Singer Sewing Machine Screw Threads
There is often confusion about the various screw threads used on Singer sewing machines. When production was first started there were no national or international standards for manufacturing and so companies like Singer used whatever diameters and thread pitches they felt were convenient for them. In an effort to simplify things and to allow interchangeability most countries gradually introduced national standards for basic items such as screw threads. In the case of the USA, this was known as the American National Thread. 1949 saw a move from national standards to international ones when the major countries using imperial measurements (USA, Canada, UK etc.) agree the 'Unified' thread system, which remains effective to this day. The Unified thread system largely utilised the existing American National thread sizes but with a limited number of diameters coupled with series of Coarse, Fine and Extra Fine pitches.
Because Singer factories manufactured all of their own components it was not as important for them to ensure standardisation of items from different suppliers. Although many older Singer threads matched those of the American and then Unified standards, they continued to use some sizes that were non-standard in order to maintain backward compatability between parts that were common to different models.
CAUTION - The following data is believed to be correct and is provided in good faith. However, with so much data there is always the possibility of errors creeping in, so before using it for anything important, please be sure to check it yourself.
結果 (
日本語) 1:
[コピー]コピーしました!
Singer Sewing Machine Screw ThreadsThere is often confusion about the various screw threads used on Singer sewing machines. When production was first started there were no national or international standards for manufacturing and so companies like Singer used whatever diameters and thread pitches they felt were convenient for them. In an effort to simplify things and to allow interchangeability most countries gradually introduced national standards for basic items such as screw threads. In the case of the USA, this was known as the American National Thread. 1949 saw a move from national standards to international ones when the major countries using imperial measurements (USA, Canada, UK etc.) agree the 'Unified' thread system, which remains effective to this day. The Unified thread system largely utilised the existing American National thread sizes but with a limited number of diameters coupled with series of Coarse, Fine and Extra Fine pitches.Because Singer factories manufactured all of their own components it was not as important for them to ensure standardisation of items from different suppliers. Although many older Singer threads matched those of the American and then Unified standards, they continued to use some sizes that were non-standard in order to maintain backward compatability between parts that were common to different models.CAUTION - The following data is believed to be correct and is provided in good faith. However, with so much data there is always the possibility of errors creeping in, so before using it for anything important, please be sure to check it yourself.
翻訳されて、しばらくお待ちください..
