IMPROVEMENTS IN PRINTING MACHINES
Year: 1885

page_text: I JOHN HENRY JOHNSON of 47 Lincoln's Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN PRINTING MACHINES" which Invention has been communicated to me from
abroad by R. Hoe and Company of the City County and State of New York in
the United States of America Printing Machine Manufacturers to be as follows:-
This Invention relates to printing mechanism which may be of any kind provided
two webs are simultaneously printed on; both sides of each web being printed on
alike but with different matter on the opposite sides of a web. Since, however the
relative positions of the two webs as they issue from the printing mechanism is not
the same in all machines it is necessary to consider three different cases.
In the first case the printing mechanism is such that the webs issue with their
edges in the same pair of parallel planes, but one web is in the way of the free
passage of the end of the other web.
In the second case the printing mechanism is such that the webs issue in the
same pair of parallel planes and with their ends free from one another.
In the third case the printing mechanism is such that the webs issue from the
printing mechanism at an angle to one another.
•
This Invention consists in combining with the printing mechanisms arranged to
perfect two webs slitting mechanisms and turning bars arranged to turn and
associate a strip or strips of one web with those of the other web and thus forin
two side by side streams running laterally out of the machine or to turn the webs
and associate strips of one web with the upper and under sides of opposite halves
of the other web.

page_text: Improvements in Printing Machines.
I JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex,
Gentleman do hereby declare the nature of this Invention which has been commu-
nicated to me from abroad by R. Hoe & Company of the City County and State
of New York in the United States of America Printing Machine Manufacturers
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 web printing machines which print simultaneously on
both sides of two webs each web being printed on alike but with different matter
on the opposite sides of the web-The particular printing mechanism by which
this result is attained is immaterial to this Invention except as regards the relative
position of the two webs as they issue from the printing mechanism which may be
Buch that their edges are in the same pair of parallel planes but one web in the
way of the passage of the other web or the webs may issue with their edges in the
same pair of parallel planes but free from each other; or the printing mechanism
may be such that the webs issue at an angle to one another, as is shewn in the
Specification to Letters Patent No 2886-1882.
The object of this Invention is to cause the two webs to pass together out of the
machine in two side by side streams.
The Invention consists in combining with the printing mechanism slitting
mechanism and turning bars, arranged to turn and associate a strip or strips of
one web with the other web, and thus produce two side by side streams of like
products, all as is more specifically hereinafter setforth and claimed Practical
embodiments of this Invention are shewn in the accompanying drawings in
which―
Figure 1 is a side elevation figure 2 an end elevation Figure 3 a plan view, of
printing mechanism provided with these improvements.
In this printing mechanism the webs issue with their edges in the same pair of
parallel planes, but one web is in the way of the free passage of the end of the
other web that is the course of the web B, after it has been printed on both sides,
is impeded by the web A.
The web A is printed upon one side by passing between the impression
cylinder H and form cylinder C-It then passes over leading rollers 11, and
is printed upon its opposite side by passing between the impression cylinder K
and form cylinder D From these cylinders it is carried over leading roller k¹ and
thence passes to the turning bars.
The web B passes between the form cylinder D and impression cylinder G
whereby it is printed upon one side, then "between impression cylinder F and form
cylinder C whence it issues printed on both sides-Its further course is confined
(unless it is deflected) within a certain space by the web A and hence it is directed
to turning bars that deflect it, and which, co-acting with the turning bars by which
the other web is deflected, it is brought into proper correlation to that web so as to
be combined there with in the formation of a useful product.
The arrangement of the turning bars will be understood from a further description
of the course of the webs, but it must first be stated that one or both of the webs

page_text: may be longitudinally split along a central line by any suitable mechanism, either
before after, or during the passage through the printing machine.
The turning bars a 6' 6' are fixed cylinders lying parallel to one another and
arranged at an angle to the axes of the printing cylinders.
The web A from the leading roller k³ passes around the turning bar a and thence
between drawing rollers rr The web B after it has been printed passes between
the slitting mechanism L L, which as shown is composed of two cylinders, the upper
of which is provided with a groove and the lower with a circular knife-In passing
this slitting mechanism the web B is divided into two strips-One strip say B¹ is
then led around turning bar b¹ thence around turning roller d and is returned
around the roller e¹ and thence passes between the drawing rollers rr on the top of
one half of web A-The other half of web B say strip B is conducted around the
turning bar 6 thence around the roller e and passes between the drawing rollers rr
underneath the other half of web A and by the side of the strip B¹.
The web A must ultimately be slit longitudinally along its central line but the
mechanism for doing this is not shewn because the said slitting may take place
either before or after its passage over the turning bar a while the web B must be
slit before its passage round the turning bars Thus is produced two side by side
streams with no space between them and if the forms have been placed on the
form cylinders in suitable order the two streams will be identical in every
respect.
It is obvious that by slitting the web A before it is deflected, and by suitably
placing the parallel turning bars, the two streams may be caused to have any
desired space between them and in this case, if preferred, the two strips or halves
of web A may be associated together as may also the two strips or halves of the
web B as by leading one strip of A over turning bar a and the other strip of A
over turning bar b and one strip of B over turning bar 6' and the other strip of B
over turning bar a.
In figures 4 and 5 the former being a side elevation and the latter a plan view
is shown (seen from the under side, the strip B¹ being shown as broken away
between the dotted lines) the case where the axes of the printing cylinders and
leading rollers are parallel to one another as they may be, for the reason that the
webs issue from the printing mechanism free from one another and hence the webs
may be treated as in the preceding case-As shown however the web A is led
between a suitable slitting apparatus for dividing it longitudinally such as the
cylinders X X one of which has a cutting groove and the other a circular knife-
From this slitting mechanism the strip or half web A¹ is led around the turning
bar g' passing downward over it and thence upward and forward around the
turning bar g¹ and thence between the drawing rollers r (only one of which is
shown) The half web or strip A³ passes under and upward around turning bars g
thence rearward and downward round the turning bar g³ and thence forward
between the drawing rollers 7 The web B passes between a suitable longitudinal
slitting machine (shown as cylinders Y Y,) which may be constructed as are the
cylinders XX-The half web or strip B¹ thence passes over roller o* and under
roller o³ and thence passes directly forward between the drawing rollers rr under-
neath the half web or strip A' while the half web or strip B³ goes under roller o
and thence passes up between the bars g* g¹ thence over the roller o' and finally
passes between the drawing rollers rr above the half web A¹.
It is also clear that the webs may be similarly treated when the printed webs
issue from parallel cylinders which are not opposite one another For example
(in Figure 1) if we imagine the web A moved along so as to be no longer opposite
the web B then correspondingly move the bar a parallel to itself the webs would
still pass between the rollers r r as they do in said figure.
Where the printing mechanism is such that the webs issue at an angle to one
another as they do in Figure 10 of the drawings accompanying the Specification
herein before referred to in this case as is shown in Figure 6 the bar a is no longer
parallel to the turning bars 6' 63 but inclines thereto at an angle equal to the angle

page_text: '
between the edges of the two webs on entering the apparatus and indeed if desired
the bar a may be dispensed with altogether (in other words the web A need not be
deflected) by fixing the parallel bars 61 62 at an angle to the edge of the web B
equal to half the angle between the aforesaid edges of the two webs-The drawing
rollers and the rollers for bringing the webs into the same plane after they have.
been deflected are omitted in this figure.
The web A coming from one direction is turned over the bar a and thence passes
outward toward the rollers T The web B, split longitudinally has its strip B¹
turned over the bar b' and it thence passes out on top of one side of the web A
The strip B' of the web B is turned over the bar 6 and thence passes outward
under the other side of the web A.
'
Thus in whatever way two webs issue from a printing mechanism and whether
a four an eight or a twelve page paper be imprinted thereon they can be brought
into two side by side streams which may be regarded with reference to after.
folding and delivery as consisting of four page papers with their pages the same
way upon both streams and if the printing mechanism is wide enough to print a
sixteen page or even a larger paper this mechanism might be employed to conduct
the two webs together and produce two like side by side streams.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what
I claim is-
First. The combination with printing mechanism arranged to perfect two webs
and a slitting mechanism of turning bars arranged to turn and associate strips of
one with the other and thus form two sides by side streams of like products
running laterally out of the machine all substantially as described.
Second. The combination with printing mechanism arranged to perfect two webs
and a slitting mechanism of turning bars arranged to turn the webs and associate
strips of one web with the upper and under sides of opposite halves of the other
web, all substantially as described.
Third. The combination with printing mechanisms arranged to perfect two webs
and slitting mechanism operating to split each web into two strips of turning bars
arranged and operating to transfer and associate the strips of one web with the
opposite strips of the other web whereby the two opposite strips of both webs are
brought together and form two streams of like products running side by side all
substantially as described.
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