An Improved Mode of Securing Elastic Tyres on the Rims of Velocipede and other Wheels.
Year: 1892

page_text: Date of Application, 5th May, 1892
Complete Specification Left, 2nd Feb., 1893-Accepted, 4th Mar., 1893
PROVISIONAL SPECIFICATION.
An Improved Mode of Securing Elastic Tyres on the Rims of
Velocipede and other Wheels.
I, CHRISTIAN HAMILTON GRAY of Silvertown, in the County of Essex, Engineer,
do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide an efficient means for securing elustic
tyres to the rims of wheels, and thereby to avoid the creeping to which such tyres
are now liable.
To this end, in the manufacture of the tyre, I coat that part of the tyre which is
to be seated on or in the rim, with a strip of woven or knitted fabric; preferably a
fleecy or napped fabric of cotton, such as that known as swan's down.
This fabric I secure by cement to the tyre before vulcanization, and in attaching
the tyre to the wheel rim, I apply cement to the napped surface.
In some cases, I propose to prepare the rim for the reception of the tyre, by
attaching to the rim, by cement, a strip of fabric of the like character to that
applied to the tyre, and to connect, by cement, the tyre to this bed or lining of the
rim, after the ordinary manner of securing tyres in place.
By this means, a firm adhesion of the tyre to its seat is maintained, the tendency
of the tyre to creep on the metal face of the rim being removed by the interposition
of the woven or knitted fabric.
Dated this 5th day of May 180
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Mode of Securing Elastic Tyres on the Rims of
Velocipede and other Wheels.
I CHRISTIAN HAMILTON GRAY of Silvertown in the County of Essex,
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 :-
The object of this invention is to provide an efficient means for securing elastic
tyres to the rims of wheels, and thereby to avoid the "creeping" to which such
tyres are now liable.
To this end, in the manufacture of the tyre, prior to joining up the ends thereof,
I coat that part of the tyre which is to be seated on or in the rim with a strip of
woven or knitted fabric, preferably a fleecy or napped fabric of cotton, such as
that known as "swan's down."
This fabric I secure by cement to the tyre before vulcanization, the napped
surface being outwards; my object being to interpose between the rubber tyre and
the metal rim, a material which will present an absorbent surface for the adhesive
cement used in attaching the tyre to the wheel rim.
The invention applies to solid rubber tyres, and also to hollow tyres, whether of
cylindrical form in cross section, or other sectional form having a broad base.
In the accompanying drawing I have shown the application of the invention, in
two forms, to a wheel rim.
Fig. 1 represents the improved tyre in direct contact with the rim, and Fig. 2.
shews the wheel rim covered with a band of woven or knitted fabric upon which the
tyre is to bed.

page_text: In Fig. 1, a is the strip of woven or knitted fabric, which is applied to the tyre by
means of rubber cement, preparatory to the vulcanising process, the fleecy or napped
surface (saturated with adhesive cement) being brought into contact with the rim
of the wheel to which the tyre is to be applied. The advantage of this fleecy
surface is, that it will absorb or take up a good supply of cement, and thus secure
firm contact with the wheel rim.
In place of fixing the improved tyre directly to the wheel rim, I propose, in some
cases, to prepare the rim, as shewn at Fig. 2, for the reception of the tyre, by
attaching to the rim, by cement, a strip of fabric of like character to the strip a
applied to the tyre, placing the napped surface (saturated with cement) in contact
with the wheel rim. To this bed or covering of the rim, I attach the tyre after the
ordinary manner of securing tyres in place. By the means described with reference
to Fig. 1, as well as the modification described with reference to Fig. 2, a firm
adhesion of the tyre to its seat is maintained, the tendency of the tyre to creep
on the metal face of the rim being removed by the interposition of the woven or
knitted fabric a, with or without the fabric b.
6:
"
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
As an improved mode of securing elastic tyres on the rims of velocipede and.
other wheels, the use of a strip or strips of a cement-absorbing, fabric interposed.
between the elastic tyre and the wheel rim, in the manner and for the purpose
above set forth.
1000