Improvements in Borderings for Placards and similar Sheets.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Improvements in Borderings for Placards and similar Sheets.
A communication from ANTON REICHE, of Grenzstrasse, Dresden-Plauen, in the
Empire of Germany, Tin-ware Manufacturer and Ironmonger.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I. Mech. E. and Chartered Patent Agent, 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 object of this invention is a bordering made of sheet metal for framing
placards and the like to keep them smoothly stretched.
For this purpose a strip of metal is bent in such a manner that it shows a plain
and a curved or equivalent surface the latter giving the strip great power of
resistance against bending or breaking. The edge of the curved or bent surface
is turned inwards.
In manufacturing such borderings Vor U-shaped strips are employed one leg
of which remains straight the other being bent, so that it shows a semi-circular
or equivalent cross section, the result being that the straight leg projects beyond
the bent one.
The fastening of the bordering can be effected in two ways. In one instance the
edge of the placard is slipped between both legs of the bordering and both the
straight leg and the paper are punched by means of suitable punching tongs;
the holes must be punched as near as possible behind the bent edge of the curved
leg, so that the paper is kept on the elevations resulting from the punching of the
sheet metal and preventing the placard from slipping out of the bordering.
The holes are covered by the curved or bent leg of the bordering so that the
method of fastening cannot be seen from the front of the placard.
In the second way the edge of the placard is folded down and the bordering is
slipped over the paper from the side, so that the bent edge of the curved leg
places itself in the fold of the paper. The paper being stout in most cases
possesses sufficient resistance to carry the light bordering so that no special fastening
will be necessary.
The new device has the advantage that if the borderings are made sufficiently
strong no special apparatus for fastening them on the placards is required. The
ready bent borderings can be applied to the placards by anybody without any
difficulty.
The drawings illustrate various applications of the invention some with curves
and some with angles upon the bent leg. These drawings explain themselves and
do not require detailed description.
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,-
A bordering for placards and the like one leg of which forms a plain surface
and the other one is bent so as to have a semi-circular or other shaped cross-section
for increasing the rigidity the edge of the latter leg being bent in keeps the
placard within the bordering the edge of which either is punched together with
the plain leg or is folded down upon it substantially as described and illustrated in
the accompanying drawings.
Dated this 20th day of January 1893.
W. P. THOMPSON & BOULT,
Agents for the Applicant.