Excerpt from The Boy Mechanic, Book 2, 1915.
Making a Knife and Easy Opener
large blade of my knife being so hard to open placed me in constant
risk of breaking my thumbnail. To overcome this difficulty,
I ground a notch in the handle as shown in the sketch. After
smoothing it up with a round file and fine sandpaper, I had
just as good a job as if the knife had been made that way, and
it is very easy to open it, as it can be done with the thumb
and forefinger. Anyone can improve his knife in this way, but
be careful not to cut the notch back of the point of the small
—Contributed by C. M. Mahood, Warren, Pa.
Editor's Note: This is a reprint of an article published
in 1915. It describes what was recommended in accordance with
the knowledge and practices of the day. While reading it, please
consider this fact.