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  2. Balance wheel - Wikipedia

    en.wikipedia.org/wiki/Balance_wheel

    A balance wheel, or balance, is the timekeeping device used in mechanical watches and small clocks, analogous to the pendulum in a pendulum clock. It is a weighted wheel that rotates back and forth, being returned toward its center position by a spiral torsion spring , known as the balance spring or hairspring .

  3. White Family Rotary - Wikipedia

    en.wikipedia.org/wiki/White_Family_Rotary

    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. It was originally sold as a treadle ...

  4. Wheeler & Wilson - Wikipedia

    en.wikipedia.org/wiki/Wheeler_&_Wilson

    Wheeler and Wilson Number 3 Sewing Machine from about 1872. In 1852 Wilson patented his four-motion feed, which, as its name indicates, had four distinct motions: two vertical and two horizontal. [2] The machines' feed bar is first raised, then carried forward, then dropped, and finally gets drawn back by a spring to its original position. [2]

  5. Singer Model 27 and 127 - Wikipedia

    en.wikipedia.org/wiki/Singer_Model_27_and_127

    A sewing machine thus electrified now fit entirely inside a woman-portable carrying case. Electric motors became so common that Singer made provision for them: the model 127/128 'modernized' versions included mounting lugs for a motor, whereas earlier models had to be drilled and tapped.

  6. Sewing machine - Wikipedia

    en.wikipedia.org/wiki/Sewing_machine

    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 ...

  7. Allen B. Wilson - Wikipedia

    en.wikipedia.org/wiki/Allen_B._Wilson

    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 ...

  8. White Sewing Machine - Wikipedia

    en.wikipedia.org/wiki/White_Sewing_Machine

    Trade card, ca 1900. The White Sewing Machine was the first sewing machine from the White Sewing Machine Company. [1] It used a vibrating shuttle bobbin driver design. For that reason, and to differentiate it from the later White Family Rotary that used a rotary hook design instead, it came to be known as the "White Vibrating Shuttle" or "White VS".

  9. Verge escapement - Wikipedia

    en.wikipedia.org/wiki/Verge_escapement

    The verge escapement consists of a wheel shaped like a crown, called the escape wheel, with sawtooth-shaped teeth protruding axially toward the front, and with its axis oriented horizontally. [ 13 ] [ 36 ] In front of it is a vertical rod, the verge, with two metal plates, the pallets, that engage the teeth of the escape wheel at opposite sides.

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