Year: 1887

page_text: Date of Application, 16th Aug., 1887
Specification Accepted, 15th June, 1888
A communication from GEORGE O. EATON, of Gardiner, in the County of Park, in
the Territory of Montana, United States of America.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E. do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement :-
The invention relates particularly to the nail blade commonly employed in pocket
knives, which ordinarily consists in a main flat portion which has a file surface; and
a flat, pointed, nail cleaning terminal portion, which has a knife edge and which
upon both back and edge is convex from end to end.
It has been found in numerous instances that the width of this terminal nail cleaning
portion is greater than the space between the surface of the finger and the inner
surface or under portion of the nail and that when in removing accumulations of
foreign substances the point of the blade has been introduced into the innermost
extremity of this space, the nail has been lifted and torn away from the flesh, the
apparently trivial laceration frequently producing irritation which it is difficult to
allay and which has sometimes been so serious as for a considerable period of time to
produce entire disability of the member.
With a view to avoidance of results of this character this invention consists in
providing in the terminal or knife portion of the nail cleaning blade a curved recess
or concavity which has the effect without materially diminishing the strength of the
part, of adapting the width of the blade to the space which when in operation it is
required to occupy.
In the drawings
Fig. 1 is a side elevation of a pocket knife which is provided with this improved
oil hlada

page_text: Fig. 2 is a side elevation showing the terminal or knife portion of the nail blade as
of a slightly modified form.
Fig. 3 is a side view showing the relation of the improved nail cleaner to the finger
when applied thereto.
Fig. 4 represents in side elevation a manicure file provided with the improved nail
cleaner.
Fig. 5 represents in side elevation a further modification of the terminal or knife
portion of the nail blade.
In figures 1, 2, 3, and 4 A is the handle and A¹ the nail blade; b being the body
or file surfaced portion of such blade, c the nail cleaner or knife portion and d the
recess or concavity within which the rounded extremity of the finger is received.
As seen in figure 2 that portion of the back of the blade which is beyond the
concavity d has a straight outline e. This form of the terminal point of the blade
may in some cases be adopted...
In figure the recess or concavity is angular; instead of being of a curved form.
This form of recess may perhaps be produced at less cost than the curved form and in
some instances its adoption may be desirable.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner the
same is to be performed I declare that what I claim is :-
The combination with the handle A of the nail blade A¹ having body or file
portion band the knife portion c which in the back thereof is provided with the recess
or concavity d to accomodate the finger, as and for the purposes specified.
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