Improvements in Pneumatic Tyres for Wheels.
Year: 1894

page_text: Date of Application, 30th June, 1894
Complete Specification Left, 15th Sept., 1894-Accepted, 24th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres for Wheels.
We, JOHN MORRIS, of Cleddesden, near Basingstoke, Hampshire, Manufacturing
Chemist, ARTHUR CLARKE of 5 Richmond Road, Basingstoke aforesaid, Engineer,
and SAMUEL ANDREWS, of Wote Street Basingstoke aforesaid, Licentiate Royal
College of Physicians, London, do hereby declare the nature of this invention to be
as follows:-
The chief feature of our invention is the combination with an inflatable tube of
a number of elastic balls loosely packed, so as to allow free movement among
themselves, and placed between the aforesaid inflatable tube and that part of the
cover which comes in contact with the ground. The said elastic balls being on the
outside of the air-tube, serve to protect the same from puncture and afford
additional elasticity to the tyre. The balls may be unconfined but preferably they
are contained in a chamber formed by dividing off a portion of the ordinary outer
cover by means of a thin elastic diaphragm; according to a modification we insert
the balls in an additional elastic tube.
The balls which are preferably about the size of ordinary marbles are made of
rubber or similar elastic material. They are preferably made hollow and filled with
air at or above atmospheric pressure. The outer cover of the tyre is fixed to the
rim in any usual or convenient manner.
Our improved tyres afford practical immunity from puncture, increased durability
as compared with other pneumatic tyres, and increased pace and facility for climbing
hills.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tyres for Wheels.
We, JOHN MORRIS, of Cliddesden, near Basingstoke, Hampshire, Manufacturing
Chemist, ARTHUR CLARKE of 5 Richmond Road, Basingstoke aforesaid, Engineer,
and SAMUEL ANDREWS of Wote Street, Basingstoke aforesaid, Licentiate Royal
College of Physicians, London, 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 pneumatic tyres for wheels.
The said invention consists in the combination, with an outer cover, of an
inflatable tube, and a large number of elastic balls, packed in such a manner as to
allow of movement among themselves, and placed between the said inflatable tube
and that part of the cover which comes in contact with the ground. The said balls
are contained in a tube or in a chamber formed by a diaphragm attached to the
interior surface of the cover.
In the accompanying drawings we have shown sections of tyres constructed
according to our invention.
Figure 1 indicates a small tubular tyre deflated, the balls being enclosed in a
separate envelope.
[Price Q77

page_text: Figure 2 indicates a tyre having a removable cover, the air-tube being shown
deflated.
Figure 3 represents a tyre similar to that shown by Figure 2 with the exception
that the balls are confined in a chamber formed by a diaphragm attached to the
inner sides of the outer cover.
A is the outer cover, B is the inflatable tube, C, C are the small elastic balls
which are made hollow and filled with air at or above atmospheric pressure. The
said balls are contained in a confining elastic tube D, Figures 1 and 2, or in a
chamber formed by dividing off a portion of the outer cover A by means of a
thin elastic diaphragm E as shown in Figure 3.
The balls C, C which may be made of rubber or other elastic material are
preferably about the size of marbles. The outer cover of the tyre is made in any
convenient form and may be affixed to the rim in any usual or convenient manner.
Figure 1 shows a plain tubular cover in which the inflatable tube and the
ball-containing tube are placed prior to joining the ends of the cover to form the
tyre. The inflatable tube is furnished with an inflating valve such as is used in
pneumatic tyres heretofore made. When air is pumped into the tube, the latter
expands and presses against the tube D or diaphragm E as the case may be and
compresses said tube and the balls into smaller space. The pressure within the tube
which contains the balls will be substantially the same as that in the inflatable
tube.
Our improved tyres afford practical immunity from puncture, increased durability
as compared with other pneumatic tyres, increased pace and facility for hill climbing,
and immunity from side-slip.
The tyre can be used uninflated, in which case the balls alone are relied upon for
ensuring the necessary cushion.
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 :-
.
In a pneumatic tyre, the combination, with the outer cover, of an inflatable tube,
and hollow elastic balls free to move upon themselves and packed between said
inflatable tube and the cover in a second tube or in a chamber formed by a
diaphragm attached to the interior surface of the outer cover, substantially as, and
for the purposes, specified.
Dated this 14th day of September 1894
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.