Year: 1897

page_text: Date of Application; 21st Aug., 1897-Accepted, 16th Oct., 1897
АП
moured bicyc
I, BERTIE LANGRIDGE, Mining Engineer," 1, Rogers Block Boulder, State of
Colorado, U.S.A., 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 pneumatic tires for Bicycles and other vehicles, the
object of the same being, to provide a puncture proof tire, which is as resilient
or elastic as the ordinary tire now in use.
The invention consists of a tire made up of a tubular portion having an annular
groove or indentation around its outer surface, and a band of puncture proof
material fitting within said groove or indentation, and constituting the tread
surface of the tire.
The invention is illustrated in the accompanying drawings, in which
Figure 1. represents a section of tubular portion of tire, constructed according
to my invention, with armour applied thereto.
Figure 2. is a cross section, through the tire and armour.
Figure 3. is a similar view of a modified form.
Figure 4. is a similar view of a second modification.
Like reference numerals indicate like parts in the different views.
My improved tire is made up of a tubular portion 1 adapted to be inflated with
air in the usual manner and provided with an annular groove or indentation 2.
around its outer surface. This groove may be saucer-shaped in cross section, as
shown in Figure 2, wherein shoulders 3. 3. are formed on each side thereof, or
it may be rounded, or V-shaped as shown in Figures 3. and 4. respectively.
Fitting within the groove or indentation 2. is a band 4 constructed of rubber or
other puncture proof material, the inner surface of which is shaped to conform to
the groove 2. The said band constitutes the tread-surface of the tire, and is held
in place on the tubular portion 1 thereof, either by cementing or by clinching the
same in place by inflating said tube.
The outer surface of said band may be flush with the outer surface of the tubular
portion 1 or it may project slightly therefrom, as may be found most convenient.
In order to remove this band, to apply a new one, it is merely necessary to
deflate the tubular portion 1, when the band may be readily slipped out of the
groove, or indentation 2, in said tubular portion. The new one to be applied by
reversing this operation.
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:-
1. A pneumatic tire, comprising a tubular inflatable portion, and a band of
non-puncturable material clinched upon the outer surface thereof substantially
as described.
comprising a tubular inflatable portion, having an
0
nanumatin
tina

page_text: annular groove or indentation in its outer surface, and a band of non-puncturable
material fitting within said groove or indentation substantially as described.
3. A pneumatic tire, comprising a tubular inflatable portion, having an
annular groove or indentation and a band of non-puncturable material fitting
within said groove and locked in place by the inflation of said tubular portion
substantially as described.
4. A pneumatic tire, comprising a tubular inflatable portion having a
V-shaped groove or indentation in its outer surface, and a band of non-
puncturable material, the inner surface of which conforms to the shape of the
said groove and fits therein, the outer surface of said band being curved to con-
form to the outer surface of said tubular portion substantially as described.
Dated this 21st day of August 1897.
F. W. Golby,
BERTIE LANGRIDGE,
36, Chancery Lane, London, W.C., Patent Agent for the Applicant.