Improvements in Lithographers' and Printers' Inking and Damping Rollers.
Year: 1893

page_text: Date of Application, 15th Feb., 1893
Complete Specification Left, 15th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL
SPECIFICATION.
Improvements in Lithographers' and Printers' Inking and Damping
Rollers.
I, FRANK HORSELL, Managing Director of the Firm of Frank Horsell & Co.
Limited, of 47 Meadow Road, in the City of Leeds, and County of York,
Printing Ink Manufacturer, do hereby declare the nature of this invention to be
as follows:-
:-
This invention refers to the covering placed over rollers employed in lithographic
or printing machines, and also for hand rollers for inking and damping purposes.
Hitherto lithographic inking rollers have been covered with one or more layers
of flannel, felt, or other suitable fabric or material, but the meeting sides or edges
of these coverings have been connected together by stitching, which was a tedious
method causing an uneven surface, whilst in course of time the stitching became
loose and fresh "packing" had to be substituted. It has also been customary
to make the outer covering of the inking rollers (which receive and distribute the
printing ink) of leather, the meeting sides or edges of which were also joined
together by a suitable form of stitching.
With respect to rollers employed for damping, it has also been the custom to
cover them with one or more layers of felting or other suitable material and
an outer covering of moleskin, swanskin, or other suitable material, all of which
have likewise had the meeting edges or sides stitched or sewn together, causing loss
of time and an unevenness which is both inconvenient in the working and rapidly
gives way in the necessary scraping of the rollers when cleaning.
In covering lithographic, inking and damping rollers according to my invention,
I cover them with a seamless tube composed of any suitable fibrous material.
These seamless tubes are either woven or knitted, and they are made of suitable
diameter so as to be drawn tightly over the lithographic, inking, damping, or
printing rollers and if thought expedient, these seamless tubes may be employed
either as under covering or "packing in any required number, or as the outer
covering of the said roller, but if used as an outer covering instead of leather, it
may be necessary to saturate or coat the seamless covering with a suitable solution
or composition, so as to prevent the printing ink penetrating through the said outer
covering and being absorbed by the covering underneath.
"
By employing seamless tubes for covering rollers employed for lithographing,
inking, damping, and printing, a considerable saving of time and of material will be
effected, in addition to which, the said seamless coverings will be more durable than
those put on by stitching, and by avoiding the unevenness caused by stitching, a
much more satisfactory roller is produced.
In printing rollers, it is usual to bind the stocks of the rollers with tapes, cords,
or other like material so as to cause the usual roller-composition to adhere more
tightly thereto. It is my intention to dispense with these tapes or cords and to
cover the roller with a seamless tube of suitable fibrous material stretched tightly
thereon, which tubes will form a firm and more reliable foundation for the roller
composition; but instead of using the roller composition for an outer covering, one
of these seamless tubes may be used, and I may-if necessary-also cover the
composition with one of these seamless tubes.
1000
TASKER & CROSSLEY,
Halifax, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Lithographers' and Printers' Inking and Damping
Rollers.
I, FRANK HORSELL, Managing Director of the Firm of Frank Horsell & Co.,
Limited, of 47, Meadow Road, in the City of Leeds, and County of York, Printing
Ink and Roller Manufacturer, 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 refers to the covering placed over rollers employed in lithographic
or printing machines and also for hand rollers for inking, distributing, damping,
and other purposes. Hitherto lithographic rollers have been covered with one or
more layers of flannel, felt, or other suitable fabric or material, but the meeting
sides or edges of these coverings have been connected together by stitching, which
was a tedious method causing an uneven surface, whilst in course of time the
stitching became loose and fresh "packing" had to be substituted.
It has also been customary to make the outer covering of the inking rollers
(which receive and distribute the printing ink) of leather, the meeting sides or
edges of which were also joined together by a suitable form of stitching. With
respect to rollers employed for damping, it has also been the custom to cover them
with one or more layers of felting or other suitable material and an outer covering
of moleskin, swanskin, or other suitable material, all of which have likewise had
the meeting edges or sides stitched or sewn together, causing loss of time and an
unevenness which is both inconvenient in the working and rapidly gives way
in the necessary scraping of the rollers when cleaning, and also with wear
and tear.
In covering lithographic inking and damping rollers according to my invention, I
cover them with a seamless tube composed of any suitable animal, vegetable or
other fibre. These seamless tubes are either woven or knitted, and they are made
of suitable diameter to allow of their being drawn tightly over the lithographic
inking, damping, or printing rollers and if thought expedient, these seamless tubes
may be employed either as under covering or "packing" in any required number,
and also as the outer covering of the said rollers, but if used as an outer covering
instead of leather, it may be necessary to saturate or coat the seamless covering
with a suitable solution or composition so as to prevent the printing ink penetrating
through the said outer covering and being absorbed by the covering underneath.
By employing seamless tubes for covering rollers employed for lithographing,
inking, damping, and printing, a considerable saving of time and of material will be
effected, in addition to which, the said seamless coverings will be more durable than
those put on by stitching, and by avoiding the unevenness caused by stitching, a
much more satisfactory roller is produced.
In printing rollers, it is usual to bind the "stocks"" of the rollers with tapes,
cords, or other like material so as to cause the usual roller composition to adhere
more tightly thereto.
It is my intention to dispense with these tapes or cords and to cover the rollers
with a seamless tube of suitable fibrous material stretched tightly thereon, which
tubes will form a firm and more reliable foundation for the roller composition, but
instead of using the roller composition for an outer covering, one of these seamless
tubes may be used, and I may if necessary-also cover the composition with one
of these seamless tubes. The solution, cement or composition used for covering the
seamless tubes may be of any suitable ingredients which will answer the purpose
required, but I make no claim to cement per se but only the application of cement or
varnish to the seamless tubes.

page_text: 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 :-
Firstly. The application to lithographer's and printer's rollers of a woven
seamless tube to be used as an outer covering and as an under covering (or
packing") as described.
Secondly. The application to lithographer's and printer's rollers of a woven
seamless tube having a covering of suitable cement or solution and used as an under
or outer covering as described.
Dated this 14th day of November 1893.
TASKER & CROSSLEY,
Halifax, Agents.