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Steven
says...What is a gear,
what are teeth?
DIRECTLY
ABOVE AT THE
TOP OF THE
HOLE the key
way was cut
with a chisel p in
the 1880s-90s
Note.........
The 1880's
-1890s
gear to
the right,
the Gear
teeth
were cut
one side
at a time
by a
GLEASON
spur and
Bevel
Gear
planer.
Click Below for how
to draw some geat
teeth Via I.C.S. 1908
Gears,
my favorite subject,
all about them.
