Improvements in and relating to the Securing of the Outer Covers of Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 29th Jan., 1897
Complete Specification Left, 27th Oct., 1897-Accepted, 27th Nov., 1897
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Securing of the Outer Covers of
Pneumatic Tyres.
I, ROBERT LAIDLAW GLASS of 33 East Howard Street in the County of the City *
of Glasgow, Printer and Publisher, do hereby declare the nature of my Invention
to be as follows:-
This Invention has reference to an improved method of fastening or securing the
outer tread covers of pneumatic tyres to the wheel rims of cycles and other road
vehicles, and whereby said covers will not drop off the rim should the inner air
tube get punctured.
According to my improvements I form the longitudinal edges of the rubber
and canvas or other outer cover of a roll, beaded, or like shape, and I form the
edges of the wheel rim of a nearly circular shape but leaving a small space for
the cover to pass through from these edges. Each of the edges of the cover would
be slit or have a part cut away to form two ends, and the edges of the rim would
be slit so as to insert these slit parts of tyre, and by this means work the tyre cover
in to the edges of rim and firmly secure them there. By this method the beaded
edges of tyre cover when inserted in the rounded edges of rim will be of a size
larger than the inner longitudinal edge opening from rim, and therefore will not
drop out should the inner air tube get punctured, while to patch up a punctured
tube cue of the edges of tyre cover would be worked round the rini and removed
at the slit part.
Dated the 28th day of January 1897.
COMPLETE SPECIFICATION.
Improvements in and relating to the Securing of the Outer Covers of
Pneumatic Tyres.
I, ROBERT LAIDLAW GLASS, of 33 East Howard Street, in the County of the City
of Glasgow, Printer and Publisher, do hereby declare the nature of my Invention
and in what manner the same is to be performed to be particularly described and
ascertained, in and by the following statement, that is to say:-
This Invention has reference to an improved method of fastening or securing the
outer tread covers of pneumatic tyres to the wheel rims of cycles and other road
vehicles, and whereby said covers will not drop off the rim should the inner air
tube get punctured.
And in order that my said Invention and the manner of carrying same into
"

page_text: practice may be properly understood, I have hereunto appended a sheet of
explanatory drawings in which Figure 1 represents a perspective view of the outer
cover of a pneumatic tyre. Figure 2 represents a similar view of the wheel rim,
Figure 3 represents a view of rim and of the outer cover being placed in position
thereon, while Figure 4 shows them in acting position.
Referring to these drawings:-
According to my improvements I form the longitudinal edges a of the rubber
and canvas or other cover A of a roll, beaded, tor like shape, and of rubber, canvas,
leather or like material; and I form the edges of the wheel rim B of a nearly
circular shape but leaving a small space for the cover to pass through from these
edges. Each of the edges of the cover would be slit or have a part cut away at a¹
to form two ends, and the edges 6 of the rim B would be slit at b¹ so as to insert
these slit parts a¹ of tyre a, and by this means work the tyre cover into the edges b
of rim B and firmly secure them there. By this method the beaded edges a of
tyre cover A when inserted in the rounded edges 6 of rim B as shown in Figure t
will be of a size larger than the inner longitudinal edge opening 62 from rim B,
and therefore will not drop out should the inner air tube get punctured; while to
patch a punctured tube one of the edges a of tyre cover A would be worked round
the rim B and removed at the slit part b².
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:-
The method herein described of fastening or securing the outer tread covers of
pneumatic tyres to the wheel rims of cycles and other road vehicles, substantially
as set forth.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.