Year: 1894

page_text: Date of Application, 29th Jan., 1894
Complete Specification Left, 21st Apr., 1894-Accepted, 28th Feb., 1895
I, VIRGINIO BERTOGLIO, of 8 Via S. Ugo, Genoa in the Kingdom of Italy,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to cyclometers and consists of an instrument which
indicates at any time the distance run by every kind of cycle.
The improved instrument comprises a cylindrical box in which a system of
multiplying gearing is enclosed, worked by an endless screw on the extremity of
which a small wheel is fixed.
The instrument supported by a curved arm with a joint at its middle is, by
means of the lower part of the arm, fixed to the fork of the front wheel of the
cycle, so as to cause the small wheel to remain in contact with the wheel against
which it is lightly forced by means of the spring.
As the wheel of the cycle turns round it imparts motion to the small wheel, in
consequence of the friction caused by the pressure of the spring; the endless screw
is made to revolve and transmits the movement to the gearing by which the two
hands are turned.
The hands can thus assume different positions corresponding to the different.
points of the graduation marked on the dial.
By the rotation of the wheel of the cycle and of the small wheel in contact
therewith any point of the periphery of the latter will go over the same space as
that of the former, and the endless screw which turns by means of the small wheel
will have for every turn, a proportional movement to the same circumference.
By means of the gearing which works like that of a watch, the hands will record
on the dial the distance run by the wheel to which they are fixed, that is to say,
they will indicate the space run by the endless screw, by the periphery of the
wheel and that of the periphery of the wheel of the cycle; consequently you can
read on the dial the distance run by the cycle.
The divisions on the dial are made in accordance to the relation existing between
the development of the circumference of the small wheel of the endless screw and
that of the gearing. The hand indicates on the outer graduation of the dial the
kilometres run from 1 to 10; the divisions between kilometres, are subdivided in
10 parts so as to represent 100 metres. The hand indicates on the inner graduation
the kilometres from 10 to 500, that is, every division of the inner graduation
corresponds to an entire turn of the outer graduation.
Dated this 29th day of January 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: J, VIRGINIO BERTOGLIO, of 8 Via St. Ugo Int., Genoa in the Kingdom of Italy,.
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 relates to cyclometers and consists of an instrument which
indicates at any time the distance run by a cycle or the like.
In the accompanying drawings,
Figure 1 is a plan of the complete instrument.
Figure 2 is a side elevation of the same.
Figure 3 is a cross section thereof.
Figure 4 is a similar view to Figure 1 with the dial removed to show the internal
mechanism and with some of the parts in section.
Figure 5 is a side elevation of Figure 4.
Figure 6 is a side elevation taken at right angles to Figure 5, and
Figure 7 represents a plan and side elevation respectively of a support for
carrying the instrument.
The improved instrument comprises a cylindrical box A (Figures 2, 3, 4, 5, 6)
in which a system of multiplying gearing is enclosed, worked by an endless screw B
(Figure 4), the extremity of which is provided with a small wheel C, as clearly
shown in Figures 1, 2 and 4. The diameter of this small friction wheel C which is
operated by the front wheel of the cycle, in the manner bereinafter described, has
no particular proportion to the diameter of the wheels of the vehicle and the
cyclometer can this be applied to any kind of cycle.
The instrument supported by a curved arm D (Figures 1, 2, 7) with a joint at
its middle is, by means of the lower part E of the arm (Figures 1 and 7), fixed to
the fork of the front wheel of the cycle, so as to cause the small wheel C to remain
in contact with the wheel against which it is lightly forced by means of the spring F
(Figures 1 and 7).
As the wheel of the cycle turns round it imparts motion to the small wheel C in
consequence of the friction caused by the pressure of the spring F; the endless
screw is, by this means, caused to revolve and transmits the movement to the
gearing by which the two hands L-1 (Figure 1) are operated. The hands can
thus assume different positions corresponding to the different points of the
graduation marked on the dial Q (Figure 1).
By the rotation of the wheel of the cycle and of the small wheel C in contact
therewith any point in the periphery of the latter will pass through the same
distance as that of the former, and the endless screw which is turned by means of
the small wheel C will have for every turn, a proportional movement to the same
circumference.
By means of the gearing which works like that of a watch, the hands will record
on the dial the distance run by the wheel to which the instrument is connected,
that is to say, the said hands will indicate such distance through the medium of the
endless screw, the periphery of the wheel C and the periphery of the wheel of the
cycle, so that the distance run by the cycle can be read off from the dial.
The dial is divided in accordance with the relation existing between the
development of the circumference of the small wheel C the endless screw and the
gearing. The hand which is carried by the wheel a indicates on the outer
graduation of the dial the kilometres run from 0 to 10; each kilometre being sub-
divided into 10 parts so that the whole will represent 100 metres. The hand L
which is carried by the wheel h iudicates on the inner graduation the kilometres
from 0 to 500, that is to say, each division of the inner circle of graduations

page_text: corresponds to an entire circle of the outer graduations so that, supposing the hands
to be in the position shown in Figure 1, the dial will indicate 142 kilometres. The
wheel e is provided with an endless screw B, which meshes with the wheel g. On
the shaft of the wheel g is the pinion g' which works with the wheel d, the pinion d¹
of this latter gearing with the wheel c, the pinion c¹ of which gears with the wheel b,.
and the pinion of this latter with the wheel a to which the hand is fixed. Below
the wheel a, and fixed thereto, is a pinion m which gears with the wheelf, this
gears by means of its pinion with the wheel e and finally the pinion e¹ of this
latter gears with the wheel h to which the hand L is secured.
All the above mentioned pinions being of the same diameter.
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 :-
First. A. cyclometer consisting of a cylindrical box or case containing clockwork
mechanism for operating the hands of the dial, an endless screw or worm and a
worm wheel for giving motion to the said clockwork, and a wheel attached to the
said endless screw which is adapted to run in contact with one of the wheels of the
cycle or the like, substantially as described and shown in the drawing.
Second. A cyclometer having an endless screw and worm wheel operated by a
wheel engaging with one of the wheels of the cycle or the like and an adjustable
bracket or arm for supporting the instrument in contact with the said cycle wheel,
substantially as described and shown in the drawing.
Third. A cyclometer constructed, arranged and operated substantially as
hereinbefore described with reference to the drawing.
Dated this 21st day of Auril 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.