Improvements in Pneumatic Tires for Bicycle or other Vehicle Wheels.
Year: 1896

page_text: Date of Application, 1st May, 1896-Accepted, 25th July, 1898
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tires for Bicycle or other Vehicle
Wheels.
I WILLIAM FREDERIC GOERDES, M.D. residing at 328 Jefferson Avenue,
Brooklyn, New York, 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 :-
This invention relates to improvements in pneumatic tires for bicycle or other
vehicle wheels; the object of the invention being to provide a tire with means for
protecting the pneumatic portion thereof from the danger of puncture directly
through the tread of the tire. The tire embodying my improvement will be light,
inexpensive and durable.
The invention will be hereinafter fully described and specifically set forth in the
annexed claims.
In the accompanying drawings forming part of this specification:
Fig. 1 is a perspective view of a section of my tire having the rim or felly of a
bicycle wheel attached thereto, and
Figs. 2, 3 and 4 are cross sections illustrating slight modifications of my
improvement.
In the practice of my invention, I provide primarily, an ordinary outer tube A,
which is composed of rubber or other flexible material. This said tube is provided
with the ordinary tubular projection a, to which is attached a valve a', of a
common construction adapted to admit air to the tube A, for the purpose of
inflating it.
The outer or tread portion A¹, of the tube A, is thickened slightly and fitted to
this said thickened portion upon its entire inner edge is placed a ring B, which
ring is preferably composed of aluminum but other material might be employed.
The said ring is segmental in cross section and it exactly registers with the inner
wall of the tread A, of the tube A.
To secure the said ring within the tube A, I then provide an annular strip of
rubber C, which strip when placed in position is segmental in cross section and is
provided at its edges with thickened portions c, which portions are tightly cemented
to the inner wall of the tube A, whereby a durable tire which has its air
compartment thoroughly protected is produced.
The above description applies to my tire in its preferred form but it can be
made as illustrated respectively by Figs. 2, 3 and 4 of the drawings.
In Fig. 2, the strip C is extended from its two edges into an annular segmental
portion D, which provides practically an inner tube, but its thickened portions c,
are cemented to the inner wall of the tube A, in a manner precisely as described
above.
In Fig. 3 the strip C is illustrated in a slightly modified cross sectional contour
and the filling or guard B', is composed of cork or other suitable light weight
material instead of metal as illustrated in Figs. 1 and 2. In this construction, the
portions care secured to the inner wall of the tube A, by means of cement, the
same as described in relation to Fig. 1.
In Fig. 4, an extended portion D, is provided and secured to the portion C,
whereby an inner tube is supplied which is similar to that described in relation to
Fig. 2, the thickened portions o, being cemented to the tube A.

page_text: I do not confine myself to the specific details of construction as herein described,
as it is obvious that under the scope of my invention I am entitled to the use of
slight modifications.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same. is to be performed, 1 declare that what I
claim is
1. A pneumatic tire having an annular guard secured to the inner portion of its
tread by means of an annular strip of flexible material which is cemented to the
inner walls of the tube, substantially as shown and described.
2. In a pneumatic tire, the combination of an annular ring and a flexible tube
with an annular strip which is cemented to the inner wall of said tube, substantially
as shown and described.
3. The combination of a pneumatic tire comprising an outer tube, an annular
guard and an annular securing-strip with the felly of a wheel, substantially as
shown and described.
Dated this 1st day of May 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.