Improvements in or relating to the Attachment of Pneumatic Tyres to the Rims of the Wheels of Bicycles, Tricycles, and other Velocipedes.
Year: 1894

page_text: Date of Application, 8th May, 1894-Accepted, 9th June, 1894
COMPLETE SPECIFICATION.
Improvements in or relating to the Attachment of Pneumatic Tyres
to the Rims of the Wheels of Bicycles, Tricycles, and other
Velocipedes.
We LOUIS SCHRAMM of 1 Parkville Road, Fulham in the County of Middlesex
Electrician and JUDD'S PAPER AND STATIONERY COMPANY LIMITED of 17
Charterhouse Buildings in the County of London, 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 an improved means of attaching the outer coverings of
pneumatic tyres to the rims of the wheels of bicycles, tricycles and other veloci-
pedes; and has for its object to keep the tyre firmly in position when inflated or
deflated, whilst allowing the air-bag to be readily and speedily reached for repair
in case of a puncture.
According to this invention we fix or suitably fasten a small tube of metal on or
in one or both of the edges of the outer covering of a pneumatic tyre. These tubes
may be made either endless or not, and in the latter case the ends may be connected
or fastened together when the tyre is in position, by turning the said ends over to
form looks or in any other suitable manner.
We construct the rim which we use with our tyre with one or more grooves or
of other suitable section so that the tubes may be readily drawn or sprung into the
required position and when the tyre is inflated may be firmly held therein.
And in order that our said invention may be better understood we will describe
the same with reference to the accompanying drawing in which :—
Fig. 1 shews a section of a tyre constructed according to our invention.
Fig. 2. shews the same tyre opened out.
Fig. 3. is an enlarged section of one of the tubes, inserted in a pocket formed on
the edge of the outer covering.
Figs. 4, 5, and 6 shew details.
The same letters denote the same parts in all the views.
a shews air-bag; b outer covering held on to the rim e, by the metal tubes d d;
these tubes fit into the pockets e formed on each edge of the outer covering b; fis
a V slot formed in the rim c so that when the air-bag is inflated it will draw
the tubes d d from † † in the slot f to ** as shewn at Fig. 6, the ends of the
tubes d d being hooked so as to retain them in position.
Another way of keeping the ends of the tubes in position is shewn in Fig. 4 in
which fig., g shews slot formed in the rim e, the ends of tubes d d passing through
said slot and also through a key-hole piece shewn detached in Fig. 5; so that
when the piece is turned round after inflating the air-bag, it will bring the ends
of the tubes d d into the position shewn in Fig. 5. and when the air-tube is deflated
the position of these tubes will be as represented at Fig. 4. so that the outer
covering can be easily removed.
The ends of the tubes d d may be hooked, so as to hold them in the slots; i shews
one of the spokes.
The tubes d d may be fastened to the edges of the outer covering in any other
suitable manner, instead of being passed through pockets. kk shew cups formed
in rim c to receive the tubes d d so as to take strain off such tubes.
We may add that we are aware that a solid thread of metal, wire, ring, or hoop
has been used for fastening the edges of the outer coverings of pneumatic tyres to
the rims; but not a tube or tubes; by the employment of which a greater amount
of lightness and flexibility, combined with strength is obtained.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
(1.) In pneumatic tyres the employment of tubes d d for the purpose set forth.
(2.) In pneumatic tyres the combination of the tubes d d and slots f substantially
as and for the purpose set forth.
(3.) In pneumatic tyres the combination of the tubes d d and slots
substantially as and for the purpose set forth.
and piece h
(4.) Attaching pneumatic tyres to the rims of wheels, substantially as set forth.
Dated this 8th day of May 1894
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicants.