TITLE: Calculating Machine INVENTOR: William Burroughs YEAR: 1888 PRINT#: B8116 Burroughs invented the first practical adding and listing machine. In 1886 Burroughs and several St. Louis businessmen formed the American Arithmometer Co. to market the machine. The first machine, however, required a special knack in pulling the handle to execute the calculation correctly. More often than not novice users would get wildly differing sums depending on the vigor they employed in using the invention. In 1893 Burroughs received a patent for an improved calculating machine, which incorporated an oil-filled 'dashpot,' a hydraulic governor. This device enabled the machine to operate properly regardless of the manner with which the handle might be pulled.Reproduction of the original patent artwork and application submitted by William Burroughs to the US Patent & Trademark Office in 1888 Size is 16x20Art is printed on premium, heavyweight art paper Print is delivered rolled in a protective mailing tubeMakes a great accountant math gift! 16x20 Print-Only Sized for a standard frame Giclee art printed on heavy-weight, fine art paper Delivered rolled in protective tube Also available double-matted and framed
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