Improvements in Devices for Preventing Puncturing in Pneumatic Tyres.
Year: 1896

page_text: Date of Application, 7th July, 1896-Accepted, 15th Aug., 1896
COMPLETE SPECIFICATION.
[Communicated from abroad by THE LONG ISLAND RUBBER AND CYCLE
COMPANY, in the City, County, and State of New York, United States of
America.]
Improvements in Devices for Preventing Puncturing in
Pneumatic Tyres.
I, WILLIAM EDWIN HEYS of 70 Market Street Manchester in the County of
Lancaster, Patent Agent, 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 devices and appliances for preventing the puncturing
of the inflated chamber or part of a pneumatic tyre, by thorns, nails, broken glass
and the like, its object being to provide these devices in such a manner that they
may be easily adapted to existing or other tyres, either inside or outside, at a
cheap rate.
The devices or appliances constructed according to these improvements consist
of a puncture proof strip built up of a series of plates or strips of various sizes
which are contained within a suitable flexible sheathing or envelope in- such a
manner that the strip will be resilient and responsive to compressions. The strip
may also be so constructed as to accommodate itself to different lengths of tyre, or
to variations in length due to different degrees of inflation.
. This invention is more particularly hereinafter described with reference to the
accompanying drawings in the various figures of which similar parts are denoted
by similar letters of reference.
Figure 1 represents in plan and side elevation respectively, a broken off length
of the puncture proof strip, without the envelope or sheathing.
Figure 2 shews a sectional plan including the envelope, a part of which is
supposed to be torn to shew the contained strip.
Figure 3 illustrates a longitudinal section through an elastic joint.
The envelope consists of parallel layers of textile fabric a a which may be sewn
together along the dotted lines Figure 2, in order to form pockets which contain
the puncture proof strips and pieces of thin sheet metal bc, or other equivalent
material. Obviously, the pockets may be formed by cementing the layers of
textile material together instead of sewing them. The armour is made up of the
lengths b, in line with each other, and between the ends of these lengths, one or
more very short lengths c. A convenient method of making up the armour is to
arrange the lengths bc in the manner illustrated, between the two layers of textile
material a, and to sew the two layers together the lines of stitching following
ciosely around all the edges of the plates. This forms a number of pockets each of
which contains a plate. Upon one side of each of the spaces in which the short
lengths or pieces c are arranged, there is a cover plate d which extends across the
entire space and overlaps the ends of the plates b. The cover plates are contained
in small separate envelopes, the edges of which may be sewn to the main envelope.
The strip thus completed form a very flexible puncture proof structure. If two
or three of the short lengths c are employed in the spaces between the lengths b,
very flexible joints are produced which are effectively protected by their cover
plates d.

page_text: In order to make the strip fit various sizes of tyres, and to provide for
inequalities in construction and the like, it is proposed to insert at one or more
points in the strip, a section e, of doubled elastic material such as elastic webbing,
the edges of which are sewn to the respective separated ends of the strip. To
prevent puncturing through these elastic sections each of them may be made to
contain or include a cover plate d.
Other means may be employed to enable the strip to accommodate itself to
various lengths of tyre and to variation in length, among which it is not necessary
to describe more than that illustrated by Figure 3. In this case, a cover plate fis
inclosed in an envelope to the ends of which are sewn or secured comparatively
short lengths of elastic material or webbing. The outer ends of these short
lengths ff, are also sewn or secured to the main envelope at points on each
side of any joint or point in the main strip where two plates 6 come together. It
will be understood that wherever the elastic sections/f¹ are inserted, the main
envelope is severed, and that the cover plate is long enough to protect the joint
when most extended. The movement of the severed ends of the main strip toward
and away from each other is permitted by the elasticity of the two sections.ff.
As illustrated by the drawings, the puncture-proof portion of the strip extends
through the centre, leaving side flaps a' which may be cemented to the tyre to
hold the strip in place. These side strips however are not an essential part of this
invention.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondent, I declare that what I claim is :-
1. A puncture-proof strip for pneumatic tyres consisting essentially of a flexible
envelope divided into long and short pockets in line with each other having
protective plates arranged therein and the joints being protected by cover plates,
constructed and arranged substantially as hereinbefore described and as illustrated
by the accompanying drawings.
2. A puncture-proof strip for pneumatic tyres severed at one or more points and
having an elastic section inserted between each pair of severed ends and a cover
plate arranged to protect the section, substantially as herein before described and
as illustrated by the accompanying drawings.
3. A puncture-proof strip for pneumatic tyres having its ends bridged by a
short puncture-proof strip connected with the ends of the main strip through
elastic sections, substantially as hereinbefore described and as illustrated by the
accompanying drawings.
Dated this 6th day of July A.D. 1896.
WILLIAM E. HEYS.