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Screwdriver bits in different sizes for Robertson screws When Henry Ford tried the Robertson screws, he found that they saved considerable time in Model T production. When Robertson refused to license the design, Ford realized that the supply of screws would not be guaranteed, and chose to limit their use to his Canadian division.
The Library of America [4] (LOA) is a nonprofit publisher of classic American literature.Founded in 1979 with seed money from the National Endowment for the Humanities and the Ford Foundation, the LOA has published more than 300 volumes by authors ranging from Nathaniel Hawthorne to Saul Bellow, Frederick Douglass to Ursula K. Le Guin, including selected writing of several U.S. presidents.
A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. This form of the screwdriver has been replaced in many workplaces and homes with a more modern and versatile tool, a power drill, as they are quicker, easier, and can also drill holes.
The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers , with several other models, and model improvements patented by North Bros. over a 40-year ...
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The company made its first screwdrivers in 1834 but stopped in 1840, instead selling the handles and blades to smaller companies made at the Pratt, Read and Company Factory Complex. During World War II, the company continued producing screwdriver blades and suspended production of piano parts to manufacture Waco CG-4 gliders for the military. [5]
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