Rotary Cyclometer.
Year: 1890

page_text: Date of Application, 2nd Sept., 1890
Complete Specification Left, 9th Feb., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
Rotary Cyclometer.
NATHANIEL ALLAN, the Ferry, Middlesbrough, Ferry Superintendent, JOHN
LAKIN, 20, Emerald Street, Middlesbrough, Engineer, do hereby declare the nature
of this invention to be as follows :-
The instrument consists of a metallic case, enclosing index to register up to one
5 thousand miles. The motive power being a ball revolving in a pocket inside of the
ease striking a lever also inside of the case each revolution of the cycle wheel the
instrument to be attached to the hub of the cycle by means of a movable slide held
in place by an internal bolt, no tools or screws being used in securing it to the cycle
hub nor is it necessary to remove the cycle lubricator or cover.
Dated this 30th day of August 1890.
NATHANIEL ALLAN.
JOHN LAKIN.
COMPLETE SPECIFICATION.
Rotary Cyclometer.
NATHANIEL ALLAN, the Ferry, Middlesbrough, Ferry Superintendent, Jons
LAKIN, 20, Emerald Street, Middlesbrough, 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 :-
This invention has for its object a rotary cyclometer particularly adapted for
"safety" bicycles tricycles or similar machines running on wheels of small
diameter, and equally suitable for “ordinary" bicycles, tricycles, carriages and
vehicles of every description running on wheels of large or small diameter.
The construction and arrangement of our rotary cyclometer is at once simple and
effective, and is as follows:-
Enclosed in a metallic or other case, is a decimal index registering from one tenth
of a mile up to one thousand miles, and, driven by a ball running in a pocket as
shewn on plan (Figs. 3. 4). The cyclometer revolving with the wheel of the
bicycle or other conveyance in the direction indicated by an arrow (Fig. 3.). The
ball (a) strikes the lever (c) each revolution of the wheel, the lever being brought
back into position by the spring (d). The lever is pivoted on the axle of the
ratchet wheel, the pillars (4) regulate the travel of the lever and holds the end of
the ratchet spring, (P). The number of teeth on the ratchet wheel being
regulated according to the size of the wheel of the bicycle or other conveyance to
which it is to be attached. The ratchet wheel marked (6) makes one revolution
each tenth of a mile. The register as shewn on Fig. 1. indicates thirty-five miles
and two and a half tenths of a mile, the index is covered with glass to prevent
dust or other matter from getting to the wheels of the cyclometer. The cyclometer
is secured to the hub or axle of the bicycle or other conveyance, the hub or axle of
which revolves with the wheel of such bicycle or conveyance, by means of a
moveable slip containing a double automatic bolt (4) as shewn in sections
Figs. 7. 8. 9. 10 on accompanying drawings.
Figs. 1. 2 of the accompanying drawings shew views of elevation.
Figs. 3. 4 shew plan views.
Fig. 5 shews a sectional view through plan marked "L. R."
Fig. 6 shews inverted view of lever and ratchet wheel.
Figs. 7. 8. 9. 10 shew sectional views of moveable slip.
Simile lettere indicate commanding

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
A rotary cyclometer having its motive power within itself (viz.) a ball revolving
in a pocket and acting on a lever arranged and fitted in the manner hereinbefore
described and shewn.
Dated this Seventh day of February One thousand eight hundred and
NATHANIEL ALLAN.
JOHN LAKIN.