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The Cincinnati Milling Machine Company was an American machine tool builder headquartered in Cincinnati, Ohio. Incorporated in 1889, the company was formed for the purpose of building and promoting innovative new machine tool designs, especially milling machines. The principals in forming the company were Frederick A. Geier and Fred Holz.
To depict the foundry industry, he visited the Modern Foundry to get ideas and set a scene for one of the murals, called Foundry and Machine Shop Products. In this mural, a man (modeled by Joseph Schwope, 1898–1980) is skimming a ladle of iron, while an iron pourer (modeled by Bill Rengering, 1901–1985) pours a mold.
Early Lufkin logo. The company was founded by Edward Taylor Lufkin, an American Civil War veteran of the Sixtieth Regiment Ohio Volunteer Infantry [1] in Cleveland, Ohio, 1869 [2] and was originally named E.T. Lufkin Board and Log Rule Manufacturing Company.
Brown & Sharpe is a division of Hexagon AB, a Swedish multinational corporation focused mainly on metrological tools and technology. During the 19th and 20th centuries, Brown & Sharpe was one of the best-known and most influential machine tool builders and was a leading manufacturer of instruments for machinists (such as micrometers and indicators).
Blade micrometers have a matching set of narrow tips (blades). They allow, for example, the measuring of a narrow o-ring groove. Pitch-diameter micrometers (aka thread mics) have a matching set of thread-shaped tips for measuring the pitch diameter of screw threads. Limit mics have two anvils and two spindles, and are used like a snap gauge ...
The trade name "Superior" under the Superior Trade Co. was first used in 1892 and manufacturing began in Springfield, Ohio. They imprinted in their advertising, "The Best in the World". American Civil War Capt. Edward Lyon Buchwalter was one of the organizers of the Superior Drill Company and president of the same from 1883 to 1903.
Rotating a bolt through two nuts with slightly different thread pitches for each changes the separation of the nuts by the difference between the threads. Micrometer adjuster with differential threads. The threads 11 on rod 4 have one pitch (e.g. 25 tpi, blue), while the threads 10 in the barrel 1 have another (e.g. 20 tpi, orange).
A thread gauge, [1] also known as a screw gauge [2] or pitch gauge, [3] is used to measure the pitch or lead of a screw thread. Thread pitch gauges are used as a reference tool in determining the pitch of a thread that is on a screw or in a tapped hole. This tool is not used as a precision measuring instrument, rather it allows the user to ...