Improved Pneumatic Tyre.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improved Pneumatic Tyre.
EDWARD MARTIN, of 20, Devonshire Street, London, W.C., Mechanic,
do hereby declare the nature of this invention to be as follows:-
'
This invention has reference to an improved pneumatic tyre the object of same
being to provide a means whereby an ordinary cab, bus or other road wheel may
be easily and efficiently converted into a pneumatic tyred wheel at a small cost,
and the wheel when so connected shall contain all the advantages of an ordinary
pneumatic tyre or pneumatic wheel.
In carrying my invention into practice I provide a ring or band of india-
rubber or other suitable material preferably of a U section which I fit to the
wooden felloe or rim of the wheel in such a manner that the outer edge of felloe
or rim of the wheel is brought inside the open portion of U section. The rounded
portion of the U section of rubber thus forming the periphery of the wheel
which is presented to the surface of the ground. On either side of the felloe or
rim of the said wheel I provide an annular disc of steel or other suitable material
which when screwed up by bolts or other suitable means at frequent intervals
brings the rubber in close contact with the said felloe or rim thereby making
an air tight joint which may be "solutioned" on before tightening the discs as
an additional precaution against the possibility of leakage.
An annular "bead" may be turned on either side of the felloe or rim which
would imbed itself into the rubber upon the disc being screwed up, and thereby
effectually securing the rubber against slip or creep.
If. desirable an inner air tube may be used in connection with my invention.
Dated this 11th day of January 1898.
EDWARD MARTIN, of 20, Devonshire Street, London, W.C., Mechanic,
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:-
This invention has reference to an improved pneumatic tyre the object of same
being to provide a means whereby an ordinary cab, bus or other road wheel may
be easily & efficiently converted into a pneumatic tyred wheel at a small cost,
Price 871

page_text: & the wheel when so converted shall contain all the advantages of an ordinary
pneumatic tyre or pneumatic wheel-as shown in the accompanying drawing.
In carrying my invention into practice I provide a ring or band of india-
rubber or other suitable material A such as prepared rubber canvas as shewn
by dotted section in the drawings & preferably of a U section which I fit to
the wooden felloe or rim B of the wheel in such a manner that the outer edge C
of the felloe or rim B of the wheel is brought inside the open portion of the
U section. The tyre must project on each side of the rim as shewn in the
accompanying drawings at D the said tyre also being slightly rounded off for
the purpose of imbedding itself in the rubber.
The rounded portion of the U section of rubber thus forms the periphery of
the wheel which is presented to the surface of the ground. On either side of
the felloe or rim of the said wheel provide an annular disc of steel or other
suitable material E which when screwed up by bolts F or other suitable means
at frequent intervals brings the said rubber in close contact with the said felloe
or rin thereby making an air-tight joint.
on
Annular beads G are provided on the inner surface of the said disc or flange
for the purpose of further securing the rubber, which may be " solutioned
before tightening the disc as an additional precaution against the possibility of
leakage.
It is essential that annular beads H be turned on either side of the felloe or
rim which will imbed themselves into the rubber upon the discs being screwed
up, and thereby effectually securing the rubber against slip or creep
& also
making an absolutely air-tight joint.
66
If desirable an ordinary inner air-tube may be used in connection with my
invention but I wish to point out that a novel & important feature of my in-
vention is that I can dispense with the inner tube entirely & depend upon the
outer cover & novel construction of my invention.
The top portion I of the flange or disc E must be above the metal tyre as shewn
in the drawings for the purpose of supporting the pneumatic. tyre from any side
bulge.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declared that what
I claim is:
The preparation of any ordinary wheel felloe or rim & tyre for the purpose
of converting same into a pneumatic tyre or wheel & consisting of annular
beadings & projecting sides of tyre imbedding into rubber or other material
constructed substantially as described & for the purpose set forth in the accom-
panying specification & drawings.
Dated this 11th day of October 1808