Improvements in Pneumatic Tyres and Wheel Rims for Cycles and other Vehicles.
Year: 1896

page_text: Date of Application, 12th June, 1896
Complete Specification Left, 12th Apr., 1897-Accepted, 12th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres and Wheel Rims for Cycles and
other Vehicles.
JAMES WILLIAM BOYCE, of Ebenezer Villa, Whitecross Square Cheltenham,
in the County of Gloucester, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to pneumatic tyres, and wheel rims, and to methods of
attaching adjusting, or securing the said tyres to the said rims, and has for its object
the construction of either a temporary, or permanent tube, or air chamber-which
shall be independent of an inner tube-or of a cover, which may be accompanied
by an inner tube; the said tubes, or covers being, if desired, furnished with a
device for the prevention of puncture, or the minimization of its effects; and
whilst admitting of ready and easy manipulation- may be attached to the rim of the
wheel as hereinafter indicated, and be wholly, or partially secured against
circumferential creep upon the said rim, and be wholly, or partially independent of
inflation, in so far as regards the security of the attachment of the said tubes, or
cover to the metallic, or wooden portion of the wheel, known as the rim or felloe.
In the accompanying drawings Figs. 1, 3, 4, 5, 6, 7, 8, and 9, represent cross
sections of temporary tubes, and wheel rims; the form and detail of which may
hereafter be modified, if desired. The rim a Fig. 1 may have ridges a', indents, or
corrugations arranged longitudinally in the form of a spiral, or otherwise upon its
periphery; the commencing and terminal points of the said ridges, indents, or
corrugations being at any desired distance from one another, either longitudinally,
or laterally, or they may take the form of studs, and the rim may carry a boss, or
bosses for the purpose of admitting a screw, or screws, cotter pins, or equivalents,
or a spiral, or laminated, or plain spring, or equivalents. This rim is shewn
a Fig. 2 with its periphery exposed; one of the longitudinal ridges a¹ having
interstices, or interspaces, although both ridges may have such interspaces, if
desired. The hoop of vertical section is not illustrated in the drawings. It may
be deflected at one, or more points from the direct circumferential line, such.
deflexure being partially cut, or hollowed out U shape, and suitably arched, if
desired thereby effecting a starting point for the adjustment of the hoop, to the
rim of the wheel. This hoop would be secured to the edges of the tube by
means of the canvas, or other lining; and in attaching the said tube to the rim of
the wheel, the deflexure in the hoop would be placed at the commencement of the.
spiral like ridge on the rim, and would be simply pulled round on the periphery of
the said rim until the deflexure reached the terminal point of the said ridge and be
then secured as against circumferential movement, by means of a screw, or screws
passed through a small flange, or boss on the hoop, and at or near the aforesaid
deflexure thereon. The tubeb Fig. 1 and Fig. 5. may be composed of indiarubber,
or an equivalent, and be lined with canvas, or jean c, or their equivalents, the said
tube, and lining being disposed suitably in relation to each other, may carry in any
suitable manner; as regards a permanent tube, or at, or near each edge of a cover,
or a temporary tube; an endless band c¹ Fig. 1 and Fig. 5, or hoop of steel, of
flat, vertical, corrugated, or other convenient section; the said bands having
ridges Fig. 1 as shewn, to co-operate with the ridges a¹ Fig. 1, and Fig. 2 on the

page_text: rim, or the said bands may be slotted L shape for the purpose of co-operating with
the longitudinal slots in the rim a, Fig. 5, and the aforesaid tube may be furnished
with lips, or flaps c2 Fig. 5 of indiarubber, canvas, leather, or equivalents, or with a
portable endless cylinder d Fig. 1 of indiarubber; or its equivalent, and also with
internal ridges 6 Fig. 1 and Fig 5, if desired, said ridges being for the purpose of
retaining the band fand its lining 9 as against lateral movement within the tube.
This band is intended to act as a preventive of puncture, or to minimize the effects
thereof and may be composed of real, or mock chamois, or doeskin, or buckskin
which I chemicalize, or not as desired, and it may be lined or faced with serge, the
last named being likewise suitably treated, and coated with rubber in solution, or
otherwise, and be lapped, and be allowed to set in the form of a coil, or spiral
prior to its adjustment to the chamois. The band Fig. 5, need not be lined, but
the lining nay take the form of a serge band g Fig. 5 suitably coated which may
be placed within the tube as shewn. The tube b Fig. 3 may be provided with
internal ridges b', if desired, and at, or near its edges pieces of gutta percha cane
leather, or equivalents, as retaining pieces 63, the same being of any convenient
length, and partially enclosed by the canvas, or other lining c, or partially enclosed
by strips of cauvas, or leather, or equivalents which in turn may be solutioned, or
sewn, or otherwise attached to the said lining. The ends of every one of these
retaining pieces would project, and the maximum or overall length of every piece
would be greater than that of the slots, or incisions which would be made in the
endless retaining band h, which may be composed of raw, or girth hide, or other
suitable material; the said band having a strip, or band 2 of indiarubber, or
equivalent material partially solutioned to it, the edges of this strip, or band being
left free, and the centre thereof being allowed to float in order that when the tube
is being inflated, and the retaining pieces pull upon the aforesaid retaining band,
this indiarubber strip or baud may close up in due course, thereby preventing
egress of air. The band f, may be composed of indiarubber, or other light tubing,
and a chamois-skin, or serge band may, if desired intervene as between the said
band, and the lining c of the tube b. The retaining band may be serrated, and
that portion of the tube which rests upon it may be correspondingly moulded, if
desired. A depression, or depressions, or longitudinal, or lateral ridges may be
made in, or upon the bed of the rim a.
C
The tube 6 Fig. 4 may be thickened, or not, as desired, where it comes into
contact with the rim a, and it may be suitably lined thereat with extra folds of
canvas or the like, or with leather, or an equivalent, the sides of the tube being
turned inwards, and continued downwards to the interior of the tread of the said
tube, and there end in pockets e as shewn, thereby forming a central wall, and
furnishing a device as against puncture. The pockets may be composed of any
suitable material; and the lining c of the tube may be continued throughout, or
not, as desired. The head of the tube may be corrugated, or serrated, or have
a dovetail formation where it meets, or it may rest upon a serrated or a corrugated,
or slotted band, on the bed of the rim, the last named being provided with
either ridges, or depressions, if desired. Or the edges of this tube may be
provided with hooks, or eyes or equivalents which may be engaged by the interior
of the tread of the tube having a corresponding equipment in connection with
the lining, or in connection with an additional strip, or strips of canvas, or a
suitable band attached to the said lining, or otherwise, the pockets thereby being
dispensed with, if so desired, at this point, or this tube may be eyeleted, and laced
at, or adjacent to its edges, the said edges being provided with flaps, or flanges,
and then be turned in upon itself, or it may be laced at its head after its edges
have been turned inwards. These several arrangements may be effected prior to
the tube being placed in position upon the rim of the wheel; and such rim may
be provided with suitable depressions, or corrugations, or ridges to correspond
with suitable depressions in or projections upon the head, or the outer wall of
the tube. Two valves may, if desired, be used for the purpose of inflating
this tube.

page_text: The tube Fig. 6. may, if desired be provided with a band at the interior of the
tread for the prevention of puncture, such band being composed of chamois, or
doeskin faced with caoutchouc, which has preferably been set in the form of a
coil, or spiral, and which has the tendency to revert to such a form after it has
been untwisted; this caoutchouc would be preferably lined interiorly with serge
cut on the bias, and drawn taut. Endless steel, or other bands c' are enclosed by, or
otherwise secured to the lining c, and these bands are in turn provided with springs j,
suitably shaped, or tongued for the purpose of engaging with cavities or slots in
the rim a. The springs may be rivetted, or otherwise secured to the bands, and
the cavities, or slots in the rim may be cut by means of an U shape stamp or
equivalent, the partially seperated portion of rim being afterwards slightly bent, or
inclined inwards, in order to form a ledge for the extremity of the spring, or for a
tongue which may be carried thereby; the said springs thus being enabled to ride
upwards, as, and when pressure is applied to the sides of the tube after deflation,
for the purpose of releasing it from the rim. After the springs have risen from
the slots, a slight twist circumferentially will carry them clear, and release the
tube from its position. Flaps 2 may be solutioned, or otherwise secured to the
lining c.
с
The tube & Fig. 7 may be provided with internal ridges b', and a band having
a facing g of chamois, the said band riding upon the lining c of the tube, and being
provided with cells, of round, square, or other section, vertically disposed in relation
to the tube. This band may be composed of indiarubber, or other suitable
material.
The tube may be furnished with swelled or beaded edges 62 which fit concavities,
or depressions in the rim a, and are secured thereto by means of the endless spring
steel, or other retaining band h, which may be provided with a suitable slot, or
equivalent for the purpose of admitting the stem of the valve. This retaining
band may, if desired be corrugated or serrated longitudinally upon one half of its
surface, say from its centre to its offside; the said corrugations, or serrations
corresponding with like corrugations, or serrations upon the edges 62 of the tube, and
the band may also, if desired be slotted longitudinally, or perforated; or it may be
cut, or incised at points equidistant from one another; such cuts, or incisions being
disposed laterally, and extending from either one of the edges of the band to the
centre, or beyond, or extending from both the edges, in which last named event
hewever, one third of the width of the band may be left uncut, that is to say,
one sixth, or thereabouts upon each side of the central circumferential line may be
left plain. The plain, or corrugated, or the serrated band may be partially
displaced by lateral pressure when the tube is deflated. This band may be faced,
or lined with a suitable flexible lining or indiarubber, or equivalent flanges, or
flaps may be solutioned to it, if desired.
The tube & Fig. 8 may be constructed so as to overlap upon itself one of its
edges being suitably swelled, or beaded, an endless ridge of similar dimensions
being formed as an integral portion of the tube, and provided with a lip, or flap c²,
if desired, and located at any suitable distance from the opposite edge of the said
tube, the intention being that such edge shall, if so desired underlap the tread of
the tube, and thereby act as an additional preventive of, or safeguard, against
puncture, or that it shall minimize the effect thereof by virtue of the said edge
being free, and riding upon, and overlapping the chamois band f, or its equivalent,
said band being suitably lined or faced, if so desired, and in turn resting upon the
lining c of the tube. The endless spiral spring, or extensible core is portable,
and is placed in position prior to, or after the adjustment of the valve on the near
side of the rim a, the beaded or swelled edge of the tube being preferably placed
in position afterwards.
This tube may, if desired be provided with, and secured to hands of leather, or
equivalent material by means of the canvas, or other lining being sewn, or rivetted
thereto; either one of the said bands being slotted, or suitably eyeleted to receive
a rotating stud, or thumb piece carried by-and secured by means of rivets, or

page_text: otherwise to the corresponding band. Each band may be provided with flanges,
or lips made to cup, or incline of their own accord to the said band, in order that
the escape of air may be prevented, as the tube is being inflated, and after it is
inflated. The edges of this tube may be secured together prior to its adjustment
to the rim; that is to say, the stem of the valve having been inserted the studs-
the combined head and shank of which, may be somewhat of T shape-may have
their heads passed through, and turned across the slots, or eyelets, and if so desired,
be there locked by the action of a small spiral spring embracing the shank of the
stud, or by an equivalent; the tube may then be placed in position upon the rim,
and be forthwith inflated. The rim may be provided with suitable depressions, or
corrugations to admit the tube, or the projecting heads of the studs.
The tube b Fig. 9 is similar to the one shewn Fig. 4 with the exception that
the edges terminate in pockets e³, immediately under its head; the divided base of
the central wall thus, either directly, or indirectly forming the tread of the tube,
and the said wall may be dovetailed at this point; and for the purpose of forming
the actual tread, a raw hide, or girth hide, or indiarubber band, or cover for its
equivalent may surround the tread, and portion of the outer wall of the tube, as
shewn, being cemented thereto if desired; the edges of the band, or cover being
swelled, or carrying inextensible bands, or cores or equivalents, and terminating
at any desired point upon the walls of the cover, and inay be serrated, or corrugated
if so desired. The tube being provided with a suitable lining c either partially, or
throughout, may be eyeleted, or provided with hooks and eyes, or equivalents at,
or near the tread, or the edges for the purpose of being laced, or equivalently
strengthened, if desired. The tube may be suitably swelled at or near its edges, or
elsewhere, or extensible cores of gutta percha or indiarubber, or equivalents may
be provided for the purpose of resting upon the pockets, or upon the edges, or near
the edges of the tube. This tube may if desired be provided with two valves for
the purpose of inflation; and the rim a may be provided with suitable depressions,
or corrugations, or ridges to correspond with the head, or the outer wall of the
tube, that is to say with depressions therein, or projections thereon. This tube may
be secured by a band or hoop of vertical or other section the ends thereof being
suitably connected, and the band f may take the form of a flap, one edge being
permanently secured to the tube.
With a view to the prevention of side slip, the tubes, or covers may be provided
with an exterior ridge, or ridges on each side of the tread; such ridge, or ridges
being preferably of helical formation, or rope like, or as though composed of
twisted strands, or filaments; or a ridge on each side of the tread of the tube may be
of wave like formation, that is to say, it may be undulated in a lateral direction, not
vertically; or the rope like ridges may form the actual tread of the tube, if
desired.
Any of the tubes hereinbefore described may be provided with inner tubes, and
may carry any desireable form of valve.
Dated this Eleventh day of June One thousand eight hundred and ninety-six.
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tyres and Wheel Rims for Cycles and
other Vehicles.
JAMES WILLIAM BOYCE, of Ebenezer Villa, Whitecross Square, Cheltenham
in the County of Gloucester, Manufacturer, 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 :-
The invention relates to pneumatic tyres and wheel rims, and also to methods

page_text: minimization of its effects as hereinafter specified.
The tubes are intended to be wholly or partially free from circumferential creep
upon the wheel rims, and to be entirely, or partially independent of inflation iu so
far as relates to their security of attachment to the said wheel rims, the last named
being constructed of either metal, or wood or a combination thereof, as may be
desired.
In the accompanying drawings:
Fig. 1 is a cross sectional view of a temporary single tube as adjusted to the
wheel rim,
Fig. 2 is a like view of a modified form of temporary single tube, as adjusted to
the wheel rim.
Fig. 3 is a like view of a modified form of temporary single tube as adjusted to
the wheel rim.
Fig. 4 is a like view of the temporary single tube, illustrated by the last preceding
figure, with the peripheral rings disengaged,
Fig. 5 is a like view of a modified form of tube as adjusted to the wheel rim.
Fig. 6 is a like view of a modified form of temporary single tube as adjusted to
the wheel rim,
Fig. 7 represents a section of non slipping band.
In the aforesaid drawings, like letters indicate like or equivalent parts, the
drawings filed with my Provisional Specification being hereby cancelled.
In reference to Figure 1, the rim a, as and when constructed of a metallic
substance may be of solid, or hellow section, and he rolled or otherwise manufactured
by any process in vogue. The offside edge may be slightly elevated as shewn,
although this specific conformation is not absolutely essential in relation to this
particular rim.
The temporary inflatable tube b may be constructed of an endless band of
vulcanized caoutchouc of requisite diameter moulded to the desired form, and lined.
with jean c of suitable strength, or its equivalent, which may in turn be faced with
specially dressed real, or mock buckskin, doeskin, or chamois, in combination with
twill tissue, or otherwise, and coated, or filmed with caoutchouc thereby forming a
wall of desirable zones, or in lieu thereof the tube may be provided with a textile
base, and any suitable air proof coating, d.
The circumferentially inextensible endless metallic rings e and f may be
encompassed by the jean or equivalent lining, and be solutioned thereto. Prior to
their being enclosed by the aforesaid lining, they may, if desired, be dressel with a
preparation containing red lead, and the said lining may at this, or any other
pertion of its surface be coated with caoutchouc, gum mastic, and another ingredient
in the form of solution. The edge of the overlapping circumferentially inextensible
ringe may, if desired be provided with an elastic facing of suitable
formation.
The band g may be composed of real, or mock buckskin, doeskin, or chamois ;
and such band may be faced with a compound strip thus: A suitable length of
satin jean having been wound helically upon a round mandrel, and coated with
caoutchouc compound, a length of chemically treated seat serge, that is, serge of
special manufacture is laid over it, and coated with caoutchouc compound, and
solutioned along an imaginary circumferential line; aud thereupon is laid a
suitable length of calico, chamois lined, which is secured along the direct circum-
ferential line aforesaid. This compound strip having become set, it is thereupon
divided by means of a suitable cutter, along the circumferential line aforesaid, and
then adjusted to the airproof lining d at the tread of the tube b by means of
solution placed upon each edge of the strip, the convexity whereof, as taken from
the mandrel, being intended to face the tread of the tube, and to be secured along
each edge as herein before stated, thereby leaving the centre of this composite strip

page_text: free from adherence to the air proof lining at the tread of the said tube. In order
to place the tube in position upon the wheel rim the circumferentially inextensible
ringe is passed obliquely over the raised, or beaded edge of the circumferentially
inextensible ring f, the two edges being thereafter placed parallel, the inextensible
ring e may be passed back on to the inextensible ring f up to point of contact with
the upturned, or beaded edge aforesaid, which thereupon serves as a stop owing to
its being of larger diameter than the inextensible ring e. The tube b may now be
pressed on to the wheel rim and a screw passed through the said rim into the
endless ring, at a point opposite or thereabouts to the valve hole. The tube may
thenceforth be inflated when owing to the equality of pull by the walls of the tube
upon the inextensible rings e and the said rings are drawn tightly together and
constitute ample resistance to the lateral strain independently of the raised edge of
the wheel rim. The valve stem, and the opposite screw, or screws are sufficient to
prevent the tube creeping upon the wheel rim, and to prevent its moving laterally
off the said rim.
In the modified form of tyre Fig. 2 the depressed edge b' of the tube may be
constructed principally of pure caoutchouc in order that it may be extensible or
semi-extensible, and pliable, if desired, and consequently easier to attach, or detach
prior to the adjustment or after the removal, as the case may be of the circum-
ferentially inextensible retaining ring e which holds the edge & against lateral slip
from the depression in the wheel rim thereby constituting the tube independent of
inflation, in so far as relates to the security of its attachment to the wheel rim.
The inextensible ring e may, if desired carry a cot for the purpose of receiving
a screw by way of the rim.
In the modified form of tyre Fig. 3 the temporary tube is constructed upon the
principle that it may be opened at its periphery; the endless circumferentially
inextensible rings e and being the like of those herein before referred to in the
description of Fig. 1, and exercise pull upon each other in the like manner. The
inextensible ring e may be provided with a tread e' of leather faced with caoutchouc,
and it may be preferable to provide the aforesaid rings with a dressing of red lead
glue and another ingredient for the purpose of preventing or reducing liability to
oxidation. The principle of attachment of this temporary tube to the rim may
consist of its being sprung on, or, it may be cemented on, inasmuch as in the event
of its being punctured the method of manipulation for the purpose of obtaining
access to the interior of the tube is that of disengaging the inextensible rings e
and by pressing the former to the left, and the latter to the right that is to say
by pressing them in opposite directions, and then recrossing them at an angle. The
tapered facing c³ may be moulded to any desired shape in order to embrace the
wall of the tube when the endless rings e and f are adjusted, and thereby aid in
effecting a satisfactory temporary joint. In the event of an inner tube being used
the sheath may be lined with jean, and silesia.
In the modification of tube Fig. 5, the wall or ligature may, if desired, be
provided with an endless inextensible ring f preferably of somewhat greater width
than the endless ring e aud in any event the lower chamber j of this tube may, if
desired, be of a permanent character so that only the upper, or temporary chamber
is accessible, or need necessarily be accessible for ordinary purposes. The method
of manipulation is equivalent to that hereinbefore specified in reference to Fig. 3.
The valve connection may be effected through the lower or permanent chamber, to
the upper, or temporary chamber by means of flexible tube an flap valve, or in any
other convenient manner. In constructing the lower chamber it may if desired be
lined by one, or more lengths of jean, or equivalent fabric of requisite width coated
with caoutchouc compound, and afterwards solutioned to a real, or mockskin band
which may in turn be lined with fabric, if desired. The method of attachment of
the tube to the wheel rim may be the same as that adopted in connection with
the temporary single tube b Fig. 3. The chamber i may be of extended size
relatively.
In the tyre illustrated by means of Fig. 6 the inextensible endless rings e and f

page_text: may be faced with an endless strip of caoutchouc moulded slightly convex, if
desired, on one side, and extended laterally to a desirable edge.
The wheel rim requisite for use in connection with this particular tube has a flat,
or slightly concave platform or ledge along the centre of its circumference, the
depression, or groove at each side thereof being paramountly for the purpose of
affording extra air space in order to effect greater cushion area and backspring.
The valve may be adjusted to that portion of the tube which rests in the near side
channel or groove.
The tubes 6 Fig. 1, Fig. 2 Fig. 5, Fig. 6 may be provided with a non slipping
band g Fig. 7, moulded in the form of twisted strands or filaments. This band
may be moulded as an integral portion of the tubes, if desired. It will whilst not
unduly retarding the rotation of the wheel obtain desirable frictional hold of the
ground.
Screws may be used in connection with any of the inextensible rings with the,
exception of those shewn Fig. 5.
Any desirable valve may be used for the purpose of inflating the tubes, and such
valve may be connected thereto in any desirable manner.
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 combination with a temporary inflatable pneumatic tube such as b, enclosing
as to, and at one edge thereof, an endless circumferentially inextensible ring e, and
enclosing as to and at the fellow edge of said tube, an endless circumferentially
inextensible ring f having a raised, deflected, or swaged edge, or bead for the
purpose of engaging with, and temporarily retaining the aforesaid ring e; the said
ring having a suitable facing around it-any suitable valve for inflating
purposes-a wheel rim a having an elevated edge; the aforesaid temporary tube
being constructed, and detachably secured in position upon the said wheel rim
substantially as hereinbefore specified.
2. In combination with a temporary inflatable pneumatic tube such as 6 enclosing
as to and at one edge thereof an endless circumferentially inextensible retaining
ring e, for the purpose of holding against lateral movement off the wheel rim the
opposite depressed edge of the said temporary pneumatic tube-a valve for inflating
purposes-and a wheel rim a having a depression at, or near one edge thereof for
the purpose of affording lodgment for the aforesaid depressed edge of the
temporary pneumatic tube, which is thereby detachably secured in position upon
the said wheel rim substantially as hereinbefore specified.
3. In combination with a temporary inflatable pneumatic tube such as b divided
peripherally, and enclosing as to, and at one edge thereof an endless circum-
ferentially inextensible ring e carrying the band e', and enclosing as to and at the
companion edge of the said tube an endless circumferentially inextensible ring f
having a raised deflected, or swaged edge, or bead carrying the elastic facing c²
for the purpose of engaging with and temporarily retaining the aforesaid ring e-
an ordinary valve for inflating purposes-and a wheel rim a the aforesaid
temporary pneumatic tube being constructed, and permanently secured in position
upon the said wheel rim substantially as herein before specified.
4. In combination with a temporary inflatable pneumatic tube such as 6 divided
peripherally, and enclosing as to, and at one edge thereof an endless circum-
ferentially inextensible ring e carrying the band e¹ and enclosing as to, and at the
companion edge, of the said tube, an endless circumferentially inextensible ring f
having a raised deflected, or swaged edge, or bead carrying the elastic facing * for
the purpose of engaging with and temporarily retaining the aforesaid ring e-an
ordinary valve for inflating purposes and a wheel rim a, the aforesaid temporary
pneumatic tube, being constructed, and detachably secured in position upon the said
wheel rim substantially as hereinbefore specified.

page_text: 5. In combination with an inflatable pneumatic tube such as b, divided circum-
ferentially by means of a permanent wall, or ligature enclosing an endless circum-
ferentially inextensible ring f having a raised or deflected edge, or bead for the
purpose of temporarily engaging with, and retaining the inextensible ring e carried
in and by the edge of the temporary chamber of the aforesaid pneumatic tube,
the said inextensible ringe having an elastic facing ca valve for inflating
purposes and a wheel rim a, the said pneumatic tube being constructed and
permanently, or detachably secured in position upon the said wheel rim
substantially as hereinbefore specified.
6. In combination with a temporary inflatable pneumatic tube such as b enclosing
as to and at one edge thereof an endless circumferentially inextensible ring e and as
to the companion edge thereof an endless circumferentially inextensible ring f
baving a raised deflected or swaged edge, or bead for the purpose of engaging and
temporarily retaining the aforesaid ring e-a valve for inflating purposes-and
a wheel rim a having a groove, or depression at each side of a central circum-
ferential plain, or corrugated platform, or ledge, the aforesaid temporary tube
being constructed and detachably secured in position upon the said wheel rim, as
and for the purposes hereinbefore specified.
7. In combination with a temporary tube such as b Fig. 3 and Fig. 5-a valve
for inflating purposes, and a wheel rim a, as aforesaid an inner inflatable tube
carried within, and enclosed by the aforesaid temporary tube.
8. In combination with the aforesaid temporary tubes, and wheel rims the endless
composite band g¹ constructed as, and for the purpose herein before specified.
9. The combined pneumatic tyre, and wheel rim constructed substantially as
herein before described in reference to Fig. 1, Fig. 2, Fig. 3 Fig. 4 Fig. 5 Fig. 6,
and Fig. 7 of the accompanying drawings.