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A manual prism sharpener generates long fan-shaped shavings Video of a mechanical pencil sharpener, showing gearing and helical sharpening blades video showing a manual prism sharpener A pencil sharpener (or pencil pointer , or in Ireland a parer or topper [ 1 ] ) is a tool for sharpening a pencil 's writing point by shaving away its worn surface.
These machines usually have pedals for speeding up and slowing down the stone to control the sharpening process. The earliest known representation of a rotary grindstone, [6] operated by a crank handle, is found in the Carolingian manuscript known as the Utrecht Psalter. This pen drawing from about 830 goes back to a late antique original. [7]
Antique Woodworking Tools: Their Craftsmanship from the Earliest Times to the Twentieth Century Cambridge: John Adamson ISBN 978-1-898565-05-5 OCLC 727125586; Salaman, R.A. (1996). Dictionary of Leather-working Tools, c. 1700–1950, and the Tools of Allied Trades Mendham, NJ: Astragal Press ISBN 978-1-879335-72-1
Knife sharpener in Kabul, Afghanistan (1961) The Knife Grinder by Massimiliano Soldani (c.1700), Albertinum, Dresden A railway camp cook sharpens a knife blade on a stone wheel, 1927. Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, [1] or a flexible surface ...
American Restoration is an American reality television series airing on the History channel. Produced by Leftfield Pictures, the series is filmed in Las Vegas, Nevada, where it chronicles the daily activities at Rick's Restorations, an antique restoration store, with its owner Rick Dale, his staff, and teenage son, as they restore various vintage items to their original condition.
A wide array of edge and boring tools provides a broad survey of hand tool-making from prehistory to today. Writing in The Times, Huon Mallalieu encapsulated the function of the book: "Over the past 35 years [David Russell] has amassed probably the world’s largest collection of antique woodworking tools from the Stone Age to the 20th century ...
Thiers Issard Le Thiernois Sheffield silver steel, mirror-finished, singing, 5/8 inch blade, fully hollow ground, round-nose razor with decorated 24k gold-inlaid blade, fluted shank, double stabiliser, and double-pin, blonde horn scales. A straight razor is a razor with a blade that can fold into its handle.
According to F. Lisheng and T. Qingjun, the hand-crank of the rotary quern was different from a crank, which was the combination of a hand-crank and a push-and-pull connecting rod by a hinge. [ 7 ] The Antikythera mechanism, dated to around 200 BC, [ 25 ] [ 26 ] used a crank as a part of its mechanism. [ 27 ]