Improvements in and relating to Elastic Tyres for Velocipedes and other Vehicles.
Year: 1898

page_text: Date of Application, 2nd May, 1898
Complete Specification Left, 16th Aug., 1898-Accepted, 4th Mar., 1899
Improvements in and relating to Elastic Tyres for Velocipedes
and other Vehicles.
A communication from abroad by GEORGE ERNEST SPICER, of 33, Westbourne
Street, East Prahran, in the Colony of Victoria, Gentleman.
I, WILLIAM LLOYD WISE, of 46, Lincoln's Inn Fields, in the County of London,
Consulting Engineer and Chartered Patent Agent, do hereby declare the nature
of this invention to be as follows:-
The object of my said invention is to provide an unpuncturable tyre and to
dispense with the necessity for an inner rubber skin or other similar pneumatic
device. The said invention consists of two spiral spring ribbons of steel or other
suitable metallic substance, one wound over the other, the spirals lying in reverse
diagonal position or angle, when such ribbons are of flat surface, but if, the under
ribbon be corrugated which it may be in order to strengthen same then the con-
volutions of both upper and under ribbon will lie in the same diagonal direction
or angle. The said tyre may consist of a pair of continuous spirals or convolutions
bent into the form of a ring or hoop or may be made in sections a series of which
will form the complete tyre. The tyre is secured by rivets to an annular trans-
verse rib-piece or pieces consisting of a flexible metal ribbon of similar but slightly
thicker substance than the tyre ribbon. The tyre is seated in and secured in
the rim by a series of stud-bolts passing through this rib-piece and under part
of the rim and tightened and secured by nuts. In this rim the spokes radiating
from the hub are secured in the usual manner. In order to dispense with these
stud-bolts a tie wire may be substituted therefor inserted in and around the inner
circumference of the tyre of such tic-wire screw threaded at the ends for
reception of and being connected and tightened by means of a coupling nut the
latter bored at intervals for the reception of a lever pin inserted through a slot
provided in the base of the rim. A pair of angle clips are inserted loosely in
the ends of the tyre such pins angled so as to project downwards through said
slot and form a bolt threaded for reception of a tightening nut by means of which
the respective ends of the tyre may be depressed brought together and retained
in position. To give additional strength to the tyre made in the
mode before described, an upper inner annular rib such as before
described may be secured by rivets 80 as to lie centrally around
the tyre immediately under the tread. The rim may be of wood, metal
or other suitable material and may also be strengthened by an annular rib such
as described, bored at intervals around its circumference for reception of such tyre
stud bolts if same be used. The tyre is made slightly larger in transverse circum-
ference than the rim so as to cause the tyre when forced into the rim to slightly
over bulge thereby increasing the resilient quality of the tyre. The said metallic
tyre is covered by thin rubber, canvas or other suitable fabric the edges of which
ovelap in the rim and are secured by said stud-bolts or otherwise by clamping

page_text: between the rim and tyre, and if found necessary by rubber solution or other
adhesive matter. To obviate any chafing or frictional injury to the cover a taping
of suitable fabric may be placed in a layer around the metal tyre so as to serve
as a seating or packing lying between the metal tyre and cover, or as a modification
a curved thin metal plate seating on the top of the spiral tyre and between the
spirals and the outer rubber cover may be used in place of such textile seating or
packing. In order that the nature of my said invention may be more clearly
understood I shall now describe same having reference to the accompanying draw-
ings (which are given by way of example only); throughout the figures similar
reference letters serve to indicate similar parts.
Fig. 1 is a sectional elevation of the tyre and rim, broken so as to show the
two spirals lying at reverse angles, the packing of fabric and outer rubber cover
and annular base rib.
Fig. 2 a longitudinal sectional view of the same shewing the tie-wire and
coupling nut, and the angle clips and tightening nut.
Fig. 3 a sectional elevation of the tyre fitted with a convexed or curved metal
plate serving as a washer between the metal ribbon spiral and the outer rubber
cover.
Fig. 4 a section of the double spirals removed from rim, the convolutions lying
at corresponding angles.
In Fig. 1, A is the rim, a the rib piece strengthening the rim. B the under
spiral ribbon, C the upper spiral ribbon secured by rivets to an annular band or
rib C, lying in reverse diagonal direction to B. 1) the binding of canvas taping
or other suitable fabric. E the outer rubber cover.
In Figure 2, A the rim, B the under spiral ribbon, C the upper spiral ribbon.
D the binding canvas taping or other suitable fabric, E the outer rubber cover,
F the tie-wire, G the coupling nut, H the clips for compressing and retaining the
ends of ribbons B and C by means of nut I.
In Fig. 3, B and C the respective metal ribbons A* the outer rubber cover,
E the convexed thin metal plate riveted to B and C, serving as a washer between
the outer cover and spirals to prevent injury to the outer cover, to be applied and
used in place of the tape binding D.
In Figure 4, B and C the said under and upper spiral showing the convolutions
lying at corresponding angles.
Dated this 5th day of August 1898.
Improvements in and relating to Elastic Tyres for Velocipedes
and other Vehicles.
A communication from abroad by GEORGE ERNEST SPICER, of 33, Westbourne
Street, East Prahran, in the Colony of Victoria, Gentleman.
I, WILLIAM LLOYD WISE, of 46, Lincoln's Inn Fields, in the County of London,
Consulting Engineer and Chartered Patent Agent, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:-
The object of my said invention is to provide an improved tyre for velocipedes,
motors, and other vehicles of the class in which an inner rubber skin or other
similar pneumatic tube or device is dispensed with. The said invention consists

page_text: of two helical or spiral spring ribbons of steel or other suitable metallic substance
-arranged or wound one over the other with the spirals lying in reverse angular
directions, that is to say one ribbon will be wound into a right hand helix and
the other wound to a left hand helix. The said tyre is preferably formed of a
pair of continuous spirals or helical ribbons bent into the form of a ring or
hoop, although it may be made in sections, a series of said sections forming the
complete tyre whilst in all cases the inner and outer ribbons are secured by rivets
to a flexible tie band or rib. The tyre is seated in and secured in the wheel rim
by a series of small bolts which pass through said tie band and through the under
part of the rim and said bolts are secured by nuts. In order to dispense with
said small bolts a tie wire may be substituted therefor it being inserted within the
tyre and caused to bind it upon the wheel rim by the ends of the tie wire being
screw threaded to receive a screw coupling nut and said coupling nut has holes
bored in it for the reception of a lever pin which is inserted through a slot pro-
vided in the rim. In place of said coupling nut one end of the wire may be
secured to a stud and the other end brought out through a hole in the tyre and
rim and made secure to a lug, or both ends may be brought out as hereinafter
explained. When the tie wire is not employed the meeting ends of the tyre are
secured by a small T head bolt. The aforesaid tie band or rib may either be
secured on the outermost part of the tyre and so form the tread for the wheel
or it may be within the tyre immediately under the tread or wearing surface or
as a further modification it may lie centrally around the tyre immediately ad-
jacent to the wheel rim and either within or outside the tyre the said tie band
or rib being rivetted to the ribbons as before described and serves to strengthen
the tyre. The said metallic tyre may be covered by thin rubber, canvas or other
suitable fabric the edges of which overlap in the rim and are secured by being
clamped between the wheel rim and tyre and further if found necessary by rubber
solution or other adhesive matter. To obviate any chafing or frictional injury
to the cover a taping of suitable fabric may be wound around the metal tyre so
as to serve as a seating or packing lying between the metal tyre and the cover.
In order that my said invention may be more clearly understood I shall now
describe same having reference to the accompanying drawings throughout the
figures of which similar reference letters serve to indicate similar parts.
Figure 1 is a longitudinal section of the flexible tyre shewing the two helical
or spiral ribbons lying at reverse angles and secured on the wheel rim by a tie
wire whilst the tyre is coated with a fabric or rubber cover.
Figure 2 a sectional view taken on line of Fig. 1 and shewing the tie-wire
coupling nut, and the tie band or rib as arranged on the outside of tyre next
the wheel rim.
Figure 3 a cross section of the tyre when the tie band or rib forms the tread
and the tyre is without a rubber or other cover.
Figure 4 a cross section of the tyre when the tie band or rib is within it next
the wheel rim and the tyre coated with a canvas taping and a rubber cover.
Figure 5 a similar view to Fig. 3 but in this instance, shewing the tie band
rib within the tyre under the tread.
Figure 6 a view shewing the modified means for securing the ends of the tie
wire and
Figure 7 shews the small T bolt which grips the ends of the flexible tyre.
In Figures 1 to 5 A is the wheel rim, B the inner spiral ribbon and C the
outer spiral ribbon secured by rivets c to the annular tie band or rib C. F the
tie wire. G the coupling nut. small hook bolts which grip the tie wire,
G¹ hole through rim, cover and tyre through which to pass a pin or lever to turn
nut G and E the outer rubber cover. D (Fig. 4) the binding of canvas taping
or other suitable fabric which lies between the outer surface of tyre and the
outer rubber cover E. J are the small bolts arranged at intervals around the
rim and used to secure the tyre and rim together.
In Fig. 6 the tie-wire F is shewn with its one end secured by an eye on the

page_text: pin whilst the other end passes to outside of rim through a hole A¹ and thence
passing through a hole in lug F3 and secured thereto by screw nuts or as an
alternative both ends of the tie wire may pass out as shewn by dotted lines.
In Fig. 7 the clip or small T bolt H is shewn and which is designed to grip
the end parts of the ribbons, when a tie wire is not employed, said clip or bolt
being secured by a nut.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
-
1. As an inner tyre for a velocipede or other vehicles two spiral or helical
spring ribbons such as B and C wound reversewise upon one another and secured
by rivets or the like to a flexible tie band or rib such as C substantially as
described and illustrated in the drawings.
2. As an inner tyre for the purpose specified two helical or spiral spring ribbons
such as B and C wound reversewise to and over one another and made of steel
or other suitable metallic substance and attached by rivets to an annular flexible
tie band or rib such as C¹ such inner tyre being made in one length or in sections
and secured in the wheel rim by screw bolts or by a tie wire such as F substan-
tially as described and illustrated in the drawings.
3. A metal tyre such as referred to in the preceding claims provided with means
for securing and retaining it in place in the wheel rim such as a tie wire Fand
a coupling nut such as G or a tie wire F and a pin such as F2 and lug such as
substantially as described and as illustrated in Figures 1 and 6 of the drawings.
4. As a complete tyre for the purpose specified the combination of the two metal
spiral or helical ribbons such as B and C rivetted to a tie band or rib such as C¹
a tie-wire such as F, a binding of canvas taping such as D and a rubber cover
such as E all assembled and secured substantially as herein described and as
illustrated in the drawings.
Dated this 16th day of August 1898.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent