Improvements in and relating to Wall Paper Printing Machines.
Year: 1895

page_text: Date of Application, 17th Aug., 1895-Accepted, 5th Oct., 1895
COMPLETE SPECIFICATION.
Improvements in and relating to Wall Paper Printing Machines.
I, HAROLD WILLIAM SANDERSON, of Chiswick, in the County of Surrey,
Manufacturer of Paper Hangings, do hereby declare the nature of this invention
aud 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 improvements in and relating to wall paper printing
machines, and refers more particularly to printing machines such as described in
my Specification of Letters Patent No. 10529 dated May 30th 1894, and my inven-
tion consists in the improved construction and arrangement of parts in a wall paper
printing machine, as will be hereinafter described.
In order that my invention may be readily understood, reference is made to the
accompanying drawing which represents a side elevation of my improved machine
for printing wall papers showing the disposition of the different parts constituting
my invention.
In carrying out my invention I employ a drum or cylinder A mounted on a
suitably supported shaft a and formed or provided with a gear wheel B. Said
drum A is covered with rubber or other elastic material a' which I find in practice
is better suited for printing wall papers or the like, than felt or other like material
which has been hitherto used for this purpose. Upon a suitably supported
spindle c, I mount a printing roller C having the necessary pattern raised or in
relief on its periphery. The periphery of said printing roller is in contact with
the elastic material a on the periphery of the drum A. (unless the wall paper is
being printed) and the spindle c is provided with a gear wheel c¹ which gears with
and is rotated by the gear wheel B when the drum Å is rotated.
For the purpose of printing the pattern on the wall paper, 1 employ suitable oil
colour or ink sufficiently thinned down, which colour or ink I supply to the printing
roller from a suitably supported colour box D by means of a furnishing or inking
roller E, which furnishing roller is covered with suitable composition such as is
usually employed for this purpose. F is a doctoring roller covered with vulcanite
by means of which the amount of colour fed to the printing roller may be regulated.
I employ vulcanite as a covering for the doctoring roller as the vulcanite is not
affected by the oil colour.
The doctoring roller F is provided with a gear wheelf which may gear with a
gear wheel e on the furnishing roller E, said gear wheel e gearing with the gear
wheel so that when the drum A. is revolved the rollers C, E & F are also
revolved. In order to revolve the doctoring roller F at a relatively slower speed
than the furnishing roller E so as to produce a rubbing contact between said
rollers I may provide said doctoring roller with a larger gear wheel gearing with a
pinion on the spindle of the furnishing roller. In place of gear wheeis suitable
bands or belts may be used to transmit the motion of the rollers.
I wish it to be understood that instead of wall papers may print posters or
other pictorial advertisements or textile fabrics on a printing machine having my
improvements as described, and also that employ printing, furnishing and
doctoring rollers and a colour box for every colour to be printed on the wall paper
or the like, said rollers being disposed around the drum A in about the usual
manner.
I have found in practice that by the combination in a wall paper printing
machine of the different parts as described, the pattern will come out much sharper

page_text: than is possible when felt or like covering is used for covering the drum A, also
the vulcanite doctoring roller enables a sufficient quantity of colour or ink to be
fed on to the printing roller, said vulcanite doctoring roller ensuring that the
colour is evenly distributed on the printing roller, thereby the pattern printed on
the wall paper is of even and equal shade or tone throughout.
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 :-
A wall paper printing machine having in combination a drum A provided with a
gear wheel B and having a rubber covering on its periphery upon which the wall
paper is printed, a printing roller C mounted on a spindle c and having the pattern
to be printed in relief on its periphery, a furnishing roller E covered with printer's
composition, a doctoring roller F covered with vulcanite, a colour box D & a train
of gearing c, e & f all for the purposes and substantially as set forth.
Dated this 17th day of August 1895
HAROLD WILLIAM SANDERSON,
By his Agents, Horn, Son & Co.,
Somerset Chambers, 151 Strand, London.