Indicating the Speed of Bicycles, Tricycles, and other similar Machines during Running.
Year: 1888

page_text: Date of Application, 31st Aug., 1888
Complete Specification Left, 31st May, 1889-Accepted, 27th July, 1889
PROVISIONAL SPECIFICATION.
Indicating the Speed of Bicycles, Tricycles, and other similar
Machines during Running.
JOHN WILLIAM RICHARDSON "Penhurst" Fortis Green, East Finchley
London, N. Secretary to Public Company, do hereby declare the nature of this
invention to be as follows :-
An Instrument containing a Balance or Governor which revolves horizontally, and
is constructed in such manner that when at rest the weighted arms thereof lie close
to the centre of revolution. This Balance or Governor is driven and controlled
through a train of wheels or otherwise by the wheel or wheels of the bicycle, tricycle,
&c.; and when set in motion the weighted arms extend themselves and rise, tho
extent of such action being determined by the combined forces of centrifugal tension
and gravity. A collar which slides over the centre pin of the Balance or Governor
is raised or lowered directly by the rising or falling of the arms, and this collar carries
the arm of a lever which, through cogs, a chain, or otherwise, controls a pointer
moving over a dial, and thus indicates the speed at which the bicycle, tricycle, &c.
may be moving.
J. W. RICHARDSON.
COMPLETE SPECIFICATION.
Indicating the Speed of Bicycles, Tricycles, and other similar
Machines during Running.
JOHN WILLIAM RICHARDSON, 14 Baronsmere Road East Finchley N. Secretary,
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 :-
:-
An instrument indicating by a pointer and dial A the figure corresponding to the
speed per given time-as for instance the mileage per hour-at which a Bicycle
Tricycle or other similar machine may be travelling. The indicating pointer is moved
and controlled through lever D by a Balance or Governor B made to revolve in
a horizontal plane, such Balance or Governor being essentially in the form of a
suspended weight or weights, constructed in such manner that the centre of gravity
rises or falls, through the combined forces of centrifugal tension and gravity, as tho
speed of revolution is respectively increased or decreased.
The
This perpendicular variation in the centre of gravity of the Balanco or Governor,
due to its varying rate of revolution, is utilised to indicate through the pointer and
dial the speed of the travelling Bycicle, Tricycle or other similar machine.
Balance or Governor is driven at C through a train of wheels or other similarly
controlling action by one of the wheels of the Bicycle, Tricycle or other similar
machine, the gearing being a matter of adjustment to attain the desired object. For
example, let the driving wheel of the Bicycle, Tricycle, or other similar machine be of
a diameter of 30 inches, or a circumference of 7-854 feet, and make one revolution
in 535 of a second-equal to a speed of 10 miles per hour; the gearing connecting
the Balance or Governor with the driving wheel is arranged so that the
Balance or Governor is made to revolve at the speed necessary to raise the
lever D by means of the collar at E to the beight required to cause the pointer to
indicate the figure 10 on the dial A. The pointer itself is actuated through an
eccentric train to allow it to indicate in equal gradations on the dial.

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
A means of discovering at any moment the rate of speed at which a Bicycle,
Tricycle or other similar machine may be travelling.
Dated this 31st day of May One thousand Eight hundred and Eighty nine.