A New or Improved Portable Copying Apparatus.
Year: 1888

page_text: Date of Application, 22nd Dec., 1888
Specification Accepted, 5th Feb.. 1889
COMPLETE SPECIFICATION.
A New or Improved Portable Copying Apparatus.
We, EDWARD PAYNE of 17 Fenchurch Street in the City of London Engineer
and ELI LEMON SHELDON of 95 Gresham Street in the City of London Merchant 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 the present invention is to provide a compact and portable apparatus
for the purpose of press copying letters or other documents.
For this purpose a
hollow core of volute section is made with a longitudinal slit within which is held
the back edge of a flexible copying book and the ends of the core are provided with
bandles or knobs by which the core can be turned. The letter or other matter to
be copied is inserted under one of the sheets previously moistened and the whole
copying book is then wound round the core and held firmly in the one hand while
the other hand is applied to turn the core so as to wind the book more closely around
the core there is thus brought to bear such pressure on the sheets that a copy is
produced as in a copying press.
Fig. 1 of the accompanying drawing represents an elevation of the core
with the copying book removed and Fig. 2 a perspective shewing the core with the
copying book in position ready for insertion of a letter or other documents to be
copied.
Figs. 3 and 4 are sections of the core shewing two ways of holding the copying
book, Fig. 4 shewing it partly wound round the core.
The
Cis the hollow core which may be about to 2 inches in diameter provided with
two handles B B¹ the one B a fixture on the core and the other B' removeable.
core C is preferably made of volute section as shewn the drop from the outer edge c²
to the inner edge c being about the thickness of the copying book, so that in winding
on the book there is no protuberance where the second convolution overlies the first,
and consequently the pressure throughout the sheets is more uniform.
The copying
book A consists of a number of leaves of copying paper bound with smooth flexible
material such as American leather cloth D the whole being of a width somewhat less

page_text: than the length of the core between the handles. The back of this book is thickened
out by insertion of an inner core d as shewn in Fig. 3, in which case the book is
introduced by removing the handle B' and sliding the book with its thickened back
inside along the slit presented between the edges c¹² of the core. Or the back of the
book may be so formed that after it has been inserted through or along the slit a rod k
attached to the handle B¹ can be passed through the book thus holding it firmly in
position. In some cases I make the core solid and fasten the back of the book on it
in front of the step of the volute as shewn in Fig. 5.
In operating with this apparatus the copying sheets being suitably moistened the
documents to be copied are placed between some of the sheets and the book is then
rolled snoothly round the core; being grasped firmly by the one hand, the handle B
is then turned in the direction of the arrow so as to wind the book more and more
tightly around the core thereby giving to. the whole such pressure that copying is
effected.
Having now particularly described and ascertained the nature, of this inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
1. A portable copying apparatus.consisting of a core and a flexible copying book
held by and wound around the core substantially as herein described.
2. For use in apparatus such as is referred to in the preceding claim, a flexible
copying book consisting of a number of sheets of copying paper with a flexible cover
and a back suited for its retention in or on the core, substantially as described.
Dated this 22nd day of December 1888.
ABEL & IMRAY,
Agents for the Applicants.