Improvements in and relating to the Tyres of Cycles, Carriages, Omnibuses, and other Road Vehicles.
Year: 1895

page_text: Date of Application, 19th Nov., 1895
Complete Specification Left, 17th Sept., 1896-Accepted, 19th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Tyres of Cycles, Carriages,
Omnibuses, and other Road Vehicles.
I, WILLIAM JOHN ALEXANDER DONALD, of 70 Great Clyde Street, in the
City and County of Glasgow, Managing Director of The Eglinton Chrome Tanning
Company Limited, do hereby declare the nature of my invention to be as
follows:-
This invention has reference to a material which is to be used in the construction
of the tyres of cycles, carriages and other road vehicles.
I prepare this material in the following manner-
I take ordinary animal hides and prepare them for tanning in the usual manner
by washing, soaking, liming and hairing, " bating or otherwise.
"
The hides so prepared are then placed in a solution of chromate salts until they
are thoroughly impregnated or saturated.
After leaving the last mentioned stage the hides are then put into water
containing reducing agents, such as theo-sulphate of soda, with the addition of a
sufficient quantity of sulphuric acid.
After leaving this last stage, the hides are washed and dried, and thus form the
prepared material for the purposes of this invention, and have a colour of white or
grey somewhat resembling an ordinary rubber tyre.
The prepared material would or may be further treated by impregnating or
saturating same with a solution of neutral soap, oils, grease, paraffin, indiarubber
guttapercha or the like.
Instead of using a solution of chrome salts, other mineral tanning agents may be
used, such as salts of iron, aluminium, mangauese, or barium, either alone or in
combination with chrome salts.
The prepared material would be used in a damp state or in a dried state, but
preferably the former for the purpose of forming tyres or tyre covers for cycles and
road vehicles.
The prepared material would or may have a layer or layers of sheet indiarubber
cemented on to one or both of its surfaces to give a resilient action and superior
wearing effect.
A central strip of sole or other leather, indiarubber, or other suitable material may
be laced, sewn, screwed, cemented or otherwise secured to the tyre cover on either
the outer or inner surfaces or both.
The prepared material may be used as a semi-circular tyre cover formed of an
endless band secured to the metal rim by the pressure of the inner air tube or by
ring wires or be lapped all round the air tube and secured by the pressure of the
latter or by tightened up ring wires or otherwise. While the jointing ends of the
tyre may be protected within and on the outer side of metallic U shaped clips
clenched together by rivetting.
The tyre may further be made in two or more sectional parts having rubber
blocks at the ends of the section which would be connected together by screw
threaded couplings working over screw bolts, said couplings being covered by rubber
cushions, leather or the like.
Dated 18th dor of November 1905
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to the Tyres of Cycles, Carriages,
Omnibuses, and other Road Vehicles.
I, WILLIAM JOHN ALEXANDER DONALD, of 70 Great Clyde Street in the
City and County of Glasgow, Managing Director of The Eglinton Chrome Tanning
Company Limited, do hereby declare the nature of my invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement in writing that is to say :-
This invention has reference to a material which is to be used in the construction
of the tyres of cycles, carriages and other road vehicles.
I prepare this material in the following manner:
I take ordinary animal hides and prepare them for tanning in the usual manner
by washing, soaking, liming, and hairing, "bating" or otherwise.
The hides so prepared are then placed in a solution of chromate salts the chemicals
being preferably about five per centum in relation to the weight of green hides, and
agitated until they are thoroughly impregnated or saturated.
After leaving the last mentioned stage the hides are then put into water containing
reducing agents, such as thio-sulphate of soda, with the addition of a sufficient
quantity of sulphuric or hydrochloric acid.
After leaving this last stage the hides are washed and dried off, and thus form
the prepared material for the purposes of this invention, and have a colour of white
or grey somewhat resembling an ordinary rubber tyre.
The prepared material may if desired be treated further by impregnating or
saturating same with a solution of indiarubber, guttapercha, or the like.
Instead of using a solution of chrome salts, other mineral tanning agents may be
used, such as salts of iron, aluminium, inanganese, or barium, either alone or in
combination with chrome salts.
The prepared material would be used in a dried state for the purpose of forming
tyres or tyre covers for cycles and road vehicles.
The prepared material may have a layer or layers of sheet indiarubber canvas or
the like cemented on to one or both of its surfaces.
A central strip of sole or other leather, indiarubber or other suitable material
may be laced, sewn, screwed, cemented, or otherwise secured to the tyre cover on
either the outer or inner surfaces or both.
The prepared material may be used as a semi-circular tyre cover formed of an
endless band secured to the metal rim by the pressure of the inner air tube, or by
ring wires, or be lapped all round the air tube and be secured by the pressure of
the latter or by tightened up ring wires or otherwise; or the tyre may be formed
as a single air tight tube.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
First. The herein described method of forming a specially prepared material for
use in the construction of tyres for cycles and road vehicles substantially as set
forth.
Second. A material for use in the construction of tyres for cycles and road
vehicles, prepared substantially as set forth.
Dated the 16th September 1896.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.