Improvements in Elastic Tyres.
Year: 1890

page_text: Date of Application, 9th Sept., 1890
Complete Specification Left, 23rd Feb., 1891-Accepted, 28th Mar., 1891
PROVISIONAL SPECIFICATION
Improvements in Elastic Tyres.
I, JOHN SAMUEL SMITH, of 244, Borough High Street, in the County of Surrey,
Engineer, do hereby declare the nature of this invention to he as follows:-
This invention relates to improvements in that class of wheel tyres which are
forined hollow and inflated with air or other fluid, the object of my improvements
being to obtain increased strength and to provide simple means of allowing the
inner inflated tube of the tyre to be removed for repairs.
In carrying out my invention I employ a tube of india-rubber protected with a
covering of canvas or the like, and inflate the same in any well known manner after
it has been placed on the rim of the wheel. In order to fix the inflated tyre on the
rim and to protect it I place around the same a covering of leather and rubber, the
edges of this covering being laced together under the rim of the wheel or instead of
being laced the edges may be otherwise suitably connected.
Dated the 9th day of Sontember 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Elastic Tyres.
I, JOHN SAMUEL SMITH, of 244, Borough High Street, in the County of Surrey,
Engineer, 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 improvements in that class of wheel tyres which are
formed hollow and inflated with air or other fluid, the object of my improvements
being to obtain greater strength than heretofore, and to provide simple means for
allowing the tyre to be removed for repairs.
According to my invention the tube to be inflated has placed around it a covering
of leather and india-rubber, the edges of this covering (which form flaps) being
laced together to attach the tyre to the rim.
To enable my invention to be fully understood I will describe the same with
reference to the accompanying drawings, in which :-
Figure 1 is a view of the inner or under side of a portion of the rim of a wheel
provided with
my improved tyre; and,
Figure 2 is a similar view representing the lacing flaps thrown back, and part of
the metal rim broken away:
Figure 3 is a section on the line .cx, Figure 1; and,
Figure 4 is a section on the line y y, Figure 2:
Figure 5 is a view similar to Figure 4, but shewing some of the parts in different
positions.
a indicates the inflatable tube of the tyre, and 6 the pipe through which the
inflation is effected, the said pipe being provided with a suitable valve in a well
known manner. cd indicate the leather and india-rubber respectively of the
covering by which the said tube is surrounded; that portion of the india-rubber
which comes in contact with the ground being thicker than the other parts thereof,
as shewn clearly in the drawings. e, e are the edges of the said covering, the said
edges forming flaps which, when the tyre is placed against the rim of the wheel,
[Price 6d1

page_text: (which rim in the drawings is indicated by the letter) can be secured by menus
of a lacey connected to stud-looks or eyelets h, h on the edges of the said flaps.
In order that the tube a shall not conie into immediate contact with the rim,
whereby the said tube would be liable to injury, I suatre lappts or flaps i, i to the
leather portion of the covering by stitching or otherwis as shown most clearly in
Figure 3. In practice 1 find it alvantageous to cement a strip of canvas or the
like on the lappets to support the stitching. These lappers, which lie one upon the
other, are advantageously cemented together so that they will tend to counteract to
a certain extent any lateral expansion of the said tube.
In order. however, that the inhe may be introduced into and removed from the
covering, it is necessary to provide openings at one or more points, and therefore
at such points the said lappots, are left uncemented so that they can be turned
back, as shown in Figure 5, to allow the withdrawal of the tube. To hold these
uncemented lappets in position 1 advantageously provide the auxiliary flaps k, k
adapted to be faced together, as shewn must clearly in Figures 2 and 4.
If desired the appots may be left entirely uncemented, that is to say, they
may be adapted to open at any point, and in such ense the auxiliary flaps Z must
extend entirely around the tyre.
Having now particularly de-cribed 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 improvement in elastic tyres, consisting in providing such tyres with flaps
adapted to be laced over the rim of the wheel so as to secure them thereto,
substantially in the manner described.
2. An elastic tyre comprising an inner tube adapted to be inflated and a covering,
preferably of leather and india-rubber as described, adapted to be laced at its edges,
substantially as set forth.
3. An elastic tyre comprising an inner tube capable of being inflated and a
covering for the same, the edges of which form flaps for enabling the tyre to be
secured to the rim of the wheel by means of lacos, a protecting layer being arranged
between the inflated tube and the rim of the wheel, the said layer being formed of
two lappets which can be wholly or partially turned back to allow the withdrawal
of the inflated tube from the covering and which, where adapted to be thrown back,
are held by auxiliary laced flaps, substantially as described.
4. The manufacture and use of elastic tyres substantially in the manner
hereinbefore described and illustrated in the accompanying drawings.
Dated the 23rd day of February 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.