Improvements in Attaching Pneumatic Tyres to the Rims of Wheels.
Year: 1896

page_text: Date of Application, 1st July, 1896
Complete Specification Left, 3rd May, 1897-Accepted, 5th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Attaching Pneumatic Tyres to the Rims of
Wheels.
We, WILLIAM NASCH and ISIDOR NASCH, both of 251, Whitechapel Road, in the
County of London, Engineers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the attachment of pneumatic tyres to the rims of wheels
and has for its object to provide more simple and efficient means than hitherto for
attaching the tyres to, and removing them from, the rims and also to provide a safer
seating for the inner or air tube.
According to our invention we provide a rim of suitable section, but preferably
flat, and to the said rim we hinge a number of clips having thickened or grooved
outer edges, that is to say, having a rib or projection or groove on the underside of
their free ends.
We also provide the outer covering with lateral ridges or grooves on its inner
surface the said ridges or grooves being designed when the air tube, which may be
of any suitable construction, is inflated to engage with the ridges or projections on
the underside of the clips which are pressed against the rim in such a manner that the
tyre is rigidly secured in position.
We sometimes form teeth on the underside of the free ends of the clips instead of
the ridge or groove and in this case we dispense with the ridges or grooves on the
outer covering of the tyre.
With this construction of tyre and rim it will be obvious that the tyro is easily
attached to the rim as, the cover being quite flexible, it is only necessary to tuck its
edges under the clips and then to inflate the air tube. To remove the tyro the air tube
is deflated and the cover-can then be easily pulled off.
Another advantage of our invention is that the nipples or heads of the spokes are
covered by the clips so that they cannot therefore injure the air tube.
Dated the 1st day of July 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Attaching Pneumatic Tyres to the Rims of
Wheels.
We, WILLIAM NASCH, and ISIDOR NASCH, both of 251, Whitechapel Road, in the
County of London, Engineers, 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 relates to the attachment of pneumatic tyres to the rims of wheels
and has for its object to provide more simple and efficient means than hitherto for
attaching the tyres to, and removing them from, the rims and also to provide a safer
seating for the inner or air tube.

page_text: According to our invention we provide a rim of suitable section, and to the said
rim we hinge a number of clips having thickened or grooved outer edges, that is
to say, having a rib or projection or grooves on the underside of their free ends.
We also provide the outer covering with lateral ridges or grooves on its inner
surface, the said ridges or grooves being designed when the air tube, which may be of
any suitable construction, is inflated to engage with the ridges or projections on the
underside of the clips which are pressed against the rim in such a manner that the tyre
is rigidly secured in position.
We sometimes form teeth on the underside of the free ends of the clips instead
of the projection or groove and in this case we dispense with the grooves or ridges
on the outer covering of the tyre.
To enable our invention to be fully understood we will describe it by reference to
the accompanying drawing, in which :-
Figure 1 is a section through a tyre and rim shewing our method of attaching the
tyre to the rim :
Figure 2 is a plan of the wheel rim with the clips attached:
Figure 3 is a cross section of the outer covering of the tyre made according to our
invention:
Figure 4 is a cross section through the rim and clips:
Figure 5 is a view similar to Figure 4 of a slight modification:
Figure 6 is a plan of the same.
a is the rim of the wheel as here shewn of wood, and b, b are the clips hinged
to the same, the outer ends c, c of the said clips being inturned on the underside so
as to form projections or hooks as clearly shewn.
The clips b, b are hinged to the rim by means of a wire d to which their inner ends
are loosely attached, the said wire being passed round a groove in the centre of the
rim a and having its two ends which are screw threaded secured to a connecting
piece e by nuts as shewn in Figure 2.
In the arrangement shewn in Figures 5 and 6, the two sets of clips are hinged
to two wires d, d instead of to one, the said wires being connected to a connecting
piece similar to that shewn in Figure 2.
f is the outer covering of the tyre and 9, 9 are the thickened inner edges of the
same. h is an inner or air tube of ordinary construction, and i is a layer of
suitable fabric which is placed upon the clips to protect the said inner or air
tube h.
To secure the tyre in position upon the rim, the outer covering with the inner
tube in position is placed upon the rim, the thickened inner edges g of the said outer
cover fare pushed underneath the outer inturned ends c of the clips 6 and the tyre
is then inflated. The inflation of the inner tube h forces the clips b against the outer
covering of the tyre in such a manner that the inner inturned ends c, c of the said
clips grip the thickened edges g, g of the outer covering and securely hold the tyre
on the rim. To remove the tyre, the air tube h is deflated and the cover f can then
be readily pulled off.
Another advantage of our invention is that the nipples or heads of the wheel
spokes are covered by the clips b, b so that they cannot therefore injure the air
tube h.
As above mentioned the clips 6 can be formed with ridges or grooves instead of
with the inturned ends c, c and the outer covering f can be formed with grooves to
engage with the ridges on the clips b.
It will be obvious that our invention is equally applicable for securing single tube
tyres to the rims of wheels.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
1. In pneumatic tyres securing the tyre to the rim by means of clips hinged to

page_text: the said rim and adapted to engage, when the tyre is inflated, with the edges of the
outer covering of the tyre, substantially as hereinbefore described.
2. A wheel rim having clips hinged around its periphery, substantially as, and for
the purpose, hereinbefore described.
3. A wheel, the rim of which is provided with hinged clips which engage with
the outer cover of a pneumatic tyre so as to secure the same in position on the rim,
substantially as described.
4. The improved wheel rims and tyre, hereinbefore described and illustrated in the
accompanying drawing.
Dated this 3rd day of Anril 1897
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.