ti:小于0.40%,Mo:2.5-5.5%和/或W:不大于11 %,t 2.5% = Mo + 1 / 2W <5.5%,Al:不大于2.0%,Nb:2.5-6.0%和/或Ta:不大于2.0%,2.5% Nb + 1 / 2Ta <6.0%。
摘要:
A holder for pulling-up wire in a center pull type caliper brake for a bicycle. The holder has an upper portion with a wire screw and a hook portion at the lower portion for hooking a pulling-up wire. A pair of finger members projecting from the holder member on both sides of the hook portion and a guide member serve to pull up wire from the hook portion.
摘要:
A braking device for a two-wheeler, such as bicycle which comprises a pair of left and right arms pivotally attached to a frame of the two-wheeler, each having on its distal end portion a brake shoe, and a spring for energizing the arms to move toward brake releasing direction. This braking device is characterized in that one of the arms is more strongly energized by the spring than the other arm is, and that a stopper is provided to restrict the extent of the movement of the strongly energized arm toward the brake releasing direction, so that, when arms are being set back to the unactuated original state, this strongly energized arm is stopped of its movement by the stopper before the other arm finally returns to its original state.
摘要:
An alloy useful for manufacturing high strength deep well casing, tubing and drill pipes for use in oil-well operations is disclosed. The alloy exhibits improved resistance to stress corrosion cracking in the H.sub.2 S-CO.sub.2 -Cl.sup.- environment, which comprises the following alloy composition:______________________________________ C: .ltoreq.0.1% Si: .ltoreq.1.0% Mn: .ltoreq.2.0% P: .ltoreq.0.030% S: .ltoreq.0.005% N: 0-0.30% Ni: 30-60% Cr: 15-35% Mo: 0-12% W: 0-24% Cr(%) + 10Mo(%) + 5W(%) .gtoreq. 110% 7.5% .ltoreq. Mo(%) + 1/2W(%) .ltoreq. 12% Cu: 0-2.0% Co: 0-2.0% rare earths: 0-0.10% Y: 0-0.20% Mg: 0-0.10% Ca: 0-0.10% one or more of Nb, Ti, Ta, Zr and V in the total amount of 0.5-4.0%, if necessary Fe and incidental impurities: balance. ______________________________________
摘要:
Apparatus for attaching a stay for a brake lever to a handle bar of a bicycle in which a non-ferrous metal or synthetic resin stay pivotably supports a brake lever through a pivot shaft by a fastening band mounted in a cavity portion formed in the bottom of the stay. A spacer is mounted within the cavity portion and has first support elements for abutting against the handle bar and second support elements for engaging the pivot shaft such that when the band is secured to the pivot shaft frictional engagement is obtained between the first supporting elements and the handle bar and the stay becomes secured to the handle bar through the spacer.
摘要:
A neovascularization promoting composition, a granulation formation-promoting composition and a preventive or curative composition for skin ulcer, comprising a human recombinant HGF wherein five amino acid residues are deleted in the first Kringle domain thereof. The provided compositions of the present invention are useful as a drug capable of promoting granulation formation and neovascularization and being effective in tissue restoration, especially as a preventive and curative agent for skin ulcer.