An Improved Method of and Means for Securing Inflatable Tyres, in Part or in Whole, on Velocipede and other Vehicle Wheels.
Year: 1891

page_text: Date of Application, 30th Sept., 1891
Complete Specification Left, 22nd June, 1892-Accepted, 23rd July, 1892
PROVISIONAL SPECIFICATION.
An Improved Method of and Means for Securing Inflatable Tyres, in
Part or in Whole, on Velocipede and other Vehicle Wheels.
THOMAS WILSON ROBERTSON 184 Grosvernor Street Belfast Ireland Mechanical
Engineer do hereby declare the nature of this invention to be as follows:-
It is the adition of two clips preferably grooved one at or near each side of any
ordinary sectioned rim, these clips are made in sections or lengths and are hinged
to the rim in such a manner that when laid back the edge of the tyre can be put
into place. The clips are then foarced into position which binds and holds the
edges of the tyre secure to the rim. It is advantageous to enlarge the edges of the
tyre to further prevent the posibility of the tyre edge slipping past the clip. This
invention is also suitable for attaching a part or portion of other inflatable tyres to
effect a speedy and substancial means for removing and replacing the air chamber.
Dated this 29th day of September 1891.
THOMAS WILSON ROBERTSON.
COMPLETE SPECIFICATION.
An Improved Method of and Means for Securing Inflatable Tyres, in
Part or in Whole, on Velocipede and other Vehicle Wheels.
1, THOMAS WILSON ROBERTSON, of 184 Grosvernor Street, Belfast, Ireland,
Mechanical 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 :-
My invention relates to a method of and means for securing tyres upon the
wheels of velocipedes and other vehicles, and is intended chiefly for securing
pneumatic or inflatable tyres to wheels. My said invention may be used for
securing a portion only of a tyre, the remaining portion being secured in any other
suitable manner.
The chief feature of my said invention relates to the provision of clips at or
near each or either side or edge of a wheel rim of any ordinary section for the
purpose of holding the edge or edges of the tyre. The said clips are preferably
grooved and are hinged or pivoted to the rim in such a manner that they can be
turned backwards to allow of the edges of the tyre, which are preferably thickened
being inserted between the said clips and the rim. When the edges of the tyre are
so inserted, the clips may be closed thereon, in which position they will firmly bind
the edges of the tyre to the rim.
The rim is provided with suitable lugs to which the said clips are pivoted or
hinged. The said lugs are fixed to the rim by screwing or brazing or in any other
suitable manner.
In the accompanying drawings I have shewn by way of example how my said
invention may be conveniently carried into practice.
Figure 1 is a section of a tyre and rim furnished with clips according to my
invention, the clip on one side being shewn closed, or in the position in which it
binds the edge of the tyre to the rim, and that on the other side being shewn
turned back to allow the edge of the tyre to be inserted between it and the rim.
Figure 2 is a side elevation of a wheel rim fitted with clips according to my
invention.
Figure 3 is a view of one of the clips detached.
A
the im
A1 A1 Is coured et intervale to the edges of the rim to

page_text: which lugs the clips B are pivoted by pins C. The said clips B are furnished with
lugs B' through which the pins C pass. D is the cover or tread portion of a
pneumatic or air inflated tyre the edges D¹ thereof being thickened so as to be
more securely held by the clips B. When the clips are closed so as to secure the
edge of the tyre to the rim, their edges B' come against the rim as shewn in
Figure 1 aud prevent them from being opened by any pull on the cover D. The
said clips may be arranged close together along each edge of the rim or they may
be placed at short intervals. In the former case each lug which is secured to the
rim will serve as the bearing to pivot or hinge the adjacent ends of two clips as
shown in Figure 2.
To form the lugs I may screw or otherwise secure suitably shaped pieces of
metal into the rim at proper distances apart to form bearings for the pivoted clips
to turn on. The said clips may be made of any convenient length. I prefer to use
on ordinary sized wheels, clips about four or five inches long.
Although I have shown in the drawings a rim fitted with an inflatable tyre and
clips securing the cover of the said tyre to the rim, it is obvious that by forming
suitable winglike extensions upon a cushion tyre for example, such extensions can
be secured to the rim by means of the above described clips in a similar manner to
the pneumatic tyre cover herein shewn.
My improved method of fixing the tyre on the wheel may be used in combination
with other methods of fastening the tyre. For instance my method of fastening
may be applied to a portion only of the tyre near the valve for example where it
would prove very advantageous in facilitating repairs.
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. Securing a tyre either wholly or partially to the rim of a velocipede wheel by
means of grooved clips which are hinged or pivoted on lugs attached to the said
rim, substantially as described.
2. A wheel for a velocipede or other vehicle the rim of which is provided with
lugs secured thereto and having grooved clips hinged or pivoted to the said lugs.
substantially as, and for the purpose, specified.
Deted this 92nd day of Tume 1009.
AMAA
THOMAS W. ROBERTSON.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.