the Construction of instruments for Recording the Distance Travelled by Velocipedes and other Vehicles.
Year: 1885

page_text: the Construction of instruments for Recording
the Distance Travelled by Velocipedes and other Vehicles.
I THOMAS DUNN of 48 Threadneedle Street in the City of London Gentleman
do hereby declare the nature of my Invention for IMPROVEMENTS IN THE CON-
STRUCTION OF INSTRUMENTS FOR RECORDING THE DISTANCE TRAVELLED BY
VELOCIPEDES AND OTHER VEHICLES to be as follows:-
My invention relates particularly to the method of afixing an indicator to the
axle of a bicycle or tricycle wheel so that it may retain a certain position while
the axle revolves and actuates it.
Indicators so suspended to axles are generally provided with a sleeve divided to
enable it to be placed round the axle bearing a cam-worm or other contrivance for
actuating the indicator which sleeve has to be fixed securely to the axle by packing
it if necessary with leather paper or otherwise. This packing involves to anyone
unskilled in mechanical processes considerable trouble and often is not satisfactorily
accomplished.
My invention consists in prolonging each end of the sleeve about a quarter of an
inch, dividing these prolonged ends into about eight ears and bending them slightly
inwards. The points of these ears form a circle considerably smaller in diameter
than the diameter of the body of the sleeve and when the sleeve is fitted to an
axle they spring out so that the sleeve always fits without any trouble in fixing
any axle from the largest size it will take to one considerably smaller and is always
concentric with the axle. I find it most convenient to provide the sleeve with.
divided disks near each end hinged on one side and with ears having set screws
working in them on the other side. The side of the disks having the ears with set
screws it is naturally more convenient to make broader than the other side which
is hinged. Thus the disks constitute eccentrics by which an indicator may be
actuated and at the same time form guides to keep it in its place. These sleeves
with turned in ears and eccentric disks on the ends may also be very conveniently
employed for fixing hub lamps when an indicator may readily be employed in
conjunction with the lamp and actuated as before.

page_text: improvements in the Construction of in
the Distance Travelled by Velocipedes and other Vehicles.
I THOMAS DUNN of 48 Threadneedle Street in the City of London stockbroker
do hereby declare the nature of my invention for IMPROVEMENTS IN THE CON-
STRUCTION OF INSTRUMENTS FOR RECORDING THE DISTANCE TRAVELLED BY
VELOCIPEDES AND OTHER VEHICLES and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
My invention relates particularly to the method of affixing an indicator to the
axlo of a bicycle or tricycle wheel so that by the action of gravitation it may
retain a certain position while the axle revolves and actuates it.
Indicators so suspended to axles are generally provided with a sleeve divided to
enable it to be placed round the axle and bearing a cam worm or other contrivance
for actuating the indicator which sleeve has to be fixed' securely to the axle by
packing it if necessary with leather paper or otherwise. This packing involves to
any one unskilled in mechanical processes considerable trouble and often is not
satisfactorily accomplished.
My invention consists in prolonging each end of the sleeve which I make of
light drawn metal about a quarter of an inch, dividing these prolonged ends into
about eight ears and bending them slightly inwards. The points of these ears form
a circle considerably smaller in diameter than the body of the sleeve and when the
sleeve is fitted to an axle they spring out to its size so that the sleeve always fits
without any trouble in fixing any axle from the largest size it will take to one
considerably smaller and is always concentric with the axle. I find it most con-
venient to provide the sleeve with divided disks near each end hinged on one side
and with ears having set screws working in them on the other side. The side of
the disks having the ears with the set screws it is naturally more convenient to
make broader than the other side which is hinged. Thus the disks constitute
eccentrics by which an indicator may be actuated and at the same time they form
guides to keep it in its place. These sleeves with turned in ears and eccentric
disks on the ends may also be very conveniently employed for fixing hub lamps
when an indicator may readily be employed in conjunction with the lamp and
actuated as before.
Further to elucidate the nature of my said invention I affix hereto a sketch of
the apparatus which is too simple to require further explanation.
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
The prolongation of the ends of the sleeve and the forming of these ends of
turned in ears to fit automatically various sizes of axles concentrically.