Patent Model - Improvement in Peat-Machines

Maker and role
Leander Boynton (b.1813), Patentee
Production date
Jan 27 1874
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Object detail

Wood, brass
6 1/2 x 14 x 6" (16.5 x 35.6 x 15.2cm)
Boynton's patent describes the problem as "the principal difficulty heretofore experienced in converting peat into a useful fuel has been the impossibility of drying it with sufficient rapidity by the usual methods." His improvement uses "principally in a centrifugal machine adapted to operate upon wet peat...and employment of hot air..." (Patent Number 146,746)
Object number
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