Improvements in Pneumatic Tyres for Velocipedes and, other ⚫ Vehioles.
Year: 1896

page_text: Date of Application, 25th Apr., 1898
Complete Specification Left, 25th Feb., 1897-Accepted, 24th Apr., 1897
PROVISIONAL SPECIFICATION.
. Improvements in Pneumatic Tyres for Velocipedes and, other
⚫ Vehioles.
I WILLIAM FREDERICK TAYLOR of 222, Whitehorse Road, Croydon, in the County
of Surrey, Consulting Engineer, do hereby declare the nature of this invention to be as
follows:-
In pneumatic tyres for velocipedes and other vehicles I use a tape of india rubber
or india rubber and canvas or of any other material or composition from which
pneumatic tyres are usually made, and preferably with a corrugation or corrugations
as hereinafter mentioned, and with or without an inner tube; and I wind the said tape
into a spiral form and preferably vulcanize the ends of the said tape together so as to
produce an endless spiral tube or tapo. I may either include within this spiral of
tape an inner tube inflated in the usual manner or I may make the underlapping edges
of the said tape a woh or flap of india rubbor or such suitablo substanco which will
during the process of inflation act as a valve and provent the air from escaping. I
may place corrugations diagonally at a suitable angle to the fabric when laid straight
and which when the fabric is spirally wound form a continnons straight line in the
direction of the circumference of the rim. When the tyre is inflatel this corrugation
or corrugations bind into a groove preferably placed centrally in the rim the increased
inflation diminishing the diameter of the tyre and thereby securing it firmly in
position. A spiral corrugation or corrugations is also preferably placed upon one edge
of the fabric and at the commencement of the web or flap and the two corrugations
when meeting assist to give the limit of circumforential contraction to the tyra. And
in order that the spiral ridgo shall not tend to throw the wheel sideways I preferably
arrange at a suitable angle to the flap a corrugation or corrugations so that when wound
in a suitable spiral they, combined with the spiral corrugation or corrugations on the
edges, will produce a V shaped corrugation or corrugations upon the tread of the
tyre. The rims for the said tyres are made of any suitable section but preferably
with a depression in their centre to receive a single bead. All or any of the
corrugations may be either continuous or interrupted and the rim may be made oither
to receive the cross or diagonal corrugations or otherwise as may be preferred.
Dated this 21th day of A180
COMPLETE SPECIFICATION.
Improvements in Pneumatio Tyres for Velooipedes and other
Vehioles.
I, WILLIAM FREDERICK TAYLOR of 222, Whitehorse Road, Croydon, in the County
of Surrey, Consulting Engineer, 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:-
I use spiral tape of india rubber or canvas or any other suitable material formed
substantially as shown in the drawings annexed hereto, this being a most suitable shape
for the purpose or in any similar manner. I may unite the ends of the spiral tape
either by vulcanizing or otherwise, and I may use either an inner tube within such a
spiral either butt ended or otherwise or I may depend upon the spiral tube to occlude

page_text: the air. I retain the said tire upon a rim of grooved section a variety of such being
shown in Fig. 8 of the drawings annexed hereto effected by means of a diagonal
corrugation or corrugations upon the rubber canvas or other fabric which corrugations
when the fabric is coiled into a spiral lie in the direction of the circumference of the
rim. A description of the drawings accompanying the specification is as follows:-
Fig. 1 shows a section of the tire in its simplest form.
Fig. 2 & 3 a section and plan of the spiral strip before coiling showing the
curvaturos necessary to insure perfectly continuous tube whon coiled into a spiral form
and also showing the diagonal corrugations on the strip.
Fig. 4, 5 & 6 show cross sections of the fabric together with the underlying flap.
Fig. 7 illustrates the method of coiling the fabric.
Fig. 8 the form of rim preferably used, whilst
Fig. 9 is an elevation of the inflated tyre when placed upon its rim.
The inner or underlying flap A Figs. 4, 5 & 6 is preferably vulcanized, cemented
or otherwise attached to the outer strip B which preferably varies in thickness being
thicker in that part of the spiral which becomes the trend of the tyre, may be formed
in one piece with B.
Fig. 4 shows the strip section in the position of the tread and Fig. 6 the section
showing the diagonal corrugation C appearing upon Fig. 2. Fig. 5 shows the strip
section half way between theso.
The letter in Figs. 1, 2, 3, 6 & 8 shows the cross corrugation on the strip
which falls when coiled into a continuous groove in the rim of which a section is
shown.
The letter B in Figs. 4, 5, 6 shows various sections of the spiral tapo which are
preferably made thicker at such parts as lie towards the tread of the tyre.
The lotter A. in Figs. 4, 5, 6, shows the underlying flap which preferably is of even
thickness. This flap when the tyre is blown up without an inner tube will occlude the
air rendering an inner tube unnecessary if proferred.
I am aware of Thompsons Patent 10990 of 1815 and any of the forms of inner tube
shown therein may be used in my invention.
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 use of a spiral tube of suitable section and either with or without an inner
tube provided with a suitable corrugation or corrugations, indentation or indentations,
projection or projections such as will when coiled spirally lie and lock in or on a
circular rim of metal or other material suitably formed, thereby enabling gaseous or
atmospheric pressure to be maintained therein."
(2) A strip used in connection with such a spiral, such as when coiled into spiral
form, its form is such that it falls continuously or contorminously into a groove or
grooves, corrugation or corrugations formed in the rim which when the spiral strip is
filled with air either uudor pressure or otherwise, provided it is suitably occluded from
the surrounding atmosphere, will remain upon the rim.
(3) In such a strip when laid flat the use of a diagonal corrugation or corrugations
either straight or curvod or of any other suitable shape so as when coiled into a circular
spiral will when internally supplied with air either in an inner tube or any occluded
form bring the corrugation or corrugations or groove or grooves into intimate contact,
thus retaining the tyre upon the rim.
(4) The use of the flap of such spiral tape in such manner when coiled as to occlude
the air in like manner by valvular action. "
(5) The particular form of fabric shown in Sheet 1 of the drawings annexed
hereto.
Dated this ish day of Wah1007
W. F. TAYLOR.