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Although there is no model number on this rule, it was sold as model 367 from 1905 to 1913. This slide rule reflects the rich intermixture of cultures that characterizes the American mathematical community. Archibald (1875–1955), a Canadian born in Nova Scotia. Faber's calculating rule," the form of the slide rule catalogued here.
Because of the flat bottom to the hole, they are useful for drilling through veneer already glued to add an inlay.
Forstner bits were invented and patented by Benjamin Forstner in 1874.
1874 Forstner bit Forstner bits, also known as Forstner flange bits or webfoot augers, bore precise, flat-bottomed holes in wood, in any orientation with respect to the wood grain.
Forstner bits can cut on the edge of a block of wood, and can cut overlapping holes.
1874 Spork A spork or a foon is a hybrid form of cutlery taking the form of a spoon-like shallow scoop with three or four fork tines. A jockstrap consists of a waistband (usually elastic) with a support pouch for the genitalia and two elastic straps affixed to the base of the pouch and to the left and right sides of the waistband at the hip.
The spork is a portmanteau word combining spoon and fork. The jockstrap has been part of men's undergarments since 1874 when it was invented by C. Bennett of Chicago to protect and support bicycle riders (back then they were known as "jockeys") who were navigating the cobblestone streets common to the era. Then, like several other late 19th- and early 20th-century North American mathematicians, Archibald traveled to Germany, spending the academic year 1898–1899 at the University of Berlin and 1899–1900 at the University of Strasbourg. Archibald then returned to Canada, where he taught for several years before joining the faculty of Brown University in Providence, R. He remained at Brown for the rest of his academic career. The firm was renamed Faber-Castell in 1905, although instruments continued to be marked "A. He began his college education in Canada and completed a bachelor's and a master's degree from Harvard University in Cambridge, Mass. in Strasbourg in 1900 and may have purchased this slide rule near the end of this European sojourn. This work is undated, but it refers to a prize awarded to Faber at the Exposition universelle held in Paris in 1900. My rule is complete with leather slip case which has a promotional logo transfer on it for Weigel Optik vorm. To view United States inventions from other historical time periods, please see Timeline of United States inventions (1890–1945), Timeline of United States inventions (1946–1991), and Timeline of United States inventions (after 1991).Early Levis, called "waist overalls", came in a brown canvas duck fabric and a heavy blue denim fabric.His business became extremely successful, revolutionizing the apparel industry.Underneath the slide is a third centimeter scale, numbered from 30 to 55. The rule is in a cardboard case covered with black leather. Also known as a Janney coupler and the buckeye coupler, the knuckle coupler is the derivative of a coupling device that links and connects rolling railway cars such as passenger, refrigerator, freight, and stock cars together on railroad track.The knuckle coupler have a bifurcated drawhead and a revolving hook, which, when brought in contact with another coupler, automatically interlocks with its mate.