Improvements in and connected with Inflatable Tyres for Wheels.
Year: 1893

page_text: Date of Application, 28th Dec., 1893-Accepted, 3rd Feh., 1894
COMPLETE SPECIFICATION.
Improvements in and connected with Inflatable Tyres for Wheels.
I, ADOLPHE EMILE JANSEN, Gun Maker, of 27 Rue de la Madeleine, Brussels,.
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 consists in the special construction of an "outer cover "(or shield).
of an inflatable tyre and more particularly in the special form of the metallic
portions or parts, with which the edges of the outer cover are provided in order to
attach the same to the rim of the wheel-and a certain device, which prevents the
outer cover from sliding (or creeping) upon the rim, or detach itself from the same,.
even if the tyre is completely deflated by an accident while the wheel is in motion.
Fig. 1 is a front view of a metal segment S. with which the edges of the cover E.
are provided.
Fig. 1 is a section of the metal segment S. on the line a-b.
Fig. 2 a front view of a segment S. with collar piece B, being movable like a
hinge.
Fig. 2 is a side view of Fig. 2.
Fig. 3 a side view of cover (or shield) E, provided (in its edges) with metal
segments S.
Fig. 4 is a cross section of cover E, in the portion where the (a) collar piece B.
is attached to a metal segment S.
Fig. 5 gives a section of a rim J. as it might be used for the cover E, but any
other form of rim is suitable, provided that the edges of the rim are bent inward to
the concave shaped part of the rim (in section).
Fig. 6 is a section of the complete new pneumatic tyre of present invention..
(T. a lining of canvas or other like material, C, the air-chamber.)
The combination (construction) of cover E is the following: Like nearly all
pneumatic tyre covers, it is lined with canvas or other suitable material, as much
to strengthen it as to limit its expansion when inflated.
Within the circumferential edges of cover E, are inserted the metal (wire)
segments S. (of round, flattened or any other shape in section) of the forms shown
in the drawings.
These metal segments S. are inserted in such a way within the edges of the
cover E. that they form an uninterrupted circle, leaving no space between the
metal (wire) segments S.
The ends S 1, (which are left uncovered) of the metal (wire) segments S, are
placed one against the other, on the outside of the cover E, and at right angles
with such edges of cover E.
To one (or more) metal segments S, is fixed the collar piece B. for the purpose
of preventing the cover E, from slipping or creeping upon the rim J. or detaching
itself from same, if a sudden escape of the compressed air (from the chamber C)
takes place, while the wheel is in motion. In order to effect this, the body of the
"valve" (with which air chamber C, is provided) passes through the collar piece B,
and thereby fixes at that point, air chamber C, and cover E, at same time.
The sliding (creeping) of the cover E, upon rim J, can also be effectively
prevented by placing (as shown in Fig. 5) one or more rivets or screws R. across
the grooves of rim J, against which rivets or screws, the ends $1 of the segments S
will place themselves.
The mounting (or building-up) of this tyre is so easy, that it hardly needs any
description. Cover E, combined and constructed as above described, is first placed

page_text: with one of its edges upon rim J. then the air chamber C, is put in its place and
care being taken, that the body of the "valve" (of air chamber C.) passes through
collar piece B. and is kept from returning, by a nut, screwed upon the body of said
valve, on the outside of rim J. Thereby at same time, fastening air chamber C,
to rim J, and preventing cover E, from creeping upon, or falling off from, rim J,
unless said nut is unscrewed first. In filling now, with compressed air, the
chamber C, the ends S 1, of the segments S, inserted into the edges of cover E,
will grip and engage into the grooves or recesses of rim J. and the complete, tyre
will firmly be held upon the rim of the wheel.
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:
The special construction of an outer cover (or shield) E, for inflatable wheel
tyres, and its particular portions for the attachment of this cover (and consequently
the complete tyre) upon rims of wheels, substantially as set forth and shown in
the accompanying drawings.
Dated this Nineteenth day of December 1893.
ADOLPHE EMILE JANSEN.