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Cummings Machine Works
Cummings Machine Works was a Boston, Massachusetts based business which was awarded a United States Defense Department contract to manufacture fixtures in March 1941. The contract amounted to $17,893.〔''$5,954,308 More Defense Contracts Are Announced'', Wall Street Journal, March 12, 1941, pg. 6.〕 The company was among the firms which contributed to the building of the Boston Opera House. It was completed in 1909.〔''Monograph of the Boston Opera House'', Internet Archive webpage.〕
Cummings Machine Works has been credited with the development of the ''Sally Saw''. Employees of the company conceived of a method whereby a logger could cut down a tree with a horizontal cut, then shut down the saw. Next he would turn the blade a quarter turn (90 degrees). He could restart the saw to make the necessary vertical cuts. The process was cumbersome yet a lot easier and quicker than an axe or a two-man crosscut saw.〔''Smokstak (Antique Gas Engine Bulletin Board) webpage, internet posting.〕
Last owners were Robert M. Mustard, Sr., Pres., and Lewis W. Mustard, Treas. Last known address was 10 Melcher Street in Boston, MA. Went out of business in 1958.
Other inventions included a hydraulic hospital bed, automatic doughtnut machine, teardrop vehicle and Hookups.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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