The medallion (figures 2, 3 & 4) and the saw screw (figure 5) shown in Glover's patent drawings both feature the internally threaded construction patented by Henry Disston in 1876 (U. This form displaces the through screw and "split nut" arrangement which had been the norm.- Significance: The former Simonds Manufacturing Company complex is significant for its historical role in the industrial development of Fitchburg, a noted manufacturing center in the late 19th and early 20th centuries.In addition to textiles and paper manufacturing, Fitchburg had a thriving metal-goods sector that included machine shops and railroad repair facilities; saw production at Simonds Manufacturing was probably the largest specific activity within the overall metalworking category.In 1905, the Company undertook a complete reconstruction of the Fitchburg plant, at which time most of the existing buildings were erected.
In a sense, it can be seen as an improvement on Munger's patent (U. The large show surface of Glover's medallion, in conjunction with the shoulder beneath it, allowed for the addition of longitudinal ribs on the shaft of the screw to resist turning. Also, though not specified in the patent, the shafts of Glover's saw nuts were of stouter construction. Saw medallions with this patent date have been found on saws from a wide variety of saw manufacturers.
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Simonds Canada closed the outdated Montreal facility and moved to this new Granby facility in June of 1960, transferring 200 employees and their families to the Granby area. The old Montreal facility was sold off in November 1960.
The Granby plant produced the majority of Simonds products sold in Canada until it was closed in 1988 and production consolidated into the Fitchburg Mass facility.