An Improved Device for Cutting, Erasing, and other purposes.
Year: 1892

page_text: Date of Application, 14th Dec., 1892
Complete Specification Left, 4th Sept., 1893-Accepted, 7th Oct., 1893
PROVISIONAL SPECIFICATION.
An Improved Device for Cutting, Erasing, and other purposes.
I, ERNST JOSEPH KÖSTER, of Harkorten in the Kingdom of Prussia,
Germany, Gentleman, do hereby declare the nature of this invention to be as
follows:-
On writing tables and drawing-boards knives for sharpening lead pencils, files
for producing a fine point on the pencils, and knives for scraping or scratching
out are very useful accessories. To avoid the confusion arising when so many
different instruments are lying about, I according to my invention unite them in a
practicable and simple manner into a single tool that comprises an office file, a
knife, and two scraping or scratching-out blades, which latter may also be used for
cutting paper. The combined tool is enclosed in a protective casing so that it may
conveniently be carried in the pocket.
In the accompanying illustrative drawings,
Fig. 1 is a side view; and
Fig. 2 a front view, of a tool constructed according to this invention.
Fig. 3 shows the tool enclosed in its protective casing.
The handle a of the tool is formed with a cylindrical part 6 of smaller diameter,
and in this part the tang of the tool is fixed. The lower end c of the tool is
shaped like a knife and provided with a sharp cutting edge; the part d is formed
as a file; and the upper part gis pointed and made with two curved knife-edges in
such a manner as to be suitable both for scraping or scratching out and for cutting
paper, especially on drawing boards and blocks. The protective casing is simply
passed over the part of the handle a as shown.
The casing may however be arranged to screw on the handle a or to be attached
thereto by screws in any suitable manner. The shape of the file may also be
varied; for example in place of the flat file as shown at d a file may be used
having a triangular section.
Dated this 14th day of December 1892.
COMPLETE SPECIFICATION.
An Improved Device for Cutting, Erasing, and other purposes.
I, ERNST JOSEPH KÖSTER, of Harkorten in the Kingdom of Prussia,
Germany, Gentleman, 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 :-
On writing tables and drawing-boards knives for sharpening lead pencils, files
for producing fine points thereof, and knives or erasers for scraping or scratching
out are very useful accessories, but the presence of so many different instruments is
apt to cause confusion, which it the object of my invention to obviate. To this
end I combine in one single tool an office file, a knife, and two erasing or scratching-
out blades, which latter may also be used for cutting paper. The combined tool
is enclosed in a protective casing so that it may conveniently be carried in the
pocket.
Referring to the drawings filed with my Provisional Specification.

page_text: Fig. 3 shows the tool enclosed in its protective casing.
a is the handle; it is formed with a cylindrical part of smaller diameter, in
which part the tang of the tool is fixed. The lower part c of the tool is shaped
like a knife and provided with a sharp cutting edge; the part d is formed as a
file; and the upper part e is pointed and made with two knife-edges (preferably
curved as shewn) suitable both for scraping or scratching out and for cutting
paper, especially on drawing boards and blocks.
The protective casing is simply passed over the part of the handle a as
shewn, but may if desired be arranged to screw on the handle a or to be attached
thereto by screws in any suitable manner. The shape of the file may also be
varied; for example in place of the flat file as shown at da file may be used
having a triangular section. In some cases the cylindrical portion 6 may be
omitted the tang being then inserted into the handle a.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. A device for cutting, crasing and other purposes comprising a part (c)
adapted to serve as a knife, a part (d) formed as a file, and a part (e) formed with
knife edges and adapted to serve for erasing and cutting purposes substantially as
described.
2. The improved device for cutting erasing and other purposes shewn in and
described with reference to the annexed drawings, whether provided with a
protective casing for not.
Dated this 4th day of Santamban 100
E. J. KÖSTER,
By L. W., per F. B.