Improvements in or connected with Self-healing Pneumatic Tyres.
Year: 1899

page_text: Date of Application, 22nd Nov., 1899
Complete Snanifiration Loit 10th An 1000
Ancented 10th May 1000
PROVISIONAL SPECIFICATION.
Improvements in or connected with Self-healing Pneumatic Tyres.
I, EDWARD ARTHUR, of 4, Church Road, West Drayton, in the County of
Middlesex, Gentleman, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in or connected with self-healing
pneumatic tyres, and consists in providing a composition which can be readily
applied to the inner tubes of cycle and other tyres, either during the process of
manufacture or subsequently thereto, for the purpose of rendering such inner
tubes self-healing in the event of them becoming punctured.
In carrying my invention into practical effect, I thoroughly dissolve a quantity
of raw rubber in benzine or naptha, and add thereto coal tar or Stockhome or
Archangel tar or pitch softened by mineral oil, in or about the proportion of two
parts of the said coal tar to one part of solid rubber.
The benzine or naptha is subsequently evaporated until the desired consistency
of the composition is arrived at, when the latter will then be ready for use.
I preferably apply the composition to the inner tubes of the tyres, by cutting,
stamping, moulding or otherwise forming the composition into strips of suitable
size, which are then fixed with the aid of suitable solution or otherwise, to the
outer surface of the inner tube of the tyre, or to the inside of the outer casing of
the tyre, such strips being further held in place by means of an india-rubber
cover placed over the said inner tube and the composition strips.
The strips of composition prepared in the foregoing manner, may be applied
to the inner tubes during any stage of their manufacture, or such strips may
conveniently be applied to the tyre tubes subsequently thereto, and after such
tubes have been in use.
Improvements in or connected with Self-healing Pneumatic Tyres.
I, EDWARD ARTHUR, of 4, Church Road, West Drayton, in the County of
Middlesex, Gentleman, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to improvements in, or connected with, self-healing
pneumatic tyres, and has for its object to provide a composition or material which
can be readily applied to the inner tubes of pneumatic tyres for cycle and other

page_text: vehicles, either during the process of manufacture or subsequently thereto, for
the purpose of rendering such tyres or inner tubes self-healing in the event of
their becoming punctured or can be applied to the outer cover for the same
purpose.
Although my invention is primarily intended for application to the inner
tubes of pneumatic tyres having an inner tube and an outer cover yet it may
advantageously be applied to pneumatic tyres of the single tube class, for the
purpose of rendering them self-healing when punctured.
In accordance with this my said invention, thoroughly dissolve a quantity
of raw india-rubber in benzine or naptha, and add thereto coal tar, or Stockholm
or Archangel tar, or pitch softened by mineral oil, in or about the proportion of
two parts of the said coal tar to one part of solid rubber, after which the benzine
or naptha in which the rubber has been dissolved, is allowed to evaporate until
the desired consistency of the composition is arrived at, whereupon the latter
will then be ready for use.
I preferably apply the composition or material, produced in the foregoing
manner, by cutting, pressing, stamping, moulding or otherwise fashioning the
said composition or material into strips of suitable dimensions, which strips are
then fixed, by means of suitable solution or its equivalent, to that portion of the
inner tube of the pneumatic tyre, which when inflated and in position lies nearest
to the tread of the tyre and either on the inside or the outside of the inner tube
or to the inside of the outer casing of the tyre, such strips being further held
in place upon the inner tube of the tyre or the outer casing as the case may be
by means of a cover of india-rubber or some suitable textile fabric placed over the
strips of composition or material aforesaid and attached to the inner tube or
outer casing as the case may be by solution or other suitable means.
The strips of composition or material prepared in the manner hereinbefore
specified, may either be applied to the inner tube or outer cover of the tyre
during any suitable stage of manufacture, or such strips may conveniently be
applied to the outside of the inner tube or the inside of the outer cover of the
tyre in their finished state, and either before they have been in use or subse-
quently thereto.
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:
.
こ
The improvements in, or connected with, self-healing pneumatic tyres, con-
sisting in the composition of a material for rendering such tyres self-healing in
the event of puncture, said material being produced by dissolving raw rubber
in benzine or naptha and adding thereto either coal tar or Stockholm or Arch-
angel tar, or pitch softened by mineral oil, in or about the proportions herein-
before stated, the said benzine or naptha being subsequently evaporated until
the composition reaches a desired consistency and the use thereof all substantially
as specified.
Total 4 10+1.
A 1000
HUGHES & YOUNG,
55 & 56, Chancery Lane, London, W.C., Agents.