Year: 1895

page_text: Date of Application (in the United Kingdom), 4th July, 1895
Complete Specification Left, 31st Mar., 1896-Accepted, 4th Aug., 1896
I, LOUIS FERDINAND DOBLER, of 81 Boulevard Beaumarchais, Paris, in the
Republic of France, Engineer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to new products with surfaces. made adhesive by gutta-
percha, as hereinafter described.
The products are composed of the material or object to be made adhesive-paper,
woven and other fabrics, cardboard, etc.-and a layer of guttapercha on one or
each of its faces. When such adhesive surface is laid on another surface, and
submitted to heat and pressure, a union is effected by the momentary melting of
the guttapercha which, when cool again, strongly and effectually joins the two
surfaces together.
The products thus obtained offer great advantages; the adhesion is effected very
simply and instantaneously and it is extremely clean and perfectly effective; they
can be advantageously employed in book-binding, for the manufacture of card and
mill-board, backing and mounting paper, making paste-board, and more particularly
for mounting photographic prints at any stage of the process, either by using
photographic papers provided with their adhesive layers, or by the use of supports
(card-boards, tissues etc.) provided with adhesive material on one
faces.
or both
Sensitive photographic papers, coated on their posterior side with guttapercha,
may in all respects be used like ordinary unmounted sensitive papers, seeing that
the guttapercha backing has no action whatever on the chemical baths employed
for the various stages, the development, washing, toning, fixing, etc. of the
prints.
When finished and dried the photograph is placed on the backing or support
intended to receive it and by means of heat and pressure is caused to adhere firmly
thereto.
These products preserve their adhesive properties for indefinite periods, even
under the influence of high temperature, and may therefore be used at any period
after their manufacture, however prolonged.
Dated this 4th day of July 1805
BOULT & WADE,
Agents for the Applicant.

page_text: Improvements in or relating to Adhesive Fabrics or Materials.
I, LOUIS FERDINAND DOBLER, of 81 Boulevard Beaumarchais, Paris, in the
Republic of France, 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:-
This invention relates to new products with surfaces made adhesive by gutta-
percha, as hereinafter described.
The products are composed of the material or object to be made adhesive-paper,
woven and other fabrics, cardboard, etc.,—and a layer of gutta-percha on one or
each of its faces.
The gutta percha may be applied to the material or object to be made adhesive,
in any convenient manner for example if the material be a sheet of paper or fabric
this may be prepared by laying on it a thin sheet or film of gutta percha and passing
these two superposed sheets between heated rollers.
When the surface thus covered with gutta percha is laid on another surface, and
submitted to heat and pressure, a union is effected by the momentary melting of
the gutta percha, which when cool again, strongly and effectually joins the two
surfaces together.
The products thus obtained offer great advantages; the adhesion is effected very
simply and instantaneously, and it is extremely clean and perfectly effective; they
can be advantageously employed in book-binding, the manufacture of card and
mill-board, backing and mounting paper, making paste-board and more particularly
for mounting photographic and other prints as well as photographs either by using
photographic papers provided with their adhesive layers, or by the use of supports
(cardboards, tissues, etc.) provided with adhesive material on one or both faces.
Sensitized photographic papers, coated on their posterior side with gutta-percha,
may in all respects be used like ordinary sensitized papers, seeing that the gutta-
percha backing has no action whatever on the chemical baths employed for the
various stages, the development, washing, toning, fixing, etc., of the prints.
When finished and dried the photograph is placed on the backing or support
intended to receive it and by means of heat and pressure is caused to adbere firmly
thereto.
These products preserve for indefinite periods their adhesive properties under the
influence of high temperature, and may therefore be used at any period after their
manufacture, however prolonged.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is;
The new products with gutta-percha adhesive surfaces such as papers tissues
cardboards and others and more particularly photographic sensitized papers,
photographs and prints of all sorts provided on one or both surfaces with a thin
coating of gutta-percha enabling them to adhere to another surface or surfaces by
the application of heat accompanied or followed by pressure.
Dated this 31st day of March 1896.
BOULT & WADE,
Agents for the Applicant.