British Patent

GB 2.687  Winter William. Improvements in sewing machines. The novelty consists in the combination of bell or boss-cam with plate-cam on the same shaft, and in the application thereof to an arrangement of levers or other connecting parts for working the needles and shuttles or other thread carriers of sewing machines. Printed, Is. 2d. Drawing.

                                                                                 September 24 , 1867

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