Improvements in Tyres for Cycles and other Vehicles.
Year: 1891

page_text: Date of Application, 5th Dec., 1891
Complete Specification Left, 5th Sept., 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Tyres for Cycles and other Vehicles.
JOHN MACKENZIE, Egglescliffe Yarm-on-Tees, Durham, Engineer, and
WILLIAM MINTO, Stockton-on-Tees, Durham Cycle Agent and Manufacturer, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in tyres for cycles and other vehicles, and
when applied to pneumatic tyres prevents the tyre from becoming useless after
has been punctured, and will enable the rider to complete his journey without the
trouble attending a puncture in the pneumatic tyre as hitherto used. When used
as an improved cushion tyre this invention provides a tyre that is nearly or quite
as elastic as a pneumatic tyre without the attendant risks, and inconveniences
appertaining to pneumatic tyres.
As applied to pneumatic tyres our invention consists in filling the inner or air
tube with curled horse, or other hair such as is used in upholstery, or other similar
material, so that when the tyre is perfect and blown up to the proper pressure, the
horse hair or other similar material does not take any of the weight but so soon as
the tyre is punctured, or the air is allowed to escape, the horse hair or other similar
material will come into action and act as a cushion.
In applying our invention to a cushion tyre we dispense with the inner air tube
of the pneumatic and fill the outer covering of the tyre with horse hair or other
like material sufficiently to give the required support and elasticity. An inner tube
or covering of canvas or similar material may be used to contain the horse hair, or
other like material, independently of the outer covering, or if desired, steel, or other
springs may be used in conjunction with the horse hair or other similar material to
increase the elasticity of the tyre.
Dated this 4th dox of December 1001
JOHN MACKENZIE.
WILLIAM MINTO.
COMPLETE SPECIFICATION.
Improvements in Tyres for Cycles and other Vehicles.
We JOHN MACKENZIE of Egglescliffe, Yarm-on-Tees, in the County of Durham,
Engineer, and WILLIAM MINTO of Stockton-on-Tees, in the County of Durham,
Cycle Agent, 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 :-
Our invention relates to improvements in tyres for velocipedes and other vehicles
and when applied to pneumatic or air inflated tyres has for its object, preventing
the tyre from becoming useless after the air tube has been punctured, or the air has
escaped therefrom from any other cause, and when used without air under compres-
sion it acts as a cushion tyre being nearly as elastic as a pneumatic or air inflated
tyre. Our invention consists in forming a tube of rubber, canvas or a combination
of both these materials, and forming a web of rubber or the like or an equivalent
device connecting the two inner sides of the said tube together. The two semi-
circular or approximately semi-circular spaces thus formed are filled with horse-
hair or suitable material of a like nature, and is then either filled with air under
pressure or not, according to the type of tyre which it is desired to make.

page_text: We will now more particularly describe our invention making reference to the
accompanying sheet of drawings on which :-
Figure 1 is a cross section of a cushion tyre constructed according to our inven-
tion, showing also the rim, and Figure 2 is a cross section of a pneumatic or air
inflated tyre, also showing the rim.
Throughout these views similar parts are marked with like letters of reference.
Referring to Figure 1, A designates the tube of rubber, canvas, or a combination
of both, having a web B of rubber or the like connecting the two walls or sides of the
tube together, its object being to act as a spring in bringing the tyre back to its normal
shape after compression. This web B may be made in one with the tube A or
made as we prefer to make it, as shown on the drawing, of a separate strip of
rubber or the like and held in position by means of an inner lining of canvas C
vulcanized thereto and to the inner walls or sides of the tube A.
The spaces between the tube A and the web B are filled with curled horse-hair
or the like material D, and in the case of a pneumatic or air inflated tyre as shown
in Figure 2 we prefer to form two separate air tubes E, E, for containing the
air under pressure within the aforementioned spaces, in this case it will be seen
these said air tubes E, E, are filled with curled horse-hair or the like. In this
case I may also sometimes dispense with the web B and as a substitute therefor
vulcanize the flat sides of the air tubes E, E, together.
We prefer to connect these two air tubes E, E, in one or more places in any
suitable way, so that one valve may be used for inflating them, and also to main-
tain an equal pressure in both.
It will thus be seen that should either of these air tubes become punctured or
the air escape through any other cause, the tyre will then cease to act as a
pneumatic or air inflated tyre and will then become and act as a cushion tyre, as
shown in Figure 1.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A cushion tyre constructed as hereinbefore described and illustrated in Figure 1
of the accompanying drawing.
2. A pneumatic or air inflated tyre constructed as herein before described and
illustrated in Figure 2 of the accompanying drawing.
3. A tyre for velocipedes or other vehicles consisting of a tube of rubber or other
suitable material, with or without an interior web or equivalent device connecting
the sides of the said tube together, filled with horse-hair or the like, and also
containing air under pressure or not, substantially as described and shown.
Dated this 5th day of September 1892.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.