Year: 1896

page_text: Date of Application, 2nd June, 1896
Complete Specification Left 2nd Mar. 1897-Accepted. 2nd June, 1897
Date of Application, 2nd June, 1896
Complete Specification Left 2nd Mar. 1897-Accepted. 2nd June, 1897
I PIETRO SYLVA of 3 St. George's Buildings in the City of London, Merchant,
a subject of the Kingdom of Italy do hereby declare the nature of this invention
to be as follows:-
My new meter has for object to register the road that a vehicle has traversed.
This is obtained by reckoning the number of rotations of one of the wheels of
the said vehicle, the diameter of the wheel being known.
A sheet of drawings with this specification will illustrate the description.
The meter is more specially for the use of bicycles but can be adopted to any
other vehicle.
The piece 3 is fixed on the fork of the front wheel.
On the wheel is fixed, near the tyre and under it, a small piece of metal
protruding on the side of the wheel. The apparatus is so adjusted that at every
turn of the wheel, this metallic piece will act upon the sinall wheel 7 on the
lever 5. This lever 5 turns round a fulcrum 6 and works the lever Z. Every
time this lever Z is lifted it will force the cylinder K to turn on the shaft R and a
catch 1 acting on the wheel O will force this last wheel to deplace itself a distance
of one tooth.
A spring 4 forces back the piece K to its first position. By this oscillating
motion of the cylinder K the wheel O will make the screw M turn. This
screw M drives the wheel U. Attached to the said wheel U is the wheel V. The
wheel V by the intermediate wheel T drives the wheel S. The wheel S drives
the shaft 11 and this shaft 11 brings the motion to the wheels driving the index
fingers C. D. E. on the dial A. These last wheels are so arranged as to make the
first index mark one mile, the second 10 miles, the third 100 miles, this necessarily
by their combination with the shaft 11.
The wheels S. U. T. V. are fixed on a disk in the box W. The shaft 11 passing
through this disk. The pieces X serve to fix the disk to the box W. As the
wheels of vehicles have different diameters, the wheel S can be changed for
another wheel having a greater or smaller number of teeth.
The intermediate wheel T is fixed in a circular groove having for center the
center of the wheel V so that it will be in gear with the two wheels V and S even
if the diameter of the wheel S is changed by being properly adjusted.
By these dispositions this meter will be regulated to mark true for any wheel
it is set to work with as by changing one wheel S for another one and if necessary
changing also the wheel O it can be brought to work true with a wheel of any
diameter.
Dated this 20th day of May 1896

page_text: An Improved Cyclometer.
I PIETRO SYLVA of 3 St. George's Avenue, Aldermanbury, in the City of
London, Merchant, a subject of the Kingdom of Italy 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:-
My new meter has for object to register the distance a vehicle has travelled.
This is obtained by reckoning the number of rotations of one of the wheels of the
said vehicle, the diameter of the wheel being known. A sheet of drawing lelt
with the Provisional Specification will illustrate the description. The meter is
more specially for the use of bicycles but can be adapted to any other vehicle.
The piece 3 is fixed on the fork of the front wheel by the aid of pieces 8, 9
and 10. On the wheel is fixed near the tyre and under it, a small piece of metal
protruding on the side of the wheel. The apparatus is so adjusted that at every
turn of the wheel, this metallic piece will act upon the small wheel 7 placed on
the lever 5. The lever 5 turns round a fulcrum 6 and works the lever Z. Every
time this lever Z is lifted it will force the cylinder K, fixed on the piece P, to turn
en the shaft R and a pawl 1 acting on the wheel O will force this last wheel to
displace itself one tooth. A spring 4 forces back the piece K to its first position.
By this oscillating motion of the cylinder K, the wheel O will make the screw M
turn. This screw M is driven by the piece P and the sleeve N and drives the
wheel U. Attached to the said wheel U is the wheel V. The wheel V by the
intermediate wheel T drives the wheel S. The wheel S drives the shaft 11 and
this shaft 11 brings the motion to the wheels driving the index C. D. E. on the
dial A. These last wheels are so arranged as to make the first index mark one
mile for one complete revolution, the second index marking 10 miles in the same
conditions, and the third index 100 miles.
The wheels S. U. T. V. are fixed on a disk in the box W. The shaft 11 passing
through this disk. The pieces X serve to fix the disk to the box W.
As the wheels of vehicles have different diameters the wheel S can be changed
for another wheel having a greater or smaller number of teeth. The intermediate
wheel T is fixed in a circular groove having for center the center of the wheel V so
that it can be in gear with the two wheels V and S even if the diameter of the
wheel S is changed if it is properly adjusted.
By this disposition this cyclometer will be regulated to mark true for any wheel
it is set to work with, as by changing one wheel S. for another one and if necessary
changing also the wheel O it can be brought to work true with a wheel of any
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:
1. My new cyclometer as it has been described with its special pieces,
particularities and combinations.
2. The special manner in which I adjust this instrument to any wheel of any
diameter and make it work true as has been set forth.
Dated this First day of March 1897.
PIETRO SYLVA.