Improvements in and relating to Pneumatic Tyres for Cycles.
Year: 1894

page_text: Date of Application, 28th Feb., 1894
Complete Specification Left, 18th May, 1894-Accepted, 23rd June. 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to Pneumatic Tyres for Cycles.
We, WILLIAM ALBERT DIXON GRAHAM, residing in Market Street Brooke
Owen Sound in the County of Grey and Province of Ontario, Student, and
ARTHUR PRATT JAMESON, Lot 37 Concession 5, Township of South Dumfries in
the County of Brant and Province of Ontario, Student, do hereby declare the.
nature of this invention to be as follows:--
The object of this invention is to devise a pneumatic tire for cycles of all
descriptions, which will be comprised of an air tube, and an outer covering
enclosing the air tube, and to provide the adjacent meeting edges of the outer
covering with an interlocking device, by means of which the said meeting edges
can be locked together to form a complete covering for the air tube, and to provide
that part of the outer covering which will be adjacent to the rim with a bead or
flange adapted to enter a channel formed in the middle part of the rim : the whole
device being constructed and arranged as hereinafter set forth and more particularly
pointed out in the claims.
In the drawings :
Fig. 1 is a sectional view of the device.
Fig. 2 is a perspective view of a section of the outer covering.
Fig. 3 is a perspective view of a section of the rim.
Like letters of reference refer to like parts throughout the Specification and
drawings.
The invention consists of a rim A having a concaved seat for the tire and a
continuous chaunel B formed in the middle of the rim. The tire consists of an
air tube C of any ordinary formation or style, enclosed by an outer covering D.
Each of the adjacent meeting edges d-d of the outer covering D is provided with
a locking member e-e respectively arranged on opposite sides of the outer
covering, in order that when the said covering is wrapped around the air tube into
the position indicated in Fig. 1, the said members e-e' will interlock and hold
together the said adjacent meeting edges. The adjacent meeting edge d of the
outer covering D, which is intended to be contiguous to the rim. A, is provided
with a bead or flange F, adapted to enter the channel B in the rim A, and prevent
the tire being displaced sideways from the said rim when the tire is partially or
totally disinflated. By means of this construction the outer covering can be
secured to the rim, and the air tube securely locked within the outer covering,
without addition either to the weight of the wheel or cycle or to the cost of or
labor involved in the manufacture of the cycle.
It will be noticed by reference to the drawings that each locking member is
sufficiently removed from its respective edge of the outer covering to permit the
formation of a flange or strip between itself and the said edge. The strip between
the locking member e¹ and its meeting edge d' is borne against the inner side of
the outer covering by the pressure of the air tube C when inflated, and the strip
between the locking member e and the edge d is pressed against the outer side of
the outer covering by the rim A. The pressure on these two strips is sufficient
to hold the adjacent meeting edges against their respective parts of the outer
We do not
covering, and enable the locking members e-el to securely interlock.
wish to confine ourselves to any particular style of locking member for securing
together the adjacent meeting edges, nor do we wish to confine ourselves
exclusively to employ the bead or flange F on the outer covering D, nor the
channel B in the rim A to prevent the lateral displacement of the tire from the

page_text: rim, as we may if we so desire it employ any convenient style of locking member
to secure together the adjacent meeting edges, and any convenient means for
securing the tire to the rim.
Dand shin 17th dow of Wh1904
GEORGE BARKER,
Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to Pneumatic Tyres for Cycles.
We, WILLIAM ALBERT DIXON GRAHAM, residing in Market Street Brooke
Owen Sound in the County of Grey and Province of Ontario, Student, and
ARTHUR PRATT JAMESON, Lot 37 Concession 5 Township of South Dumfries
in the County of Brant and Province of Ontario Student do hereby declare the
nature of our said invention and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
The object of this invention is to devise a pneumatic tyre for cycles of all
descriptions, which will be comprised of an air tube, and an outer covering enclosing
the air tube, and to provide the adjacent meeting edges of the outer covering with
an interlocking device, by means of which the said meeting edges can be locked
together to form a complete covering for the air tube, and to provide that part of
the outer covering which will be adjacent to the rim with a bead or flange adapted
to enter a channel formed in the middle part of the rim the whole device being
constructed and arranged as herein before set forth and more particularly pointed
out in the claims.
In the drawings (filed with our Provisional Specification):
Fig. 1 is a sectional view of the device.
Fig. 2 is a perspective view of a section of the outer covering.
Fig. 3 is a perspective view of a section of the rim.
Like letters of reference refer to like parts throughout the Specification and
drawings.
The invention consists of a rim A having a concaved seat for the tyre and a
continuous channel B formed in the middle of the rim. The tyre consists of an
air tube C of any ordinary formation or style, enclosed by an outer covering D.
Each of the adjacent meeting edges d-d' of the outer covering D is provided with
a locking member e-el respectively arranged on opposite sides of the outer
covering, in order that when the said covering is wrapped around the air tube into
the position indicated in Fig. 1, the said members ee will interlock and hold
together the said adjacent meeting edges. The adjacent meeting edge of the
outer covering D, which is intended to be contiguous to the rim A, is provided
with a bead or flange F, adapted to enter the channel B in the rim A, and prevent
the tyre being displaced sideways from the said rim when the tyre is partially or
totally disinflated. By means of this construction the outer covering can be
secured to the rim, and the air tube securely locked within the outer covering,
without addition either to the weight of the wheel or cycle or to the cost of or
labor involved in the manufacture of the cycle.
It will be noticed by reference to the drawings that each locking member is
sufficiently removed from its respective edge of the outer covering to permit the
formation of a flange or strip between itself and the said edge. The strip between
the locking member e¹ and its meeting edge d' is borne against the inner side of
the outer covering by the pressure of the air tube C when inflated, and the strip
between the locking member e and the edge d is pressed against the outer side of
the outer covering by the rim A. The pressure on these two strips is sufficient
to hold the adjacent meeting edges against their respective parts of the outer
covering, and enable the locking-members e-e¹ to securely interlock. We do not
wish to confine ourselves to any particular style of locking member for securing
0

page_text: together the adjacent meeting edges, nor do we wish to confine ourselves
exclusively to employ the bead or flange F on the outer covering D, nor the
channel B in the rim A to prevent the lateral displacement of the tyre from the
rim, as we may if we so desire it employ any convenient style of locking member
to secure together the adjacent meeting edges, and any convenient means for
securing the tyre to the rim.
Having now particularly described and ascertained the nature of our said
invention, we declare that what we claim is :-
:-
1. The improvements in cycles hereinbefore described and illustrated in Fig. 2
of the accompanying drawings.
2. The improvements in cycles hereinbefore described and illustrated in Fig. 3
of the accompanying drawings.
3. The improvements in cycles herein before described and illustrated in Fig. 1
of the accompanying drawings.
4. In a tyre for cycles the combination of the rim, the air tube, an outer covering
for the air tube, a locking member formed along each of the adjacent meeting edges
of the outer covering, and adapted to interlock with each other, and means for
securing the tyre to the rim, substantially as described.
5. In a tyre for cycles the combination of the rim, the air tube, an outer
covering for the air tube, a locking member formed parallel with each of the
adjacent meeting edges of the outer covering, a strip of material between each
locking member and its respective edge, said locking members adapted to interlock,
and means for securing the tyre to the rim, substantially as described.
6. In a tyre for cycles the combination of the rim, a continuous channel formed
in the middle portion of the rim, the air tube, an outer covering for the air tube,
a locking member formed along each of the adjacent meeting edges of the outer
covering and adapted to interlock, and a flange formed on the outer side of the
outer covering adapted to enter the recess in the rim, substantially as described.
7. In a tyre for cycles the combination of the rim, a continuous channel formed
in the rim, the tyre comprised of an air tube, an outer covering for the air tube, a
locking member, formed parallel with each of the adjacent meeting edges of the
outer covering, a strip of material between each of said locking members and its
respective edge, said locking members adapted to interlock and securely hold
together the adjacent meeting edges, and a flange formed on the outer side of the
outer covering, adapted to enter the continuous channel in the rim, substantially
as described.
Dated 17th May 1894.
GEO. BARKER,
77, Colmore Row, Birmingham, Agent for Applicants.