An Improvement in or connected with Tyres for Cycles.
Year: 1892

page_text: Date of Application, 13th Jan., 1892
Complete Specification Left, 6th Apr., 1892-Accepted, 7th May, 1892
PROVISIONAL SPECIFICATION.
An Improvement in or connected with Tyres for Cycles.
-
I, GORDON MCDONALD, of 27 Milton Street, City of London, Manufacturer
of Fancy Goods, do hereby declare the nature of this invention to be as follows:-
This invention has for object, the particular construction or formation of the
outer covering of pneumatic or similar tyres, whereby said tyre may be more
readily affixed to the rim of the wheel and the inner liner or air chamber is less
liable to puncture, or in the case of puncture or damage from any cause is more
readily got at for repairs than pneumatic or similar tyres as hitherto constructed
and used.
For the purpose of my invention. I make the outer covering (which may be
thickened at the part coming in contact with the ground) in one piece with a
continuous inner flap to cover the whole of the immer tube or air chamber from
the side of contact with the outer surface to below the edge of the rim on the
other side, so that in use the whole of the running surface has an inner layer of
rubber, or other suitable material as a greater protection against puncture which
inner flap being left loose at the edge maintains the full resiliency of the tyre, and
further protects it against any chafing against the sides of the rim. The outer flap
is cemented to the outside of the continuous inner flap below the edge of the rim,
thus forming a complete and perfectly shaped tyre, so that in the event of puncture,
the outer flap can be immediately opened, exposing the air tube to be repaired.
The inner surface of this tyre is fixed directly on the rim of the wheel by cement,
wire, or any of the ordinary methods now in use for fixing solid or cushion tyres,
thus doing away with the troublesome method of fixing most of the pneumatic tyres
now in usc. I may cover this inner flap with metal, or any other unpuncturable and
suitable material.
My invention will be understood by the annexed drawings.
Figure is a transverse sectional view of an inflatable liner with the tyre proper
and its spirally wrapping flaps loosely in position.
Figure 2 shows the same section with the inflatable liner, the tyre, and the
spirally wrapping flaps in close contact and in the position on a wheel rim.
Figure 3 is a transverse section of a somewhat similar arrangement of inflated
liner A. and canvas cover A', and tyre B with its wrapper parts having a simple
overlap at the junction where the overlap is cemented or otherwise secured to the
opposite flap of the tyre lying flush within the overlap and with the scam hidden by
the wheel rim as in the previously described Figure 2.
A, the liner, B, the tyre, C the short flap. the long flap, which according to
Figure 1, wraps completely round the liner and as in Figure 2, its end E enclosed
and with the short end C cemented to and on the flap D. F is the wheel rim to
which the tyre and inflatable liner can be secured by wire-band G, or in other
convenient manner.
The invention thus described is composed of a liner and a tyre both of india
rubber bat the long flap D, Figures and 2, may be of canvas cemented to or
moulded into the rubber, so that the wrapping flap D alone of canvas could be
used as a substitute for the rubber at that part.
Dated this 12th day of Tan 1802
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Gordon McDonald.

page_text: COMPLETE SPECIFICATION.
An Improvement in or connected with Tyres for Cycles.
1, GORDON MCDONALD, of 27 Milton Street, City of London, Manufacturer
of Fancy Goods, 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 for object, the particular construction or formation of the
outer covering of pneumatic or similar tyres, whereby said tyre may be more
readily affixed to the rim of the wheel and the inner liner or air chamber is less
liable to puncture, or in the case of puncture or damage from any cause is more
readily got at for repairs than pneumatic or similar tyres as hitherto constructed
and used.
.
For the purpose of my invention, I make the outer covering (which may be
thickened at the part coming in contact with the ground) in one piece with a con-
tinuous inner flap to cover the whole of the inner tabe or air chamber from the
side of contact with the outer surface to below the edge of the rim on the other
side, so that in use the whole of the running surface has an inner layer of rubber,
or other suitable material as a greater protection against puncture, which inner
flap being left loose at the edge maintains the full resiliency of the tyre, and further
protects it against any chafing against the sides of the rim. The outer flap is
cemented to the outside of the continuous inner flap below the edge of the rim,
thus forming a complete and perfectly shaped tyre, so that in the event of puncture,
the outer flap can be immediately opened, exposing the air tube to be repaired.
The inner surface of this tyre is fixed directly on the rim of the wheel by cement,
wire, or any of the ordinary methods now in use for fixing solid or cushion tyres,
thus doing away with the troublesome method of fixing most of the pneumatic
tyres now in use. I may cover this inner flap with metal, or any other
unpuncturable and suitable material.
My invention will-be understood by the annexed drawings.
Figure 1 is a transverse sectional view of an inflatable liner with the tyre proper
and its spirally wrapping flaps loosely in position.
Figure
shows the same section with the inflatable liner, the tyre, and the
spirally wrapping flaps in close contact and in the position on a wheel rim.
Figure 3 is a transverse section of a somewhat similar arrangement of inflated
liner A and canvas cover A¹, and tyre B with its wrapper parts having a simple
overlap at the junction where the overlap is cemented or otherwise secured to the
opposite flap of the tyre lying flush within the overlap and with the scam hidden
by the wheel rim as in the previously described Figure 2.
1
A, the liner. B, the tyre. C, the short flap. D, the long flap, which according
to Figure wraps completely round the liner, and as in Figure 2, its end E enclosed
and with the short end C cemented to and on the flap D.
is the wheel rim to
which the tyre and inflatable liner can be secured by wire band G, or in other
convenient manner.
The invention thus described is composed of a liner and a tyre both of india
rubber but the long flap D, Figures 1 and 2, may be of canvas cemented to or
moulded into the rubber, so that the wrapping flap ID alone of canvas could be used
as a substitute for the rubber at that part.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The novel construction of cycle tyre provided with flaps C, D, forming an
overlap and enclosing the inflatable or other tubular liner as set forth, and as shown
h the annavad
13

page_text: 2. The modification of the above as described with reference to Figure 3 of the
annexed drawings.
Д. ПО
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Gordon McDonald.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Gordon McDonald.