'Improved Mode of Fixing Pneumatic Tyres.
Year: 1892

page_text: COMPLETE SPECIFICATION.
'Improved Mode of Fixing Pneumatic Tyres.
I PAUL DE LAET, Saddlor, of 2 Rue du Hainaut, Gant in the Kingdom of
Belgium 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 :-
The invention relates to a mode of fixing the outer envelope serving for the
protection of the air chamber of pneumatic tyres on bicycles and other vehicles
and consists in threads or bands attached to the tyres made of metal or other
material capable of being drawn and locked together by levers which will draw or
slacken instantaneously the said bands according to the necessity of fixing or
undoing the outer envelope or tyre.
Fig. 1 of the annexed drawing shows an attachment band furnished with the
lever fastening.
Fig. 2 shows the lever fixed on the ring of one of the extremities of the band to
be attached but not yet passed through the eyelet of the other extremity of the
band.
Fig. 3 shows a plan view of band, lever, and loop.
Fig. 4 is a plan view showing the bands drawn to, the manner in which the.
levers are maintained closed by aid of a hook engaged in a loop or link which are
both made to lie within the felly of the wheel.
Fig. 5 is a side view of the felly showing one of the depressions for receiving-the
hook and loop in order to permit the hook turning.
Fig. 6 is a plan view of the outer envelope which shows the bands attached, and
fastened at the narrowed or recessed parts of tho envelope.
The attachment bands A are furnished at each extremity with a loop B, a
lever C is fixed on one of the extremities of the band for drawing to the band as
soon as the extremity of the lever is passed through the loop, terminating the other
extremity of the band, on turning the lever on its pivot.
The levers are each supplied with a hook D which is to be housed after action
within the small holes E made in the felly.
The levers Care kept closed by the pressure of air in the tyre. On each side
of the outer envelope for about 5 centimeters length, the breadth of the envelope is
diminished or recessed about 5 millimeters in order to give clear passage and to
permit the operating of the levers C of the bands A.
In order to facilitate the operating of the levers C and for receiving also the
band attachments, the fellies have been furnished with two recesses G to allow the
levers to turn on their pivot.
Any other system of levers can be used.
The bands to be attached may be constructed to pass within channelled recesses
in the two borders of the envelope, these canals being provided with tubes of
caoutchouc in the same manner as the ordinary wire bands used for the said
purpose.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.
:
The method of locking attachment bands A for fixing the outer protecting
envelope or covering F of air chambers of pneumatic tyres of bicycles and other
vehicles by aid of loops B on the ends of the bands, operated by 'levers C, or other

page_text: levers, ending in a hook D for engagement in holes formed in the felly, all
stantially as described and illustrated and for the purposes set forth.
sub-
Dated this 11th day of October 1892.
HERBERT & Co.,
18, Buckingham,Street, Strand, London, W.C., Agents to Applicant.