Improvements in and relating to Pneumatic and other Rubber Tires for Cycles and other Vehicles.
Year: 1891

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883), as allowed
by the decision of the Comptroller General of the 2nd day of July 1897.
Date of Application, 16th Dec., 1891
Complete Specification Left. 15th Sept. 1892-Accepted. 22nd Oct., 1892
Date of Application, 16th Dec., 1891
Complete Specification Left. 15th Sept.. 1892-Accepted. 22nd Oct.. 1892
Improvements in and relating to Pneumatic and other Rubber Tires
for Cycles and other Vehicles.
I, SHELDON HAROLD STUBBS, of 16 Percival Street, Birch Lane, Longsight,
Manchester, in the County of Lancaster, Eugineer, do hereby declare the nature of
this invention to be follows:-
.
My invention relates to improvements in pneumatic and other rubber tires and
in the mode of connecting the same to the wheels of cycles or other vehicles.
In carrying my improvements into effect I form a tire with transversely rigid
turned over edges adapted to fit over reversely turned over lips upon the edges
of the wheel rim. These lips are preferably on the underside of the rim and are
turned back towards the spokes or centre, so as to leave shallow grooves of suit-
able size to receive the turned over rigid edges of the tire into which grooves
the edges may be readily inserted.
Tires thus constructed are readily prepared for running by half inflating the
pneumatic tube and placing the same in position, then placing the tire round the
half inflated tube and tucking the rigid edges into the grooves on either side,
after which it is only necessary to fully inflate the tube, and the higher the pres-
sure of inflation the more securely will the rigid edges of the tire be forced into
their holding grooves; I prefer, however, to first cement in position one of the
rigid edges of the tire in order to save trouble in fixing.
The rigidity of the edges of the tire may be attained in any convenient way
as for example either by hard vulcanising that portion of the india rubber or by
lapping over the edges and inserting strips of any hard substance such as wood,
steel, cane or whalebone; I, however, prefer to stiffen the edges by lapping them
over zig-zagged wire, for by so doing I add the least amount of weight at the
same time that I secure perfect rigidity transversely and ample elasticity longi-
tudinally and so make the said edges easily expand to allow of being turned
over out of the way while placing the tube on the rim.
.
1-1X
1
15
1
1001

page_text: Improvements in and relating to Pneumatic and other Rubber Tires
for Cycles and other Vehicles.
I, SHELDON HAROLD STUBBS, of 16, Percival Street, Birch Lane, Longsight,
Manchester, in the County of Lancaster, Engineer, 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:-
My invention relates to improvements in pneumatic and other rubber tires and
in the mode of connecting the same to the wheels of cycles or other vehicles.
In carrying my improvements into effect I form a tire with transversely rigid
edges adapted to fit over reversely turned over lips upons the edges of the wheel
rim. These lips are preferably on the under side of the rim and are turned back
towards the spokes or centre, so as to leave shallow grooves of suitable size to
receive the turned over ridged edges of the tire into which grooves the edges
may be readily inserted.
The rigidity of the edges of the tire may be attained by lapping them over
zig-zagged wire, for by so doing I add the least amount of weight at the same
time that I secure perfect rigidity transversely and ample elasticity longitudinally
and so make the said edges easily to expand to allow of being turned over out of
the way while placing the tube on the rim.
And in order that my invention may be fully understood and readily carried
into effect I will describe the accompanying sheet of drawings reference being
had to the figures and letters marked thereon.
Figs. 1 to represent my improved tire Figure 1 shows in plan a part of the
tire spread out with the zig-zag wire edges in the pockets. Fig. 2 shows the
improved tire or outer covering in cross section with the rubber attached, and
Fig. 3 is a cross section of the complete tire applied to a wheel rim.
In the drawings a designates the strip of canvas employed to form the base
or foundation of a tire the rigid edges being formed by means of a wire bent
either in one continuous length or otherwise into a zig-zag form and secured in
position by stitches c.
Fig. 3 shows my improved tire or outer band a formed with transversely rigid
edges applied to a pneumatic tube e on a wheel rim f which is provided with
turned over lips fl; to apply the tire or outer band a it must be placed in position
on the rim fand its rigid edges tucked into the grooves formed by the lip f¹ on
either side after which it is only necessary to fully inflate the tube e, and the
higher the pressure of inflation the more securely will the rigid edges of the tire a
be forced into the holding grooves and locked under the lips f¹.
The effect of stitching the zig-zag wire into pockets of the tire makes it
impossible for the tire or outer band a to draw out of the lips f¹ of the rim f.
In my Provisional Specification I stated that when applying the tire a to the
wheel rim I preferred to first cement in position one of the rigid edges in order
to save trouble in fixing. I find, however, in practice that this is not necessary
although it may be done if desired.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I
claim is:-
1. An improved tire the outer band or covering of which has its edges stiffened
transversely by means of zig-zag wire substantially in the manner herein set
forth for the purposes spécified.

page_text: 2. The combination with a tire formed with transversely rigid edges, of zig-zag
wire of a wheel rim with turned over lips forming grooves adapted to receive the
turned over rigid edges of said tire substantially as specified.
Dated this 14th day of September 1892.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.