Improvements relating to Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 27th Nov., 1893
Complete Specification Left, 27th Sept., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements relating to Pneumatic Tyres.
I JOSEPHINE MARY PLUNKETT of 26 Upper Fitzwilliam Street Dublin
(Married) do hereby declare the nature of this invention to be as follows:-
According to this invention I form the pneumatic tyre of a number of balls of
india rubber similar to that used for footballs and having a short tube attached
thereto.
These tubes are passed through holes in the rims the said holes being first
provided with metal eyelets or are otherwise provided or formed so as to prevent
the cutting of the tube.
The balls may also be provided with close fitting covers made of leather or
other suitable material and may be fitted with valves of any suitable kind say a
metal tubular valve which will pass through the rim to receive a nut and thus
serve to secure the ball to the rim.
The rim itself may be flat or any other convenient shape and when flat the
pneumatic balls may be kept in position by means of a wire guard.
Dated this 27th day of November 1893.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Pneumatic Tyres.
I JOSEPHINE MARY PLUNKETT of 26 Upper Fitzwilliam Street, Dublin,
Married, 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 a pneumatic tyre for vehicles, the
puncturing of any portion of which will not render the whole tyre useless; and for
the purposes of this invention I employ a number of india rubber balls to constitute
the pneumatic tyre, the invention consisting in the means whereby the balls are
secured to the tyre.
In carrying out this invention, 1 may form the balls in any convenient manner,
say, for example, similar in make to an ordinary football, only of a size suitable for
the purpose in view. The balls may be uncovered, or each ball may be provided
with a close-fitting cover of leather or other suitable material; or a single cover
common to all the balls may be used.
The balls are each attached to a metal tube in which is a valve of
any suitable
form, the tube being formed with a disc head or washer, which is placed inside the
ball. The tube is threaded for the whole of its length to receive nuts, one of
which is screwed down on to the disc or washer, so as to clip the edges of the
opening in the ball between them. The tube is then passed through a hole in
the rim, and is secured in position by a second nut, which is screwed down onto the
rim, thus drawing the tube up, and nipping it firmly between the two nuts.
•
In the accompanying drawing I have shewu the means by which I effect my
purposes.
C is the
A is the ball and B the rim, which may be of any ordinary section.
tube, and D the disc head or washer. E is the first nut, which holds the ball to

page_text: the washer, and F is the second nut, which secures the ball to the rim by the tube.
Should a ball want re-inflating, a pump is attached to the tube, and the ball is
re-inflated. Should a ball become cut, it will be easy to remove it and replace it
by a perfect ball.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, declare that what I
clain is :-
Securing india rubber balls (forming a pneumatic tyre) to the rim of the wlieel
substantially as herein shown and described.
n
1
1
1001
NEWTON & SON,
Agents for the Applicant.