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The rotary hook or rotating hook is a bobbin driver design used in lockstitch sewing machines since the 19th century. It triumphed over competing designs because it can run at higher speeds with less vibration. Rotary hooks and oscillating shuttles are the two most common bobbin drivers in use today.
Elna's drop-in rotary hook runs with little movement or noise, unlike oscillating shuttle machines popular at the time, which require a bobbin case and vibrate at high speeds due to air resistance. Casas also recognized that "when a woman finishes sewing she wants to get the machine out of the way," [ 4 ] so Elna was designed to be portable and ...
Bobbin (right) and bobbin case for a shuttle hook sewing machine, introduced by Singer for the "Improved Family" model in 1895 The lockstitch sewing machine, invented and developed in the 18th and 19th centuries [ 10 ] [ 11 ] , forms a stitch with two threads: one passed through a needle and another from a bobbin.
Meanwhile, the lower thread is wound onto a bobbin, which is inserted into a case in the lower section of the machine below the material. To make one stitch, the machine lowers the threaded needle through the cloth into the bobbin area, where a rotating hook (or other hooking mechanism ) catches the upper thread at the point just after it goes ...
1851 by Allen B. Wilson [8] Figures from Wilson's patent 9041, showing rotary hook and bobbin: Rotary hook machines hold their bobbin stationary, and continuously rotate the thread hook around it. The design was popularized in the White Sewing Machine Company's 'Family Rotary' sewing machine [9] and Singer's models 95 and 115. [10]
The Pine Sewing Machine factory was founded on 16 October 1921. In 1935, the Janome trademark was established, and the company was renamed to Janome Sewing Machine Co., Ltd. in 1954. [3] In the USA, its subsidiary is Janome America located in Mahwah, New Jersey; it also owns the Swiss brand Elna. The company manufactures all of its machines in ...
Meanwhile the bobbin winder has a separate belt: the models 27 and 28 drive the bobbin winder using a long round or V belt to the motor, whereas the 'modernized' models 127 and 128 drive the bobbin winder directly off the handwheel by means of a small "ring belt" or "bobbin belt" acting as a tire.
The White Family Rotary or White FR, later White Rotary or White Rotary Electric, was the first rotary hook sewing machine produced by the White Sewing Machine Company, introduced circa 1900. [1] It joined the successful White Vibrating Shuttle on White's expanding product line and eventually eclipsed it.
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