Improvements in Elastic Tires.
Year: 1892

page_text: Improvements in Elastic Tires.
I, PETER GENDRON, of 1413 Walnut Street, in the City of Toledo, County of
Lucas, State of Ohio, United States of America, Manufacturer, do hereby
declare the nature of my 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 new and useful improvements in elastic tires, and the
invention consists in the peculiar construction of a spring tire surrounded by a
tubular casing of rubber or other material.
The invention further consists in the peculiar construction, arrangement and
combination of the various parts, all as more fully hereinafter described and
claimed.
In the drawings,
Fig. 1 is a side elevation of a wheel to which my invention is applied.
Fig. 2 is a detached section of a portion of the tire showing the spring in
elevation.
Fig. 3 is a vertical cross-section of Fig. 2.
Fig. 4 is a similar section to Fig. 2, showing a different form of spring.
Fig. 5 is a vertical cross-section of Fig. 4.
Fig. 6 is a detached perspective view of the spring shown in Figs. 4 and 5.
In the present state of the art pneumatic tires composed of rubber or other
elastic tube are used on bicycles and give quite satisfactory results.
Such
pneumatic tires have a serious objection in the fact that as soon as they become
punctured their value is destroyed; their use is therefore restricted to places where
the road is perfectly smooth and even and free from obstacles, such as stones etc.,
which very soon cut through.
My invention is intended to give a tire with all of the elasticity of the pneumatic
tire, but without its disadvantages.
To this end I form an inner tire A of a spring in any suitable manner, and
around this I place a casing or tube B which is secured as may be desired to the
rim C of the wheel.
It is evident that if the casing B is a so-called pneumatic tire, when reinforced
by a spring, such as A, should it become punctured, it will still retain its elasticity,
the spring giving the necessary reinforcement to the casing.
This reinforcement or spring tire I preferably form as shown in Figs. 1
and 2, of a spiral spring A spirally arranged within the tube and covered with a
casing E.
The spring may be arranged within the tube loosely or by securing each spirally
to the inside of the tube, so that a depression at one point in the tire will allow the
different coils of the tire to move independently of the adjacent coils or, the
coils may be connected together to reinforce each other. I preferably arrange
them with the coils capable of independent movement, as I obtain more perfect
elasticity.
If desired the casing E may be omitted and the coil secured directly to the
interior of the tube.
I preferably construct the tire of a rubber portiou a and the canvas portion b.
Instead of forming this reinforcing spring, as shown in Figs. 1, 2 and 3, I may
form it as shown in Figs. 4, 5 and 6, in which it is shown to consist of a
single wire c bent to have a series of loops d and spirally arranged within
the tube.
Within this spring tire I have shown an inner lining or casing e. This however
is not necessary and may be omitted if desired.

page_text: I preferably secure this form of spring at the points intermediate the
loops and if the interior casing is used at the points 7, this allows the move-
ment of the parts of the spring upon itself at h, where the two parts of the
spring cross each other in forining the loop, and brings no strain upon the point of
attachment.
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:
1. The combination with a tubular tire, of an interior looped reinforcing spring,
substantially as described.
2. The combination with a tubular tire of an interior looped reinforcing spring,
spirally arranged, substantially as described.
3. The combination of an elastic tubular tire, of an interior reinforcing spiral
spring spirally arranged, substantially as described.
4. The combination with an elastic tubular tire, of an interior looped reinforcing
spring spirally arranged, having its coils capable of independent movement,
substantially as described.
5. The combination with an elastic tubular tire-composed of the rubber
portions a and canvas portion b, of the spiral spring d, spirally arranged within
said tire, and a covering E for said spring, substantially as described.
Dated this 13th day of November 1991
PETER GENDRON.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.