Improvements in the Manufacture of "Cards" for use in Looms for Weaving.
Year: 1891

page_text: Date of Application, 21st Nov., 1891
Complete Specification Left, 20th Aug., 1892-Accepted, 24th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of "Cards" for use in Looms for
Weaving.
A communication by MARIE ANGE CYRILLE LOUIS COTTIN and ETIENNE
JOSEPH ANTOINE MARIE BERNE, of 31, Rue de l'Hotel de Ville, Lyons, in
the Republic of France, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool, and 6, Bank Street,
Manchester, both in the County of Lancaster and 323, High Holborn in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this
invention to be as follows:-
Hitherto, the mechanism in general use in weaving looms worked by the
displacement of a perforated sheet of paper, or of cards, also perforated, connected
one to the other by a fastening.
The use, under such conditions, of this sheet of paper or of these cards possesses
considerable drawbacks.
In fact, under the influence of variations either in the temperature or in the
hygrometric condition of the room in which they are placed, such sheets or cards
expand or shrink; and, consequently, as the perforations do not correspond exactly
to the openings of the needle plate, holes and faults in the woven fabric are
constantly produced.
In order to obviate these drawbacks, it was necessary either to place the patterns
close to a boiler in order to dry them, or else to heat the workshop during the
night, so that there might be a constant temperature.
Further, if an original pattern had been perforated in a workshop in which the
hygrometric condition was not the same as that of the one where the pattern was
intended to be used, it was often necessary to re-perforate it (the pattern) so as to
be serviceable under the fresh conditions.
Again, these perforated papers were constantly liable to be torn.
The inventors, being struck with these numerous drawbacks, have had the idea
of substituting, for these perforated sheets of paper, or of cardboard (if desired),
sheets of celluloid, a substance which is absolutely insensible both to the variations
of temperature, and to the hygrometric variations, and infinitely more resistant
than paper or cardboard.
The main drawbacks above named are thus avoided; further, after a certain
time, a considerable saving will be realised, seeing that this substance can be used
over again, and thus it is easy to re-make it afresh into thin sheets, or plates, which
only require re-perforating to allow of new patterns being obtained for which they
can be used, whilst the papers and cardboards at present in use, when worn out, are
valueless or nearly so.
Such are the principal advantages resulting from the use of this substance,
namely, sheets of perforated celluloid, in place of the paper and cards used at
present.
Of course the thickness of these sheets may vary according to the machines on
which they are to be used; they may be employed either in the form of an endless
band, or in the form of separate plates connected in the same way as the cards at
present in use.
SN 1001

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of
Weaving.
66 Cards" for use in Looms for
A communication by MARIE ANGE CYRILLE LOUIS COTTIN and ETIENNE
JOSEPH ANTOINE MARIE BERNE, of 31, Rue de l'Hotel de Ville, Lyons, in
the Republic of France, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E. of the Agency for
Foreign Patent Solicitors 6 Lord Street, Liverpool, and 6 Bank Street,
Manchester, both in the County of Lancaster and 323 High Holborn, in the
County of Middlesex, Civil Engineer, 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 :-
Hitherto the mechanism in general use in weaving looms worked by the
displacement of a perforated sheet of paper, or of cards, also perforated, connected
one to the other by a fastening.
The use, under such conditions, of this sheet of paper or of these cards possesses
considerable drawbacks.
In fact, under the influence of variations, either in the temperature, or in the
hygrometric condition of the room in which they are placed, such sheets or cards
expand or shrink; and, consequently as the perforations do not correspond exactly
to the openings of the needle plate, holes and faults in the woven fabric are
constantly produced.
In order to obviate these drawbacks, it was necessary either to place the patterns
close to a boiler in order to dry them, or else to heat the workshop during the night
so that a constant temperature might be maintained.
Further, if an original pattern had been perforated in a workshop in which the
hygrometric condition was not the same as that of the one where the pattern was
intended to be used, it was often necessary to re-perforate it (the pattern) so as to
be serviceable under the fresh conditions.
Again, these perforated papers were constantly liable to be torn.
The communicators, being struck with these numerous drawbacks, have had the
idea of substituting, for these perforated sheets of paper, or of cardboard (if
desired), sheets of celluloid, a substance which is absolutely not sensitive to either
the variations of temperature, and to the hygrometric variations, and infinitely more
resistant than paper or card-board.
The main drawbacks above named are thus avoided; further, after a certain
time, a considerable saving will be realised, seeing that this substance can be used
over again, and thus it is easy to remake it afresh into thin sheets, or plates, which
only require re-perforating to allow of new patterns being obtained for which they
can be used, whilst the papers and cardboards at present in use, when worn out, are
valueless or nearly so.
Such are the principal advantages resulting from the use of this substance,
namely, sheets of perforated celluloid in place of the paper and cards used at
present.
Of course the thickness of these sheets may vary according to the machines on
which they are to be used; they may be employed either in the form of an endless
band, or in the form of separate plates connected in the same way as the cards at
present in use.
It will be understood that, without departing from the principle of the invention,
the celluloid substance may vary somewhat in composition according as it is
desired to render it uninflammable, more or less translucent, or more or less
flexible.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondents, I declare that what I claim is :-
The improvements in the manufacture of "cards" for use in looms for weaving,
consisting in the novel application for the manufacture of such cards or patterns of
celluloid as hereinbefore described.
Dated this 10th day of August 1800
WM. P. THOMPSON & Co.,
Agents for the Applicant.