Year: 1889

page_text: Rture of us y
My invention relates to repeating watches, and particularly to the following three
parts of the repeating mechanism :
1st. Arrangement of the motor-mechanism of the repeating work,
2nd. Unlocking devices,
3rd. Speed regulator of the repeating work.
In the accompanying drawings, fig. 1 is a plan, on an exaggerated scale, of the
repeating-mechanisin as it would appear when the dial is removed, in this figure the
mechanism is at rest. Fig. 2 is a plan, and fig. 3 a cross-section of the regulator
drawn twice the scale of fig. 1.
said
A is the axis to which is affixed the main-spring of the repeating work;
spring is placed in a recess in the plate underneath the spring barrel bridge.
The action of the main-spring is transmitted to a toothed segment B which rotates
about the axis A, by means of a toothed wheel C fixed to said axis A, and by
means of a click D which is affixed to the toothed segment B. This click allows of
the tension of the spring, when at rest, to be regulated at will. The segment B has
an arm b, projecting out of the watch so as to be acted upon by hand for causing
The said arm may be replaced by a
the striking of the sounding mechanism.
rack E gearing into a toothed part of B, as shown by dotted lines in fig. 1, in order
that it may be acted upon by means of a pusher.
The teeth of B engage with those of a rack F which turns freely about an axis G,
which carries, at the same time, a third rack H having a doubled-armed spring h, and
a piece I having a spring i. Said piece I is a part of the unlocking-device, as will
be explained hereinafter. The springh connects the two racks Hand F with one
another, but in such a manner as to allow the rack F to be free to continue to
advance under the action of B when the arm bis acted upon, and when the rack H
is stopped, as hereinafter described. The result is that the pin of the rack-lever F
is able to act upon the unlocking-lever I.
The rack H actuates a pinion J fixed upon an axis K which likewise carries a
piece L having twelve click-teeth which act upon the hour striker N, and bears a pin
for acting upon the toothed segment M, which, in its turn, drives the lever O, having
a spring o. The lever O, pivotted at W, is provided with click-teeth m acting
upon the quarter strikers P and Q, and with click-teeth n acting upon the minutes
striker Q.
Said
A click-toothed rack S having its pivot at W, is intended to determine the number
of teeth n which shall act upon Q. A click O', provided with a spring which holds the
same in the position shown in the drawing, and which is affixed to the lever O, is
acted upon by the stud X when the extremity of O falls upon the snail T.
click engages in the teeth of S at a place which is determined, on the one hand, by
the position of S.(the latter being dependent on the position of U) and, on the other
hand, by the respective positions of W and K.

page_text: The piece R, having a spring r; works as a locking device for preventing the
striking of the repeating mechanism when not completely acted upon, until the above
mentioned lever 1 causes the unlocking of said mechanism.
When the arm bis acted upon for the purpose of effecting the striking, the
pieces Land O have a tendency to move in the opposite direction to the arrows
shewn in the drawing, but they are stopped by the teeth of the strikers P and Q,
these latter not being free to oscillate, the pins p and q bearing against the piece R
when the latter is placed as shewn in the drawings, that is to say, when the tooth R¹
bears upon the extremity I' of I. When the pin of the rack F strikes against I,
this latter is displaced so as to allow R¹ to escape from I¹. The piece R is then
easily repulsed by the pins and and then there is no obstacle, neither to the
falling of the pieces O and Supon the quarters and minutes snails T and U, nor to
the backward motion of the piece I which is determined by the hour-snail V. As
soon as the arm has been thrown upward and left to itself, all the pieces move in
the direction indicated by the arrows in the drawings until they reach the position
of rest shown in such drawing.
On the piece I, I affix an arm Z, against which hooks, when the mechanism is at
rest, the pin z of piece S: this latter cannot therefore fall npon its snail before the
unlocking has been effected, but, as soon as the pin pushes back the piece I then
the arm Z is displaced at the same time as the piece R, and the pins p, q, and z are
all released simultaneously.
Instead of the escapement commonly used in repeating mechanism, which produces
a disagreeable noise, I provide the axis K with a centrifugal regulator which I
place upon the watch movement, that is to say, at the back of the mechanism shown
in fig. 1.
This regulator, represented in figures 2 and 3, is acted upon by means of a click
fixed under the piece M (fig. 1.) and engages in the teeth of a click-wheel turning
freely about the axis K. Said click wheel carries a gear wheel which acts upon two
or more intermediate gear-wheels, driving the pinion a¹ of the regulator axis A¹.
This latter is pivotted in a small bridge fixed across a recess in the bridge B¹ in
which the regulator is placed. The latter consists of four arms D', D2, D3, D4, fixed
on the axis A¹.
The arms D¹ and D³ carry two levers E¹, with pivots et, and terminal weights E2.
The arms D2 and D* are shaped like two forks and serve as guides to the levers E¹
which traverse them.
Two springs f¹, fixed by one of their extremities to the arms D2 and D₁, bear by
their other extremity upon the levers E¹ so as to draw the weights E toward the axis A¹.
The heels of the levers E¹ are formed so as to freely rotate in the recess B' as long
as the levers E¹ remain in the position shown by full lines in the drawing. But
when the centrifugal force throws the levers outward, for instance into the position
shown by dotted lines in the drawing, the heels ell of the arms E¹ bear upon the inner face
of the recess B¹ so as to produce a friction which increases in proportion to the increasing
speed of the axis K. This friction produces a decrease in the velocity of the said
axis K, and when the speed of the latter is again a normal one, the springs f¹
through the levers E' again into their normal position; in which their heels e¹¹ do
not rub against the inner face of B¹.
The herein described regulator works without producing any noise whatever and
with great precision.
A

page_text: COMPLETE SPECIFICATION.
Improvements in Repeating Watches.
I, CHARLES BARBEZAT-BAILLOT, of Locle, in Switzerland, 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, reference
being had to the drawings and to the letters and figures marked thereon, that is
to say:
My invention relates to repeating watches and particularly to the following three
COMPLETE SPECIFICATION.
Improvements in Repeating Watches.
I, CHARLES BARBEZAT-BAILLOT, of Locle, in Switzerland, 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, reference
being had to the drawings and to the letters and figures marked thereon, that is
to say:
My invention relates to repeating watches and particularly to the following three
parts of the repeating mechanism :
1st. Arrangement of the motor mechanism of the repeating work, •
2nd. Unlocking devices,
3rd. Speed regulator of the repeating work.
In the drawings filed with my Provisional Specification, Fig. 1, is a plan, on an
exaggerated scale, of the repeating mechanism as it would appear when the dial is
removed; in this figure the mechanism is at rest.
Fig. 2, is a plan, and fig. 3, a cross section of the regulator, drawn twice the
scale of Fig. 1.
A, is the axis to which is affixed the main spring of the repeating work; said
spring is placed in a recess in the plate underneath the spring-barrel bridge.
The action of the main spring is transmitted to a toothed segment B, which rotates
about the axis A by means of a toothed wheel C, fixed to said axis A, and by
This click allows
means of a click D, which is affixed to the toothed segment B.
of the tension of the spring, when at rest, to be regulated at will. The segment B,
as to be acted upon by hand for
has an arm, b, projecting out of the watch so
causing the striking of the sounding mechanism. The said arm b, may be replaced
by a rack E, gearing into a toothed part of B, as shewn by dotted lines in fig. 1,
in order that it may be acted upon by means of a pusher.
The teeth of B engage with those of a rack F, which turns freely about an
axis G. This axis also carries another rack H, having a double-armed spring h,
and a piece I having a spring i. Said piece I is a part of the unlocking device, as
will be explained hereinafter. The spring connects the two racks H and F with
one another, but in such a manner as to allow the rack F to be free to continue to
advance under the action of B when the arm bis acted upon, and when the rack H,
is stopped, as hereinafter described. The result is that the pin f of the rack lever F
is able to act upon the unlocking lever I.
The rack H actuates a pinion J, fixed upon an axis K, which likewise carries a
piece L having twelve click teeth which act upon the hour striker N, and carry a
pin for acting upon the toothed segment M, which, in its turn, drives the lever
having a spring o. The lever O, pivotted at W, is provided with click-teeth m
acting upon the quarters strikers P and Q, and with click teeth n acting upon the
minutes striker Q.
Said
A click toothed-rack S, having its pivot at W, is intended to determine the number
of teeth n which shall act upon Q. A click O¹, provided with a spring which holds
the same in the position shewn in the drawing, and which is affixed to the lever O,
is acted npon by the stud X when the extremity of O falls upon the snail T.
click engages in the teeth of S at a place which is determined, on the one hand, by
the position of S (the latter being dependent on the position of U) and, on the other
hand, by the respective positions of W and K.
The piece R having a spring acts as a locking device for preventing the striking
of the repeating mechanism when not completely acted upon, until the above mentioned
lever I, causes the unlocking of said mechanism.
When the arm bis acted upon for the purpose of effecting the striking the pieces L
and have a tendency to move in the opposite direction to the arrows shewn in
the drawing, but they are stopped by the teeth of the strikers P and Q, these latter

page_text: "
!
L
not being free to oscillate, the pins p, and 7, bearing against the piece R when the
latter is placed as shewn in the drawings, that is to say when the tooth R' bears upon
the extremity, I¹ of I. When the pin f of the rack F strikes against I this latter is
displaced so as to allow R' to escape from I'. The piece R is then easily repulsed
by the pins p and q and then there is no obstacle, neither to the falling of the pieces O
and S upon the quarters and minutes, snails T and U, nor to the backward motion
of the piece L which is determined by the hour snail V. As soon as the arm b has
been thrown upward and left to itself, all the pieces move in the direction indicated
by the arrows in the drawings until they reach the position of rest, shewn in such
drawing.
On the piece I, I affix an arm Z against which bears the pin of the piece S,
when the mechanism is at rest; this piece cannot, therefore, fall upon its snail before
the unlocking has been effected, but, as soon as the pin pushes back the piece I,
the arm Z is displaced at the same time as the piece R, and the pins p, q, and 2, are
all released simultaneously.
Y is an arm, (having a spring y), the purpose of which is to project out of its
lower position the so called "surprise" u¹ of each arm of the minute-snail U, in view
of enlarging the fourteenth step of said arm so as to ensure the arm S striking the
15 minutes (or 0 minutes) when the pin f¹ has engaged with the corresponding
out-cut of Y so as to cause the latter to act upon u'.
The arm Y, and spring y, are not new, the same being used in all minute
repeating watches.
Instead of the escapement commonly used in repeating mechanism which produces
a disagreeable noise, I provide the axis K with a centrifugal regulator, which I
place upon the watch movement, that is to say, at the back of the mechanism shewn
in fig. 1.
This regulator, represented in Figs. 2 and 3 is acted upon by means of a click
fixed under the piece M (fig. 1) and engages in the teeth of a click wheel turning
freely about the axis K. Said click-wheel carries a gear wheel which acts upon
two or more intermediate gear wheels driving the pinion a¹ of the regulator axis A¹.
This latter is pivotted in a small bridge (fixed across a recess in the bridge B¹
in which the regulator is placed. The latter consists of four arms D¹, D², D³, D¹,
fixed on the axis A¹.
The arms D' and D³ carry two levers E¹ with pivots e¹ and terminal weights E².
The arms D2 and D are shaped like two forks and serve as guides to the levers E¹
which traverse them.
Two springs f, fixed by one of their extremities to the arms D2 and D* bear, by
their other extremity, upon the levers E¹, so as to draw the weights E² toward the
axis A. The heels of the levers E' are formed so as to freely rotate in the recess B¹
as long as the levers E¹ remain in the position shewn by full lines in the drawing.
But when the centrifugal force throws the levers outward, for instance into the
position shewn by dotted lines in the drawing, the heels ell of the arms E¹ bear upon
the inner face of the recess B¹ so as to produce a friction which increases in pro-
portion to the increasing speed of the axis K. This friction reduces the velocity of
the said axis K and when the speed of the latter is again a normal one the springs fl
throw the levers E¹ again into their normal position in which their heels e" do not
rub against the inner face of B¹.
The berein described regulator works without producing any noise whatever and
with great precision.
The forms of its different parts may be varied at will so as to produce decorative
⚫ effects.
Having now particularly described and ascertained the nature of my invention,
and in what manner the same is to be performed, 1 claim:
1. The combination of the rack B having either an arm
the one hand, with the click D), the wheel C, and the main
or a rack-lever E on
spring axis A, and, on

page_text: the other hand, with a rack F which transmits the motive power of the main spring
of the repeating mechanism to the other parts of the said mechanism, substantially as
shewn and described.
2. The unlocking device consisting of the rack F and H, with spring h and pin f,
and z,
of the lever I with spring i and arm Z, of the piece R, and of pins p, q,
substantially as shewn and described and for the purpose specified.
3. The combination of pinion J and of the pieces L, M, O, O¹, S, N, P, and Q,
substantially as shewn and described and for the purpose specified.
4. In repeating watches the combination of the repeating mechanism with a
centrifugal speed regulator.
5. A centrifugal speed regulator for repeating mechanism placed in a recess of a
bridge (B) and consisting essentially of an axis A¹ carrying four arms D¹, D³, D³,
and D, in combination with two levers E' having pivots el and weights E³, and with
springs f¹, substantially as shewn and described and for the purpose specified.
Dated this 26th day of November 1883.
NO
November 1009.
ERNEST DE PASS,
68, Fleet Street, London, Agent for the Applicant.