Improvements relating to the Renovation of Steel Pens and to Apparatus therefor.
Year: 1887

page_text: Date of Application, 28th June, 1887
Complete Left, 10th Mar., 1888
Complete Accepted, 13th Apr., 1888
Improvements relating to the Renovation of Steel Pens and to
Apparatus therefor.
I, LUDWIG MAGNUS HANS MARIUS DAHMS of Kopenhagen N., in the Kingdom of
Denmark, Gentleman, do hereby declare the nature of this invention to be as
follows:-
:-
My invention relates to the redressing of steel pens; and to apparatus therefor.
To redress worn out steel pens it is necessary to sharpen their points which are
corroded by the ink and deformed by writing especially when the latter has taken
place on rough and hard materials in order that they shall regain their original
smoothness and their original shape.
One
The apparatus constructed according to my invention consists of two pieces, one of
which has an angle shaped cross section while the other has a U-shaped one.
side of each piece has a projection to carry a pin, by which the two pieces are hinged
together and around which they can rotate. The inner faces of both the L-shaped
and the U-shaped pieces are roughened or sometimes provided with file cuts. Near
one end of the U-shaped piece and between its two parallel sides are attached the
ends of two flat springs, the latter pressing from inside with their free ends against
the two parallel sides of the U-shaped piece provided with file cuts or otherwise
roughened surfaces.
If the pens are not worn very much so that their points require but little sharpening
it will suffice to let the points slide but a few times on the inner edge of the angle
shaped piece, pressing it at the same time against the file-cuts. As much of the
corroded material is thereby taken off from the point of the pen as is necessary to
make the pen fit to be used again.

page_text: If, however, the point of a pen is nearly used up and possibly twisted also, the
U-shaped piece of the instrument has to be applied in the following manner. The old
pen is passed several times between one side of the U-shaped arm of the instrument
and the corresponding spring, then it is passed between the other side and the other
spring.
The pen is now turned upside down and the operation repeated. All the time the
point of the pen should touch the inner corner of the U-shaped piece.
By the action of the springs the points of the pen will be straightened if they are
twisted.
301
'
T
1007
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: become perfectly clean and free from corroded material, thus re-dressing the pen for
further use.
The bent points will be straightened by the pressure of the springs c,
and the original shape and smoothness restored.
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
In an instrument for re-dressing worn-out steel pens, the combination of an angle-
shaped piece a, the inner faces of which are slightly roughened, with the U-shaped
piece b, the inner face of which is also roughened, and the springs c, substantially as
described.