Improvements in and relating to Polychrome Printing Machines.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Polychrome Printing Machines.
We, THE SIMULTANEOUS COLOR PRINTING SYNDICATE LIMITED, of, 7, Bleeding
Heart Yard, in the County of London, Printers, and HENRY DE MONTIN, of 57,
Rushton Lodge, Sidney Road, New Southgate, in the County of Middlesex,
Printer, do hereby declare the nature of this invention to be as follows:
This invention relates to polychrome printing machines of the kind described
in the Specifications of former Patents Nos. 13874 of 1887, 9870 of 1894 and 22376
of 1895 and to the preparation of colour blocks for the same where heat is
employed as in the said Specification No. 9870 of 1894 for rendering the block
fluid to give off colour to the printing paper or the like.
In carrying out our invention we provide improved means for rotating the nuts
of the elevating screws (described in Specification No. 13874 of 1887) of the bed
supporting the colour blocks. Such means advantageously consist of a cross
shaft journalled in bearings on the sliding box or coffin carrying the bed and
provided with worms engaging worm wheels. The worm wheels actuate side
shafts through suitable spur gear wheels the said shafts rotating the nuts through
the medium of bevel and spur gear wheels. The above mechanism is actuated
by a ratchet wheel and pawl operated by a lever which comes into contact with
a stop on the frame of the machine during the to-and-fro movement of the box
or coffin as in Specification No. 13874 of 1887 the said wheel pawl and lever being
on the cross shaft.
i
The stop is arranged to be adjustable relatively with the lever so that the
stroke of the latter can be varied according to the thickness of colour to be removed
from the colour block at each printing operation.
We also provide a frame or chase through which the colour block is forced
as required by means of the rising bed, the said frame being adjustable according
to the size of the block instead of being of a fixed or determined size as in
Specification No. 22376 of 1895. The improved frame consists of two cross bars
or angle irons supported upon two longitudinal bars in the box or coffin
of the machine and forming two opposite sides of the frame and having
extending between them two bars each formed in two or more parts over-
lapping so as to be adjustable to form the other two sides of the frame the latter
sides being supported upon the longitudinal bars which are adjustable laterally
in the box or coffin. To enable the several parts to be adjusted and secured in
position, slots or holes in one set of the parts, with studs on the other set of the
parts, engaging therewith, and having winged nuts thereon, may be advantageously
employed.
Instead of the gas heated printing cylinder described in Specification No. 9870

page_text: air.
of 1894 we employ a cylinder adapted to be heated by steam, hot water or hot
For this purpose the cylinder is advantageously provided with longitudinal
heating tubes in proximity to the surface of the cylinder and extending between
chambers at each end of the same. Or a coil of tube or a heating jacket may be
employed the heating medium passing through the cylinder shaft, which is made
hollow, suitable means such as stuffing boxes and glands being employed to make.
tight joints between the ends of the shaft and the pipes conveying the heating
medium.
In the preparation of the colour blocks used in connection with the printing
machine having heated printing cylinders as hereinbefore described, such blocks
are made up of colouring materials in different colours mosaic like in any desired
design, and an impression is taken of the latter in all the colours simultaneously
or by one pull. According to our improvements we prepare an improved medium
for combining with the colouring matters or pigments to be used. This medium
consists of mineral or earth wax, vegetable and animal wax, animal, vegetable
and mineral oils and a small proportion of animal fat. These ingredients having
been melted and well mixed the compound is ready to be mixed with the several
colouring matters previously ground in about equal proportions by weight. The
several colouring matters so made are formed into a mosaic like block according
to the desired design, and after the block has been planed or rendered perfectly
even of surface and of thickness it is ready for use in a printing machine of the
character described where a thin film of the surface of the block is by heat melted
and printed, for instance, on paper, giving clear and good impressions. The
printing can be continued until the block is practically consumed.
Dated this 3rd day of May 1898.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to Polychrome Printing Machines.
We, THE SIMULTANEOUS, COLOR PRINTING SYNDICATE LIMITED, of 7, Bleeding
Heart Yard, in the County of London, Printers, and HENRY DE MONTIN, of 57,
Rushton Lodge, Sidney Road, New Southgate, in the County of Middlesex,
Printer, 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 polychrome printing machines in which the colours
to be used are formed in a solid block and to the preparation of the colour blocks,
where heat is employed for rendering the block fluid to give off colour to the
printing paper or the like.
In the accompanying drawings,
Figure 1 is a sectional plan of a portion of a single cylinder printing machine
having our improvements applied thereto :
Figure 2 is a sectional end elevation; and
Figure 3 a longitudinal section of the said machine.
Figure 4 is a section on the line 4-4 Figure 1 and,
Figures 5 and 6 are views of details.
Figures 4, 5 and 6 are drawn to a larger scale than Figures 1, 2 and 3.
A is the frame of the machine and B is the sliding box or coffin carrying the

page_text: bed C supporting the colour block D, all these parts being of ordinary construc-
tion.
According to the invention we provide improved means for feeding the colour
block after each impression. Such means comprises a cross shaft which is
journalled in bearings a¹, a¹ formed in the sliding box or coffin B, the said
shaft a being provided with worms b, b. c, c are worm wheels with which the
worms engage, the said worm wheels being mounted upon spindles c¹, el carried
by brackets, 2 secured to the sliding box or coffin B; the spindles carry
toothed pinions which engage with toothed wheels mounted upon side shafts c
carrying bevel wheels which gear with bevel wheels c keyed to the nuts 8.
These nuts when rotated, actuate the elevating screws E with which the bed C
d is a ratchet wheel which
of the machine is provided in the usual manner.
is provided upon the cross shaft a, the said ratchet wheel being adapted to be
operated by the pawl e which is pivoted to a lever el loosely mounted upon the
cross-shaft a and the depending arm of which is adapted to be operated by
stop f which is carried in a fixed bracket f' secured to the frame A of the machine.
To enable the stroke of the pawl to be varied according to the desired thickness
of colour to be removed from the colour block at each printing operation, the stop f
is fixed in a slot f2 in the said bracket f¹ so that its position in the said slot can
be suitably adjusted. With this arrangement when the sliding box or coffin B
reciprocates in the usual manner under the printing cylinder F, the lever e¹ by
virtue of its own weight assumes a vertical position and on the return movement
of the sliding box or coffin B, strikes against the fixed stop f so as to turn upon
the cross-shaft a and thereby engage with and rotate the ratchet wheel d and the
said cross-shaft a through a distance which is dependent upon the position to
which the said stop f has been adjusted.
a
We also provide a frame or chase through which the colour block D is forced
as required by means of the rising bed C, the said frame being adjustable according
to the size of the block instead of being of a fixed or determined size. It consists
of two cross bars or angle irons g, g supported upon two longitudinal bars h, h
in the box or coffin B of the machine and forming two opposite sides of the
frame.
These longitudinal bars h, h are provided with dove-tailed grooves h¹, h¹ and
they are secured to the box or coffin B by means of bolts 2 which pass through
the ends of the bars h and the heads of which fit into dove-tailed grooves h³, h³ in
the sides of the box or coffin B. It will be obvious that by sliding the bolts h²
in the dove-tailed grooves h³ the distance between the two longitudinal bars h, h
can be adjusted as desired; h, h are wing nuts by means of which the said bars h, h
are secured in any position to which they may be adjusted. The cross bars or
angle irons g, g are provided with a number of holes g¹, g' by means of which they
can be secured to the longitudinal bars h, h through the medium of bolts g², g² which
pass through the said holes g' and the heads of which fit the dove-tailed grooves h¹
in the said bars h, h being secured in position by wing-nuts g, g. The other
two sides of the frame or chase are formed by two bars i, each of which consists
of two or more overlapping parts as shewn clearly in Figures 4 and 5 the latter
of which figures is an end view of the former. The two ends it, of the bars i, i
are bent at right angles to the main portions thereof and are adapted to be secured
to the upright flanges of the angle-bars g, g by winged studs which pass
through slots (Figure 4) in the ends and holes g, g in the said angle-
bars 9, 9
The over-lapping end of one part of the bars i, i is slotted and is
adapted to be secured to the other over-lapping end by a bolt having a wing-
nut 25. With this arrangement it will be obvious that the sides of the frame or
chase can be adjusted in both directions by unscrewing the various wing-nuts
and studs, sliding the bars to the required position and then again tightening
the wing nuts and studs. Furthermore by the employment of a chase through
which the colour block is forced prior to each impression, we ensure the proper

page_text: registering for the final printing and prevent the edges of the block breaking
away.
Instead of a gas heated printing cylinder we employ a cylinder adapted to be
heated by steam, hot water or hot air. For this purpose the cylinder F is provided
with a heating jacket j the heating medium passing through the cylinder shaft j¹,
which is made hollow, tight joints are made between the ends of the shaft and
the pipes conveying the heating medium by suitable means such as the stuffing
box and gland shewn in Figure 6. Instead of the heating jacket we may
provide the cylinder with longitudinal heating tubes arranged in proximity
to the surface of the cylinder and extending between chambers at each end thereof,
or a coiled tube could be used.
The colour blocks used in connection with printing machines of the kind above
described are made up of different colouring materials arranged mosaic like in
any desired design, and an impression is taken of the latter in all the colours
simultaneously or by one pull. We employ an improved medium for combining
with the colouring matters or pigments to be used. This medium consists of
mineral or earth wax, vegetable and animal wax either singly or in combination:
animal, vegetable and mineral oils either singly or in combination, and a small
proportion of animal fat. The proportions of these ingredients which we have
found to give good results in practice are as follows, viz., 8 parts of Japanese wax,
2 parts of cerosine wax, 1 part of castor oil and 1 part of mutton fat, although
it will be understood that these proportions may be varied as required for the
different colours. These ingredients are melted and well mixed and the compound
formed is then mixed individually with the several colouring matters previously
ground; the said compound and colouring matter being mixed in about equal
proportions by weight. The several colouring matters so made are formed into
a mosaic-like block according to the desired design, and after the block has been
planed or rendered perfectly even of surface and in thickness it is ready for use
in the printing machine in the ordinary manner. The sliding box or coffin is
reciprocated in the usual manner.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. In polychrome printing machines of the kind described, the described means
for feeding the colour-block bed, such means comprising a cross-shaft adapted to
be operated through pawl and ratchet mechanism actuated by the reciprocating
motion of the sliding box or coffin, and side shafts adapted to be revolved by the
rotation of the said shaft through the medium of worm and spur gear, the said
side-shafts rotating the elevating nuts by suitable means such as bevel gear,
substantially as herein before described.
2. In polychrome printing machines of the kind described, the employment
of an adjustable frame or chase for the colour-block, comprising angle or cross-
bars supported upon two longitudinal bars, adjustably fitted to the box or coffin,
and having between them two bars formed in overlapping sections, all the bars
being provided with suitable means such as slots, studs, bolts and nuts whereby
the size of the frame or chase can be adjusted to take different sized colour-blocks,
substantially as hereinbefore described.
3. In polychrome printing machines of the kind described and wherein the
colour block is automatically raised the combination with the said colour block of
a chase through which it is forced before an impression is taken, substantially
as, and for the purposes, hereinbefore described.
4. In polychrome printing machines of the kind described, the employment for
heating the printing cylinder of a heating jacket formed in the said cylinder,
the said heating jacket being supplied with heating fluid through the hollow shaft
or trunnions of the printing cylinder, substantially as hereinbefore described.
5. A medium for the manufacture of the colour blocks used in polychrome

page_text: printing, such medium consisting of mineral or earth wax, vegetable and animal
wax, animal, vegetable and mineral oils and animal fat in substantially the pro-
portions above named, the said ingredients being melted and well mixed with the
several colouring matters individually in about equal proportions by weight, of
medium and colouring matter, substantially as hereinbefore described.
6. The combination and arrangement of parts forming the improved polychrome
printing machine, herein before described and illustrated in the accompanying
drawings.
1000
Jated the ord way
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.