Year: 1897

page_text: OTTO ROBERT HEINRICH SCHMIDT, of Welton House, 8, Park Road,
Forest Hill, in the County of Kent, Merchant, as a co-applicant.
The Printed Specification will therefore read in accordance with this
amendment; and, in addition, the personal pronoun "I" throughout the
text will read "we," to further agree with the original.

page_text: Date of Application, 19th Jan., 1897
Complete Specification Left, 19th Oct., 1897- Accepted, 19th Jan., 1898
PROVISIONAL SPECIFICATION.
Improvements in Printers Roller Composition or the like.
I, WILLIAM JOSEPH JOHN HAWKINS, of 128, Euston Road, in the County of
Middlesex, Manufacturer of Printers Roller Composition, do hereby declare the
nature of this invention to be as follows:-
The invention relates to improvements in printers roller composition or the
like.
It is well known that the composition employed for the manufacture of
printers rollers is much affected by atmospheric changes, that is to say, in hot
dry weather it will part with some of its moisture and shrink or contract,
whilst in damp weather it will take up a considerable proportion of moisture
and correspondingly swell, and these variations are so pronounced that it is
necessary to frequently regulate the bearings of the rollers in order to compensate
therefor.
Now the object of the present invention is to obtain a composition which will
be less affected, or remain unaffected, by the condition of the atmosphere, thereby
removing or modifying the difficulty above pointed out.
In carrying the present invention into effect the composition is composed
mainly of well known ingredients such as glue, water, glycerine, and sugar, but
according to the present invention a suitable proportion of mica in a finely
divided state is incorporated therewith.
The following proportions of the ingredients named, have experimentally been
found to answer the purpose in view, but it will be understood that in practice
may
be found that such proportions and more especially that of the mica
it
Le venied with advantage
A convenient way of making the composition is first to combine the ingredients
minus the mica, in the ordinary way, and then, whilst the composition is in
a fluid condition, to add the mica thereto, and care must be taken that the
same is by suitable means thoroughly stirred in and mixed with the other
ingredients, and the composition is afterwards run off into moulds or otherwise
treated in the ordinary way.
Composition of this character possesses many advantages, amongst which may
be named that it is practically impervious to or non-absorbent of moisture, is
not materially affected by considerable heat, is exceedingly tough, more durable
á
than other compositions, whilst at the same time the qualities necessary in
printers roller remain unimpaired.

page_text: Although the invention is herein before described in connection with printers
rollers it will be understood that it is equally applicable to similar compositions
employed in the manufacture of the well known gelatinous printing surfaces.
Dated this 19th day of January 1897.
[]
WHITE & WOODINGTON,
27, Southampton Buildings, London, Agents.
COMPLETE SPECIFICATION.
Improvements in Printers Roller Composition or the like.
**
I, WILLIAM JOSEPH JOHN HAWKINS, of 128, Euston Road, in the County of
Middlesex, Manufacturer of Printers Roller Composition, 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:-
(.
'
The invention relates to improvements in printers roller composition or the
like.
It is well known that the composition employed for the manufacture of
printers rollers is much affected by atmospheric changes, that is to say.. in hot,
dry weather it will part with some of its moisture and shrink or contract,
whilst in damp weather it will take up a considerable proportion of moisture
and correspondingly swell, and these variations are so pronounced that it is
necessary to frequently regulate the bearings of the rollers in order to compensate
therefor.
Now the object of the present invention is to obtain a composition which will
'be less affected, or remain unaffected, by the condition of the atmosphere, thereby
removing or modifying the difficulty above pointed out.
'
In carrying the present invention into effect the composition is composed
mainly of well known ingredients such as glue, water, glycerine, and sugar, but
according to the present invention a suitable proportion of mica in a finely
divided state is incorporated therewith.
The following proportions of the ingredients named, have experimentally been
found to answer the purpose in view, but it will be understood that in practice
it may be found that such proportions and more especially that of the mica
may be varied with advantage.
A convenient way of making the composition is first to combine the ingredients,
minus the mica, in the ordinary way, and then, whilst the composition.is, in
a fluid condition, to add the mica thereto, and care, must be taken that the
same is by suitable means thoroughly stirred in and mixed with the other
ingredients, and the composition is afterwards run off into moulds or otherwise
treated in the ordinary way.
1'
Composition of this character possesses many advantages, amongst which may
be named that it is to some extent, impervious to or nonabsorbent of moisture, is
not materially affected by high temperaturés, is exceeding tough, more durable
than other compositions, whilst at the same time the qualities necessary in a
printers roller remain unimpaired.
Although the invention is hereinbefore described in connection with
printers

page_text: rollers it will be understood that it is equally applicable to similar compositions
employed in the manufacture of the well known gelatinous printing surfaces.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
The combination with printers roller composition or the like of mica in a finely
divided state substantially as herein described and for the purpose stated.
1004
WHITE & WOODINGTON,
27, Southampton Buildings, London, Agents.