Improvements in the Manufacture of Pulp Ware, particularly applicable for Buoyant Articles.
Year: 1896

page_text: Date of Application, 12th Mar., 1896
Complete Specification Left, 31st Dec., 1896-Accepted, 6th Feb.. 1897
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Pulp Ware, particularly
applicable for Buoyant Articles.
I, HENRY THAME, of 3 Wyfold Villas, Yiewsley in the County of Middlesex,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to the manufacture of pulp ware, and is particularly
applicable for the manufacture of articles having buoyant qualities, or which have to
hold or resist the entry of liquids. The object of my invention is to joint parts of
pulp or fibrous material to form any hollow, recessed, or other article, so as to be
water-tight at the joint, and to be of considerable strength at that part; for
example, it is very applicable for the manufacture of hollow life buoys formed
of pulp.
To carry out this invention I take a solution of rubber and sulphur in naptha, or
other suitable solvent.
The pulp ware having been previously impregnated with a solution of rosin and
linseed oil, or other suitable waterproofing material, is thoroughly dried, and the parts
to be joined are moistened with the solution above mentioned.
When the solvent has evaporated, a thin strip of india rubber or gutta percha or
other vulcanizable gum or gums prepared with 30 to 50 per cent. of sulphur, is.
applied to the parts to be joined such parts are then brought together and kept there
by suitable clamps.
The articles thus clamped together are placed inside a suitable vulcanizing apparatus,
and kept at a temperature of 320° Fht. for one or two hours.
By this means a perfectly firm and water-tight joint is obtained.
The ends and divisions of hollow or other pulp-ware, of any form or shape can thus
be formed in any article by the same method.
Dated this 19th day of March 1896
FELL & JAMES,
1 Queen Victoria Street, London, E.C., Agents for the Applicant.
Improvements in the Manufacture of Pulp Ware, particularly
applicable for Buoyant Articles.
I, HENRY THAME, of 3, Wyfold Villas, Yiewsley, in the County of Middlesex,
Engineer, 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 the manufacture of pulp ware and is particularly applicable
for the manufacture of articles having buoyant qualities or which have to hold or
resist the entry of liquids. The object of my invention is to joint parts of pulp or

page_text: fibrous material to form any hollow or recessed or other article so as to be water-tight
at the joint and to be of considerable strength at that part, for example, it is very
applicable for the manufacture of hollow life buoys formed of pulp or for the felloes
of wheels for cycles and other vehicles made of pulp, where it is desirable that the
joint should be strong and unaffected by external moisture or damp.
To carry out this invention I take a solution of rubber and sulphur in naptha or
other suitable solvent.
The pulp ware having been previously impregnated with a solution of rosin and
linseed oil or other suitable water-proofing material is thoroughly dried and the parts
to be joined are moistened with the solution above mentioned.
When the solvent has evaporated a thin strip of india-rubber or gutta percha or
other vulcanizable gum or gums prepared with 30 to 50 per cent. of sulphur is applied
to the parts to be joined such parts are then brought together and kept there by
suitable clamps.
The articles thus clamped together are placed inside a suitable vulcanizing
apparatus and kept at a temperature of 320° Fahrenheit for one or two hours,
or for such other time as is requisite to ensure a perfect hardening of the prepared
rubber.
By this means a perfectly firm and water-tight joint is obtained.
The ends and divisions of hollow or other pulp ware of any form or shape can
thus be formed in any article by the same method."
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 :-
In the manufacture of pulp ware, the process of joining the parts of the said ware
substantially as described and for the purpose herein specified.
Dated this 30th day of December 1896.
FELL & JAMES,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.