Improvements in Insulation of Wire for Electrical Purposes.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Insulation of Wire for Electrical Purposes.
I, CHARLES EDWARD HEARSON, of No. 5, Templar Street, Camberwell, in the
County of Surrey, Engineer, do hereby declare the nature of this invention
to be as follows:
My invention relates to insulation of wire for electrical purposes and consists
in the production of an insulating coating on wire by applying thereto xylonite
or celluloid or other analogous compound either alone or in admixture with cobalt
blue or such other suitable colouring matter in the form of powder or in other
convenient form as in the dry state is a sufficiently imperfect conductor of
electricity. Where reduction of consistence of the insulating material selected
for use according to my invention is necessary or desirable for admitting of or
facilitating application to the wire I dissolve such material in acetone or other
suitable solvent.
I effect the coating of wire according to my invention and regulate the thick-
ness of the coating by any convenient means as for instance by passing the wire
through a bath of the insulating matter or mixture and afterwards through a
die of suitable size.
1000
Improvements in Insulation of Wire for Electrical Purposes.
I, CHARLES EDWARD HEARSON, of No. 5, Templar Street, Camberwell, in the
County of Surrey, 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:
-
My invention relates to insulation of wire for electrical purposes and consists
in the production of an insulating coating on wire by applying thereto xylonite
or celluloid or other analogous compound such as pyroxylin either alone or in
admixture with cobalt blue or such other suitable colouring matter in the form
of powder or in other convenient form as in the dry state is a sufficiently imper-
fect conductor of electricity. Where reduction of consistence of the insulating
material selected for use according to my invention is necessary or desirable for
017

page_text: admitting of or facilitating application to the wire I dissolve such material in
acetone or other suitable solvent.
I effect the coating of wire according to my invention and regulate the thick-
ness of the coating by any convenient means as for instance by passing the wire
through a bath of the insulating matter or mixture and afterwards through a
die of suitable size.
The wire may be guided through the bath by means of rollers mounted in
suitable positions relatively thereto and arrangements may be made by which
after the wire has passed through the die it will be carried or caused to travel
free of contact with any support to such a distance that while the wire is so
travelling the insulating coating will become by evaporation sufficiently dry or
hard to permit of the coated wire being then coiled on a spool without risk of
cohesion of the coating matter on the several coils.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:
:-
The insulation of wire for electrical purposes by coating it with a solution of
xylonite or celluloid or other analogous compound such as pyroxylin either alone
or in admixture with cobalt blue or such other colouring matter in the form of
powder or in other convenient form as in the dry state is a sufficiently imperfect
conductor of electricity.
Dotad this Twonty thind dore of Navambar 1808