IMPROVEMENTS IN PRINTING MACHINERY
Year: 1883

page_text: LETTERS PATENT to George William Osborn and Doctor Walsh Yates, both
of King's Road, Chelsea, in the County of Middlesex for an Invention of
LETTERS PATENT to George William Osborn and Doctor Walsh Yates, both
of King's Road, Chelsea, in the County of Middlesex for an Invention of
IMPROVEMENTS IN PRINTING MACHINERY.
PROVISIONAL SPECIFICATION left by the said George William Osborn and
Doctor Walsh Yates at the Office of the Commissioners of Patents on the
18th December 1883.
GEORGE WILLIAM OSBORN, and DOCTOR WALSH YATES both of King's Road,
Chelsea, in the County of Middlesex, "IMPROVEMENTS IN PRINTING MACHINERY
"
Our invention has reference to printing machinery such as is used for printing
continuous sheets of paper such as paper hangings with more than one colour, or
with a colour or colours and a mordant or mordants to receive leaf such as gold
leaf.
Our improvements have for object to ensure such a correct register or fitting
that the material printed upon can be again passed through the same or another
machine fitted with our improvements, so that an additional colour or colours or
mordant or mordants or both may be printed on the previously printed material,
with correct register or "fitting"
Our invention has reference to the use of a horizontal roller capable of
movement in a vertical or approximately vertical sense, under which roller, when
material to be printed, is drawn from the reel, it is caused to pass. Also to the
use of a flanged roller for guiding the material in a straight course.
In conjunction with this roller we in some cases use also a trough like guide.
Also our invention relates to the arrangement of the feeding roller in connection
with the printing cylinder as hereinafter described.
And in order that the nature of our invention may be clearly understood we
proceed to describe the operation of a machine embodying our several improvements,
and for this purpose, we will assume that the material to be printed is paper and
that it is reeled. Under these conditions the paper to be printed is caused to pass
from the reel, which may or may not be provided with a suitable brake (it may be
[Price 6d1

page_text: between a roller turning in suitable bearings, and a second roller situate above the
first named roller and in contact therewith) under a small horizontal roller
capable of vertical or approximately vertical movement between guides or frames.
From this roller the paper proceeds upwards and over a roller provided with end
flanges, thence (it may be over a trough-like guide, and, by a zigzag or downward
and upward course under and over tightening rollers or bars) to a feed roller that
is in gear with the printing cylinder so as to run at the same surface speed. On
the top of this roller is placed another, and between these two rollers the paper
is fed to the printing cylinder, at a uniform speed with that of the surface of the
said printing cylinder. The paper passes down under the printing cylinder and
between it and the printing roller and thence away as required.
In some cases, as for instance when it is not reeled, the paper may be taken into
the machine direct to the roller provided with end flanges.
Machines having our invention applied thereto may obviously be employed for
printing materials other than paper.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said George William Osborn and Doctor Walsh Yates in the Patent
Office on the 17th June 1884.
GEORGE WILLIAM OSBORN and DOCTOR WALSH YATES, both of King's Road.
Chelsea, in the County of Middlesex. IMPROVEMENTS IN PRINTING MACHINERY
Our invention relates to improvements in printing machinery and more
particularly to that class of such machinery used for printing continuous sheets of
paper, such as paper hangings with more than one colour or with a colour or
colours and a mordant or mordants for receiving and fixing leaf, such as gold leaf,
bronze powder or similar substances and the object of our improvements is to
ensure such a correct register or "fitting" that the material after being printed
upon can be again passed through the same or another machine fitted with our
improvements so that an additional colour or colours or mordant or mordants or
other substance or substances may be printed upon the previously printed material
with correct register or "fitting."
We attain this object by the mechanism we will now describe with reference
to the accompanying 2 sheets of illustrative drawings in which
Fig 1 is a side elevation of a machine for printing paper hangings embodying
our improvements.
Fig 2 is a plan or top view of the same; and
Fig 3 is a longitudinal vertical section.
a represents the reel of paper (such as for producing paper hangings) which
may be a plain sheet to be printed upon or a sheet which having been previously
printed upon requires to be again printed upon. The reel a which may or may
not be provided with a suitable brake is supported on a bar or axis working in
suitable bearings b secured to the framework d of the machine. The paper after
leaving the reel a passes upward and between two drawing off rollers e. e' the axis
of the roller e¹ being arranged to work in the slotted guides f of the brackets fl
whereby the whole weight of the roller e¹ is caused to bear upon the paper passing
over the roller e. The paper then passes downwards and beneath a horizontal
compensating bar or roller g rendered capable of movement in a vertical or
approximately vertical plane by reason of its axis working in slots or guides h¹
formed in the bars h arranged at both sides of the machine. It will be seen that
the weight of this bar or roller is supported by the paper or other material passing
through the machine which is thereby kept taut. The paper thence proceeds
upwards and over the flanged guiding roller i provided with adjustable flanges ¹¹
for admitting paper of different widths and guiding it in a straight course to the
printing cylinder. The paper then passes over the adjustable trough-like guide j
and thence in a sinuous or zig-zag manner under a tightening roller or bar k, over
the vertically adjustable roller and under the tightening roller or bar m to the
feed rollers n. n². Any suitable number of tightening or tension bars or rollers
may be employed for the purpose but the number and arrangement shown in the
drawings are preferred having been found to work well together. We would also
remark that in some cases the trough-like guide ; may be dispensed with but its
use is found to facilitate the production of accurate work. This trough-like guide
is carried by bars j¹ on which it can slide and be adjusted by screw-adjustment j
in order to aid in guiding the paper or other material operated upon. The roller
is made vertically adjustable as shown to assist in obtaining the necessary tension
of the paper or other material to ensure its correct rate of delivery to the printing
cylinder by the feed rollers n. n¹.

page_text: The axis of the roller n carries at one end the pinion n² which gears into the
spur wheel o secured to the axis of the printing cylinder p in such manner that the
surface velocity of the roller n and therefore the rate of delivery of the paper or
other material shall exactly correspond or practically so with the surface velocity
of the printing cylinder p. The paper or other material after leaving the feed
rollers n. n passes downward and beneath the printing cylinder and then upward
between the latter and the print roller q and away to drying apparatus or other
desired place.
The course of the paper through the machine is shown by the dotted line x
Figs 1. and 3.
To ensure the necessary grip of the paper between the rollers n. n the latter
roller (n¹)
caused to bear with its whole weight upon the roller n in the manner
shown which is similar to that described with reference to the drawing off
rollers e. e¹ (or by any equivalent means as for instance by means of springs
tending to move n¹ towards n). In order that the rate of drawing off the paper
from the reel a may correspond as nearly as possible with the rate of feeding the
same to the printing cylinder the roller e and the roller m should be of the same
diameter and geared together as shown by means of a pitch chain r gearing with
the sprocket or toothed wheels 8. 8. of equal diameter secured to the axes of the
rollers e and n or by other equivalent means. The horizontal compensating roller
or bar g is made capable of movement in a vertical or approximately vertical plane
in order to compensate for any irregular delivery of the paper from the reel a thus
should the delivery be too slow due to slipping of the paper on the roller e the
horizontal compensating roller g will immediately rise in its slots or guides h¹ and
should the delivery be too fast from any cause will immediately fall thus
compensating for the irregular delivery and preventing it affecting the rate of
delivery of the paper to the printing cylinder by the feed rollers n. nº
By these means we ensure that the design or printing that may be on the
paper shall correctly register with the design on the print roller q and which is
about to be further impressed upon it or with that to be afterwards impressed upon
it by passing it through the same or another machine having our improvements
applied thereto.
In the foregoing description it has been supposed that the paper treated is for
producing paper hangings and that it is reeled, but in those cases where it is not
reeled but in zig-zag folds or other condition admitting of its being readily drawn
into the machine by the feed rollers n, n' it may be fed direct into the machine to
the flanged guiding roller i the horizontal compensating roller g and drawing off
rollers e, e¹ not being required in this case. t, is a colour trough and t¹ the colour
blanket or carrier which together with the print roller q printing cylinder p and
the means of severally operating them are of the ordinary and well known
construction and form no part of our present invention and are only illustrated in
order to show the application of our improvements to one form of well known
paper hanging printing machine arranged to print one colour or mordant at a
time. It will however be obvious that our improvements may be readily applied
to machines printing two or more colours or a colour or colours and a mordant or
mordants and to machines for printing upon other materials than paper for paper
hangings as for instance ordinary colour printing machines.
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 a machine for printing continuous sheets of paper or other material with
two or more colours or with a colour or colours and a mordant or mordants the use
of a compensating roller or bar g arranged horizontally so as to rest upon the
paper or other material passing through the machine and able to rise and fall in a
vertical or approximately vertical plane substantially as described for the purpose
specified.

page_text: 2. In a machine for printing continuous sheets of paper or other material with
two or more colours or with a colour or colours and a mordant or mordants the use
in conjunction with a reel of paper of a compensating roller or bar g arranged
horizontally and able to rise and fall in a vertical or approximately vertical plane
in slotted guide bars h and drawing off rollers e. e¹ one of which is free to adjust
itself in a vertical or approximately vertical plane all substantially as described for
the purposes specified.
3. In a machine for printing continuous sheets of paper or other material with
two or more colours or with a colour or colours and a mordant or mordants the use
of drawing off rollers e e¹ and feeding rollers n. n¹ connected by means of sprocket
or toothed wheels 8. 8. and an endless chain r substantially as described for the
purpose specified.
4. In a machine for printing continuous sheets of paper or other material with
two or more colours or with a colour or colours and a mordant or mordants the
combination with a printing cylinder p of feeding rollers n. n¹ whereof the upper.
is placed upon the lower free to adjust itself to suit the thickness of material
passing between the said two rollers and spur wheels n² and o whereby the axis of
the feeding roller n is geared to the axis of printing cylinder p substantially as
described for the purpose specified.
5 The improved machine constructed arranged and operating as hereinabove
described and illustrated in the drawings.
In Witness whereof we the said George William Osborn and Doctor Walsh
Yates have hereunto set our hands and seals this seventeenth day of June in the
year of Our Lord One thousand eight hundred and eighty four
ARADAR
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