Improvements in Pneumatic Tires.
Year: 1894

page_text: Date of Application, 8th Mar., 1894-Accepted, 14th Apr., 1894
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tires.
I, DAVID PARKS SIMS, residing at Lincoln, in the County of Lancaster and
State of Nebraska, Dentist, Office in Room 42 Burr Block, same City, United.
States of America, 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 :-
The object of this invention is to provide means for preventing a pneumatic tire
from being punctured; and it consists. in attaching a flat chain to a non-elastic
strip so that the links of the chain will be held together, and when in this condition
be embedded in the material of which the tire is made so as not to impair the
resiliency of the same; and the invention further consists in the construction and
combination of the parts, as will be hereinafter fully set forth and particularly
pointed out in the claims.
In the accompanying drawings, forming part of this Specification,
Figure 1 is a sectional view of a tire constructed in accordance with my inven-
tion, and
Fig. 2 is a detail view showing a portion of the chain attached to a non-elastic
strip.
A designates the pneumatic tire which is made up of rubber reinforced in the
usual manner, to which tire my improvements are shown applied.
a designates a strip or piece of canvas, and B a chain which is made up of rings
or links connected to each other to provide a flat chain of a width sufficient to
extend a short distance beyond the tread portion of the tire where it is likely to be
punctured. In practice these links will be made of a suitable metal, preferably
aluminium (or alloys thereof) on account of its lightness.
In making a tire with my improvements applied I first take a flat chain belt of
greater length than the circumference of the tire and stitch it to a canvas or textile
strip so that the links of the chain will be compressed or brought close together,
and these parts are moulded in the rubber forming the tire by vulcanizing. A tire
thus constructed will be expansible under the air pressure, and a thorough protection
is afforded against the same being punctured.
my said
If desired the tire may have a larger amount of rubber in the tread portion.
Having now particularly described and ascertained the nature of
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. In combination with a metallic rim and air inlet valve, of a pneumatic tire
comprising a protecting band or strip made up of associated links which are
attached to a fabric strip so as to hold the links in close engagement with each
other longitudinally and laterally, the flat chain or protecting band so constructed
being embedded in the rubber of the tire, substantially as shown.
2. In combination with the rim and air inlet valve, a pneumatic tire comprising
a flexible protection strip made up of a series of links held so as to be compressed,
said protection strip being embedded in the tread portion of the tire, for the
purpose set forth.
3. In combination with a wheel having a concave rim, of a pneumatic tire
comprising in part a flexible protection chain or strip made up of links which are
attached to a fabric strip in such a manner that the links are brought close together
so as to overlap the adjacent links, the chain and fabric strip being moulded in the
center of that portion of the tire which will form the tread, substantially as shown.

page_text: 4. A pneumatic tire, consisting of a vulcanized rubber tube having moulded
therein a protection strip made up of a metallic fabric composed of links or rings
which interlock both longitudinally and laterally, and a strip or strips of loosely
woven textile fabric to which the metallic fabric is connected so that the links will
be crowded together, substantially as set forth.
Dated this 9th dow of March 1894
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicant.