Improvements in or appertaining to Mechanism or Devices for Attaching or Protecting Pneumatic or other Tyres.
Year: 1891

page_text: Date of Application, 4th July, 1891
Complete Specification Left, 4th Apr., 1892-Accepted, 7th May,
1892
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Mechanism
or Devices for
Attaching or Protecting Pneumatic or other Tyres.
1, WILLIAM JAMES of The Woodlands, Birkenhead in the County of Chester,
Cycle Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object an arrangement whereby the pneumatic tyre can
be at once taken from the wheel in case of puncture, examined carefully, the
puncture repaired, and the pneumatic tyre at once reinserted without lacing and
the like. Also an arrangement whereby the pneumatic tyre will be less casily
punctured than at present. Attached to the tyre or formed in one with it I arrange
two beads flanges, or grips, one on each side, and holding on to these beads, flanges
or grips I make two other hooked flanges or detachable rims or rings split at one
or more points. These hooked rings are preferably perforated with numerous
perforations, and the canvas is cemented over them with india rubber solution in
such manner that they can hook on to the two beads or grips on the tyre. These
beads or grips can be either inside or outside the tyre. The tyre itself is
surrounded by a felt pad.
The mode of action is as follows:--The canvas is hooked on to one of the beads
or grips by means of the hooked flange.
The pad is placed in position, the pneumatic tyre sprung on to the pad, and the
canvas stretched over it and the hooked flange of the ring hooked into the flange
or grip.
The shoe is then or previously cemented onto the canvas, the edges of the shoe
being firmly cemented to the flat face of the canvas cemented to the hooked
flanges.
In adapting my invention to an old bicycle I form the beads or grips of a strip
of tin iron or other material having its two edges turned over and the body of it
rivetted at intervals on to the tyre. The nuts attaching the spokes of the wheel
also pass through holes in this tin strip, and the nuts are screwed over the tin strip
thus affording an additional attachment.
The strip of felt deadens the force of blows on the tyre when the latter is not
fully expanded & the tyre being entirely covered with the canvas or the tin plate
to which it is attached makes the arrangement much stronger than the ordinary one.
Dated this 3rd day of July 1891.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Mechanism or Devices for
Attaching or Protecting Pneumatic or other Tyres.
I, WILLIAM JAMES, of 166 Borough Road, Birkenhead in the County of
Chester, 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 has for its object an arrangement whereby the inflation tube can
be at once removed from the tyre in case of puncture, examined carefully, the
puncture repaired, or old spokes replaced by new ones, and the inflation tube at

page_text: once re-inserted without lacing and the like, also an arrangement whereby the
pneumatic tyre will be less easily punctured than at present.
The invention will be understood by the following description, reference being
had to the accompanying drawings, in which-
Figure 1 is a cross section of the tyre complete.
Figures 2 and 3 detail views showing parts of the tyre with the inflation tube
withdrawn.
Attached to the rim or formed in one with it, I arrange two beads, flanges or
grips A, one on each side, and holding on to these beads, flanges or grips, are
provided two other hooked flanges or detachable rims or rings B B (of metal or
other suitable material preferably tin) split at one or more points. These hooked
flanges B B are preferably perforated with numerous perforations or milled and
the folds of the canvas or other suitable covering C is cemented over them with
india rubber solution or its equivalent (the perforations or milling in the flanges
forming a hold for the cement) in such manner that the canvas C with its flanges
can hook on to the two beads A of the rim.
The tyre is further provided with a pad D of felt or similar material having a
backing of canvas, leather or other material to hold it together, and the pad D
is so shaped (about the parts d d) that it acts as a filling for the blank spaces
which there would otherwise be between the top exterior corners of the inflation
tube and the opposite adjacent portions of the canvas C. E is the shoe or layer
of rubber cemented onto the canvas C, the edges of the shoc or layer being firmly
cemented to the flat face of the canvas cemented to the hooked flanges. It may
be here observed that when my arrangement of pneumatic tyre is employed, this
shoe or layer may be much thinner than ordinarily, which is an advantage in that,
from observation, a wheel with a thick shoe or layer is much more apt to slip on
the road than one with a thinner shoe or layer. Ġ is the rim of the wheel which,
at start, is left wider to allow of its edges being turned over to form the beads,
flanges or grips A when such are formed in one with the rim. His one of the
'spokes of the wheel. The canvas C may be in one or more thicknesses but I prefer
it to be as shown on the drawings, where it is formed out of the one width of
canvas folded upon itself in two thicknesses (and going round the flanges B)
except at the overlapping ends where it, of course, forms three thicknesses.
The mode of fixing is as follows-
The canvas C is hooked on to one of the beads, flanges or grips A by means of
one of the hooked flanges B. The pad D being previously placed in position, the
inflation tube J is sprung on to the pad, the canvas stretched over it, and the other
hooked flange of the canvas hooked into the bead, flange or grip, on the other side
of the rim. The tube J is then inflated by compressed air or other medium being
introduced through a valve as usual. It is to be observed that the shoe or layer E
having been previously cemented on to the canvas as hereinbefore mentioned there
is not required any further cementing or solutioning, as the shoe is permanently
attached to the canvas.
The strip of felt D deadens the force of blows on the inflation tube J in going
over obstacles on the road, and also protects it in case it is not fully inflated,
besides which the canvas going entirely round the grips makes the fastening much
stronger and more reliable in that the canvas will be secured by the grips should
the cementing not be perfect. The pad also by filling in the blank spaces adjacent
to the corners of the inflation tube prevent the latter from being cut against the
edge of the metallic portion.
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, 'the arrangement whereby the tyre, or the air tube
contained therein, can be at once 'taken from the wheel in case of puncture (or
when otherwise required) examined carefully, the puncture repaired or broken

page_text: spokes replaced, and the inflation tube re-inserted in the rim without lacing,
re-cementing or the like, substantially as described.
2. The employment, in a pneumatic tyre, of a covering C of canvas or the like,
and of hooked attachments A. B, whereby the said covering can be easily attached
to the wheel rim with the inflation tube retained in position between, and as easily
detached therefrom when required, substantially as described.
3. In a pneumatic tyre, the application of a pad D which, whilst protecting the
inflation tube, is so shaped that it also acts as a filling for the blank spaces,
adjacent to the corners of the said tube.
4. Forming, in the flanges or detachable rims or rings B, perforations or milling
substantially as and for the purpose described.
Dated this 25th day of March 1892.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham, and London, Patent Agents.