Improvements in and connected with Pneumatic Tyres for Cycles and other Vehicles.
Year: 1893

page_text: Date of Application, 16th Nov., 1893
Complete Specification Left, 16th Aug., 1894-Accepter, 22rd Sept.,
1894
PROVISIONAL SPECIFICATION.
Improvements in and connected with Pneumatic Tyres for Cycles
and other Vehicles.
I, ALEXANDER BLACK, of 40 Cleghorn Street, Dundee, in the County of
Forfar, Scotland, Tyre Manufacturer, do hereby declare the nature of this
invention to be as follows
:-
This invention comprises various improvements in methods of securing the
covers of pneumatic elastic tyres to the rims of wheels, for cycles and other
vehicles.
In one modification each side of the cover is held firmly in contact with the rim
by means of two wire bands, to which such cover is attached, these bands being
lapped round the external surface of the rim. At each joint, the extremities of
the band overlap, the one extremity terminating in a guiding loop, or barrel
through which the other extremity is passed, such other extremity terminating in
a screw, which passes through a plain hole in a bead or stop fastened near the end
of the other extremity. Upon the screwed end of the wire is an elongated nut
which forms the termination of a subsidiary wire, such nut, when the band is taut,
bearing firmly against the aforesaid stop. These bands are totally within the
cases of the cover, only the wires which control the nuts protruding.
In a second modification, a bead or stop is fastened near to each end of the
extremities of the bands, such extremities terminating in a male and female joint,
that is to say the one end of the band passes into a receptacle on the other.
A screw passes through suitable holes in the aforesaid beads, by the rotation of
which the band is tightened or loosened. The ends of these screws are the only
portions which protrude from the cases of the cover.
The screws are formed on the wires in a manner to maintain their strength.
For example, where the screw is to be, a wire is closely wound round the band and
brazed or otherwise securely fastened thereto, the screw thread being then formed
on this enlarged diameter. For quickness of adjustment the screw may have two
or more threads.
In a third modification, the extremities of each band overlap when it is taut,
such extremities being coupled together by a link. When the band is loose and
therefore of maximum diameter the extremities are apart by an amount equal to
the length of the link. These bands and links are wholly within the cases of the
cover, a wire jointed to one end of each link protruding and permitting of its
adjustment.
Dated this 13th day of November 1893
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.

page_text: Improvements in and connected with Pneumatic Tyres for Cycles
and other Vehicles.
I, ALEXANDER BLACK, Sometime of 40 Cleghorn Street, Dundee, in the
County of Forfar, but now of 59 North Frederick Street, Glasgow, in the County
of Lanark, Scotland, Tyre Manufacturer, 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 comprises various improvements in methods of securing the
covers of pneumatic elastic tyres to the rims of wheels, for cycles and other
vehicles.
In order that my invention may be properly understood and readily carried into
effect, I have hereunto. appended two explanatory sheets of drawings, in the
several figures of which corresponding parts are marked with the same numerals of
reference.
Figures 1. to 5. (Sheet 1.) show various methods of fastening the ends of double
or single coils of wire together.
Figures 6. and 7. (Sheet 2.) illustrate how such couplings with their wire bands
may be applied to secure tyres to their rims.
In one modification each side of the cover is held firmly in contact with the rim
by means of two wire bands, to which such cover is attached, these bands being
lapped round the external surface of the rim, such a wire band and its coupling
being illustrated by Figures 1. and 2. (Sheet 1.). At each joint the extremities of
the band overlap, the one extremity terminating in a guiding loop, or barrel 10.
through which the other extremity 11. is passed, such other extremity terminating
in a screw 12, which passes through a plain hole 13. in a bead or stop 14. fastened
near the end of the other extremity. Upon the screwed end of the wire is an
elongated nut 15. which forms the termination of a subsidiary or controlling
wire 16, such nut 15, when the band is taut, bearing firmly against the aforesaid
stop 14. These bands are totally within the case of the cover, only the wires 16.
which control the nuts protruding.
In a second modification as illustrated by Figure 3. (Sheet 1.), a bead or stop 17.
is fastened near to each end of the extremities of the bands 18, such extremities
terminating in a male and female joint 19. and 20, that is to say the one end of the
band passes into a receptacle on the other. A screw 21. passes through suitable
holes 22. in the aforesaid beads, by the rotation of which the screw being right
and left handed-the band is tightened or loosened. The ends or handles 16. of
these screws are the only portions which protrude from the cases of the cover, as
shewn in Figures 6. and 7. (Sheet 2.). Figures 4. and 5. illustrate two other
modifications of the aforesaid adjustable coupling. The screws are formed on the
wires in a manner to maintain their strength. For example, where the screw is to
be, a wire is closely wound round the band and brazed or otherwise securely
fastened thereto, the screw thread being then formed on this enlarged diameter.
For quickness of adjustment, the screw may have two or more threads.
Access to the air tube is obtained in the following manner :-After such air
tube is sufficiently deflated, the screw 21. is rotated by means of the handle 16.
until the beads, stops or nuts 17. are sufficiently far apart, that is to say until the
wire band is sufficiently large in diameter to allow of the cover being passed over
the rim and the air tube exposed.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I wish it to be particularly
understood that I do not limit myself to the precise details of construction

page_text: hereinbefore described and illustrated on the annexed drawings, but that I holdt
myself free to make such changes and alterations as conform with the disposition
and scope of my invention. I also wish it to be understood that I am aware of
right and left handed screws and nuts having been used before to couple together
wire bands for the purpose of securing cycle tyres to rims, and I lay no claim at
large to the use of such but, I declare that what I claim is :-
(1.) The mode of attaching pneumatic tyres to their rims by means of wire
bands coupled together by screws and nuts, such bands and couplings being wholly
within their respective cases of the covers; the subsidiary wires or handles 16.
only protruding, substantially as described.
(2.) The mode of attaching a pneumatic tyre to its rim, substantially as herein-
before described and illustrated by Figures 1. 2. and 7. the combination consisting
of a wheel rim, a cover provided with bands on each side of same, a screw 12,
stop 14, nut 15, and a subsidiary or controlling wire 16.
(3.) The mode of attaching pneumatic tyre to its rim, substantially as herein
before described and illustrated by Figures 3. and 7, the combination consisting of
a wheel rim, a cover provided with one band on each side, a right and left hand
screw, a nut near each extremity of the band, a male and female joint and
controlling wire which protrudes from the case of the cover.
(4.) The mode of attaching a pneumatic tyre to its rim, substantially as herein-
before described and illustrated by Figures 4. and 7, the combination consisting of
a wheel rim, a cover provided with one band on each side, a right and left hand
screw, a nut near each extremity of the band, a tapered joint and a controlling
wire which protrudes from the case of the cover.
(5.) The mode of attaching a pneumatic tyre to its rim, substantially as herein-
before described and illustrated by Figures 5. and 6, the combination consisting of
a wheel rim, a cover provided with one band on each side, a right and left hand
screw, a nut near each extremity of the band, and a controlling wire which
protrudes from the case of the cover.
(6.) The method of actuating a screw or nut concealed within the case of the
cover by a protruding wire or handle as described.
(7.) The method of constructing a screw upon a wire band as hereinbefore
described.
Dated this 14th day of August 1894.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.