A bookbinders paper trimmer patented August 25, 1857, by John Toulmin of (near) Worcester, Mass. The patent for a "bookbinder's vibrating shears" was granted for the adjustable pivot bearings for the knife which allows precise adjustment in relation to the stationary blade.
The attractive cast iron base measures 15" x 12". The blade will cut 12" and the fence slides back to cut 7 1/2" wide. A large thumb screw locks the iron fence which rides in a slot in the table. The heavy blade is sharp and cuts paper well.
closeup of patent date on cast iron base
the patented mechanism for blade adjustment
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