This firm was active between 1913 and 1925, and possibly before and after that time. They made sensitive drill presses, which are machines for drilling small but precise holes.

Information Sources

• Thanks to Nick DeBenedetto for bringing this maker to our attention.
• In 1923 the company president was Grant Sipp, according to an entry in the Annual Report of the Silk Association of American dated February 15, 1923. This helps explain a passing 1913 reference we found to a "Grant Sipp Machine Co."
• The only patent we have found that was assigned to this company was a 1913 patent for a textile machine. We have also seen mentions of a lawsuit between Grant Sipp and an inventor, Charles A. Widmer, who was hired by Sipp to develop a sensitive drill for Sipp Machine Co. The patent in question seems to have been #1,424,538. The dispute was over who owned the rights to these patentable ideas created while Widmer was an employee of Sipp; the court, in a split decision, found that Sipp owned most of Widmer's patentable ideas, but certain ideas belonged to Widmer, in particular those related to planetary gearing that were "not a mere ancillary improvement on the regular machines of the company".
• The January 1915 issue of Machinery magazine had an article on Sipp Machine Co.'s new sensitive drill, whose primary selling features were easy speed changes and a belt that would last longer because it did not need to make any twists.