Improvements relating to Pneumatic Tyres for the Wheels of Cycles and other Vehicles.
Year: 1896

page_text: Date of Application, 18th Feb., 1896
Complete Specification Left, 18th Dec., 1396-Accepted, 30th Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements relating to Pneumatic Tyres for the Wheels of
Cycles and other Vehicles.
We, HARVEY DU CROS, Junior, of Merridale, Selly Park, Birmingham, and
ARTHUR DU CROS, of Radford House, Coventry, both in the County of
Warwick, Gentlemen, do hereby declare the nature of this invention to be as
follows:-
This invention relates to novel means for connecting together the ends of the
inextensible wires or cores used in the edges of the cover of a pneumatic tyre for
holding the tyre in place on the rim.
According to one method we provide a nipple and secure it to one end of the
wire or core by screwing, brazing or otherwise, and we form in the said nipple
about midway of its length a hole to receive the other end of the wire or core
which is bent at a suitable angle and passed through the said hole in the nipple and
through corresponding holes in the edge of the tyre cover and in the rim and is
then secured by a nut screwed on the end of it. A portion of the nipple is cut
away to allow the end of the wire or core to be readily passed through the hole
as aforesaid, and to allow the wire to assume a central position in the nipple so as
to be in a direct line with the other end of the wire or core, and to make a neat
joint. In some instances the end of the wire is not passed through the rim.
According to a modification of this method of fastening we bend both ends of
the wire or core and we flatten the adjacent faces of the bent portions of the wire
to make each of the ends semicircular in section so that when the said portions.are
brought together and screw-threaded they can be secured by a nut screwed upon
them or by a ring or clamp or the like. The bent portions may be passed through
a hole in the rim and be secured to the rim by the said nut. We may combine
with this method of fastening, a nipple similar to that above described.
Dated this 18th day of February 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.
Improvements relating to Pneumatic Tyres for the Wheels of
Cycles and other Vehicles.
We, HARVEY DU CROS, Junior, of Merridale, Selly Park, Birmingham, and
ARTHUR DU CROS, of Radford House, Coventry, both in the County of
Warwick, Gentlemen, do hereby declare. the nature of this invention and in what
manner the same is to be performed, to tbe particularly described and ascertained
n and by the following statement :-
This invention relates to novel: methods of connecting: together the ends of the

page_text: inextensible wires or cores used in the edges of the cover of a pneumatic tyre for
holding the tyre in place on the rim.
Referring to the accompanying drawings which illustrate the said invention
Figure 1 is a perspective view of a tubular nipple for connecting the ends of the
wires.
Figure 2 is a plan of said nipple.
Figure 3 is a longitudinal section through a portion of a wheel rim and tyre
cover and shows the manner of connecting the ends of the wire or core.
Figure 4 is a perspective view of a portion of the rim and tyre in place
thereon and shows the projecting end of the wire or core and the nut for
retaining it.
Figure 5 is a view similar to Figure 3 but illustrating a modification,
Figure 6 is a similar view illustrating a further modification, and
Figure 7. is a section of the wire or core and end view of the socket in which the
wire rests.
According to one method we provide a tubular nipple A Figures 1, 2 and 3 and
form in it a longitudinal groove a extending from one end thereof to about midway
of its length, and at the inner end of the said groove we form through the nipple
a transverse hole a'. We secure the said nipple to one end 6 of the wire or core
by screwing, brazing or otherwise and we bend the other end of the wire or core
and pass the bent end through the said hole a' in the nipple and through corre-
sponding holes in the edge of the tyre cover C and rim D and secure it by a nut E
screwed thereon as shown by Figures 3 and 4. The groove a in the nipple allows
that part of the end 6 of the wire within the nipple to assume such a position as to
be co-axial or in a direct line with the other end b of the wire or core.
construction ensures a neat joint. In some instances the rim instead of being
pierced is formed with a recess to receive the nut E which is screwed on the end.
of the wire outside the tyre but inside the rim.
This
According to a modification of this method of fastening we bend both ends b, b
of the wire or core and we flatten the contiguous faces of the bent portions of the
wire to make each of the said portions semicircular in section so that when they.
are brought together and screw-threaded they can be secured by a nut E screwed
upon them as shown in Figure 5 or by a ring or clamp or the like. The bent
portions are passed through a hole in the cover C and through another hole in the
rim D and are secured to the rim by the nut E; or the said nut is arranged inside
the rim but outside the cover as above described. We may use with this method
of fastening, a half nipple or socket A as shown in Figures 6 and 7 to assist in
keeping the ends rigidly in line.
.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a pneumatic tyre, securing the ends of the wire ring or core by means of
a grooved and perforated nipple and a nut substantially as described with reference
to Figures 1 to 4 of the accompanying drawings.
2. The modification of such method of securing the ends of the wire or core
wherein both of the said ends are bent and flattened on their contiguous faces,
and are secured by a nut, with or without a grooved nipple substantially..as
described with reference to Figure 5 or to Figures 6 and 7 of the accompanying
drawings.
i
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.