|U. Emmons, Wood Planing Machine, Patented, April 25, 1829.
PAtent No. 5467X. Top: Patent sheet. Below: Detail, rotated.
According to Jones (Planers, Matchers & Molders in
America by Chandler W. Jones) Uri Emmons built a carriage-fed
planer in 1824. The planer used knives mounted on rotating disks,
and cut on both the forward and reverse travel of the carriage.
It was, incredibly, hand-powered, and was known locally as the
"Flim-Flam," which isn't surprising given the limited
performance that could be expected from a hand-powered machine
of this size.
Emmons received patent no. X5,467 in 1829 for his wood planing
machine. According to an 1852 article in Scientific American,
Emmons's design was superior to the 1828 Woodworth design, and
in fact Woodworth's son had his father's patent reissued in
1845, incorporating Emmons's improvements. Check out patent
no. RE71 for some wonderfully clear drawings of this machine.
It is not clear whether Woodworth (or his estate) bought out
Emmons, or whether they simply used his ideas once the Emmons
patent had expired.
Jones, Chandles. Milestones
in Machining of Wood, Industrial Strength Woodworking.