Improvements in Watches.
Year: 1892

page_text: PROVISIONAL SPECIFICATION.
Improvements in Watches.
We, JAPY FRERES & Co., Manufacturers, of Beaucourt (Ht. Rhin Francais),
do hereby declare the nature of this invention to be as follows:-
The invention relates to an improved construction of the motor of watches, that
is to say of the mainspring-barrel of watches; its main object being to have the
mainspring wound up without any irregular action or suspension of action upon the
watch-movement, and to cheapen the construction of the watch without diminishing
its good working.
To a central arbor there is fixed a toothed wheel to the boss of which is fixed
the inner end of the mainspring the wheel operating like the usual mainspring
barrel and acting upon the usual gearings of the watch.
The outer end of the mainspring is fixed to a barrel drum or disc to which is
firmly connected a click wheel. Between the barrel and click wheel there is
formed a suitable collar intended to act like a pivot or axis in a suitable hole of the
plate. The arbor is free to turn in the barrel, the latter being usually prevented
from being revolved by means of a suitable click-spring fixed on the plate and
engaging the teeth of the click-wheel.
To the arbor there is firmly fixed a muffle or double collar provided with a
circular groove into which is inserted a wheel which is intended to act upon the
central pinion the tubular arbor of which bears the minute-hand; this gears with
a wheel the pinion of which gears with the hour-wheel which bears the hour-
hand.
The wheel is inserted in the muffle with smooth friction so as to generally be
revolved with the arbor so as to impart the rotation of the latter directly to the
hands, and to nevertheless be capable of being rotated independently of arbor
when the hands are to be set by means of a suitable handsetting mechanism.
This mechanism may be composed of a wheel which is pivoted to a rocking-
bridge or cock and acted upon by the stem-wheel through an intermediate wheel.
The latter gears also with a wheel also pivoted to the rocking-bridge and gearing
generally with the click wheel under the action of a spring for the purpose of
winding up the mainspring.
A push-piece is provided for setting the intermediate winding wheel into gear
with the friction wheel by rocking the bridge whereby the first wheel is thrown out
gear with click wheel.
of
Dated the 21st of January 1891.
W. P. THOMPSON & BUULI,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Watches.
We, JAPY FRERES & Co., Manufacturers of Beaucourt (Ht. Rhin Francais),
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:-
The invention relates to an improved construction of the motor of watches, that
is to say of the mainspring-barrel of watches; its main object being to have the
mainspring wound up without any irregular action or suspension of action upon the
watch-movement, and to cheapen the construction of the watch without diminishing
its good working.
The said improvement is represented on an enlarged scale in the accompanying
drawings in which
Figure 1 is a plan of the watch those parts of the mechanism which do not
belong to the invention being only partially shown.
Figure 2 is a cross section and
Figure 3 is a plan of the same from beneath with the wheel B removed.
In all three figures the same letters refer to the same parts.
To a central arbor A there is fixed a toothed wheel B to the boss of which is
fixed the inner end of the mainspring C as shown in Figure 3, the wheel B
operating like the usual mainspring-barrel and acting upon the usual wheels of the
watch, not shown in the drawings.
The outer end of the main-spring C is fixed to a barrel or drum to which is
firmly connected a click wheel E. Between the barrel D and click wheel E there
is formed a suitable collar intended to act like a pivot or axis in a suitable hole in
the plate P. The arbor A is free to turn in the barrel D the latter being usually
prevented from turning by a suitable click spring S fixed on the plate R and
engaging the teeth of the click-wheel E.
To the arbor A there is firmly fixed a muffle or double collar H provided with a
circular groove into which is inserted a wheel I which is intended to act upon the
central pinion K the tubular arbor of which bears the minute-hand; this pinion K
gears with a wheel L the pinion of which gears with the hour-wheel M which
bears the hour-hand.
The wheel I is inserted in the muffle H with smooth friction, so as to generally
be revolved with the arbor A. so as to impart the rotation of the latter directly to
the hands, and to nevertheless be capable of being rotated independently of arbor A
when the hands are to be set by means of a suitable hand setting-mechanism.
This mechanism may be composed of a wheel N which is pivotted to a rocking-
bridge or cock O and acted upon by the stem-wheel Q through an intermediate
wheel R. The latter gears also with a wheel V also pivotted to the rocking-
bridge and gearing generally with the click-wheel E, under the action of a
springs for the purpose of winding-up the mainspring, by the stem-wheel Q
imparting its rotation to the wheels R, V and E and hence to the barrel D.
A push-piece T is provided for putting the intermediate winding wheel N into
gear with the friction wheel I by rocking the bridge O whereby the first wheel V
is thrown out of gear with the click wheel E.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same. is to be performed we declare that what we
claim is :-
In watches the combination of the main spring C on the one hand with a gear
wheel B to which is attached its inner end and which is intended to act upon the
train of wheels acting upon the escapement and on the other hand with a barrel
diso or drum D to which is attached the outer end of said mainspring and which

page_text: bears a wheel E acted upon by a click spring S and by any suitable winding-up-
mechanism the axis A. of the wheel B bearing a wheel I fixed with smooth friction
upon it and intended to act upon the wheels bearing the hour-and-minute-hands
substantially as and for the purpose described and illustrated in the accompanying
drawings.
1000