15
Knife Eraser
U. S. Patent Number 322, 991 was granted
to Frank L. Stowell of New York City for
his
“
Knife Eraser
”
on July 28, 1885.
Referring to the patent drawing we learn
that Stowell
‟
s tool includes a sharp edge for
pen making or general cutting (G), an ink
eraser edge (E), a notch used for pencil
sharpening (D), a file surface for
sharpening the lead of a pencil (C), a handle
(A), and an eraser to be fitted at the end of
the handle (K).
Stowell suggests the handle can be made of
“
wood, hard rubber, ivory, celluloid, or any
other suitable material.
”
Although the patent does not mention a
corkscrew, Stowell
‟
s product does contain a
corkscrew accessed by unthreading a wood plug in the eraser end from the
worm. The corkscrew is used for opening an ink bottle.