1 0 0 0 OA 昭和初期におけるわが国の限界ゲージ方式の発達過程
In this report, a history of limit gauge system in Japan is chiefly investigated from 1930 to 1945. In Japan, the limit gauge system has been applied in machine shop since 1914. Nevertheless, this method had not fixed completely in many machine shops till 1945. When workers assembled the parts into a complete machine, parts were fitted by using jointly hand finishing. After the second World War, the limit gauge system has fixed in machine shops. In this background, it may be that special procurements of the United States armed forces compelled to use of limit gauge. In addition to, experience with mass production of machines in the second World War may also exist.