Improvements in Combination Copying Books and Presses.
Year: 1886

page_text: Improvements in Combination Copying Books and Presses.
I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Engineer do hereby declare the nature of this invention (a communication from
Edward Louis Fargo of the City,, County, and State of New York, in the United
States of America, Merchant) 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 a copying book which is bound between flexible covers
and is wound around a roller and provided with a rigid outer case into which the
rolled book is inserted during the copying process, the outer cover of the book and
the enclosing case provided with means for holding them relatively fixed each to
the other during the copying process so that by rotating the roller,' within the coils
of the book surrounding it the book is wound very tightly' about the roller, which
then acts as a fixed platten against which the book presses with great force, so as
to secure the desired impression from the letter which is being copied. The
invention will be readily understood by reference to the accompanying drawings of
which,
AC
. I
Fig. 1 is a perspective view of one of the improved books wound up and enclosed
in its packing case.
Fig. 2 is a transverse section of the same...
Fig. 3 is a perspective view of the book partly unwound and thrown open,
The book A is made of the ordinary, thin, tissue paper copying leaves, is usually
about a quarter of an inch in thickness, and is bound between two thin, flexible
covers A¹ A2, so as to make the book easily flexible in order that it may be easily and
tightly wound around the roller B. There are oil boards, or water proof papers a¹ a²
bound into the book between the copying leaves A and the enclosing covers A' A²,
for the purpose of keeping the moisture required in the copying leaves from
penetrating into the cover.
→
The roller B on which the book is wound up is rebated or slotted at b so as
to readily receive and securely hold in place the back edge of the book, which
is placed in said rebate or groove and securely fixed to the roller by gluing, or
[Dmine 71

page_text: nailing, or by both. Outside of the book, and tightly impinging against it, is
fastened a curved, tapering piece 61, which is also fastened to the body of the
roller B, so as to hold the book between it and the body of the roller B in a fixed
position approximately tangential to the first side of the roller against which the
book is wound. The piece b¹ is made removable from the main part of the roller B,
so that the book A may by the said removable piece be attached to the roller B, as
described.
The whole contour of the roller B-b¹ is made somewhat in the form of a helix,
the outer projection of the curve of which terminates abruptly at the outer,
accurate edge of the binding piece b¹, which overlaps the innermost point 62 on the
face of the roller, by a distance just equal to the thickness of the book, so that as the
book is wrapped around the roller in successive coils, one upon the other, the roller
always forms a firm abutment or solid core within the coils of the book and thereby
acts as a solid platten for holding firmly against every part of the book during the
copying process.
"At the outer end of the roller or platten B, it is provided with a handle or
knob B¹, for rotating it, and rendering it easily manipulated. At the inner face
of this handle is formed a cone shaped locking hub B, by means of which after
the book shall have been tightly wound up on the roller B it is locked in the
surrounding case or tube C, by simply pushing this sloping sided, or truncated
cone into the end of said tube, frictional contact between the parts C and B³,
thereafter serving to hold the roller and its book from rotating, or unwinding
within the tube C.
Along one side of the tube or case C, and for nearly or quite its entire length, is
formed a groove C¹, opening inwardly to the inside of the tube. This groove is
preferably made in dovetailed form, as is shown in Fig. 2, with its smaller, or
locking side next the book in the tube.
A small, stiff, rib piece D, usually of wood, is made of a similar shape to the
groove C¹, only slightly smaller than the groove, so as to allow it to slide easily
longitudinally therein. The smaller side of this rib piece is securely fastened to the
extreme outer edge of the outer cover of the book, (this cover should be made
somewhat longer than the other cover for this purpose), and then when the book is
inserted into the tube with this locking piece D in its locking groove C¹, the said
outer cover is firmly held against rotation around the roller B, and by turning the
handle B', the book is then wound tightly up between the said outer cover and the
inner firm platten B, and a perfect copy of a letter placed within the book in
the usual manner of copying, is readily and perfectly produced.
I usually use with this form of copying book perpetually moistened sheets of
copying paper, prepared by a peculiar process of my own, but this is not essential,
as the sheets may be moistened with water at the time of copying, in the old and
well known manner.
Having described my invention, I claim,
1st A flexible letter copying book provided with flexible covers and oiled or
water-proofed leaves between the book and each of its covers, in combination with
a roller, into a longitudinal peripheral groove or rebate of which the bound edge of
the book is fixed.
2nd A roller provided with a longitudinal peripheral groove or rebate adapted
to receive and hold the bound edge of a copying book, and in combination there-
with a tapering binding piece affixed to the periphery of the roller at the base of
the attached book, as described.
.
3rd A roller adapted to receive a flexible copying book, wound around its
periphery, provided with a tapering hub at the inner face of its outer end or
handle, adapted to fit tightly into the outer end of the enclosing tube so as to lock
or secure the roller against rotation in its enclosing case, by the impingement of
the sloping or conical faced hub against the inner face of the enclosing tube.

page_text: 4th A central roller or platten of a firm material, provided at its outer end with
a conical hub adapted to fit tightly into the enclosing tube; a flexible copying
book wound around the periphery of said roller; a transverse locking bar firmly
secured to the outer edge of the outer cover of the book, and adapted to slide
longitudinally in an interiorly opening locking grooves formed in the surrounding
case, and the rigid enclosing case; combined and arranged substantially as described
and set forth.