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A steering committee led the planning phase of the DPLA initiative from inception through its launch in 2013. Members of the project's Steering Committee included Harvard University's Robert Darnton, Maura Marx, and John Palfrey; Paul Courant of University of Michigan, Carla Hayden then of Baltimore's Enoch Pratt Free Library and subsequently the Librarian of Congress, Charles J. Henry of the ...
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. [4] [5] [6]
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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 shaft is usually made of ...
The Google Books Library Project, which scans works in the collections of library partners and adds them to the digital inventory, was announced in December 2004. The Google Books initiative has been hailed for its potential to offer unprecedented access to what may become the largest online body of human knowledge [ 6 ] [ 7 ] and promoting the ...
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All three patterns may also be combined with a slot for a flat-blade screwdriver. Usually they are provided with a 1/4 in (0.25 inches (6.4 mm)) flanged hex head. Non-standard metricized 5.5 millimetres (0.22 in) flanged hex heads can also be encountered. Also common are pan head screws - a low disk with a chamfered outer edge.
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