Improvements in and relating to the Printing or Stamping of Colours on Sacks, Bags. Posters and the like.
Year: 1897

page_text: Date of Application, 13th Jan., 1897
Complete Specification Left, 13th Oct., 1897-Accepted, 20th Nov., 1897
Improvements in and relating to the Printing or Stamping of Colours
on Sacks, Bags. Posters and the like.
We, JOHN GARVIE KINMOND, Manager, and DAVID PEEBLES KIDD, Engineer
to the Trades Lane Calendering Company, Limited, of Trades Lane, Dundee, both
of Dundee, in the County of Forfar, Scotland, do hereby declare the nature of this
invention to be as follows:-
This invention has for its object to stamp or print sacks, bags or posters and the
like with two or more colours, such colours being applied the one after the other
by a complete machine.
In carrying our improvements into effect two or more printing cylinders suitably
arranged around a central supporting cylinder are employed, one for each colour
required, and the stamps or devices are arranged and secured on the circumference
or outer surface of the cylinders.
The stamps on the cylinders are supplied or coated with the printing ink or
colours by an arrangement of rollers working in a colour trough in the known way.
The inking rollers are capable of being adjusted in all directions, the colour
troughs being also capable of adjustment relative to their inking rollers. The
sacks, bags, or posters are preferably carried by a travelling band under the first
printing cylinder and are stamped while so travelling by the stamps or devices
thereon, the bag and the travelling band passing between the printing cylinder
and the central supporting cylinder. After the article is stamped by the first
cylinder, it is carried preferably by the band between the second printing cylinder
and the central cylinder and so on. The distances between the printing cylinders
are so arranged that the article operated upon is always gripped by one printing
cylinder and the central cylinder. It is obvious that a machine of this type may be
used for web printing.
Devices are employed for accurately adjusting the relation of the cylinders to
one another and to the central cylinder circumferentially, laterally, radially and
angularly.
The central supporting cylinder and the printing cylinders are preferably of the
same diameter in order that spur wheels of equal diameter may be employed. Some-
times the printing cylinders are of different diameters to that of the central
cylinder, in which case the driving wheels are of such diameters as are
suitable.

page_text: Retaining rollers, clips, spikes or other like devices may be employed to carry
the material from one cylinder to the other.
The cylinders may be driven by chains or other suitable gearing in order to
ensure accuracy of register.
Improvements in and relating to the Printing or Stamping of Colours
on Sacks, Bags, Posters and the like.
We, JOHN GARVIE KINMOND, Manager, and DAVID PEEBLES KIDD, Engineer to
the Trades Lane Calendering Company Limited, of Trades Lane, Dundee, both of
Dundee, in the County of Forfar, Scotland, 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 developments which have been made on our invention
described in our Specification No. 20763 of A.1. 1896 and has for its object to stamp
or print sacks, bags or posters and the like with two or more colours, such colours
being applied the one after the other by a complete machine.
And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended three explanatory sheets of drawings in which the same reference
numerals are used to indicate corresponding parts in all the figures where shown.
Figure 1. (Sheet 1) is a side elevation of a machine intended for printing with
two colours.
Figure 2. (Sheet 2) is a plan of same.
Figure 3. (Sheet 3) is an end elevation looking in the direction of the arrow A.
(Figure 1).
In carrying our improvements into effect two or more printing cylinders 10.
suitably arranged around upon a central supporting cylinder 11. are employed,
one for each colour required, and the stamps or devices are arranged and secured
on the circumference or outer surface of the cylinders.
The stamps on the cylinders 10. are supplied or coated with the printing ink or
colours by an arrangement of rollers 12. and 13. working in a colour trough 14.
in the known way. The inking rollers are capable of being adjusted in all directions,
the colour troughs being also capable of adjustment relative to their inking rollers.
The method of carrying out these adjustments is more particularly shown in our
Specification No. 20763 of A.D. 1896.
After being fed into the machine as illustrated in the accompanying drawings
The sacks, bags, or posters are preferably carried by a travelling band-
which is supported and driven by the roller 15. and the central supporting
cylinder 11, the retaining roller 16. being used as a guide to keep such band more
fully in contact with the cylinders 11.-under the first printing cylinder Z. and are
stamped while so travelling by the stamps or devices thereon, the bags and the
travelling band passing between the printing cylinder and the central supporting
cylinder 11.
After the article is stamped by the first cylinder, it is carried,
preferably by the band between the second printing cylinderr Y. The distances
between the printing cylinders are so arranged that the article operated upon is
generally gripped by one printing cylinder and the central supporting cylinder.

page_text: Provision is may be made for throwing the second printing cylinder Y. out of gear
should it at any time be found desirable to print with one colour only. We do so
by means of the circular bushes 17. which are bored eccentrically for the arbor 18.
The levers 19. are attached to or form part of the bushes 17. and by turning
such bushes round, by their means we are enabled to raise the printing cylinder
from contact with the central supporting cylinder.
It-is-obvious-that-a-machine-of-this-tyre-may-be-used-for-web--printing-although
Tthe object of this invention is the printing of detached pieces of varying lengths.
Devices are employed for accurately adjusting the relation of the cylinders to one
another and to the central cylinder, circumferentially, laterally, radially and angularly.
The printing cylinders are adjusted by means of pieces of metal or wood 20. of
suitable thickness placed at the ends or under the pillow blocks in the known way.
The central supporting cylinder 11. is carried by the bushes 21. which can slide
vertically in either direction in guides 22. A certain amount of elasticity, to allow
for varying thickness of material or type, is obtained by the supporting springs 23.
The central supporting cylinder and the printing cylinders are preferably of the
same diameter, in order that spur wheels 24. of equal diameter may be employed.
Sometimes the printing cylinders are of different diameters to that of the central
cylinder, in which case the driving wheels are of such diameters as are suitable.
Retaining rollers, clips, spikes or other like devices may be employed to aid in
carrying the material from the one cylinder to the other. but these form no part of
our invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
(1) In machines for the printing or stamping of colours on sacks, bags, posters and
the like, the combination and arrangement of parts, substantially as hereinbefore
described with reference to Figures 1. 2. and 3. of the accompanying drawings.
(2) In machines for the printing or stamping of colours on sacks, bags, posters
and the like, the combination and arrangement of parts consisting of the printing
cylinders and the central supporting cylinder substantially as described.
(3) In-machines-for-the-printing-or-stamping-of-colours-on--sacks, bags,--posters
and-the-like-the-combination-and-arrangement-of-parts-for-permitting-of-the-print-
ing-in-one-colour;-as-described.
GEO. C. DOUGLAS & Co.,
41 Reform Street. Dundee.
Agents for Applicants.