Improvements in or relating to Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 15th Mar., 1893-Accepted, 17th June, 1893
COMPLETE SPECIFICATION.
Improvements in or relating to Pneumatic Tyres.
I, SYDNEY LEE of 9 Furnival Street, in the County of Middlesex, Auctioneer,
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 pneumatic tyres especially for cycle and other wheels
and relates more particularly to a cover suitable for containing the rubber tube
which is to be charged with the compressed air. Any suitable means may be
adopted for securing these tyres or covers to the rim of the wheel as the securing
forms no part of the present invention. What I will call the foundation may be
made of a simple piece of canvas or similar material which may be solutioned or
dipped in solution of indiarubber or the like so as to render it substantially water-
proof. Upon this I place a layer of indiarubber and solution, vulcanize or otherwise
secure the two together. Upon the outside of the rubber, at the tread portion I
place a strip of leather and connect this with the foundation by stitching, rivetting,
solutioning or the like, but conveniently by stitching and rivetting. I may also
place a strip of canvas or rubber on the inner side of the foundation through which
the stitches and rivets would pass and upon this again another strip of canvas,
indiarubber or the like so as to cover both stitches and rivets, and make the cover
or tyre properly waterproof; all the canvas may be waterproofed and the various
layers may be solutioned, vulcanized or otherwise securely fastened together.
The accompanying drawing represents a section of a cover as above described,
and in this drawing A represents the canvas or equivalent foundation, B the rubber
covering which may be of the same thickness throughout or thickened towards the
centre if preferred. C the leather strip, D the first strip of canvas on the inner
side of the foundation A, E the lines of stitches through the leather (in which
channels or grooves may be cut to receive and protect them), rubber, canvas
foundation and canvas strip, F the rivet which may be placed as shown with the
head on the outside and a washer upon the inside over which the end of the rivet is
turned or rivetted or the position of the rivet may be the reverse of this; the rivet
may if desired be sunk into the leather so as to lie below the outer surface thereof.
G represents the innermost strip of canvas rubber or the like. The foregoing
description will explain how these parts are connected together. I prefer to make
them very thin for the sake of lightness and resilience the leather strip C serving
to prevent side slipping to which tyres of this description are peculiarly liable over
greasy surfaces, and also serving to protect the tyre or cover from injury.
If desired a small thin piece of metal or equivalent material may be placed over
the inner end of each rivet to prevent the possibility of its being forced inwards or
wearing the covering strip G or the inner air tube.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the saine is to be performed, I wish it to be understood
that I am aware that leather has before now been used to prevent side slipping and
that I make no claim to the use of leather for that purpose. For example, Sparrow
in his Specification No. 3521 of 1878 described the use of leather for this purpose.
I am also aware of previous Specifications in which it is proposed to secure a
leather or canvas band or strip to the face of a pneumatic tyre cover by the
inflation of the tyre without direct fastenings such as are here employed. So far
as I have been able to ascertain also where leather has hitherto been employed it
has always been as an addition to a complete tyre cover or tyre and never as an
integral portion thereof formed or connected with it in the course of manufacturing
the cover.
.

page_text: 1. A cover for a pneumatic tyre consisting of a canvas foundation a rubber
coating or covering and a leather strip secured directly thereto during the process
of manufacturing the cover by stitching rivetting or the like substantially as
described and illustrated in the accompanying drawing.
2. A cover for a pneumatic tyre consisting of a canvas foundation A a rubber
covering B an outer leather strip C an inner canvas strip D means such as the
stitches or rivets E or F for connecting the leather to the cover and an inner
coating or covering of canvas rubber or the like such as G substantially as described
and illustrated in the accompanying drawing.
3. A. cover for a pneumatic tyre having a leather strip permanently secured to it
by stitching rivetting or the like substantially as described.
Dated this Fourteenth day of March 1893.
SYDNEY LEE.