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The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand. It was affectionately known as the "pepper grinder" or "peppermill" due to its shape and means of operation; its superficial resemblance to a certain type of hand ...
Curt Herzstark (January 26, 1902 – October 27, 1988) was an Austrian engineer. During World War II , he designed plans for a mechanical pocket calculator (the Curta ). Life and career
A file is a tool used to remove fine amounts of material from a workpiece. It is common in woodworking , metalworking , and other similar trade and hobby tasks. Most are hand tools , made of a case hardened steel bar of rectangular, square, triangular, or round cross-section, with one or more surfaces cut with sharp, generally parallel teeth.
A hand tool is any tool that is powered by hand rather than a motor. [1] Categories of hand tools include wrenches, pliers, cutters, files, striking tools, struck or hammered tools, screwdrivers, vises, clamps, snips, hacksaws, drills, and knives. Outdoor tools such as garden forks, pruning shears, and rakes are
Husky is a line of hand tools, pneumatic tools, and tool storage products. Though founded in 1924, it is now best known as the house brand of The Home Depot , where it is exclusively sold. Its hand tools are manufactured for Home Depot by Western Forge , Apex Tool Group , and Iron Bridge Tools. [ 1 ]
A McLeod tool (or rakehoe) is a two-sided blade — one a rake with coarse tines, one a flat sharpened hoe — on a long wooden handle. It is a standard [1] tool during wildfire suppression and trail restoration. [2] The combination tool was created in 1905 by Malcolm McLeod, a United States Forest Service ranger at the Sierra National Forest ...
A tool is considered low velocity if the average test velocity of the fastener is not in excess of 300 ft/s (91 m/s) with no single test having a velocity of over 108 m/s (350 ft/s). [1] A high velocity tool propels or discharges a stud, pin, or fastener in excess of 300 ft/s (91 m/s). [1]
Proto Tools (formally Stanley Proto) is an American industrial hand tool company. Founded as Plomb , it is presently a division of Stanley Black & Decker . The company is credited with creating the first combination wrench in 1933.