Improvements in the Manufacture of Hollow Pulp Ware, particularly applicable to Buoyant Artioles.
Year: 1896

page_text: Date of Application, 20th Apr., 1898
Complete Specification Left, 31st Dec., 1896-Accepted, 13th Feb., 1897
OYISIONAL SPECIFI
Improvements in the Manufacture of Hollow Pulp Ware, particularly
applicable to Buoyant Artioles.
I, HENRY THAME, of 8 Wyfold Villas, Yiewsley, in the County of Middlesex,
Engineer, do hereby declare the nature of this invention to bo as follows :-
This invention relates to the manufacture of hollow pulp ware and is particularly
applicable to buoyant articles such as used for life saving purposes, and has for its
object the rendering of the article impervious to water or other similar liquid.
To carry the invention into effect I take wood or other pulp carefully beaten in
any of the well known ways, and I may form the article by means of pressure in
suitable moulds either with or without the use of a vacuuin or in any well known
mannor or the article may be formed direct from millboard after being soaked in
water, or half stuff or wood pulp lightly pressed from the beater engine and pressed
into shapo in suitable moulds.
The articles are then driod and placed in a solution of boiled oil and rosin for the
purpose of rendering then non absorbent and for facilitating the adhesion of the
watorproof coating hereinafter described. The parts are afterwards jointed if made
hollow and in halves in any of the well known ways.
The articles are next conted with a thin solution of rubbor, gutta percha or other
vulcanizable gum mixed with sulphur in suitable proportions.
When the solvent hus sufficiently evaporated a thin sheet of rubber or other
vulcanizable material prepared with 40 or 50 per cent. of sulphur is applied to the
onter surface of the article which is then placod in a vulcanizing apparatus and
vulcanized in the usual way. This transforins the thin sheet of rubber or other
vulcanizable material into an impervious coating of hard material.
Or the prepared rubber or other vulcanizable material may be applied in the form
of a paint or varnish in any suitable volatile medium or solvent and afterwards
vulcanized to form a hard rubber coating thus rendering the article impervious to
water or other liquids.
Dated this 20 11900
FELL & JAMES,
1 Queen Victoria Street, London, E.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Hollow Pulp Ware, particularly
applicable to Buoyant Articles.
I, HENRY THAME, of 3, Wyfold Villas, Yiowsley, 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

page_text: to buoyant articles such as used for life saving purposes or for the felloes of wheels
for cycles and other vehicles, and has for its object the rendering of the article
impervious to water or other similar liqnid. The articles may be hollow in form or
may have recesses, undulations, or other external configurations.
To carry the invention into effect I take wood or other pulp carefully beaten in any
of the well known ways, and I may form the article by means of pressure in suitable
inoulds either with or without the use of a vacuum or in any well known manner or
the article may be formed direct from millboard after being soaked in water, or half
stuff or wood pulp lightly pressed from the beator engine and pressed into shape in
suitable moulds.
The articles are then dried and placed in a solution of boiled oil and rosin for
the purpose of rendering them non-absorbent and for facilitating the adhesion of the
water-proof coating hereinafter described.
The parts are afterwards jointed if made hollow in any of the well known ways and
in halves as stated in the Specification accompanying my Application for Letters
Patent No. 5603 dated March 12th 1896. The articles are next coated with a thin
solution of rubber, gutta percha or other vulcanizable gum mixed with sulphur in
suitable proportions.
When the solvent has sufficiently evaporated a thin sheet of rubber or other
vulcanizable material prepared with 40 or 50 per cent. of sulphur is applied to the
outer surface of the article which is then placed in a vulcanizing apparatus and
vulcanized in the usual way.
This transforms the thin sheet of rubber or other vulcanizable material into an
impervious coating of hard material. Or the prepared rubber or other vulcanizable
material may be applied in the form of a paint or varnish in any suitable volatile
medium or solvent and afterwards vulcanized to form a hard rubber coating thus
rendering the article impervious to water or other liquids.
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 forming a water-proofing coating
upon tho said ware substantially as described.
Dated the 2014
FELL & JAMES,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.