A New or Improved Attachment to the Rims of Wheels Intended Carry Pneumatic and like Tyres.
Year: 1891

page_text: Date of Application, 17th Nov.; 1891
Complete Specification Left, 16th Aug., 1892-Accepted, 17th Sept., 1892
PROVISIONAL SPECIFICATION.
A New or Improved Attachment to the Rims of Wheels Intended
Carry Pneumatic and like Tyres.
to
I, PRESTON DAVIES, of No. 12 Kempson Road, Walham Green, Fulham, in
the County of Middlesex, Watchmaker, do hereby declare the nature of this
invention to be as follows
--
In wheels carrying pneumatic and like tyres heretofore made considerable
damage has been caused by the metallic rims of such wheels, when weight is upon
them, bedding into and chafing the inner inflated tube of the tyre thereby tending
ultimately to puncture it. To remedy this defect is the object of my invention,
and in carrying it out I employ two tubes of india-rubber inflated with air or filled
with other Huid, held in position at the edges of the rim so that they act as a pad
or buffer between the inner inflated tube and the edges of such rim.
According to my invention the tubes are joined at their ends so as to form two
complete circles or rings but with a short connecting tube between them to enable
their being inflated or filled from one valve. To keep the two tubes at the requisite
parallel distance apart and to prevent their undue expansion under pressure of
inflation or filling, they are securely attached by vulcanizing or other suitable
means to a substance of canvas,, webbing or other suitable material thus forming a
strip or band of a width sufficient to admit of its being affixed by solutioning or
other suitable means to the rim of the wheel in such a position that the portion
between the tubes is firmly secured to the inside of the rim, the tubes being at the
edges of the rim, and the outer edges of the strip or band being turned over and
secured to the outside of the rim. The two tubes are inflated or filled to a greater
pressure than the inner inflated tube of the tyre.
قليدي
of Novomlow 1901
PRESTON DAVIES.
COMPLETE SPECIFICATION.
A New or Improved Attachment to the Rims of Wheels Intended to
Carry Pneumatic and like Tyres.
I, PRESTON DAVIES, of No. 12 Kempson Road, Walham Green, Fulham, in the
County of Middlesex, Watchmaker, 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 :-
In wheels carrying pneumatic and like tyres heretofore made considerable
damage has been caused by the edges of the metallic rims of such wheels, when
weight is upon them, bedding into and chafing the inner or inflated tube of the
tyre thereby tending ultimately to puncture it.
To remedy this defect is the object of my invention.
The annexed drawing, which gives a transverse sectional view of a rim of a
wheel, illustrates my invention.
To the rim, A, l'affix by solutioning or other suitable means an attachment or
compound band. This band contains two tubes, B, composed of india-rubber or
its equivalent which are inflated with air or filled with other fluid. They are
joined at their ends so as to form two complete circles or rings but with a short
connecting tube between them to admit of their being inflated or filled from one
valve. To keep these two tubes at the requisite parallel distance apart and to
prevent their undue expansion under pressure of inflation or filling they are securely
71

page_text: attached, by vulcanizing or other suitable means, to one or more substances of
canvas webbing or other suitable material, C, and, D, thus forming a strip or band
of a width sufficient to cover the rim as shown.
The tubes are preferably inflated or filled to a greater pressure than the main
inflated tube of the tyre.
In this way a protective cushion or buffer is formed between the inner or inflated
tube of the tyre (which may be of any suitable construction and is not shown in
the annexed drawing) and the edges of the rim, A.
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 :-
A protective cushion between the rim of a wheel and its tyre' consisting of
tubes, B, adapted to be filled under pressure from a single valve and provided with
one or more coverings, C, and, D, of canvas or other similar material secured to
the rim and serving to hold the tubes in position between the edges of the rim and
the tyre substantially as set forth and illustrated in the annexed drawing.
Dated this 16th day of August 1892.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.