Improvements in Wheels for Velocipedes and Road Carriages.
Year: 1888

page_text: Date of Application, 1st Dec., 1888
Complete Specification Left, 10th Aug., 1889-Accepted, 14th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Velocipedes and Road Carriages.
We WALTER JOHN LLOYD and WILLIAM PRIEST trading as the Quadrant Tricycle
Company of Sheepcote Street Birmingham in the County of Warwick Velocipede
Manufacturers do hereby declare the nature of this Invention to be as follows:-
The object of our invention is so to construct the wheels of velocipedes and road
carriages that the tremor or vibration communicated to the wheels in travelling over
rough or uneven roads shall not be transmitted or transmitted in a reduced degree to
the velocipede or carriage supported upon the said wheels.
This object we effect by constructing and arranging the parts of the wheels in the
following manner.
Instead of using a single rim as usual we construct the wheel of a double rim that
is of an inner rim made of a flat or other shaped bar to which rim the metallic spokes
are connected in the usual way and of an outer concentric rim of considerably larger
diameter than the said inner rim.
In the case of velocipede wheels we preferably make the outer rim of a hollow or
trough figure for receiving the india rubber tyre or other tyre. By means of radial
coiled steel springs between the two rims the outer rim is secured to and supported
normally at a uniform distance from the inner rim. The supporting and connecting
radial coiled springs are situated at a short distance apart. The said springs are by
preference alternately inclined in opposite directions to the plane passing at right
angles through the axis of the wheel. This is effected by connecting the outer ends
of the springs to the middle of the outer rim while the inner ends of the said
springs are alternately connected to opposite sides of the inner rim. The said springs
may however all be in the same plane with the same or nearly the same effect.
When a wheel constructed according to our invention travels over an uneven road
or meets with obstacles the jerk or tremor is borne mainly or principally by the outer
supported rim in consequence of the yielding of the springs and the motion thus
communicated to the outer part of the wheel is not transmitted or only transmitted
in a slight degree to the inner part of the wheel to which the axle of the vehicle is
connected. Hence the vehicle travels with great smoothness and the rider is not
subjected to the discomfort which ordinarily attends the travelling of a vehicle over
bad or uneven roads.
D
.
1
D
1
1000
W. T. WHITEMAN,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Wheels for Velocipedes and Road Carriages.
We WALTER JOHN LLOYD and WILLIAM PRIEST trading as the Quadrant Tricycle
Company of Sheepcote Street Birmingham in the County of Warwick Velocipede
Manufacturers do hereby declare the nature of our invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement :—
The object of our Invention is so to construct the wheels of velocipedes and road
carriages that the tremor or vibration communicated to the wheels in travelling over
rough or uneven roads shall not be transmitted or transmitted in a reduced degree to
the velocipede or carriage supported upon the said wheels.
This object we effect by constructing and arranging the parts of the wheels in the
following manner.
Instead of using a single rim as usual we construct the wheel of a double rim

page_text: that is, of an inner rim made of a flat or other shaped bar to which rim the
metallic spokes are connected in the usual way and of an outer concentric rim of
considerably larger diameter than the said inner rim. In the case of velocipede
wheels we preferably make the outer rim of a hollow or trough figure for receiving
the india rubber tyre or other tyre. By means of radial coiled steel springs between
the two rims the outer rim is secured to and supported normally at a uniform distance
from the inner rim. The supporting and connecting radial coiled springs are situated
at a short distance apart. The said springs are by preference alternately inclined
in opposite directions to the plane passing at right angles through the axle of the
wheel. This is effected by connecting the outer ends of the springs to the middle of
the outer rim while the inner ends of the said springs are alternately connected to
opposite sides of the inner rim. The said springs may however all be in the same
plane with the same or nearly the same effect.
Figure 1 of the accompanying Drawing represents in front elevation and Figure 2
in side elevation, partly in section, a wheel for a velocipede the parts of the said wheel
being constructed and arranged according to our invention; Figure 3 represents a
front elevation of a portion of the same drawn to a larger scale and Figure 4 represents
a section of Figure 3.
The same letters of reference indicate the same parts in the several Figures of the
Drawing.
The said wheel consists of an inner metallic rim a made of a trough shaped bar,
but it may be made of a flat bar or other shaped bar, and an outer concentric trough
shaped metallic rim b. In the trough of the rim 6 the ordinary india rubber tyre c is
fitted. To the inner rim a and the hub d of the wheel the metallic spokes e e are
connected in the usual way; ff are the radial coiled steel springs situated between
and connected at a short distance apart to the two rims a and b. By means of the
said radial coiled springs f,f the outer rim 6 is secured to and supported normally at
a uniform distance from the inner rim a. The supporting and connecting radial coiled
springs, fare secured to the two rims by hooks, loops and eyes in the manner
represented in the Drawing. That is to say, along the edges of the inner rim a eye
pieces g g are made to which the inner ends of the coiled springs ffare hooked and to
the middle of the outer rim b, loops h, h are rivetted to which loops the hooks on the
outer ends of the coiled springs ff are hooked in the manner best seen in Figures 3
and 4. By the combination of the parts described and represented the outer
supported rim 6 of the wheel is made capable of yielding under the conditions
hereinafter pointed out.
The connecting and supporting coiled springs ff are alternately inclined in
opposite directions to the plane passing at right angles through the axle of the wheel.
To effect this the outer ends of the springs f, fare connected to the middle of the
outer rim b and the inner ends of the said springs are alternately connected to opposite
edges of the inner rim a as represented. We do not however limit ourselves to this
arrangement of the supporting and connecting radial coiled springs as the said springs
may all be arranged in the same plane that is, the inner ends of all the springs may
be connected to loops or other connections at the middle of the inner rim a.
When a wheel constructed according to our invention travels over an uneven road
or meets with obstacles, the jerk or tremor is borne mainly or principally by the outer
supported rim b in consequence of the yielding of the springs ff and the motion thus
communicated to the outer part of the wheel is not transmitted or only transmitted in
a slight degree to the inner part a e d of the wheel to which the axle of the vehicle
is connected. Hence, the vehicle travels with great smoothness and the rider is not
subjected to the discomfort which ordinarily attends the travelling of a vebicle over
bad or uneven roads.
In applying our invention to wheels for road carriages, the outer rim may be con-
structed for receiving an india rubber tyre as described and represented with respect
to a velocipede wheel; or an india rubber tyre need not be used, in which case the
outer rim may be made of a slightly convex metal tyre or of a metal tyre supported
by wooden felloes similar to an ordinary road wheel.

page_text: Having now particularly described and ascertained the nature of our inven-
tion and the manner in which the same is to be performed we declare that we
claim as our invention of " Improvements in wheels for velocipedes and road
carriages":
The combination in the said wheels of two concentric rims the outer rim being
secured to and supported normally at a uniform distance from the inner rim carrying
the metallic spokes by radial coiled steel springs connected to the two rims for the
purpose and substantially as hereinbefore described and illustrated in the accompanying
Drawing.
Dated the Second da
1000
WALTER JOHN LLOYD.
WILLIAM PRIEST.