Improvement in Pneumatic Tyres and Rims to Hold the same as used for Cycles and other Vehicles.
Year: 1892

page_text: Date of Application, 8th Mar., 1892
Complete Specification Left, 7th Dec., 1892-Accepted, 7th Jan., 1893
PROVISIONAL SPECIFICATION
An Improvement in Pneumatic Tyres and Rims to Hold the same
as used for Cycles and other Vehicles.
RICHARD MANSELL-JONES 56 Lansdowne Place Brighton Sussex Surgeon do
hereby declare the nature of this invention to be as follows :—
It is very important to be able to quickly detach, and attach pneumatic tyres
and air tubes from and to the wheel rim for purposes of repair &c. I accomplish
this as follows:
I make a rim about one inch and a half wide, & slightly concave on its outer
surface, and with a groove in the centre about of an inch in width and depth, for
the wired edges of the tyre to lodge in. The tyre is made of vulcanized rubber
& canvas the rubber is graduated being about 1 of an inch thick at its edges, and
of an inch thick in the centre, where it comes in contact with the ground.
The edges are somewhat loosely turned over the wires, (so that they can be easily
taken out or put in when occasion arises) & firmly stitched & cemented to the
body of the tyre. A space of about two inches long & one inch deep is left on
each edge of the tyre without any canvas protection. This space may be of any
suitable shape, such as a square, a triangle, or it may extend across the tyre and
is for the purpose of enabling the wires to be taken out, or put in, and also of
allowing the edges of the tyre to expand and be sprung on the rim. The air tube
has a band of canvas about six inches long, and of a corresponding diameter to
the tyre, placed opposite these unprotected spaces to prevent it projecting through
them when inflated. The wired edges of the tyre may be secured to the rim by
any of the following methods. The ends of each wire may be connected by a
nipple having a right and left hand thread, or two oval shaped blocks of steel,
about half an inch long & a quarter of an inch deep may be made to fit accurately
in the groove in the rim. Through each of these blocks three holes are made in
a line with each other. The centre hole in one block has a right hand thread,
and the corresponding hole in the other block a left hand thread. To fix the tyre
to the rim, the air tube is placed within it, and the ends of each wire are thrust
through the corresponding lateral holes in each block, and securely held in this
position by a small nut screwed on each. The tyre, enveloping the air tube, is now
sprung on the rim, and the two blocks drawn together by a screw about three
inches long, having a right and left hand thread.
Another method is to screw a small steel loop to each end of the wires, the
loops or ears standing at right angles and flat with them.
When the tyre is sprung on the rim each loop is thrust through a corresponding
slot, about one inch and a half long, made in the groove of the rim, and drawn
tightly together on its back, by two hooks placed on a shaft, about three inches
long & having a right and left hand thread. Each pair of slots are placed between
two spokes, with a central spoke and about half an inch of rim dividing them.
One loop & block can be made, if necessary, to carry the ends of two wires,
by the method described in the first fastening. Or the loops can be placed on the
block in a line with the wires, and drawn together by a fine pointed screw hammer,
By
and firmly fixed together & to the rim through a hole in it, by a nut & bolt.
the latter methods of fastening it is absolutely impossible for the tyre to creep
round the rim. The tyre above described can be fitted to any grooved rim, and is
an excellent method of converting a cushion tyred machine into a pneumatic. I
attach great importance to placing the wires in the centre of a grooved rim, as in
this position the inflated air tube effectually prevents any friction between the

page_text: edges of tyre and rim, and the strain on the wires is much less than when placed
at the side.
Dated this 7th doxof March 1892
COMPLETE SPECIFICATION.
An Improvement in Pneumatic Tyres and Rims to Hold the same
as used for Cycles and other Vehicles.
I RICHARD MANSELL-JONES, of 56 Lansdowne Place, Brighton, in the County
of Sussex, Surgeon, 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 :-
My invention relates to an improved construction of pneumatic tyre, and it has
for its object, facilitating the detachment and attachment of the cover and air
tube of a pneumatic tyre from the wheel rim for the purpose of repair.
I attain this end in the manner illustrated in the accompanying drawings, in
which
Figure 1 Sheet No. 1 is a view in transverse section of a tyre constructed
according to my invention, and
Figure 2 Sheet No. 1 is a broken view in plan-with the cover removed--
showing the method of drawing the ends of the wires together by right and left
hand coupling nuts.
Figure 3 Sheet No. 1 is a view in transverse section, and
Figure 4 Sheet No. 1 is a broken view in plan with the cover removed-
showing the method of connecting the ends of the wires to blocks adapted to be
drawn together by a right and left hand coupling screw.
Figure 5 Sheet No. 1 is a view in transverse section showing the coupling blocks
fixed to the rim.
Figure 6 Sheet No. 1 is a view in transverse section showing the tyre fitted.to
a rim of the ordinary crescent section.
Figure 7 Sheet No. 2 is a broken view in longitudinal section of a tyre-with
the air tube removed showing the form of coupling illustrated by Figures 3 and 4
Sheet No. 1.
Figure 8 Sheet No. 2 is a broken view showing the air tube with its reinforcing
sleeve, and
Figure 9 is a broken view in longitudinal section of a tyre-with the air_tube
removed showing the form of coupling partly illustrated by Figure 5 Sheet No. 1.
Throughout the several views similar parts are marked with like letters of
preference.
The rim A of the wheel is of the ordinary crescent section, but it preferably
has a circumferential groove a in the centre of its concave face, to receive the
wired edges of the cover B. The cover B of the tyre is made of rubber and
canvas in the well-known manner being preferably thicker at that part adapted to
form the tread than elsewhere. In the edges of the cover B are formed pockets b, b,
in which binding wires C, C, are loosely placed. The ends of the wires C, C, pass
through openings in the said pockets and are drawn together to bind the edges of
the cover into the groove a in the rim A, either by means of right and left hand
coupling nuts D threaded direct on to the ends of the wires C, C, as shown by
Figures 1 and 2, or by means of a right and left hand coupling screw D, threaded
into blocks E, E, adapted to slide in the groove a in the rim, the said blocks
being formed with slots e, e, to receive the headed ends of the wires C, C, as shown
by Figures 3, 4 and 7.
As a modification of this device the blocks E, E, may be formed in one piece
and fixed to the rim by a screw or bolt e' as shown by Figures 5 and 9, in which
case the right and left hand coupling nuts D, D, are placed in any convenient

page_text: position in the lengths of the wires C, C, preferably about 6 or 8 inches from the
double block E.
To allow the edges of the cover B to stretch sufficiently to permit of their
being placed in position in the rim, the reinforcing canvas of the cover is cut
away in one or more places as shown by Figure 7, and the cover is reinforced at
this point or points by placing a short length of canvas tube over the air.
tube Fas shown by Figure 8. The air tube is of the usual construction and is
fitted with any suitable valve for inflation and deflation.
By this construction the cover of the tyre is prevented from creeping on the
rim, and the air tube is entirely confined within the cover, so that all contact of
the air tube with the rim of the wheel and the consequent possibility of it chafing
thereon, is avoided.
Although I prefer to use a rim with a central groove or depression I may use a
rim of the ordinary crescent section as shown by Figure 6.
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
1. The improvement in pneumatic tyres and rims, as hereinbefore described and
shown by the accompanying drawings.
2. In a pneumatic tyre having a removable cover, attaching the said cover to
the rim of the wheel by means of wires passing through pockets in the edges of
the cover, the said wired edges of the cover being adapted to fit in a circum-
ferential groove in the centre of the concave face of the rim, as set forth.
3. In a pneumatic tyre, the combination of the rim A having a circumferential
groove a; of the cover B having pockets b, b, formed in its edges; of the
wires C, C, located in the pockets b, b, in the edges of the cover and having
their ends threaded adapting them to be drawn together by a right and left
hand coupling nut to bind the edges of the cover in the circumferential groove
in the rim, and of the air tube F, as set forth.
4. In a pneumatic tyre, the combination of the rim A having a circumferential
groove a; of the cover B having pockets b, b; of the blocks E, E, adapted to
slide in the groove a in the rim A and having slots e, e, to receive the headed ends
of the wires C, C; of the right and left hand coupling screw D adapted to draw
the blocks E, E, together to bind the edges of the cover into the groove in the
rim; and of the air tube F, as set forth.
5. In a pneumatic tyre, the combination of the rim A of the ordinary crescent
section of the cover B having pockets b, b, formed in its edges; of the
wires C, C, located in the pockets,, in the edges of the cover and having their
ends threaded adapting them to be drawn together by a right and left hand
coupling nut to bind the edges of the cover to the rim and of the air tube F, as
set forth.
;
6. In a pneumatic tyre, the combination of the rim A of the ordinary crescent
section of the cover B having pockets b, b, formed in its edges; of the
wires C, C, located in the pockets b, b; of the blocks E, E, adapted to slide in
the rim A and having slots e, e, to receive the headed ends of the wires C, C; of
the right and left hand coupling screw D adapted to draw the blocks E, E,
together to bind the edges of the cover to the rim ; and of the air tube F, as set
forth.
7. In a pneumatic tyre, the combination of the rim A having a circumferential
groove a of the cover B having pockets b, b, formed in its edges; of the
wires C, C, located in the pockets, of the double block E fixed in the
groove a in the rim A and having slots e, e, etc. to receive the headed ends of
the wires C, C; of the right and left hand coupling nuts D, D, adapted to tighten
the wires C, C, to bind the edges of the cover into the groove in the rim ; and of
the air tube F, as set forth.
8. In a pneumatic tyre, the combination of the rim A with or without a

page_text: circumferential groove a; of the cover B having pockets b, b, formed in its edges
and having one or more spaces not reinforced by canvas; of the wires C, C, located
in the pockets b, b, in the edges of the cover and having their ends threaded; of
the right and left hand coupling nuts D, D, adapted to tighten the wires to bind
the edges of the cover in the rim ; of the air tube F; and of the canvas tube or
sleeve F', as and for the purpose set forth.
9. In a pneumatic tyre, the combination of the rim A with or without the
circumferential groove a; of the cover B having pockets b, b, formed in its edges
and having one or more spaces not reinforced by canvas; of the wires C, C,
located in the pockets b, b; of the blocks E, E, adapted to slide in the rim A and
having slots e, e, to receive the headed ends of the wires C, C; of the right and
left hand coupling screw D adapted to draw the blocks E, E, together to bind the
edges of the cover into the rim; of the air tube F; and of the canvas tube or
sleeve F, as and for the purpose set forth.
10. In a pneumatic tyre, the combination of the rim A, with or without the
circumferential groove a; of the cover B having pockets b, b, formed in its edges
and having one or more spaces not reinforced by canvas; of the wires C, C,
located in the pockets b, b; of the double block E fixed in the rim A and having
slots e, e, etc. to receive the headed ends of the wires C, C; of the right and left
hand coupling nuts D, D, adapted to tighten the wires C, C, to bind the edges of
the cover into the rim of the air tube F; and of the canvas tube or sleeve F', as
and for the purpose set forth.
Dated 01 x of December 1800
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.