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Hyatt Roller Bearing Company was a manufacturer of roller bearings from 1892 to 1916, when it was acquired by General Motors. It continued as a distinct division of GM for many years. The company struggled at first, then entered a phase of profitable growth under the leadership of Alfred P. Sloan (later president of General Motors). The innovative design of Hyatt's roller bearings made them more durable and efficient than others. They were widely used in early automobiles by various manufacturers, and in industrial vehicles and equipment. ==Foundation== John Wesley Hyatt was a printer by trade and a prolific inventor who secured over 250 patents, the first issued in 1861 for a knife grinder. His chemical experiments led to the invention of celluloid. In 1888 he was working on a mill for crushing sugar cane, but lacked adequate bearings. His solution was a roller bearing where the rollers were made from coiled strips of steel, and he patented his invention. The helical-shaped rollers made from flat spring steel were more flexible than solid-cylinder rollers, did not heat up and lock due to friction, and lasted longer. Later Hyatt introduced refinements, with the bearings assembled within a closed cage. Seeing broad potential for the invention, he founded the Hyatt Roller Bearing Company in 1892. The company was originally based in Newark, New Jersey, but soon moved to Harrison, New Jersey. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hyatt Roller Bearing Company」の詳細全文を読む スポンサード リンク
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