Improvements in Cyclometers, Counters, or the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cyclometers, Counters, or the like.
I, FRANS THEODOR OSSIAN CHYTREUS, of Boras, in the Kingdom of Sweden,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows: :-
This invention relates to a cyclometer or distance meter for cycles or other
purposes hereinafter referred which is distinguished from those hitherto known
by its simple construction and consequently small cost of production.
This apparatus has, like previous ones, a number of rings, which are provided
with numbers and are turned in such an order, that those numbers, which are
under an opening in a protecting cover arranged round the apparatus, indicate
the length of the distance traversed, when they are read together as one number.
This invention consists partly of a special transmission mechanism for turning
a number of number rings corresponding to the special numbers and partly of
the arrangement that these rings in connection with fixed intermediary rings
form a closed cylinder, so that the entrance of dirt and dust into the interior of
the apparatus is prevented. In the annexed drawing, Figs. 1 and 2 show the
apparatus in longitudinal section and cross section. Fig. 3 shows an end view.
Fig. 4 shows how the cyclometer is fixed on the velocipede and how it co-oper-
ates with the cycle wheel.
On an arm 1 fixed on the cycle is rivetted or fixed in any other manner a
bearing 24, in which a rotary axle 2 is seated. On the one end of this axle is
arranged a small wheel 21 which is provided with a number (for instance 4) of
projecting arms, which are moved in the same manner as in some previously
known cyclometers by a projection fixed on one of the spokes of the cycle so that
the axle 2 is turned for a quarter revolution for each complete revolution of the
cycle wheel.
With the axle 2 is solidly connected a disk 11, which is provided with a radial
groove b, in which runs a hook 15 and is guided by a spring 17 in the direction
against a ring 7 arranged outside the disk 11. The ring 7 is prevented from
The ring 7
turning by a pin 19 reaching into the mantle or by similar means.
is provided on a part of its periphery with a hollow, into which extends the hook 15
during a part of its movement. The ring 3 is provided with a number of
hollows a, into which the hook 15 moves successively and makes the ring 3 with
the disk li and the axle 2 turn during that part of the revolution, when the
hook is in the hollow c in the ring 7. The ring 3 is solidly connected or made
in one piece with a disk 12 which has exactly the same form as the disk 11 and
is provided with a hook 16 which is arranged in the same manner and lies like
the hook 15 during its rotation under influence of a spring against a stationary
ring 8. This ring 8 is like the ring 7 provided with a hollow which provides
for the co-operation of the following number-ring 4 with the ring 3 during a part
of the revolution of the last named ring, the hook 16 extending in the same
manner! like the hook 15 into one of the hollows a in the ring 4. The ring 4 is

page_text: connected with a disk 13, which is identical with the disk 12 and in the same
manner by means of a spring operated hook or driver the following number-disk
operates then like the ring 4 the following number-ring 6; and in this manner
one can thus operate any number of similar rings.
When the number of hollows a in each of the rings 3, 4, 5
is 10
and the hollows c in the rings 7, 8, 9 . . . . have an extension of a little more
than a tenth of the inner circumference, the ring 3 will be turned for each revolu
tion of the axle 2 or the disk 11 for 1/10 revolution whilst in the same manner
the ring 4 is turned 1/10 revolution for each whole revolution of the ring 3.
When thus each of the rings 3, 4, 5
is divided into 10 parts and is pro-
vided on the exterior border with the numbers 1-10 the numbers standing along
a generator line indicate in the same manner as an ordinary number the ones,
tens, hundreds etc. of the number of revolutions, which the axle 2 has made during
the distance passed.
The cyclometer shown in the drawing is especially suitable for a cycle, the front
wheel of which is of such a size, that it makes 40 revolutions per 100 meters.
As
it can easily be seen that the ring 3 will then make a revolution for each 100
meters. In this case the ring 3 can be provided with numbers, whereby the
number shown indicates, how many tens of meters one has ridden. But when the
size of the cycle wheel does not allow, the axle 2 during a certain length of dis-
tance, for instance 100 meters to make 10 revolutions or a whole multiple thereof,
one must provide the ring 3 with another number of hollows a, in which case it
is of course not convenient to provide numbers on the border of the ring 3. When
the cycle wheel makes for instance 47'5 revolutions per 100 meters, when the
wheel has a periphery of about 21 meters the ring 3 may make one revolution
for each 100 meters, by providing the wheel 21, which co-operates with the cycle
wheel with 5 pins or arms and the ring 3 with 19 hollows a the hollow e in the
ing 7 having a length of a little more than 2/19ths of the periphery. The
wheel 21 will make 47'5/5 = 19/2 revolutions for a distance of 100 meters, and
as further the ring 3 for each revolution of the axle is turned 2/19 revolutions,
it makes thus during the said length of distance just one revolution. In the same
manner calculations can be made for any peripheral length of the cycle wheel
for the number of pins on the wheel 2, the number of hollows a in the ring 3
and the length of the hollow c, so that the ring 3 makes one revolution during
a certain length of distance, for instance 100 meters. In such a case the ring 3
and the driver 15, which co-operates with the latter and follows with the axle 2,
serve of course only as a unit for the revolution of the ring 4, so that the last
named ring makes 1/10 revolution for a certain length of distance.
To adapt the described cyclometer for use with several cycles with unequal front
wheels, one can either use for each velocipede a reduction table or calculate the
length of the distance by multiplication of the number read on all the number
rings by a constant factor. This factor is the product of the number of pins o
arms of the wheel 21 and of the peripheral length of the cycle wheel (therefore
in the example shown in the drawing 4 times the pheripheral length of the front
wheel).
This described adding apparatus can of course be used in all cases where one
desires to count a number of successive movements. For instance, it can be used,
in order to calculate the speed of revolution of a stationary machine axle, to count
the number of telephonic conversations etc. For the latter purpose the apparatus
can be provided with a spring operated pawl, which is pressed down by means of
a pressing button, hook, or the like and engages with the wheel 21, so that this
wheel is turned revolution for each pressure.
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, London.

page_text: Improvements in Cyclometers, Counters, or the like.
I, FRANS THEODOR OSSIAN CHYTRÆUS, of Boras, in the Kingdom of Sweden,
Mechanical 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 a cyclometer or distance meter for cycles or other
purposes hereinafter referred to which is distinguished from those hitherto known
by its simple construction and consequently small cost of production.
This apparatus has like previous ones a number of rings, which are provided
with numbers and are turned in such order, that those numbers, which are
under an opening in a protecting cover arranged round the apparatus, indicate
the length of the distance traversed, when they are read together as one number.
This invention consists partly of a special transmission mechanism for turning
a number of number rings corresponding to the special numbers and partly of
the arrangement, that these rings in connection with fixed intermediary rings
form a closed cylinder, so that the entrance of dirt and dust into the interior of
the apparatus is prevented.
In the drawing left with my Provisional Specification
Figs. 1 and 2 show the apparatus in longitudinal section and cross-section.
Fig. 3 shows an end view.
Fig. 4 shows how the cyclometer is fixed on the velocipede and how it co-
operates with the cycle wheel.
On an arm 1 fixed on the cycle is riveted or fixed in any other manner a
bearing 24, in which a rotary axle 2 is seated. On the one end of this axle is
arranged a small wheel 21, which is provided with a number (for instance 4) of
projecting arms, which are moved in the same manner as in some previously
known cyclometers by a projection 26, fixed on one of the spokes of the cycle, so
that the axle 2 is turned for a quarter revolution for each complete revolution
of the cycle wheel.
With the axle 2 is solidly connected a disk 11, which is provided with a radial
groove b, in which runs a hook 15 and is guided by a spring 17 in the direction
against a ring 7 arranged outside the disk 11. The ring is prevented from
turning by a pin 19 reaching into the mantle or by similar means. The ring 7
is provided on a part of its periphery with a hollow, into which extends the hook 15
during a part of its movement. The ring 3 is provided with a number of
hollows a, into which the hook 15 moves successively and makes the ring with
the disk 11 and the axle 2 turn during that part of that revolution, when the
hook is in the hollow c in the ring 7. The ring 3 is solidly connected or made
in one piece with a disk 12, which has exactly the same form as the disk 11 and
is provided with a hook 16, which is arranged in the same manner and lies like
the hook 15 during its rotation under influence of a spring against a stationary
ring 8. This ring 8 is like the ring 7 provided with a hollow c, which provides
for the co-operation of the following number-ring 4 with the ring 3 during a part
of the revolution of the last named ring, the hook 16 extending in the same
manner, like the hook 15 into one of the hollows a in the ring 4. The ring 4 is
connected with a disk 13, which is identical with the disk 12 and in the same
manner by means of a spring operated hook or driver the following number-disk
operates then like the ring 4 the following number-ring 6; and in this manner
one can thus operate any number of similar rings.
When the number of hollows a in each of the rings 3, 4, 5
-
is 10

page_text: and the hollows c in the rings 7, 8, 9 . . . . have an extension of a little more
than a tenth of the inner circumference, the ring 3 will be turned for each revolu-
tion of the axle 2 or the disk 11 for 1/10 revolution, whilst in the same manner
the ring 4 is turned 1/10 revolution for each whole revolution of the ring 3.
When thus each of the rings 3, 4, 5 . . .
is divided into 10 parts and is pro-
vided on the exterior border with the numbers 1-10, the numbers standing along
a generator line indicate in the same manner as an ordinary number the ones,
tens, hundreds etc., of the number of revolutions, which the axle 2 has made during
the distance passed.
The cyclometer shown in the drawing is especially suitable for a cycle, the front
wheel of which is of such a size, that it makes 40 revolutions per 100 meters. As
it can easily be seen that the ring 3 will then make a revolution for each 100
meters. In this case the ring 3 can be provided with numbers, whereby the
number shown indicates, how many tens of meters one has ridden. But when the
size of the cycle wheel does not allow the axle 2 during a certain length of dis-
tance, for instance 100 meters to make 10 revolutions or a whole multiple thereof,
one must provide the ring 3 with another number of hollows a, in which case it
is of course not convenient to provide numbers on the border of the ring 3. When
the cycle wheel makes for instance 47'5 revolutions per 100 meters, when the
wheel has a periphery of about 2'1 meters, the ring 3 may make one revolution
for each 100 meters, by providing the wheel 21, which co-operates with the cycle
wheel, with 5 pins or arms and the ring 3 with 19 hollows a, the hollow c in the
ring having a length of a little more than 2/19ths of the periphery. The
wheel 21 will make 47'5/5 19/2 revolutions for a distance of 100 meters, and
as further the ring 3 for each revolution of the axle is turned 2/19 revolutions,
it makes thus during the said length of distance just one revolution. In the same
manner calculations can be made for any periphery length of the cycle. wheel
for the number of pins on the wheel 2, the number of hollows a in the ring 3
and the length of the hollow c, so that the ring 3 makes one revolution during
a certain length of distance, for instance 100 meters. In such a case the ring 3
and the driver 15, which co-operates with the latter and follows with the axle 2,
serve of course only as a unit for the revolution of the ring 4, so that the last
named ring makes 1/10 revolution for a certain length of distance.
To adapt the described cyclometer for use with several cycles with unequal front
wheels, one can either use for each velocipede a reduction table or calculate the
length of the distance by multiplication of the number read on all the number
rings by a constant factor. This factor is the product of the number of pins or
arms of the wheel 21 and of the peripheral length of the cycle wheel (therefore
in the example shown in the drawing) 4 times the peripheral length of the front
wheel.
This adding apparatus can of course be used in all cases, where one desires to
count a number of successive movements. For instance, it can be used in order
to calculate the speed of revolution of a stationary machine axle, to count the
number of telephonic conversations etc. For the latter purpose the apparatus
can be provided with a spring operated pawl, which is pressed down by means of
a pressing button, hook, or the like and engages with the wheel 21, so that this
wheel is turned 1/4 revolution for each pressure.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :-
1. An apparatus for adding a number of successive, uniform movements of a
machine part, for instance the number of revolutions of a cycle wheel, wherein
the carrying over is effected between a number of rings arranged in the known
manner to turn round an axle, or between the axle and one of the rings of a
radially displaceable driver 15 connected with a previous ring 3, 4. 5, or the axle 2,
which driver is pressed by a spring 17 against a stationary annular guiding
rail 7, 8, 9, 10 provided on a part of its periphery with a hollow or notches c,

page_text: whilst a successive ring 3, 4, 5, 6 is provided with cuts a, into which reaches the
driver 15 during its co-operation with the hollow c provided in the guiding rail,
so as to operate the following ring during a part of its revolution.
2. A form of construction of the apparatus as in Claim 1 wherein the said
driver 15 is arranged in a groove b, in a disk 11, 12, 13, 14 connected with the
corresponding ring 3, 4, 5, or the axle 2, which disk is surrounded by the annular
guiding rail.
3. In the apparatus as in Claim 1 the separation of the number rings from one
another by stationary rings lying against these rings, so that successive number
rings are prevented from coming into action with one another, and dust and dirt
are prevented from entering the apparatus.
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, W.C., London.