An Improved Method of Constructing and Affixing a Pneumatic Tyre.
Year: 1892

page_text: Date of Application, 1st Sept., 1892
Complete Specification Left, 31st May, 1893-Accepted, 12th Aug., 1893
PROVISIONAL SPECIFICATION.
"
An Improved Method of Constructing and Affixing a
Pneumatic Tyre.
JAMES PARR Cycle Manufacturer 61 Friar Lane Leicester do hereby declare
the nature of this invention to be as follows:-
4
My invention has for its object an improved method of constructing & fixing
a tyre (known as the pneumatic, they being inflated with gas or air under
pressure) to rims of wheels. The objection to the tyres now in use is the
difficulty of getting at the inner tube for repairs to same, or to replace broken
spokes, and to stop the creeping of the outer covering in the rim, and diminish.
the chafing of the inner tube.
These difficulties I claim to obviate by constructing the tyre in the manner
hereinafter described. The tyre is constructed of an inner tube, a covering of
india rubber & canvas, and is attached to the rim as follows.
To one side of the rim one edge of the outer covering is securely attached
by cement, the inner tube is then inserted in rim, the other 'edge of outer
covering which contains a band of metal, wire, or other suitable material which
regulates the size of tyre and the edge of which is perforated, eyeletted, or
hooked at intervals is then brought over other edge of rim and fixed on to
spokes, small projecting wires studs or hooks fixed at intervals in the rim of wheel,
or it may be hooked into holes in the rim.
1.
The inflation of the inuer tubes expands the outer covering and thus holds
all in position.
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1805
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1.
COMPLETE SPECIFICATION.
An Improved Method of Constructing and Affixing a
Pneumatic Tyre.
JAMES PARR Cycle Maker 61 Friar Lane Leicester 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 has for its object an improved method of constructing and
fixing a tyre (known as the pneumatic, they being inflated with gas or air under
pressure) to rims of wheels. The objection to the tyres now in use is the
difficulty of getting at the inner tube for repairs to same, or to replace broken
spokes, & to stop the creeping of the outer covering in the rim and diminish
the chafing of the inner tube: These difficulties I claim to obviate by constructing
the tyre in the manner hereinafter described. The tyre is constructed with an
inner tube, a covering of india rubber and canvas and is secured to the rim as
follows.
To one side of the rim one edge of the outer covering is secured by cement,
the inner tube is then inserted in rim, the other edge of outer covering which
contains a band of metal, wire or other suitable material which regulates the
hooked at
size of tyre & the edge of which is perforated, eyeletted, or
intervals, is then brought over other edge of rim & fixed on to spokes, small
projecting wires, studs or hooks, fixed at intervals in the rim of wheel, or it
may be hooked into holes in the rim. The inflation of the inner tube expands
the outer covering and thus holds all in position.

page_text: In the accompanying drawings Fig. 1 is a sectional view of the rim & tyre.
A is the metal rim, B is a canvas covering which goes round the metal rim A
and is cemented to same, C is a canvas band or covering which is cemented on
one of its edges and fixed to the rim A. and to which the outer covering of
india rubber D is fixed, E is a canvas strip which is cemented to B over the
surface of the rim but with a loose flap F of canvas & rubber on one side.
The rubber on loose flap being moulded into its proper shape, keeps the flap
in position and so prevents the inner tube G from being pinched by getting
down between rim A and covering C and D. The other edge of covering
and D which entirely envelopes the inner tube G is brought over the edge of
the rim A and is then fastened over spokes by nicks being cut in edge of
covering C and D which is then passed between the spokes and held in position
by wire or wires I passing through the edge of covering C & D, behind the
spokes, small projecting wires, studs or hooks as shown by I and held in position
by wire (or other suitable material) as shown at I and which passes the full
circumference of the combined band of rubber & canvas C & D.
Fig. II is a sectional & longitudinal view of portion of rim (one edge of which
is recessed) and tyre substantially same as Fig. I with the exception of way the
covering is held in the rim. A is the metal rim B the canvas covering, C and D
the combined canvas and rubber covering, E is the canvas strip cemented to B
with loose flap F which prevents inner tube G from being pinched between rim A and
covering C and D the edge of which has a wire H (or any other suitable material)
passing in or on one edge through its whole circumference, and is held in position
in rim A by end or ends of wires hooked in as shown at I and II and which are
fixed to & project from rim of wheel.
Having now described the nature of my said invention and the manner of carrying
the same into effect, I wish it to be understood that what I claim is
A method of constructing and affixing a pneumatic tyre as before described and
shown by Figs I and 11. with one side cemented firmly to the rim, and the
other, held in position by the spokes, wires; studs, hooks, holes in rim, or by hooks
fastening into rim.
Dated this 30th day of May 1893