THE MANUFACTURE OF IMPROVED PLASTIC COMPOUNDS to be as follows:
Year: 1885

page_text: I RICHARD EDWARD GOOLDEN of 8 Hanover Square in the county of Middle-
sex, Gentleman do hereby declare the nature of my said invention for "THE
MANUFACTURE OF IMPROVED PLASTIC COMPOUNDS to be as follows:-
”
This invention relates to the manufacture of improved plastic compounds which
form cheap and efficient insulating material suitable for galvanic batteries and
other electrical purposes and which will also resist the action of alkalies and
acids. The improved plastic compounds are also suitable for the manufacture of
various articles.
In manufacturing the improved compounds I mix and combine by heat gum
damar, gum kauri, gutta percha and asbestos or other suitable pigment the propor-
tions of the ingredients varying according to the compound to be produced.
Either the gum kauri or the gutta percha or both may be omitted when a
cheaper and not so tough a material is required.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: The manufacture of improved Plastic Compounds.
I RICHARD EDWARD GOOLDEN, of 8 Hanover Square in the county of Middle-
sex, Gentleman 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 improved plastic compounds which
form cheap and efficient insulating material suitable for galvanic batteries and
other electrical purposes and which will also resist the action of alkalies and acids.
The improved plastic compounds are also suitable for the manufacture of various
articles.
In manufacturing the improved compounds I mix and combine by heat gum
damar, gum kauri, gutta percha and asbestos or other suitable pigment the propor-
tions of the ingredients varying according to the compound to be produced.
Either the gum kauri or the gutta percha or both may be omitted when a cheaper
and not so tough a material is required; in this case a certain proportion of ozokerit
is added.
In manufacturing a compound suitable for an insulating material I employ the
ingredients in about the following proportions that is to say:
About five pounds of gum damar.
About five pounds of gum kauri.
About one to two pounds of gutta percha and
About fourteen pounds of asbestos or other suitable pigment.
The above ingredients are thoroughly heated and mixed in any well known
manner and moulded under pressure into the shape required.
In manufacturing a compound specially suited for the manufacture of electric
batteries, I omit the gum kauri and gutter percha and employ in place thereof
ozokerit in which case I find the following proportions to give good results
videlicet.
About twelve pounds of gum damar.
About twenty pounds of ozokerit, and
Aout fourteen pounds of asbestos.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
The manufacture and use of the improved plastic compounds formed by mixing
and combining the ingredients herein mentioned substantially as described.