An Improvement or Improvements in Tricycles and other Velocipedes.
Year: 1886

page_text: Date of Application, 21st July, 1886.
Complete Left, 16th Mar., 1887.
Complete Accepted, 19th Apr., 1887.
RESEPI
PROVISIONAL SPECIFICATION.
An Improvement or Improvements in Tricycles and other
Velocipedes.
We WALTER JOHN LLOYD and WILLIAM PRIEST both of Quadrant Works
Sheepcote Street Birmingham in the County of Warwick Manufacturers and
Copartners do hereby declare the nature of this Invention to be as follows:-
Our invention has for its object to facilitate the travelling of the tricycle or
velocipede in a curved path as for example on a racing track and consists in the
combination or arrangement of parts hereinafter described for effecting the said object.
We will describe our invention in connection with a tricycle.
Instead of making the two principal driving or travelling wheels of the tricycle of
the same diameter as usual we make the said driving wheels of somewhat different
diameters and we connect the divided shaft of the said wheels by means of balance
gear of any construction. The said balance gear may either be situated at the middle
of the divided shaft or near one end. The steering wheel is situated in a plane
midway between the planes in which the two driving wheels are respectively situated.
When a tricycle constructed according to our invention travels in a curved path the
smaller wheel of the two driving wheels rotates with an angular velocity greater than
that of the larger wheel the action of the balance gear permitting of the different
rates of rotation of the two wheels.
We ordinarily place the larger wheel on the right hand side of the rider as in racing
on curved tracks the vehicle is generally deflected to the left hand. Where however
the tricycle is to be used on a racing track where it has to be deflected to the right
hand we place the wheel of larger diameter on the left hand of the rider. When
the tricycle is deflected into a curved path the action of the balance gear is either
wholly suspended or much diminished and the vehicle sweeps along the curved path
with great readiness and without the scraping or grating action which attends the
travelling of an ordinary tricycle on a curved path.
TL 1000
W. T. WHITEMAN,
Agent for the Applicants.

page_text: We WALTER JOHN LLOYD and WILLIAM PRIEST both of Quadrant Works
Sheepcote Street Birmingham in the County of Warwick Manufacturers and
Copartners 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:-
Our invention has for its object to facilitate the travelling of the tricycle or veloci-
pede in a curved path as for example on a racing track; and consists in the combination
or arrangement of parts herein after described for effecting the said object.
We will describe our invention in connection with a tricycle.
Instead of making the two principal driving or travelling wheels of the tricycle of
the same diameter as usual we make the said driving wheels of somewhat different
diameters and we connect the divided shaft of the said wheels by means of balance
gear of any construction. The said balance gear may either be situated at the middle
of the divided shaft or near one end.
The steering wheel is situated in a plane midway between the planes in which the
two driving wheels are respectively situated.
When a tricycle constructed according to our invention travels in a curved path
the smaller wheel of the two driving wheels rotates with an angular velocity greater
than that of the larger wheel, the action of the balance gear permitting of the
different rates of rotation of the two wheels.
We ordinarily place the larger wheel on the right hand side of the rider as in
racing on curved tracks the vehicle is generally deflected to the left hand. Where
however the tricycle is to be used on a racing track where it has to be deflected
to the right hand we place the wheel of larger diameter on the left hand of
the rider.
When the tricycle is deflected into a curved path the action of the balance gear is
either wholly suspended or much diminished and the vehicle sweeps along the curved
path with great readiness and without the scraping or grating action which attends
the travelling of an ordinary tricycle on a curved path.
The accompanying Drawing represents in end elevation, partly in longitudinal
section, a portion of a tricycle (or other velocipede) constructed according to our
invention in combination with the arrangement of divided shaft and appliances of the
central balance gear mechanism described, represented and claimed in the specification
of Letters Patent granted to us on the 5th day of August 1884 No. 10954, but we
wish it to be understood that our present invention may be employed with other
kinds of central balance gear, or with balance gear situated near one end of the
divided shaft.

page_text: a,
b are the principal driving or travelling wheels of the tricycle (or other velocipede)
carried by the two parts a', 6 of the divided shaft of the tricycle, the parts of the
said shaft being connected together by the central balance gear at c.
The driving
wheel b is of somewhat larger diameter than the other driving wheel a. We ordinarily
make the diameters of the wheels a and b in the ratio of thirty six to forty inches but
we do not limit ourselves to any particular proportions between the two wheels.
By making the driving or travelling wheels of the velocipede of different diameters
and connecting them by balance gear as described and represented, the velocipede
when travelling in a curved path has the advantages over the ordinary velocipede
herein before pointed out.
Having now particularly described and ascertained the nature of our invention and
the manner in which the same is to be performed we declare that we claim as our
invention
Making the driving or travelling wheels of tricycles and other velocipedes of different
diameters and connecting them together by balance gear for the purpose and
substantially as herein before described and illustrated in the accompanying Drawing
1
T
11
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1
1005
WALTER JOHN LLOYD.
WILLIAM PRIEST.