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  2. Circular saw - Wikipedia

    en.wikipedia.org/wiki/Circular_saw

    The modern-day circular saw was invented around the end of the 18th century as a rip-saw to convert logs into lumber in sawmills and various claims have been made as to who invented it. Before the design was invented, logs were sawn by hand using a pit saw or using powered saws in a sawmill using an up-and-down saw with a reciprocating motion .

  3. Edmond Michel - Wikipedia

    en.wikipedia.org/wiki/Edmond_Michel

    This was the first electric circular saw. After a New Orleans newspaper ran an article about Michel's invention, he was approached by Joseph W. Sullivan. The two became business partners and moved to Chicago. In 1924, they were granted a patent for the Michel Electric Hand Saw. Attracting immediate interest from contractors despite numerous ...

  4. Timeline of United States inventions (before 1890) - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    1813 Circular saw. The circular saw is a metal disc or blade with saw teeth on the edge as well as the machine that causes the disk to spin. It may cut wood or other materials and may be hand-held or table-mounted. Tabitha Babbitt is credited with inventing the first circular saw used in a saw mill in 1813. [25] [56] 1815 Dental floss

  5. 18th century - Wikipedia

    en.wikipedia.org/wiki/18th_century

    1777: Circular saw invented by Samuel Miller; 1779: Photosynthesis was first discovered by Jan Ingenhousz; 1781: William Herschel announces discovery of Uranus; 1784: Bifocals invented by Benjamin Franklin; 1784: Argand lamp invented by Aimé Argand [32] 1785: Power loom invented by Edmund Cartwright; 1785: Automatic flour mill invented by ...

  6. Tabitha Babbitt - Wikipedia

    en.wikipedia.org/wiki/Tabitha_Babbitt

    The circular saw was connected to a water-powered machine to reduce the effort to cut lumber. [ 4 ] [ 5 ] The first circular saw she allegedly made is in Albany , New York . [ 6 ] In the summer of 1948, a version of Babbitt's saw, built to her specifications, was on display at a Shaker exhibit at Fenimore House in Cooperstown, N. Y., as a loan ...

  7. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_historic...

    [482] [484] Libby and James Arnold succeeded with the radiocarbon dating theory after results were published in Science in December 1949. [485] [486] 1946: James Martin invents the ejector seat, inspired by the death of his friend and test pilot Captain Valentine Baker in an aeroplane crash in 1942. 1947: Holography is invented by Dennis Gabor.

  8. Skil - Wikipedia

    en.wikipedia.org/wiki/Skil

    SKIL can trace its heritage to the invention of the circular saw by Edmond Michel in 1924, which led to the development of the SKILSAW circular saw Model 77 in 1937. Now referred to as “the saw that built America,” the Model 77 set the industry standard for handheld worm-drive circular saws which remains in production almost unchanged today ...

  9. Georg Gottfried Gervinus - Wikipedia

    en.wikipedia.org/wiki/Georg_Gottfried_Gervinus

    Arraigned before a tribunal, Gervinus defended himself with a great display of ability and courage, but was nevertheless condemned to an imprisonment of two months, and all the copies of the "seditious publication" were to be destroyed. However, the verdict was rescinded by a higher tribunal.

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