Improvements in Pneumatio Tyres for Cyole and other Wheels.
Year: 1897

page_text: Date of Application, 26th June, 1897
Complete Specification Left, 19th Apr., 1898-Accepted, 20th May, 1898
PROVISIONAL SPECIFICATION.
Improvements in Pneumatio Tyres for Cyole and other Wheels.
I, WORDSWORTH EVERARD JONES of Dunsby Rectory, Bourne, in the County of
Lincolnshire, Clerk in Holy Orders, do hereby declare the nature of this invention
to be as follows:-
My invention relates to improvements in the general construction of single tube
or light or racing tyres, and to improvements in the construction of the outer covers
or envelopes of detachable tyres for roadsters, and has for its object in each case to
provide means for the prevention of puncture occurring to the air tube when inflated,
by reason of the wheel passing over sharp edged substances lying within its path
or track.
In so far as relates to single tube, light or racing tyres, I employ an air tube or
chamber of ordinary construction, and this when deflated, or partly inflated I
entirely or partly cover or surround by an outer tube composed of platted or woven
string, cord, gimp, strips of leather, or strips or ribbons made from the outer skin
of bamboo, or any desired combination of these or similar material, and before
placing the said cover upon the air tube or chamber, I cover the whole of that
portion of the latter, intended to be nearest the tread of the tyre, and for such
portion of its cross sectional circumference as would probably be above, or extend-
ing beyond the rim of the wheel, with a layer or layers of compressed wadding, or
any suitable equivalent therofor, and the said layer or layers may or may not be
attached to the said tube or chamber, and or to each other, by the aid of any suit-
able elastic cement. Or instead of first forming the said outer tube or cover and
placing it over the wadding armoured air tube as described, I may plat or weave
the said outer tube or cover upon the said armoured air tube or chamber, preferably
after the latter has been partly or wholly inflated.
The object and purpose of the said surface of compressed wadding is to prevent
puncture of the air chamber, by such substances as nails, tacks or thorns, the latter
of which could not possibly be passed through the said wadding, while the points
of small nails or tacks would be turned or bent thereby, and the said outer cover or
tube would materially assist to prevent such sharp pointed substances from entering
the compressed wadding or armour, since the skin of bamboo is itself practically
unpuncturable by such substances as those cited.
In order that the said outer tube or casing of the air chamber may be impervious
to wet or rain, I waterproof this when completed by a coating or coatings. of any
suitable varnish, or waterproofing solution or cement, but for preference I use the
gum or juice of a tree known as the "Sisee" or black varnish tree of Burma (in its
natural condition or otherwise) for this purpose, which by the use of suitable dyes
may be colored to any tint desired.
In so far as relates to the outer covers or envelopes of detachable tyres, I enclose
within the thickest portion of the substance of the said cover, during the moulding
thereof, a layer or layers of compressed wadding or the like, for the purpose of

page_text: rendering this portion, or the tread of the tyre, unpuncturable by such substances
as those previously mentioned.
Dated this 26th day of June 1897.
Improvements in Pneumatic Tyres for Cycle and other Wheels.
I, WORDSWORTH EVERARD JONES, of Dunsby Rectory, Bourne, in the County
of Lincolnshire, Clerk in Holy Orders, 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 improvements in the general construction of single tube
or light or racing tyres, and to improvements in the construction of the outer
covers or envelopes of detachable tyres for roadsters, and has for its object in each
case to provide means for the prevention of puncture occurring to the air tube,
when inflated by reason of the wheel passing over sharp edged substances lying
within its path or track.
In order that my said invention and the manner in which I purpose carrying
the same into effect may be fully understood, I have hereunto appended a sheet of
drawings of which :-
Fig. 1 is a perspective view of a portion of a single tube or racing tyre according
to my invention, Fig. 2 being a cross sectional view of same drawn to a slightly
enlarged scale.
Fig. 3 is a cross sectional view of an ordinary roadster tyre, the detachable.cover
or envelope of which is constructed according to my invention.
In so far as relates to single tube or light or racing tyres as illustrated by
Figs. 1 and 2, I carry my invention into effect by employing an air tube A of
ordinary construction which I cover or surround by an onter tube B, composed of
platted or woven string, cord, gimp, gnt, or strips of leather, or ribbons or strips
made from the outer skin of bamboo, or any desired combination of these or
similar material or materials, and before placing the said cover B upon the air tube
or chamber A, I cover the whole of that portion of the latter intended to be
nearest to the tread of the tyre, or in other words such portion of its cross
sectional circumference as would probably be above or extending beyond the rim
of the wheel, with a layer or layers C of compressed wadding, refined wool or the
like, the object and purpose of the said surface C being to prevent puncture of the
tube or chamber A by such sharp pointed substances as nails, tacks, thorns, or
the like, that may happen to be lying within the track of the wheel when in use,
as I have found by practice and repeated tests, that such things as thorns cannot
possibly be passed through the substance C after compression, and while 4
in a moist condition, while the points of small nails or tacks, would be turned or
bent over thereby, and in addition to the resistance offered by the substance C, the
outer casing B.would materially assist to prevent the sharp pointed substances
named, from reaching the substance C,,since the materials of which B is composed,
more especially the skin of bamboo, in combination with the manner of its 4
construction renders the same practically unpuncturable.
I have found in practice that the said wadding or the like offers greater
resistance if in a wet or semi-wet condition, and as water rapidly evaporates, and

page_text: oil or other grease is detrimental to the life of the rubber, I employ glycerine, or
a preparation known as styptic colloid, or both, with which I saturate the
substance C before being compressed, which also serves to bind the same together
after compression, and retains its moisture for an almost indefinite period, and
does not injure the rubber tube or chamber A.
I may first prepare the cover B and slip this over the layer C and the chamber A,
while the latter is wholly or partly deflated, or I may inflate the chamber A,
and while in this condition plat or weave the cover B upon this and the layer C,
but in either method of carrying my invention into effect the completed tyre when
inflated would appear in cross section substantially asiat Fig. 2.
In order that the said cover or casing B may be impervious to rain or other
wet, I waterproof this when completed by a coating or coatings of any suitable
varnish or waterproofing solution, but for preference, I use for this purpose the
gum or juice of a tree known as the "Sisee" or black varnish tree of Burma,
either in its natural condition or after being refined, and which I may color or tint
as desired' by the use of suitable dyes.
In so far as relates to the outer covers or envelopes of detachable pneumatic
tyres, I mould or otherwise incorporate with the said outer cover D during its
manufacture, and enclose within its thickest portion (or that intended to be the
tread of the wheel) a layer or layers of the compressed substance C as illustrated
by Fig. 3, for the purpose of rendering this portion of the cover unpuncturable by such
substances as that previously referred to, and I may employ the usual material in
the constraction of the said outer cover D, which I may afterwards coat or partly coat
with an outer facing of the platted' or woven material B, which may be connected
thereto by the means of any suitable cement, and be afterwards varnished in the
manner previously described.
To employ the skin of bamboo for the purposes stated this must be stripped
from the cane whilst green, and then preferably rolled or laid flat until wanted,
when by soaking the said strips in water to render them pliable the same may
then be used for platting or the like after the manner of basket work.
Having now particularly described and ascertained the nature of my said
invention and in what manner, the same is to be employed, I declare that what I
claim is :-
1st. In the manufacture of single tube or detachable pneumatic tyres for cycle
and other wheels, the employment of a strip or strips of compressed wadding,
refined wool or the like, as a medium for the prevention of puncture of the air
chamber substantially as herein set forth and shewn.
2nd. In the manufacture of light or single tube pneumatic tyres, the combination
of an air tube or chamber A partially coated or enclosed by a layer or layers of
compressed wadding or the like C, the whole being surrounded or enclosed by a
casing B, composed of platted or woven cord, string, gimp, gut, leather or the like
or the skin of bamboo, substantially as heroin described and shewn by Figs. 1 and 2
of the accompanying drawings.
3rd. In a detachable cover or envelope for pneumatic tyres the employment of a
cover or envelope such as D, in the tread portion of which is moulded or otherwise
incorporated a layer or layers of compressed wadding or the like C, the outer face
of which said cover may or may not be covered by a platted or woven surface,
of cord, string, gimp, gut, or the like or leather or the skin of bamboo
substantially as described and shewn by Fig. 3 of the drawing.
101
1
L B
GEO. THOS. HYDE,
1, Broad Street Buildings, Liverpool Street, E.C.,
Agent for Applicant.