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The 1950s and 1960s were an era of performance research. CP drill bits broke depth records approaching 20,000 feet and were used in oil prospecting. The portable broach puller for aircraft rivets was introduced in 1957. [6] A Chicago Pneumatic electric motor played a role in the U.S. Apollo space mission to the Moon. [7]
In January 1858, the first masonry building in Chicago to be thus raised—a four-story, 70-foot-long (21 m), 750-ton (680 metric tons) brick structure situated at the north-east corner of Randolph Street and Dearborn Street—was lifted on two hundred jackscrews to its new grade, which was 6 feet 2 inches (1.88 m) higher than the old one, “without the slightest injury to the building.” [9 ...
Jack which can lift a mobile home. A jack is a mechanical lifting device used to apply great forces or lift heavy loads. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic power. [1] The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be ...
Screw jacks have now largely been replaced by hydraulic jacks. This was encouraged in 1858 when jacks by the Tangye company to Bramah's hydraulic press concept were applied to the successful launching of Brunel's SS Great Eastern, after two failed attempts by other means. The maximum mechanical advantage possible for a hydraulic jack is not ...
Richard Dudgeon (1819, Tain – 9 April 1895, New York City) [1] was a mechanic, noted for his inventions of the hydraulic jack and steam carriage. Born in Scotland, [2] he emigrated as a boy with his family to the United States, where he became a mechanic in New York.
Blackhawk also produced Blackhawk Jack brand floor jacks under the Blackhawk Mfg. Co. name including a handy 1-1/2 Ton heavy steel wheeled model. [10] In the early 1950s, the Blackhawk hand tool line was acquired by the New Britain Machine Company. In the 1970s, Litton Industries purchased New Britain. In the 1980s, National Hand Tool acquired ...
Mi-Jack Products is an American manufacturer of industrial, intermodal, and port cranes based in Hazel Crest, Illinois. [1] It manufactures Travelift and Translift rubber-tired gantry cranes , as well as various other container handling systems [ 2 ] and is a part of the Lanco Group of Companies.
The company was founded in the early 20th century to supply munitions in World War I, and made mortar housings in a screw machine plant on Harrison Street in Chicago. During the 1920s SK operated primarily as a contract company, making tools for other brands (including Craftsman ). [ 3 ]
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