Year: 1886

page_text: Date of Application, 17th May, 1886.
Complete Left, 17th Feb., 1887.
Complete Accepted, 18th Mar., 1887.
I, THOMAS GALLOWAY DAWSON, of the firm of William Dawson and Sons, Ashfield
Foundry, Otley, in the County of York, Printers Engineer, do hereby declare the
nature of this invention to be as follows:-
This invention has for its object the arrangement of the impression and blanket
cylinders in such a position as will give easy access to the same for fixing the stereo-
type plates and for other purposes in that class of machines known as web printing
machines, and consists in arranging such cylinders in the following manner.
The first, type or impression cylinder is in the same horizontal plane as the first
blanket cylinder, that is, the centres of the impression and blanket cylinders are in the
same horizontal plane. The second impression cylinder and blanket cylinder are at
right angles to the first, the centres being in the same vertical plane, and so arranged
that a line drawn through the centres of the two former, passes midway between
the two latter.
By such an arrangement, the type or impression cylinders are within easy reach of
the operator and the machine generally can be built in a more compact form, being
much lower in elevation, less liable to vibration and the several parts more accessible
than is the case with machines having the cylinders mounted in the usual manner.

page_text: I, THOMAS GALLOWAY DAWSON, of the firm of William Dawson and Sons, Ashfield
Foundry, Otley, in the County of York, Printers' Engineers, 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 has for its object the arrangement of the impression and what are
commonly termed the blanket cylinders in such a position, as will give easy access to
the same for fixing the stereotype plates and other purposes in that class of machines
known as web printing machines; and consists in arranging such cylinders, so that
the first type or impression cylinder is in the same plane as the first blanket cylinder,
and the centres of the second pair of cylinders at right angles to the first, that is the
same are vertical.
In describing my invention in detail, reference is made to the accompanying
drawing, which represents the outline of such portions of a rotary web printing
machine, as are required to describe my invention.
The web or roll of paper A; and the two sets of inking and distributing rollers B,
are mounted and operated in the usual manner; the blanket covered cylinders C,
and D, being mounted on rigid, and the impression cylinders C, and D', on adjustable
journals of similar construction to those used in machines with the cylinders placed in
the usual position.
The first type or impression cylinder C, is in the same horizontal plane as the first
blanket covered cylinder C, that is, the two cylinders are in the same plane. The
centres of the second type or impression cylinder D', and the blanket covered
cylinder D, are placed in about the same vertical plane, at right angles with the
centres of the first named cylinders, and at such an elevation, that a line drawn
through the centres of the two former, will pass about midway between the two latter,
or through where the circumferences of the two cylinders come in contact.
By arranging the cylinders in the manner described, the type or impression
cylinders are more accessable, being within easy reach of the operator, and the
machine generally can be built more compact; the cylinders and other rotary portions
being at a lower elevation and therefore more accessable, with less liability to
vibration than is the case with machines having the cylinders mounted in the usual
position.
Having now particularly described and ascertained the nature of this invention, and
in what manner the same is to be performed, I declare that what I claim is.
The mounting in a printing machine of one pair of cylinders at or about right
angles with the other pair substantially in the manner and for the purpose herein
sat forth