Improvements in or applicable to Pneumatic Tyres for Vehicles.
Year: 1896

page_text: Date of Application, 17th Oct., 1896
Complete Specification Left, 9th July, 1897-Accepted, 28th Aug., 1897
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Pneumatic Tyres for Vehicles.
We PHILIP ARTHUR BIRLEY of Cambridge Street, Manchester, Manager, and
CHARLES MACINTOSH & Co. LIMITED, of Cambridge Street, Manchester, India
Rubber Manufacturers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in covers for pneumatic tyres such as;
described in the Specification accompanying our application for a Patent No. 9496
of A.D. 1896.
According to our present invention we build up the tyre cover in such a manner"
as that while the main part of the cover is elastic or partly elastic the edges thereof
shall be comparatively inelastic.
The tyre cover is lined with or partly composed of canvas or similar material.
cut on the bias or woven or produced in one of the various now well known ways so
as to produce a very flexible material. We place such a cover on an annular mandril
or otherwise hold it in such a position that the edges of the cover come nearest to 1
the centre of the tyre. The edges of the cover thus form a circle having a less
circumference than any other part of the tyre.
Along such edges we attach by solutioning sewing or otherwise a strip of canvas
or similar fabric cut or woven with the warp and weft threads on the straight. This
strip is applied so that the warp and weft threads lie parallel to and at right angles
to the circumference of the tyre.
Such an edging being comparatively inelastic in the direction of its length as
compared with the other material of which the tyre is composed will not merely
strengthen the edges of the outer cover but will help the layers of the cover to
assume their proper coiled position and to preserve it when inflated.
In applying the strips to the cover we prefer that the latter should be turned
inside out.
Instead of a lining such as herein described made up of woven fabric cut on the
cross and of straight strips attached thereto we may apply to such tyres a lining
of woven fabric in which the edges or selvedges are woven close while the intervening
portion is left open or loosely woven.
Dated this 14th day of October 1896.
E. T. WHITELOW, A. M. Inst. C.E.,
70 Deansgate, Manchester, Agent for the Applicants.
Improvements in or applicable to Pneumatic Tyres for Vehicles.
We PHILIP ARTHUR BIRLEY of Cambridge Street, Manchester, Manager, and
CHARLES MACINTOSH & Co. LIMITED of Cambridge Street, Manchester, India
[Price 8d.]

page_text: Rubber Manufacturers, 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 improvements in covers for pneumatic tyres such as
described in the Specification accompanying our application for a Patent No. 9496
of A.D. 1896.
According to our present invention we build up the tyre cover in such a manner as
that while the main part of the cover is elastic or partly elastic the edges thereof shall
be comparatively inelastic.
The tyre cover is lined with or partly composed of canvas or similar material
cut on the bias or woven or produced in one of the various now well known ways so
as to produce a very flexible material which is substantially of equal elasticity in all
directions. We place such a cover on an annular mandril or otherwise hold it in
such a position that the edges of the cover come nearest to the centre of the tyre.
The edges of the cover thus form a circle having a less circumference than any
other part of the tyre.
Along such edges we attach by solutioning sewing or otherwise a strip of canvas
or similar fabric cut or woven with the warp and weft threads on the straight. This
strip is applied so that the warp and weft threads lie parallel to and at right angles
to the circumference of the tyre.
Such an edging being comparatively inelastic in the direction of its length as
compared with the other material of which the tyre is composed will not merely
strengthen the edges of the outer cover but will help the layers of the cover to
assume their proper coiled position and to preserve it when inflated.
In the accompanying drawing which represents a cross section of a tyre cover
being made in accordance with our said invention a is the foundation lining or basis
of textile fabric to which an outer facing of rubber is applied as usual. b is a
mandril which may be telescopic or have loose or detachable sections to enable the
tyre cover to be removed after being built up in the manner described. c c' are the
strips of straight canvas which are preferably solutioned or cemented to the edges. They
may however be secured by sewing or otherwise. The total width of the tyre cover
from c to c¹ measured round the mandril is such as that the complete tyre cover
will embrace the inflating tube and overlap to such extent as may be desired.
In applying the strips to the cover we prefer that the latter should be turned
inside out.
We are aware that telescopic sectional and other such mandrils as well as tyre
covers having margins of less length than the rest of the cover are matters of
common knowledge and we wish it to be understood that we make no general claim
to such but
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is
An overlapping tyre cover having a lining possessing substantially equal elasticity
in all directions in combination with marginal strips (of less circumferential length
than the remaining portion of the tyre) consisting of canvas or the like material the
warp and weft threads of which run parallel to and at right angles to the
circumference of the tyre substantially as set forth.
Dated this 5th day of July 1897.
E. T. WHITELOW, A. M. Inst. C.E.,
70 Deansgate, Manchester, Agent for the Applicants.