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To solve this issue, a standing desk may either be custom-made, to suit the height of the user, or made with adjustable parts. For writing or drafting, the angle or slant of the surface may be adjustable, with a typical drawing table or table à la tronchin. If the desk is made for computer use, the legs may be adjustable. Another option is a ...
A lift table is a device that employs a scissors mechanism [1] to raise or lower goods and/or persons. Typically lift tables are used to raise large, heavy loads through relatively small distances. Typically lift tables are used to raise large, heavy loads through relatively small distances.
The modern 3-segment adjustable hospital bed was invented by Willis Dew Gatch (1877-1962), chair of the Department of Surgery at the Indiana University School of Medicine, in 1909. [5] This type of bed is sometimes referred to as the Gatch Bed. [6] The crank was added by Henry Ford. [6]
#27 Adjustable Mannequin, From Page 433 Of Official Descriptive And Illustrated Catalogue Of The Great Exhibition 1851 The fact that something invented over 150 years ago can still seem ingenious ...
The bottom stage legs of the adjustable height tripod are reversible, allowing for a choice of either rubber feet or ground spikes. Mitchell studio camera (c.1930s) with hand crank, take-up drive belt and "Mickey Mouse ears" film magazine
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]