Improved Means for Holding Pneumatic Tyres onto Rims of Wheels.
Year: 1897

page_text: Date of Application, 3rd Apr., 1897
Loft 3rd lon 1808 Accented 12th Mar.. 1898
PROVISIONAL SPECIFICATION.
Improved Means for Holding Pneumatic Tyres onto Rims of Wheels.
I, ROBERT FINLAYSON CHISHOLM, of 23, Stretton Road, Aston, near Birmingham,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention consists in applying to each side of the outer covering of pneu-
matic tyres metal weldless chains using by preference chains in which each link
is formed into two loops by twisting the metal so that the ends are brought round
and folded over reverse ways to grip the crossing portion between the two loops of
each link.
1
The chains are fixed in between the canvas of the covering and when applied to
the rim of a wheel lie in concave edges of the rim that is to say rims having their
edges turned inwards so that when the inner chamber or tube is on the rim of
the wheel & inflated the chains in the outer cover hold it firmly in position.
D
thin Ond day of Anril 1897
HENRY F. TALBOT,
7, Cherry Street, Birmingham, Agent for the Applicant.
Improved Means for Holding Pneumatic Tyers on to Kims of wheels.
I, ROBERT FINLAYSON CHISHOLM, of 23, Stretton Road, Aston, near Birmingham,
Manufacturer, 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:-
-
Reference being had to the accompanying drawings.
This invention consists in applying to each side of the outer covering of pneu-
matic tyres metal weldless chains, using by preference chains in which each link
is formed into two loops by twisting the metal so that the ends are brought round
and folded over reverse ways to grip the crossing portion between the two loops of
each link. My object in the use of weldless chains is that I thereby obtain a
greater strength and security, and at a less cost that in the use of ordinary welded
chains. And the special advantage in the form of chain I have described, is that
the greater the tension on the chain the firmer the folds of the links bind together.
The chains are fixed in between the canvas of the covering and when applied to
the rim of a wheel lie in concave edges of the rim, that is to say, rims having their
edges turned inwards, so that, when the inner chamber or tube is on the rim of a
wheel and inflated the chains in the outer cover hold it firmly in position.
Referring to the accompanying sheet of drawings.

page_text: Fig. 1 is an enlarged view of one of the links of the form of weldless chain which
I prefer to use.
Fig. 2 is a slightly enlarged sectional view of an inflated tyre held in the rim as
described.
And Fig. 3 is a short length of same in elevation.
AA Fig. 1 are the two loops of the links of the chain formed by twisting the
two ends BB of the metal so as to fold over and grip the reverse way to each other
the centre portion C. The chains A¹ Figs. 2 and 3 are fixed between the two folds
of canvas D at D' which canvas forms the lining to the outer case or covering E.
The chains thus encased in the canvas being placed in the concave edges F of the
rim F of the wheel will be held securely therein, when the inner tube G is inflated,
and thus securely hold the tyre onto the rim as shewn in Fig. 2.
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:-
-
(1) The use of weldless chains for holding pneumatic tyres onto the rims of
wheels.
(2) The use of chains with links constructed substantially as described and
illustrated for the purpose of holding pneumatic tyres onto the rims of wheels.
Dated this 31st day of December 1897.
HENRY F. TALBOT,
7, Cherry Street, Birmingham, Agent for the Applicant.