Year: 1896

page_text: Date of Application, 11th July, 1895-Accepted, 19th June, 1897

page_text: the toothed wheel d! secured on the hollow spindle G which wheel gears with the
pinion do on the axis of the movable dial E¹ which indicates miles. At each
revolution of the wheel d" a pin e on it comes into action with a star wheel e¹ and
turns it one tooth to indicate hundreds on its movable dial; and a pinion e² on the
same spindle as the star wheel e actuates wheels e³, e, to indicate thousands on
their movable dials. For indicating thousands a repeating dial formed or secured
on the upper face of the wheel e is necessary, so that when the number on the true
indicating disc e disappears the number is repeated on the dial e thus keeping the
last number indicated in view until the one following is fully exposed. In the
actual apparatus the colour of the repeating numbers on the movable dial is black,
while the true indicators are in red.
The main spindle G is provided with two nuts g to form a key square for
adjusting when necessary, the movable dials, indicating the miles and tens.
to zero.
The hands f, f, f, of the fixed dial E can be placed at zero without opening
the glass. This is effected by securing the friction block F on the main spindle G
by means of a spring F which makes the block turn with the spindle G when the
latter is moved forward. The hand for indicating the furlongs is attached to this
block F so that when the latter is turned backwards said hand can be brought back
The pointers f, f, for the miles and tens respectively are secured to
their respective discs H, H', which have spring pawls k, k', mounted on them to
engage with ratchet wheels h, k, fixed on the spindles on which the discs are
respectively mounted. By this means these discs H, H¹, travel forward with said
spindles, but to bring the points f, f, which are secured to these discs back to
zero the pawl slips over the ratchet wheels. A spring pawl g is secured on the
friction block F so that when the latter is being turned to bring its pointer to
zero said pawl will engage with the projecting parts 92, 93, of the discs H, H', at
the same time turning these and bring the pointers 1, 3, back to zero.
By this means the distance travelled whether it refers to a single journey or a
season's running can be at once seen at a glance.
To allow adjustment of the movable dials the screw cap 3 can be readily
removed and the worm wheel e drawn out of gear with the wheel d*.
In order that regulation by change wheels may be effected, the bevel wheels are
not permanently fixed to their spindles, but are clamped by screws as shown
particularly at Fig. 6.
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:-
1. The combination of parts constituting the improved cyclometer hereinbefore
described with reference to the accompanying drawings.
2. In a cyclometer the arrangement of the actuating change wheel gear in
combination with a screw cap adapted to carry the said gear and fitted so as to be
capable of removal from the main casing substantially as described.
3. In a cyclometer the arrangement of the actuating gear c, c², c, e, in
combination with the indicating gear d'-d", substantially as described.
Dated this 10th day of July 1896.
WALLACE FAIRWEATHER,
Chartered Patent Agent,
62 St. Vincent Street, Glasgow, Agent for the Applicant.