Improvements in Linotypes, and Means of Fixing them in Formes.
Year: 1893

page_text: Date of Application, 13th Apr., 1893
Complete Specification Left, 12th Jan., 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Linotypes, and Means of Fixing them in Formes.
I, GEORGES ALBERT DUBEUX, of No. 13, Torriano Avenue, N.W. in the
County of London, Gentleman, do hereby declare the nature of this invention to
be as follows:-
:-
The straight lines of type formed by linotype processes and machines cannot
themselves be fixed effectually on printing cylinders, and consequently it is
necessary to take a mould from the linotype forme to bend this mould and to cast
thereon a forme suitably curved. My invention relates to such a construction of
linotype and means of fixing them in formes, as to avoid the expense, labour and
loss of time involved in the moulding and stereotyping necessary for fixing them
on printing cylinders.
For this purpose, when the linotypes are to be fixed parallel to the axis of the
cylinder, I cast either the linotypes themselves or the leads employed to separate
the lines of them in the forme, with a lateral taper suited to the dimension of the
cylinder so that they fit on the surface of the cylinder like the voussoirs of an
arch. When the linotypes are to be fixed in planes perpendicular to the axis of
the cylinder, I cast them with curvature suited to that of the cylinder. For
casting the linotypes in this form the matrices used are arranged with taper internal
pieces between them so that when clamped together, their faces arrange themselves
in the curve desired. For fixing the linotypes and leads, whether they are
I form in the base a dovetail
arranged parallel or perpendicular to the axis.
notch or several of these uniform in position and width in each linotype and lead
so that when all the linotypes and leads are arranged side by side, these notches
form a continuous dovetail groove extending along the whole length of the forme.
I provide on the cylinder pairs of dovetail dogs which project into the groove and
which by means of screws are spread apart so as to take firm hold in the dovetail
notches. Obviously this mode of fixing linotypes and leads is applicable for flat
as well as for curved formes, and to blocks for designs or engravings as well as to
linotypes.
1
A11002
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Linotypes, and Means of Fixing them in Formes.
I, GEORGES ALBERT DUBEUX of No. 13, Torriano Avenue, N.W., in the
County of London, Gentleman, 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:-
Linotypes, as is well known, are made by arranging side by side a number of
matrices in a row and casting on them metal which forms a line of united types
ready to be made up into formes for printing. When the forme is to be fixed on the
surface of a cylinder, a cast is taken from the flat forme made up of linotypes, this
cast is bent to the proper concave curvature and a curved stereotype is produced
from it, adapted to be fixed upon the printing cylinder.

page_text: .
My invention relates to the construction and fixing of linotypes themselves for
cylinder formes in such a manner as to avoid the expense, labour and loss of time
involved in the moulding, bending and stereotyping operations above mentioned,
as I shall describe referring to the accompanying drawings.
Figure 1 is a part plan and Figure 2 a part transverse section of a printing 5
cylinder having on it linotypes transverse to the axis.
The other Figures 3 to 8 inclusive shew to an enlarged scale the form of the
linotypes and the means of fixing them.
Figure 3 is a sectional plan of the parts under one of the rows. Figure 4 is a
section on the line X X and Figure 5 a section on Y Y of Figure 3.
Figure 6 is an end view of one of the rows.
Figure 7 is a side view of one of the linotypes.
Figures 3, 4 and 5 shew a modified arrangement for fixing the linotypes.
Figure 8 shews a number of them side by side on the cylindrical surface.
Figure 9 is a part plan and Figure 10 is a transverse section having on it
linotypes parallel to the axis. Figure 11 is a transverse section shewing to an
enlarged scale several of the linotypes side by side on the cylindrical surface.
Figure 12 is the side view of one of the linotypes.
When
The linotypes A shewn in Figures 1 to 8 inclusive are curved by being cast on
matrices arranged side by side to the proper curvature, for which purpose these
matrices are made somewhat wedge shaped, or, if they have their sides parallel as
usual, they can be set to the curvature before casting a linotype on them by
introducing thin wedges between the edges farthest from the characters.
there are numerous spaces, their matrices, if made wedge shaped will serve also
to give the line curvature. Each linotype is made with a dovetail notch in its
under side and into these notches are introduced two dovetail pieces B which lie
in a recess of the cylinder and are urged towards each other by springs C also
lodged in the recess. Each of the pieces B has two dovetail side wings D
projecting from it, each between. dovetail guides E E, which are fixed in the
recess. There is also formed on the inner side of each piece B near each end
an inclined face F to receive wedge shaped parts of double V section of a bar G
which lies between the two pieces B and has a screw threaded end fitted with a
nut H. This nut can turn in a flange L and is prevented from being drawn out
by a pin engaged in a groove turned in the nut. By turning the nut so as to
draw the bar G towards the right, the wedge parts of the bar acting on the
inclines F force the pieces B apart so that their dovetail sides engaged in the
dovetail notches of the linotypes A, and also setting screws K, hold the linotypes
firmly in position. The wedge bars G may be duplicated as indicated in Figure 1,
the one bar being drawn to the right and the other to the left. In order to
avoid the recessing of the cylinder to receive the bases of the dovetail pieces B,
I modify the means of fixing the linotypes as shewn in plan Figure 34, in
transverse section Figure 4 on X X of Figure 34 and longitudinal section Figure 5.
In this construction the dovetail pieces B' B' are held on the surface of the
cylinder by screws D' passing through slotted holes. In recesses formed in the
underside of each of the pieces B¹ are screwed or rivetted pieces F¹ in which are
formed sloping notches corresponding in slope with the sloping sides of the
pieces B¹ B¹. A wedge bar Gi is held down to the cylinder by screws g passing
through slotted holes in the thicker parts of the bar, but is free to slide
longitudinally. It has in its lower side sloping wings & which fit into the sloping
notches of the pieces F¹. When the bar G is drawn to the right by a nut applied
to its end (as described with reference to the bar G in Figures 3 and 6) its sloping
sides acting on the slopes of the dovetail pieces B¹ wedge these pieces apart so
as to secure the linotypes A to the cylinder. When it is desired to remove the
linotypes the bar G₁ is pushed back to the left; and its wings & acting in the
notches of the pieces F as external wedges draw the dovetail pieces B₁ inwards
releasing the linotypes A.
In Fig. 1 only part of each forme is shewn as being made, up of linotypes A

page_text: the other parts S may be stereo or other plates, which may be held in the same
way as the linotypes; or the whole forme may be made up of linotypes held as
above described.
When the linotypes A are parallel to the axis of the cylinder as shewn
in Figs. 9 and 10, they are made wedge shaped and straight on the face as shewn
in Figs. 11 and 12 and the wedge bars G, instead of being straight, are curved as
shewn in Fig. 10.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :--
1. In combination with a number of linotypes made of shape adapted to a
cylinder forme and having dovetail notches on their under sides, a pair of pieces
having dovetail outer sides with guided wings, and having inclines on their inner
faces, and a wedge bar with nut arranged to force them apart, substantially as
described.
2. The modified arrangement for fixing a number of linotypes such as are
above referred to, substantially as described with reference to Figs. 34, 44 and 5ª.
Dated this 12th day of January 1894.
ABEL & IMRAY,
Agents for the Applicant