Patent Model - Improvement in Machines for Bending and Folding Sheet-Metal

Maker and role
James Clark (b.1844, d.1883), Patentee
Lucas Clark (b.1845, d.1922), Patentee
Production date
Dec 14 1869
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Object detail

Cast iron, steel, paint
10 1/2 x 12 1/4 x 8" (26.7 x 31.1 x 20.3cm)
This invention "consists in the use or employment of two swinging brakes, in combination with a folding-plate, and also in the arrangement of a part of the upper brake, so that it receives a circular and vertical motion in turning an open lock." (Patent Number 97,762)
Object number
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