Improved Elastic Tyres for the Wheels of Velocipedes and other Carriages.
Year: 1894

page_text: Date of Application, 10th Sept., 1894
Complete Specification Left, 3 st May, 1895-Accepted, 6th July, 1895
PROVISIONAL SPECIFICATION.
Improved Elastic Tyres for the Wheels of Velocipedes and other
Carriages.
I, BENJAMIN JOSEPH BARNARD MILLS, of 23 Southampton Buildings, in the
County of London, Patent Agent, do hereby declare the nature of this invention,
(a communication to me from Paul Benôit Carante, Mechanic, and Joannes
Bocuze, Metal Drawer, both of Lyons, in the Republic of France), to be
as follows:-
The present invention is an improvement on the tyre forming the subject of my
application for Patent dated July 13, 1894, No. 13591, in which the weight is
supported by steel ribands coiled into ring form and interposed between two
concentric felloes.
The improvement consists in adding to these springs, cylindrically coiled springs,
more especially intended to support the weight, whilst the steel ribands, modified
in their form, serve more particularly to hold the movable felloe in the plane of the
wheel.
The interior rim or felloe is fixed to the hub or nave in the usual way by spokes.
The exterior rim or felloe is a simple flexible ring covered with rubber or leather
for the running surface. The space between these two rims or felloes is occupied
by a series of springs formed of undulated steel ribands having the same breadth as
the rims or felloes. Each spring forms one undulation and its extremities overlap
the extremities of the next on either side. These overlapping ends are traversed
by two rods which pass through long openings or slots, which allow them to slide
one upon the other to allow of the flattening of the rim upon the ground. The rods
are fixed to the exterior rim or felloe and pass freely through the inner rim beneath
which they are held by nuts; the rods have around them cylindrically coiled
springs, which press at one end against the outer rim and at the other end on small
collars which pass through the openings in the riband springs and rest upon the
inner rim or felloe. The object of these collars is to give free action to the sliding
of the undulated springs by preventing them from being held tight to the inner rim
by the cylindrically coiled springs. Other rods are mounted in a similar manner
between the preceding ones and are also furnished with cylindrically coiled springs ;
these latter press directly against the inner rim and against the undulated springs.
The nuts serve to centre the exterior rim which thus remains perfectly circular in
all the parts which are not depressed by the weight of the rider; this depression is
further limited to the amount of depression of which the cylindrical springs are
capable until their coils touch, which amount is easy to determine when the springs
are being manufactured. The undulated springs cannot therefore get out of shape
o a very exaggerated amount, and as the cylindrically coiled springs are calculated
o support most of the weight, the action of the undulated springs is limited very
early to holding the movable or outer rim against lateral or circumferential
leviations, which the cylindrically coiled springs alone are unable to prevent.
The improvements are applicable to the wheels of all classes of vehicles by
mploying springs of suitable strength and dimensions.
Dated this 10th day of Santambon 1001

page_text: COMPLETE SPECIFICATION.
Improved Elastic Tyres for the Wheels of Velocipedes and other
Carriages.
I, BENJAMIN JOSEPH BARNARD MILLS, of 23 Southampton Buildings, in the
County of London, Patent Agent, do hereby declare the nature of this invention,
(a communication to me from Paul Benoit Carante, Mechanic, of 98 Rue Tronchet,
and Joannès Bocuze, Metal Drawer, of 22-24 Rue de Crillon, both of Lyons, in
the Republic of France) and in what manner the same is to be performed, to be 5
particularly described and ascertained in and by the following statement :-
The present invention is an improvement on the tyre described in the Specification
of Patent dated July 13, 1894, No. 13591, in which the weight is supported by
steel ribands coiled into ring form and interposed between two concentric felloes.
The improvement consists in adding to these springs, cylindrically coiled springs, 1
more especially intended to support the weight, whilst the steel ribands, modified in
their form, serve more particularly to hold the movable felloe in the plane of the
wheel.
Part of a velocipede wheel constructed according to the present invention is
represented in the accompanying drawings, which are made to the scale of half full
size.
'
Fig. 1 is an exterior view of a portion of the felloe.
Fig. 2 is a transverse section on the line 1. 2 of Fig. 1.
Fig. 3 is a section on the line 3. 4 of Fig. 1.
The interior rim or felloe A is fixed to the hub or nave in the usual way by:
spokes B B. The exterior rim or felloe C is a simple flexible ring covered with
rubber or leather for the running surface. The space between these two rims or
.felloes is occupied by a series of springs D D formed of undulated steel ribands
having the same breadth as the rims or felloes. Each spring forms one undulation
and its extremities overlap the extremities of the next on either side at the
points E E of the interior felloe; at the same places these overlapping ends are
traversed by two rods G G which pass through the long openings or slots shown in
Fig. 2, which allow them to slide one upon the other to allow of the flattening of
the rim upou the ground. The rods G G are fixed to the exterior rim or felloe C
and pass freely through the inner rim A, beneath which they are held by nuts HH';
the rods have around them cylindrically coiled springs, which press at one end
against the outer rim C and at the other end on small collars E E which pass
through the openings in the ribana springs D and rest upon the inner rim or
felloe A. The object of these collars is to give free action to the sliding of the
undulated springs D by preventing them from being held tight to the inner rim by
the cylindrically coiled springs. Other rods G G are mounted in a similar
manner between the preceding ones and are also furnished with cylindrically coiled
springs these latter press directly against the inner rim A and against the
undulated springs D. The nuts H H' serve to centre the exterior rim which thus
remains perfectly circular in all the parts which are not depressed by the weight of
the rider; this depression is further limited to the amount of depression of which
the cylindrical springs are capable until their coils touch, which amount is easy to
determine when the springs are being manufactured. The undulated springs D
cannot therefore get out of shape to a very exaggerated amount, and as the
cylindrically coiled springs are calculated to support most of the weight, the action
of the undulated springs D is limited very nearly to holding the movable or outer
rim C against lateral or circumferential deviations, which the cylindrically coiled
springs alone are unable to prevent.
;
The improvements are applicable to the wheels of all classes of vehicles by
employing springs of suitable strength and dimensions.

page_text: 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
CLAIM.
In elastic tyres for the wheels of velocipedes and other carriages, the combination
of a series of cylindrically coiled springs with a series of undulated springs made of
sheet steel placed between two concentric rims, the exterior rim being flexible; the
cylindrically coiled springs, placed between the two rims, being destined more
especially to carry the weight, and the undulated springs to prevent deviations of
the exterior rim, substantially as herein shown and described.
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.