翻訳と辞書
Words near each other
・ Vibrant Gujarat
・ Vibrant Technologies
・ Vibrant TV Network
・ Vibraphone
・ Vibraslap
・ Vibrasphere
・ Vibrate
・ Vibrate (album)
・ Vibrate You
・ Vibratese
・ Vibratex
・ Vibrating alert
・ Vibrating feeder
・ Vibrating Palm (disambiguation)
・ Vibrating sample magnetometer
Vibrating shuttle
・ Vibrating string
・ Vibrating structure gyroscope
・ Vibrating wire
・ Vibration
・ Vibration (radio)
・ Vibration Calibrator
・ Vibration control
・ Vibration Cooking
・ Vibration fatigue
・ Vibration galvanometer
・ Vibration isolation
・ Vibration of plates
・ Vibration of rotating structures
・ Vibration theory of olfaction


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Vibrating shuttle : ウィキペディア英語版
Vibrating shuttle
A vibrating shuttle is a bobbin driver design used in home lockstitch sewing machines during the second half of the 19th century and the first half of the 20th century. It supplanted earlier ''transverse'' shuttle designs, but was itself supplanted by ''rotating'' shuttle designs.
==Overview==

In order to create a lockstitch a sewing machine intertwines two threads: an upper thread (descending with the needle into the workpiece from above) and a lower thread (ascending into the workpiece from the bobbin below). To intertwine them, the machine must pass its shuttle (containing the bobbin and the lower thread) through a loop temporarily created from the upper thread.
Early sewing machines of the 19th century oscillate their shuttles back and forth on horizontal tracks—an arrangement called a "transverse shuttle". A ''vibrating'' shuttle machine, by contrast, 'vibrates' its shuttle in a circular arc. This movement represents less total mechanical motion, which means less friction, less wear, higher maximum speed, and higher reliability than in a transverse shuttle system.〔See text of this 1920s advertising card from Singer: http://commons.wikimedia.org/wiki/File:Singer.1920sAdvertisingFolder.back.jpg〕
The shuttle itself is long and slender, shaped like a bullet, with a pointed tip that is sometimes called the hook. The tip is pointed for the purpose of intercepting the small loop temporarily created (by a brief upward needle motion) in the upper thread—see pictures below of its operation. The bobbin too is long and slender to fit inside the shuttle; in this regard it is very different than the fat rotary bobbins of later sewing machines.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Vibrating shuttle」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.