Improvements in Means for Securing Pneumatic Tires to - Cycle Rims..
Year: 1894

page_text: Date of Application, 18th July, 1894
Complete Specification Left, 18th Apr., 1895-Accepted, 18th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Means for Securing Pneumatic Tires to
- Cycle Rims..
We, THOMAS GUTHRIE, Decorator, of 3 Thorney Terrace, and WILLIAM
THOMAS HALL, Schoolmaster, of 1 Whitburn Terrace, both in South Shields in
the County of Durham do hereby declare the nature of this invention to be as
follows
This invention relates to improvements in means for securing pneumatic tires to
cycle rims.
To effect our purpose we propose to secure the outer cover of the tire to the rim
by means of a single wire or band instead of by a double arrangement of wires as
is at present generally the case.
For this purpose we propose to form the edges of the tire with corresponding
indentations or equivalent formations adapted to fit into or opposite each other so
as to permit of a wire or band being threaded through or past them the wire being
intended to rest in a central groove or indentation in the rim.
The wire and groove may be of any suitable section or the tire edges formed as
foreshadowed may have hooked or equivalent formations thereon adapted to hook
or be otherwise equivalently secured onto the wire or onto each other as may be
found most suitable or the one edge may be thickened in any suitable manner_so
that the wired edge may over or underlie it to lock the two together under
inflation.
The wire ends may have right and left hand screws formed on them so that a
box or like nut or device may be applied for tightening the wire up and at the
opposite side or at another part the wire may be connected to a ring through which
the valve tube device may pass for the purposes of inflation.
The pressure arising from inflation may thus radiate from one line instead of two
lines of attachments, while greater resiliency may similarly be obtained.
Dated this 17th day of July 1894.
A. CRAWHALL CHAPMAN,
3, St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.
Improvements in Means for Securing Pneumatic Tires to
Cycle Rims.
We, THOMAS GUTHRIE, Decorator of 3 Thorney Terrace and WILLIAM
THOMAS HALL, Schoolmaster, of 1 Whitburn Terrace, both in South Shields in
the County of Durham, 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 means for securing pneumatic tires to
Cycle rims.

page_text: We will fully describe our invention with reference to the accompanying drawings
in which Figure 1 shows in side sectional elevational view part of a cycle tire and
rim, Figure 2 being a cross-sectional view and in the following description like
marks of reference designate like parts.
Referring to the drawings it will be observed that one edge a of the tire is
thickened by means of having a hempen or other soft pliable core sewn in inter-
woven or otherwise run or secured round it, the other edge a¹ being provided with
a wire.
At the side of the rim where the inflation valve device V is secured, the wire
ends are looped or otherwise secured to a plate p in which there is also an aperture
through which the valve device V passes and is secured as shown. At the opposite
side of the rim the wire ends are formed with eyes on them which slip over the
hooks h; the bodies of these hooks are tapped and work on right- and left-handed
screws and on the screw is a boss B so that by turning the boss by a key or
otherwise the hooks are caused to approach or recede from the boss to tighten up
or slacken the wire within the rim.
The hooks work within slots cut in the rim.
The wired edge, in practice, overlies the pliable or hempen edge and tightened
up over or on it to keep the tire secure on the rim.
"
Should a puncture occur, by the arrangement described, it is unnecessary to
remove the whole of the tire from the rim as is the case with tire edges having a
wire in each of them, for the operator can after having slackened the wire by
turning the boss B easily withdraw a few inches of the soft pliable edge from
underneath the wired edge and in this manner have access to the internal inflation
tube T and similarly he can easily replace the thickened edge under the wired edge
prior to tightening up the wire as above described.
By the arrangement described "creeping" of the tire round the rim is effectually
prevented as the tire is mechanically secured to the rim both at the valve device
side and at the tightening up or slackening side, the risk of "nipping" the inflation
tube also being reduced to a minimum.
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 :-
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1. The improved means for securing pneumatic tires to cycle rims consisting in
the provision in combination with the tire of one pliable edge and one wired edge
arranged within the rim to overlap each other the wired edge having two ends
secured to a plate through which the inflation valve device passes at one side of
the rim the other two ends being secured or looped over or onto hooks adapted to
be moved so as to tighten up or slacken the wire at the opposite side of the rim the
several parts being arranged disposed and adapted to work substantially as and for
the purposes herein described and illustrated.
2. The improved means for securing pneumatic tires to cycle rims consisting in
the provision in combination with the tire of one pliable edge and one wired edge
arranged to overlap each other and to be tightened up or slackened within the rim
substantially as and for the purposes herein set forth with reference to Figures 1
and 2 of the drawings.
3. The improved means for securing pneumatic tires to cycle rims substantially
as described and shown in Figures 1 and 2 of the drawings.
Dated this 17th don of Al 100K
A. CRAWHALL CHAPMAN,
3, St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.
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