Improvements in Pneumatic Tyres and Wheels.
Year: 1895

page_text: Date of Application, 19th Dec., 1895
Complete Specification Left, 18th Sept., 1896-Accepted, 31st Oct., 1896
Improvements in Pneumatic Tyres and Wheels.
THOMAS LOCKWOOD Engineer WILLIAM HENRY HANSON Engineer 208 High
Street Poplar, E. do hereby declare the nature of this invention to be as
follows:-
Our invention relates to au improvement in pneumatic tyres and wheels and
more particularly to the construction of the rim which supports the pneumatic
tyre.
To this end we make our rim of rolled steel or other suitable metal and form
it of a triangular shape with the top edges separated and turned back to support
the tyre. The circular form of the wheel rim would represent a channel with
the top edges closer together than the width of the base and rounded out to suit the
diameter of the tyre to be used. This triangular shaped rim may be rounded or
have sharp corners to suit the purpose which is described.
It has been customary heretofore to use inner tubes for inflating pneumatic tyres.
In our invention and in use with our rim described we do not use an inner air
tube. Upon inflation the two edges of the flexible cover which is made of suitable
canvas and rubber and is formed or shaped thicker at these edges is pressed up
into the rim and forms an air tight junction. Upon the inside and base of the rim
we insert a rubber tube connected to the outside by a valve and on the inside an
auxiliary valve is so arranged to pass between the two edges of the flexible cover.
This tube when inflated presses the ends of the wedge shaped or thickened cover
and forces them towards the open part of mouth of the rim and makes an air
tight joint. In place of this tube we may use a steel band or spring with the
valve fixed thereto and projecting into the tyre through the edges described.
In connection with our rim.we use in place of ordinary nipples a method of
passing the wire spokes through the rim from one hole to the other and so out
and joint the wire with a connector having a right and left thread.
To prevent puncture we lay on the inside of the tyre a loose strip of rubber
suitably shaped at the edges and secured at intervals to retain its place.
Dated this 18th day of December 1895.
T. LOCKWOOD.
W. H. HANSON.
Improvements in Pneumatic Tyres and wheels.
THOMAS LOCKWOOD Engineer WILLIAM HENRY HANSON Engineer 208 High
Street Poplar E. 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 more particularly to the form of rim which supports the
pneumatic tyre. To this end we make the rim of rolled steel or other suitable
metal and form it of a triangular shape with the top edges separated and turned
I Price 8d 1

page_text: back to support the tyre. This triangular shaped rim may be rounded or have
sharp corners as desired. We do not use a separate inner tube for inflation but
instead we line the canvas cover with rubber the two edges or ends being thickened
to obtain an air tight joint when pressed from the inside of the rim. Upon "the
inside and base of the rim we insert a rubber tube which when inflated presses
the thickened edges of the tyres together and renders it air tight. The valve
can either be arranged to pass immediately between the edges of the tyre or fixed
from the outside of the rim. In place of this tube for pressing the edges together
we may use a steel band or spring so that by expanding this a like result is
obtained. In connection with our rim we use spokes without ordinary nipples by
passing the wires through one hole and out the other, jointing the spokes with a
connector having right and left threads.
To guard against punctures we lay a loose strip of rubber on the inside of the
tyre, secured at intervals to keep it in place. Should a puncture occur the air
pressure inside would press this loose rubber over the hole and close it up.
In the annexed drawings Figs. 1 and 2 are cross sections of rim and tyre.
Fig. 3. is a section through circumference of rim "E" and shows method of
arranging spokes "S."
In Fig. 1. "C" is the outer cover. "A" canvas with rubber lining "B."
"H" is the thickened edges of canvas and rubber. "E" shows the rim and
"D" the tube for inflating-in Fig. 2. "K" shows the steel band or spring-
other letters corresponding to Fig. 1.
Having now particularly described the nature of our invention and in what
manner the same is to be performed we declare that what we claim is
1. The use of a tube or steel band or spring to press against the thickened
edges of the tyre substantially as illustrated and described.
2. The method of using or fitting the spokes as illustrated and described.
3. The shape or form of the rolled rim for the purposes required substantially
as described.
Dated this 18th day of September 1896.