Improvements in or relating to Pneumatic Tyres.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Pneumatic Tyres.
I, ROBERT ADAMS HALL, Schoolmaster, of 113 Brighton Grove, in the City
and County of Newcastle-on-Tyne, do hereby declare the nature of this inven-
tion to be as follows:-
My invention relates to pneumatic tyres, and has for its object to attain their
fastening on the rims in a secure and simple manner.
According to my invention I enlarge both margins or edges of the cover or
jacket in any suitable way, and nip or fasten them against the rim by a circum-
ferential band or bridge-piece, whose extremities are arranged to overlap and be
united in use by a screw or other device arranged to adapt itself to the curvature
of the wheel.
In one form of such a device I employ a right and a left hand screw between which
and to each is secured, by being formed in one therewith or otherwise appro-
priately, a boss or enlargement furnished with a series of holes to receive a più or
the like to turn it, and so operate the screws, which work in nuts movably con-
nected to the band or bridge-piece, one nut being disposed at one band extremity
and the other at the other extremity. These nuts are cylindrical and are revolubly
held in brackets rivetted to the band or bridge-piece, the hole through which
the screw passes at both ends of each bracket being slotted or elongated to meet
the movement of the screw consequent on the rotation of its nut.
In another form, the nuts may be lugs rigidly fixed on the band or bridge-piece
and the screws united to the boss or enlargement by any convenient kind of
universal joint; or these. lugs may be detached from the band or bridge-piece and
provided with hooks or projections for engaging the ends thereof slotted, eyed or
otherwise fashioned for the purpose.
The screws, nuts and operating boss or enlargement may be situated within
or without the rim. In the former case a hole will be cut in the rim to give
access to the operating piece. In the other location the rim will be slotted to
admit of the passage and movement of the parts.
When the boss or enlargement is turned, the ends of the band or bridge-piece
are drawn together through the medium of the screws and nuts, consequently the
band grips the edges of the jacket or cover firmly between itself and the rim
and so accomplishes the required fastening, while the adjustability permitted by
the revoluble nuts or the universal joints at the screws secures the necessary align-
ment, whereby immunity from breakage results.
Dated this 18th day of November. 1899.

page_text: I, ROBERT ADAMS HALL, Schoolmaster, of 113, Brighton Grove, in the City
and County of Newcastle-on-Tyne, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
My invention relates to pneumatic tyres, and has for its object to attain their
fastening on the rims in a secure and simple manner.
I will fully describe my improvements in reference to the accompanying draw-
ings, whereof Fig. 1 is a cross-section and Fig. 2 is a longitudinal section of
one arrangement, and Figs. 3 and 4 are similar views of another.
In these drawings, A indicates the cover or jacket of the tyre, B the air tube
and C the rim.
According to my invention I enlarge both margins or edges of the cover or
jacket A in any suitable way, as by a core a as illustrated, and nip or fasten
them against the rim C by a circumferential band or bridge-piece D of fairly
flexible metal, whose extremities are arranged to overlap and be united in use
by a screw device E arranged to adapt itself to the curvature of the wheel.
In one form of such a device, which is represented in Figs. 1 and 2, I employ
a right and a left hand screw, designated e and e¹ respectively, between which
and to each is secured, by being formed in one therewith, as shown, or otherwise
appropriately, a boss or enlargement e² furnished with a series of holes e³-3
to receive a pin or the like to turn it, and so operate the screws e, e¹, which work
in nuts e, e movably connected to the band or bridge-piece D, one nut being
disposed at one band extremity and the other at the other extremity. These
nuts are cylindrical and are revolubly held in brackets e, e riveted to the
band or bridge-piece D, the hole through which the screw passes at both ends of
each bracket being slotted or elongated as shown, to meet the movement of the
screw consequent on the rotation of its nut.
et
In another form, illustrated in Figs. 3 and 4, the nuts are in the form of lugs e^,
rigidly fixed on the band or bridge-piece D, or formed integral therewith as
shown, and the screws e, e¹ are united to the boss or enlargement e2 by any
convenient kind of universal joint. This joint is exemplified as being constituted
by forming on one end of each screw a spherical head for fitting and working
in a corresponding recess in the boss or enlargement e², the latter, of course, being
so constructed as to permit of the insertion and withdrawal of the heads e6, e.
As will be obvious, the lugs e, et may be detached from the band or bridge-
piece I and provided with hooks or projections for engaging the ends thereof,
slotted, eyed or otherwise fashioned for the purpose.
The screws e, e', nuts et, e and operating boss or enlargement e² may
be situated within or without the rim C. In the former case, as in Figs. 1 and 2,
In the other
a hole c is cut in the rim C to give access to the operating piece.
location, represented by Figs. 3 and 4, the rim C is slotted to admit of the
passage and movement of the parts.
When the boss or enlargement is turned, the ends of the band or bridge-
piece Dare drawn together through the medium of the screws e, e¹ and nuts e^, e,
consequently the band grips the edges of the jacket or cover A firmly between
itself and the rim C and so accomplishes the required fastening, while the
adjustability permitted by the revoluble nuts or the universal joints at the screws
secures the necessary alignment, whereby immunity from breakage results.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. In a pneumatic tyre, enlarging both margins or edges of the cover or jacket
and nipping or fastening them against the rim by a circumferential band or
bridge-piece whose extremities are arranged to overlap and be united in use by
a screw device arranged to adapt itself to the curvature of the wheel, substantially
as described.
2. In a pneumatic tyre having enlarged margins or edges to the cover or jacket
which are nipped or fastened against the rim by a circumferential band or bridge-
piece whose extremities are arranged to overlap, a device for uniting the extremi-
ties of the band or bridge-piece, comprising a right and left hand screw arranged
and adapted for use, substantially as described.
3. The combination of parts constituting the improvements in or relating to
pneumatic tyres, all arranged and adapted for use, substantially as described
with reference to Figs. 1 and 2 of the accompanying drawings.
4. The combination of parts constituting the improvements in or relating to
pneumatic tyres, all arranged and adapted for use, substantially as described with
reference to Figs. 3 and 4 of the accompanying drawings.
Dated this 18th day of September 1900.
Dated this 18th day of September 1900.
For the Applicant,
J. A. HARVEY,
Chartered Patent Agent,
3, St. Nicholas'. Buildings, Newcastle-on-Tyne.