Wheels of Road Locomotive Engines.
Year: 1885

page_text: Wheels of Road Locomotive Engines.
I, THOMAS LAKE AVELING of Boley Hill House Rochester, Engineer do hereby
declare the nature of my invention for "IMPROVEMENTS IN WHEELS APPLICABLE
to be as
ESPECIALLY AS THE DRIVING WHEELS OF ROAD LOCOMOTIVE ENGINES
follows:-
In the specification of a former Patent granted to me N° 5617 in the year 1883
I described a wheel formed with an inner ring or tyre suspended within an outer
ring or tyre by coiled springs which were always in compression.
According to my present invention I apply the coiled springs in such a manner
that they act both in compression and extension so that when the wheel is used as
a driving wheel they all act together in driving in place of one half of them only,-
in this way the strain is equalised around the whole tyre and is not limited to a
portion of it only as heretofore.
To effect this I rigidly secure each end of each spring to the stem of a short eye
bolt in such a manner that the eye of the bolt projects but a short distance only
from the end of the spring and the eye bolt at one end I couple by a pin passing
through its eye to the outer end of the spokes of the inner wheel whilst the eye
bolt at the other end I couple by a pin passing through its eye to the outer tyre.
Preferably in order to secure each spring end to the stem of an eye bolt I screw
a short worm into the end of the screw like coil which forms the spring. The
worm has a hole bored length wise through it for the stem of the eye bolt to screw
into. Against the end of the spring I place a block or plate with a screw thread
on its face for the end of the coiled spring to bed against and then screw in the
stem of the eye bolt until a collar upon it comes against the outer end of the block
or plate and causes the end coil or coils of the coiled spring to be nipped between
the thread of the worm and the block or plate.
Other means than those above described for securing the spring ends to the eye
bolts may be adopted.

page_text: Improvements in Wheels, Applicable Especially as the Driving
Wheels of Road Locomotive Engines.
I, THOMAS LAKE AVELING of Boley Hill House Rochester, Engineer 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:-
In the specification of a former Patent granted to me N° 5617 in the year 1883
I described a wheel formed with an inner ring or tyre suspended within an outer
ring or tyre by coiled springs which were always in compression.
According to my present invention I apply the coiled springs in such a manner
that they act both in compression and extension so that when the wheel is used as
a driving wheel they all act together in driving in place of one half of them only
in this way the strain is equalised around the whole tyre and is not limited to a
portion of it as heretofore.
To effect this I rigidly secure each end of each spring to the stem of a short eye
bolt in such a manner that the eye of the bolt projects but a short distance only
from the end of the spring and the eye bolt at one end I couple by a pin passing
through its eye to the outer end of the spokes of the inner wheel whilst the eye.
bolt at the other end I couple by a pin passing through its eye to the outer tyre.
Preferably in order to secure each spring end to the stem of an eye bolt I screw
a short worm into the end of the screw like coil which forms the spring. The
worm has a hole bored lengthwise through it for the stem of the eye bolt to screw
into. Against the end of the spring I place a block or plate with a screw thread
or path on its face for the end of the coiled spring to bed against and then screw
in the stem of the eye bolt until a collar upon it comes against the outer end of the
block or plate and causes the end coil or coils of the coiled spring to be nipped
between the thread of the worm and the block or plate.
Other means than those above described for securing the spring ends to the eye
bolts may be adopted.
In order that my said invention may be most fully understood and readily
carried into effect I will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation partly in section of a spring wheel constructed in
accordance with my invention; the wheel here shown is suitable for a road
locomotive.
Figure 2 is a section on the lino A 12 in Timur 1 and

page_text: spring. hh are eye bolts with screwed stems passing through the end plates or
blocks gg and entering threaded holes in the centre of the worm pieces f. The
eye bolts are screwed in until the head of the bolt abuts on the end plate and the
outer convolution of the spring is nipped between the end plate and the worm.
The eye of the bolt h at one end of each coiled spring is received into a recess in
one of the blocks c¹ and is secured by a joint pin i. The eye at the other end of
the coiled spring enters between the parts of one of the brackets d¹ and is secured
by a joint pink.
It will be observed that when this spring wheel is at work the weight upon the
wheel is sustained by the springs on one side of the wheel acting in tension and by
the springs on the other side acting in compression.
Also that when the wheel is
operating as a driving wheel the springs will be either in compression or tension
according to the direction of the movement.
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. A spring wheel with an inner ring or tyre suspended within an outer ring or
tyre by coiled springs arranged around the wheel and acting both in compression
and extension substantially as described.
2. The means herein described for connecting the coiled springs with the inner
and outer parts of the wheel.
3. My improved spring wheel substantially as described and represented by the
annexed drawings.