Improvements in Means for Copying Manuscripts.
Year: 1897

page_text: Improvements in Means for Copying Manuscripts.
I, JOHN HENRY FARRANT, of Number 10, Portland Street, in the County of the
City of Exeter, Carpenter, do hereby declare the nature of this invention
to be as follows:-
The object of this invention is to produce an improved means of duplicating
manuscripts.
It consists of a sheet of paper, canvas or other flexible substance covered on
both sides with a thin layer of gelatine duplicating substance which may be
prepared as in the ordinary gelatine copying pad.
Improvements in Means.for Copying Manuscripts.
I, JOHN HENRY FARRANT, of No. 10, Portland Street, in the County of the
City of Exeter, Carpenter, 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 consists of a sheet of paper, canvas, or other flexable substance
covered on one or both sides with a thin layer of duplicating substance which is
prepared as herinafter described.
The duplicating substance which I employ is preferably prepared in the follow-
ing manner and it preferably consists of the following ingredients:—White
gelatine 2 parts, water 4 parts, glycerine 4 parts, and gum dextrine 1 part. These
ingredients being thoroughly incorporated together over a slow heat.
When the copying substance is prepared I take a piece of paper, canvas or other
preferred flexible material and pass the same through the copying composition
while the latter is in a liquid state and this operation results in coating the
surface of the paper or other flexible material with a thin coating of the copying
substance.
The matter to be copied is written on a piece of writing paper (preferably
glazed,) by means of an ordinary pen and analine ink. The duplicating sheet
as herinbefore described is then secured to a flat surface block or table and
slightly wetted or damped, with a sponge or in any desired manner, after which
the sheet with the written matter thereon is placed face downward on the said
DQ77

page_text: duplicating or copying sheet and allowed to remain for about two minutes care
being taken to remove all folds by passing the hand or a roller over the back
thereof. The sheet with the written matter thereon is then removed from the
copying sheet and as many copies as desired may be made by placing sheets of
writing paper one by one on the copying sheet as before described, each successive
sheet being carefully smoothed and pressed on the copying sheet by means of the
hand or a roller. As many copies as desired may thus be made by my improved
flexible copier and the said copier may be folded or rolled and carried in a
compact form and may be used whenever desired. It will be apparant that the
copying sheet need be covered only on one side but I prefer to cover both sides
thereof with the copying substance as herein described.
.
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. The herein described means for copying manuscripts which consists of a
sheet of paper, canvas, or other flexible material the surface of which is covered
with a coating of copying composition substantially as described.
2. A sheet of paper, canvas, or other material for use in copying manuscripts,
the said sheet of material being provided with a coat of copying composition.
3. A sheet of paper, canvas or other flexible material for use in duplicating
manuscripts, the said sheet of paper, canvas, or other flexable material being
provided with a coating of copying composition consisting of gelatine, water,
glycerine and gum dextrine substantially as described.
Dated this Eighth day of July 1898.