Improvements in and relating to Nail-files for Toilet Use.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Nail-files for Toilet Use.
I, ISABEL CASSIDY, a married woman, and citizen of the United States of
America, residing at No 20, East Seventeenth Street, in the City, County, and
State of New York, one of the United States of America, Merchant, 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 :-
This invention relates to certain new and useful improvements in nail-files for
toilet use, its especial object being to provide a nail-file which shall incorporate in
a single tool, a file having both a concave and a convex file surface; the tip of
the file being formed of bone, ivory or other like material, the use of which will not
be liable to result in injury either to the nails or to the finger tips.
The use of sharp pointed tools of iron, steel, or other hard metal in the treatment
of finger nails has been found to be objectionable, in that such use has frequently
resulted in injury, and sometimes to the serious poisoning of the finger tips from
It has also been found that in a tool
rust accumulating upon the point of the tool.
of this character, both a concave and a convex surface is essential.
The invention is clearly illustrated in the accompanying drawings, which, with
the letters of reference marked thereon, form a part of this Specification, and in
which drawings-
Figure 1 is a perspective view of a nail-file embodying my improvements;
Figure 2 is a similar view, in which the point of the tool is shown as detached,
but in its relative position.
Referring to the drawings by letter, A, designates the file, which is pro-
vided with a suitable handle, B, of any size, shape or material adapted to the
purpose.
The blade, C, of the file is formed upon the arc of a circle, and is provided upon
its outer or convex face with a file surface, a, and upon its concave face with a
similar file surface, b.
At its free end the file blade is cut off at right angles to the length of the blade,
and the end is provided with a screw-threaded extension, E, adapted to engage the
screw-threaded opening, F, formed in the base of the tip or point, G, which tip is
made of either bone, ivory, or other material the use of which would not be likely
to injure either the nails or the finger tips operated upon.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
As an improved article of manufacture, the herein described nail-file, consisting
of the metallic blade, A, and integral handle, B, said blade being curved and having
its faces and convex and concave edges formed with file surfaces, and the end
formed centrally with projecting screw-threaded extension, E, and a tapered ivory
tip, G, having screw-threaded opening, F, to receive said extension said tip
completing the contour of the edges and faces of the blade, substantially as shown
and described.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.