Beckwith's Patents.
W.G.Beckwith's
1871 design had simplicity and low cost as criteria priorities.
The ring-pull drive, however, proved a step too far. |
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A
coming-of-age of the design was realised in the 1874 patent. The
machine remained a table clamp model, but now incorporated a sophisticated
needle alignment facility, which allowed a more reliable stitch
length adjustment. |
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