An Improved Air Cushioned Tyre and Means for Fastening the same upon Velocipede and other Wheels.
Year: 1892

page_text: The decision of the Chief Examiner, acting on behalf of the Comptroller, of the
18th day of November 1893, allowed, under Section 18 of the Patents, &c.
Act, 1883, an Amendment of this Specification.
Date of Application, 29th Jan., 1892-Accepted, 26th Mar., 1892
COMPLETE SPECIFICATION (AMENDED).
An Improved Air Cushioned Tyre and Means for Fastening the same
upon Velocipede and other Wheels.
1, OTTO LINDNER, Engineer of 148, Rue de Mérode, Brussels Kingdom of
Belgium 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 a novel design of an air-cushioned elastic tyre which is
so constructed, as to be self protecting, that is to say: one of its portions, being
specially shaped and strengthened, "protects" the more fatigued and exposed one,
from being deteriorated damaged by contact with the edges of the metal rim.
My invention relates also to an improvement, in securing the aforesaid air-
cushioned tyre, upon the metal rim,-all relating to velocipede and other like wheel
tyres, commonly called "pneumatics." In its general parts, this new pneumatic tyre,
is composed of the well known pieces, but yet, in detail and in whole, it is very
different from others, and its novely consists in the special shape of the different
parts their respective combination, and the results obtained, by the special shape,
and from such combination.
In order that the nature of my invention may be readily understood, I hereafter
describe the same with reference to the accompanying drawings, which illustrate,
how my invention may be carried into effect.
Fig. 1. is a section of the improved outer-cover A.
Fig. 2. a section of the outer-cover A, when ready to receive the binding
wires D, after being placed on the metal rim R.
Fig. 3. a section of metal rim R.
Fig. 4. a section of the complete pneumatic tyre, mounted on the metal rim R.
The most important feature of my invention, is the special form of the elastic
outer-cover A, Figs. 1 & 2, being moulded as an endless hollow ring, open on its
inner periphery, and bearing having on its circumferential edges, special shaped
"lips or seams B, which when turned up, form hooks which are strengthened
by embedding (vulcanising into) canvas or other suitable material.
These special lips or seams B, serve:
1st. To secure the outer-cover A. (consequently holding the complete elastic
tyre) upon the metal rim R.
2ndly. When-seenred in position, they To "protect" the outer cover A of the elastic
tyre (outer cover A) from being cut by the edges of the metal rim R, as these lips
or seams B, being placed between, and the edge of the rim and the cover prevent any
contact of the two portions parts.
The elastic outer-cover A, may be lined with canvas or other suitable material.

page_text: The metal rim R, I employ in this case, is a flat hoop with flanges, as formerly
used when rubber tyres were first applied to carriage wheels, but any other form
of rim might be used, on which the above described outer-cover A, could be
fastened advantageously. To secure (put together) this improved pneumatie tyre
Upon the metal rim R, is placed a thick strip of leather, rubber, paper, or
other suitable material is-first-placed-upon the rim R. Upon this strip E, the
inflatable tube or air chamber C, is laid. The object of this strip E, is to
protect the air chamber C, from deterioration being damaged by the heads of the
spokes, and also to prevent lateral displacement of the outer cover A, & and the
binding wires D, as shown in Fig. 4. In some cases I cement the strip E,
to the air-chamber C, or have it made of one piece with the same, then I
place these thus united parts, upon the rim R, for the same purpose as above
described.
Then The above described outer cover A, is laid upon the rim R, and has its
edges with the special lips or seams B, turned upwards on both sides (Fig. 2.) so that
these turned up portions, form a kind of channel all round on each side of the outer
cover A. Small holes are pierced through the channeled portions of the outer
cover A, and eorresponding with similar holes in through the rim R.
The fixing material, for the outer cover A, consists of two wires (bands or
tubes) D, the ends of which pass through the holes of the outer cover A, and
rim R. On one or both of these protruding ends of the wires D, are screw cut
screw threads, for the purpose of receiving a self-lock nuts. This nut-is provided
with a projection on that part, which comes into contact with the rim. When the
unt is-serewed-on, the projection falls into the slot through which the wire ende pass;
and the-nut becomes self locking by the inflation of the tyre, by which operation it
is drawn tight against the rim.
When the tyre is inflated, the lips or seams B, are pressed against the inner walls
of the flanges of the rim R, and thus prevent the cover A, being cut by the edges
of the rim (Fig. 4) which is a constant danger to all other pneumatic tyres up to
the present.
I am aware that prior to my invention, air cushioned wheel tyres have been
made and their outer covering provided with thickened or beaded edges, hollow or
solid, or otherwise prepared in different ways, in order to be secured upon the
metal rim of velocipede wheels, by means of wires, cords, etc. and therefore I do
not claim such combination construction broadly.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare, that what I
claim is:
"
1st. In air cushioned elastic wheel tyres, an elastic outer cover A, having its
circumferential edges provided with special shaped lips or solid seams, B,
(strengethened with canvas or other suitable material) for the purpose of securing
thereby, with the aid of wires D, the outer cover A, upon the metal rim.
2ndly. In air cushioned elastic wheel tyres, an elastic outer covering A, having
its circumferential edges provided with special shaped lips or solid seams B,
(strengthened with canvas or other suitable material) for the purpose of
protecting" thereby (therewith) the sides of the outer cover A, from being cut'
by the edges of the metal rim, when the tyre (on a wheel in motion) is pressed
between the ground and the rim.
3rd. In air cushioned elastic wheel tyres an inflatable elastic air chamber C,
being provided with a thick strip E, of rubber, leather, paper, or other suitable
material, for the purpose: to protect said air chamber C, against deterioration by
the spokes of the wheel, and to prevent lateral displacement of above mentioned
outer cover A, and binding wires D.
4th-In-air-enshioned elastic wheel tyres, the application of a thick strip E,
of rubber, leather, paper or other suitable-material, for the purpose: to prevent

page_text: the air-chamber C, from being deteriorated by the heads of the spokes of the
wheels, and to prevent-lateral-displacement of above mentioned outer cover A,
and the binding wires D.
All substantially as described herein with reference to the drawings.
Dated this h
C
1000
O. LINDNER,
148, Rue de Mérode, Brussels, Belgium, Engineer.