Improvements in the Means for and Mode of Securing Pneumatic Tyres on Wheels.
Year: 1892

page_text: Date of Application, 5th Oct., 1892
Complete Specification Left, 19th May, 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in the Means for and Mode of Securing Pneumatic
Tyres on Wheels.
We ALBERT WHITEHOUSE of Bridgtown near Cannock in the County of
Stafford Cycle Agent and ARTHUR WHICKER of Wellington Key Dublin
Traveller and WILLIAM NASSAU BLACK of 18 Upper Bridge Street Dublin
Agent do hereby declare the nature of our said invention to be as follows :-
Our invention has for its object improvements in the means for and mode of
securing pneumatic tyres on wheels by which such tyres are attached to the rims
in an easy and effective manner and so as to be capable of being removed from the
rim for repairs.
In carrying my invention into effect I construct the rim of the wheel with small
flanges which form a recess on the inside of the circumference at each side of the
rim and in these recesses I expand a wire which is formed to pass through a
continuous loop which is formed in the covering of the pneumatic tyre or the edge
of the tire is passed under the wire and the wire circle expanded sufficiently to
firmly fix the edges of the tyre, I retain the wires in an expanded condition by any
suitable device such as by forming a toothed rack at one end of the wire and a
catch at the other end so that as the circle of the wire is expanded it is retained in
its expanded condition. The wire may also be kept in its expanded condition by
means of a screw nut or other similar contrivance or I may simply expand the
wire hoops against the internal circumference of the rim and retain them thus by
butting the ends of the wire against each other.
Dated this 4th day of October 1892.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicants.
COMPLETE SPECIFICATION. ·
Improvements in the Means for and Mode of Securing Pneumatic
Tyres on Wheels.
We ALBERT WHITEHOUSE of Bridgtown near Cannock in the County of
Stafford Cycle Agent and ARTHUR WHICKER of Wellington Key Dublin
Traveller & WILLIAM NASSAU BLACK of 18 Upper Bridge Street Dublin Agent
do hereby declare the nature of our said invention and in what manner the same is
to be performed to be particularly described and ascertained in the following
statement:-
Our invention has for its object improvement in the means for and mode of
securing pneumatic tyres on wheels by which such tyres are attached to the rims in
an easy and effective manner & so as to be capable of being easily removed
for repairs and yet be firmly retained in position when under the most trying
conditions.
In carrying our invention into effect we construct the rim of the wheel with small
flanges which form a recess & the inside of the circumference at each side of the
rim and in these recesses we expand a wire which is formed to pass through a
continuous loop which is formed in the covering of the pneumatic tyre or the edge
of the tyre is passed under the wire & the wire circle expanded sufficiently to firmly
fix the edges of the tyre we retain the wires in an expanded condition by any
suitable device such as by forming a toothed rack at one end of the wire & a catch
at the other end so that as the circle of the wire is expanded it is retained in its

page_text: expanded condition the wire may also be kept in its expanded condition by means
of a screw nut or other similar contrivance or we may simply expand the wire
hoops against the internal circumference of the rim & retain them thus by butting
the ends of the wire against each other.
In order that our invention may be clearly understood and more easily carried
into practise we have appended hereunto a sheet of drawings upon which we have
fully illustrated the nature of our said improvements.
Figure 1., is a section through our tyre when inflated complete.
Figure 2, is an enlarged section of one side of the rim shewing our mode of
fastening.
Figure 3, is a similar section to Figure 2 but shewing a slight modification in
the flange.
Figure 4, shews one method of joining the ends of the wires.
Figure 5, shews another method of joining the ends of the wires.
Figure 6, shews another mode of joining the ends of the wires.
Figure 7, shews the method of inserting the edge of the tyres in the recesses.
In carrying our invention into effect we construct the rim A of the wheel
with the Hanges a¹ which thus form the recesses a³ on the inside of the
circumference of the wheel. The outer covering of the pneumatic tyres is
provided with the continuous loops through which the wires D pass. The
covering is then placed upon the air tube E and the tire secured at each side
the edge of the cover containing the wire D being expanded or forced over the
flange by the fingers as shewn at Figure 7 until the wire expands into the
recess by which the cover B is retained in position the tube is then blown
up & the wires find their bearing against the flanges a¹ in the recesses a² the
strain upon the wire being compressional instead of tensional as in the case of
wires outside the rim for removing the cover the air valve is opened and the
air removed after which one edge of the tire can readily be withdrawn from
the groove a by means of the fingers upon which the wire expands into the
position shewn by Figure 3 which allows sufficient room for the air tube E to
be withdrawn for repairing.
The wire may be jointed & made to butt at the
joint as shewn by Figure 5 the sleeve d¹ being provided and attached to the one
end so that when the wire is withdrawn from the recess the expansion is thus
allowed this being also effected by toothed racks at each end of the wire as shewn
by Figure 4 or by a screw pin as shewn by Figure 6 thus allowing ample room for
the removal of the air tube E. In place of threading the wire through the loops
we may have the wire separate the edge of the tyre being first placed in the groove
and the wire inserted as before described thus retaining the edges of the cover
tightly between the wire and the flange. One of the wires may be formed more
expansive so that it would fit very tightly while that on the other side may be
fitted more easily to allow of being the more readily removed. It is evident that
the rim A and flanges or projections a¹ may be considerably varied in shape
and yet answer precisely the same purpose viz. of securely retaining the wire
rings.
What we claim is :-
:―
The means for and mode of securing pneumatic tyres-on wheels consisting of the
combination of the flanges or projections a¹ on the inside circumference of the
rim and the compression wire D substantially such as shown upon the drawings and
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.