Patent Model - Improvement in Saw-Swages
Maker and role
Andrew McCollum (b.1829, d.1912), Patentee
George Emery (b.1833, d.1909), Patentee
Production date
Aug 05 1873
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Object detail
Media/Materials
Cast iron
Measurements
2 x 11 x 1 7/8" (5.1 x 27.9 x 4.8cm)
Description
McCollum and Emery's invention "has for its object to furnish an improved attachment for a saw-swage, by means of which the swage will be held perfectly square across the tooth, so as to make all the cutting-points exactly alike, and thus enable the saw to be filed much more quickly than it could otherwise be done. The invention consists in the guide-arms connected at their upper ends by a back, and pivoted to the stock of the swage, and in the combination of the set-screw with the guide pivoted to the stock of the swage..." (Patent Number 141,572)
Collection
Object number
2015.14.1605a,b
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