Improvements relating to Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 7th Oct., 1893
Complete Specification Left, 6th July, 1894-Accepted, 1st Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements relating to Pneumatic Tyres.
I, CHARLES KINGSTON WELCH, of The Hollies Eaton Road, Coventry, in
the County of Warwick, Engineer, do hereby declare the nature of this invention
to be as follows:-
My invention has reference to improvements relating to pneumatic tyres.
The object of my said invention is to provide an improved retaining-device for
the ends of the tape or the like which is commonly employed in the central groove
of the rim of velocipede wheels to cover the ends of the spokes which project
thereinto, the object of the tape being to prevent the said ends of the spokes from
injuring the air-tube of the tyre.
Hitherto it has been the custom to connect the ends of the tape to each other by
cement, or by solutioning but this method is unsatisfactory inasmuch as the joint.
thus produced cannot be unmade and re-made except with considerable trouble.
According to this invention I obviate the disadvantages above referred to by the
employment of my said improved retaining-device, which may consist for example
of a piece of metal formed to lie snugly in the said central groove or on the rim
and perforated so that the valve may pass therethrough and also slotted at
opposite ends. Through these slots the ends of the tape or the like are passed;
the friction between the tape or the like and the retaining-device prevents the
slackening of the tape and the said ends are led over or under the main part of the
tape and, if desired, either or both can be cemented or otherwise fastened thereto.
I sometimes provide the said ends with a ring or clasp to embrace the principal
portion of the tape. But it will in many cases be found sufficient simply to pass
the said ends under the main part of the tape; in such a case I preferably form a
loop or eye in each said end, to facilitate its adjustment by means of a hooked or
other tool. As the valve passes through the hole in the retaining-device the tape
is prevented from shifting upon the rim.
Obviously two or more slots, instead of a single slot can be made in each end of
the said retaining-device for the purposes specified.
In some cases I construct the washer or other portion of the air valve to form
the retaining-device instead of using a separate retaining device as above described.
When it is required to "spoke" wheels fitted with my said improved retaining
device, the tape can be removed and replaced without trouble, whereas formerly
the joint of the tape had to be broken and re-made; this operation involved
considerable trouble, which I am now enabled to obviate.
Dated this 7th day of October 1893.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Pneumatic Tyres.
I, CHARLES KINGSTON WELCH, of The Hollies, Eaton Road, Coventry in
the County of Warwick, Engineer, do hereby declare the nature of this invention
and in what manner the same is to be perforined to be particularly described and
ascertained in and by the following statement:-
This invention has reference to improvements relating to pneumatic tyres.

page_text: The object of my said invention is to provide
an improved retaining-device for
the ends of the tape or the like which is commonly placed on the outside of the
rim of velocipedes and other wheels and in the central groove of the rim to cover
the ends of the spokes which project thereinto, the tape preventing the said ends
of the spokes from injuring the air-tube of the tyre.
Hitherto it has been the custom to connect the ends of the tape to each other by
cement or by solutioning but this method is unsatisfactory inasmuch as the joint
thus produced cannot be unmade and re-made except with considerable trouble.
According to this invention I construct a retaining-device of a piece of metal
formed to lie snugly in the rim or in the central groove thereof. The piece of
metal is perforated so that the valve may pass therethrough thus avoiding the
necessity of making a hole in the tape and is also provided with slots at opposite
ends, through which slots the ends of the tape or the like are passed.
In the accompanying drawings
Figure 1 is a plan,
Figure 2 is a side elevation, and
Figure 3 is an end elevation of one form of my improved retaining device, with
the ends of the tape passed through the slots.
Figure 4 is a transverse section showing the retaining device and tape in position
on the rim of a wheel.
Figure 5 is an end view, showing a modification wherein the valve-washer is used
as a tape-retaining device.
Figure 6 is a side view of the washer shewn in Figure 5.
Figure 7 is a plan of a retaining device having two slots at each end.
Like letters of reference denote similar parts in all the drawings.
The retaining, device as shewn consists of a piece of metal A curved to fit the
central groove of the rim and having a hole A¹ for the inflating valve of the tyre
to pass through. The ends of the tape or the like C are passed through the
slots A, A in the ends of the retaining device the friction between the said tape
or the like and the retaining-device and between the said tape and the rim pre-
venting the slackening of the tape. The said ends are led over or under the main
part of the tape, and if desired, either or both can be cemented or otherwise
fastened thereto. I preferably form a loop or eye in each end of the tape as shewn
at C' to facilitate its adjustment by means of a hooked or other tool.
In Figure 4 the retaining device A is shown in position in the central groove of
an ordinary "Dunlop" rim B.
I
We sometimes provide the ends of the tape with a ring or clasp to embrace the
principal portion of the tape. As the inflating valve passes through the hole A
in the retaining-device the tape is prevented from shifting upon the rim.
preferably bring the slots A', A2 as near together as possible so that the plate can
be made short enough to be entirely covered by the valve washer as shewn in
Figure 2 which shews an ordinary valve D in position, D' being the valve washer.
In the drawing these slots merge into the central hole, but I may obviously make
the device with the central hole and slots not in connection. I also make the
retaining device flat or of any other form suited to the shape of the rim with which
it is to be used.
In Figures 5 and 6 a tape retaining device is shewn which is formed of the valve
washer D¹ itself by simply making a slot D2 in each end of eaid washer, I thereby
This however can only be
dispense with a separate plate for the retaining device.
done when a valve is used wherein the washer is not permanently attached to the
air-tube of the tyre which is the case with the valve shewn in Figures 5 and 6.
I sometimes make a retaining device according to this invention with two or
Such a device
more slots at each end thereof instead of only one slot at each end.
is shewn in Figure 7 where A2, A³ are the two slots. The tape C is passed
through the said slots A2, A³ in succession being thereby retained very securely in
place.
When it is required to "spoke" wheels fitted with said improved retaining

page_text: device, the tape can be removed and replaced without trouble, whereas formerly
the joint of the tape had to be broken and re-made; this operation involved
considerable trouble, which I am now enabled to obviate in a neat and mechanical
manner.
Moreover by passing the valve stem through the plate I dispense with the
necessity for making a hole in the tape which is objectionable since the edges of
the hole are liable to fray and weaken and ultimately destroy the tape.
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. The combination with the rim of a wheel and with the tape for covering the
heads of the spokes, of a plate provided with slots through which the ends of the
tape are passed, and secured, substantially as, and for the purpose, set forth.
2. The combination with the rim of a wheel and with the tape for covering
the heads of the spokes, of a plate provided with slots through which the ends of
the tape are passed and secured and with a hole for a valve stem to pass through,
substantially as, and for the purpose, set forth.
3. The combination with the rim of a wheel on which a pneumatic tyre is fitted
and with the tape for covering the heads of the spokes, of a plate adapted to serve
as a washer for the air valve of the tyre and having slots through which the ends
of the tape are passed and secured, substantially as, and for the purpose, set forth.
4. An improved tape retaining device constructed substantially as described with
reference to the accompanying drawings.
Daucu
του το
C. KINGSTON WELCH.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.