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Pitman arm Steering box, with the pitman arm just visible beneath. A Pitman arm is a shaft that translates rotary or angular movement into linear movement, or vice versa. Pitman arms are commonly found in water pumping windmills, automotive steering systems, and sewing machines. In windmills, the Pitman arm connects the driving gear to the ...
Charles Fredrick Wiesenthal (1726–1789) [1] was a German-American physician and inventor who was awarded the patent for the first known mechanical device for sewing in 1755. Weisenthal was born in the Kingdom of Prussia, but lived in England at the time of invention. He lived from 1755 to 1789 in Baltimore. [1]
Barthélemy Thimonnier (19 August 1793 in L'Arbresle, Rhône - 5 July 1857 in Amplepuis) was a French inventor, who is attributed with the invention of the first sewing machine that replicated sewing by hand. He was born in L'Arbresle, in Rhône in France.
When combined with a connecting rod, it can be used to convert circular motion into reciprocating motion, or vice versa. The arm may be a bent portion of the shaft, or a separate arm or disk attached to it. Attached to the end of the crank by a pivot is a rod, usually called a connecting rod (conrod).
Allen Benjamin Wilson (1823–1888) was an American inventor famous for designing, building and patenting some of the first successful sewing machines. [1] He invented both the vibrating and the rotating shuttle designs which, in turns, dominated all home lockstitch sewing machines. With various partners in the 19th century he manufactured ...
The first machine to combine all the disparate elements of the previous half-century of innovation into the modern sewing machine was the device built by English inventor John Fisher in 1844, a little earlier than the very similar machines built by Isaac Merritt Singer in 1851, and the lesser known Elias Howe, in 1845. However, due to the ...