Year: 1895

page_text: Date of Application, 26th July, 1895
Complete Specification Left, 28th Feb., 1896-Accepted, 28th Mar., 1896
A communication from LOUIS BRANDT & FRERE, of Usines de la Gurzelen,
near Bienne, in the Republic of Switzerland, Manufacturers.
1 ALFRED JULIUS BOULT, of 323 High Holborn, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
The invention consists of improvements in the means whereby the stem of a
stem-winding watch is thrown into gear with either the winding-up or the hand-
setting-mechanism.
On the stem is disposed the winding-up-wheel which acts upon the usual gear-
wheels for causing the winding-up of the main-spring.
Mounted upon a square portion of the stem is the usual sliding pinion provided
with click-teeth intended to act corresponding click-teeth formed on the winding-up-
wheel which latter is free to rotate independently of the said stem. The sliding-
pinion is further provided with a teeth-range or crown wheel with which engages a
gear-wheel (herein termed the adjustable gear wheel) pivoted to one arm of a
rocking-lever as hereinafter described.
A spring tends to maintain the rocking-lever in the position it occupies when
adjusted for winding up the main spring.
Generally speaking the improvements consist of a rocking-lever pivoted to the
movement plate and guided by means of a screw passing through a slot in the lover.
One arm of said lever engages with a peripheral groove in the sliding-pinion and
upon another arm thereof is pivoted the before-mentioned gear-wheel, which acts
upon the usual handsetting-wheel. There is further provided a second rocking-lever
pivoted to the movement plate and one arm of which is provided with a suitable
projection engaging a peripheral groove in the stem. If the stem be moved in one
direction it causes the second rocking-lever to be moved into the position in which
its operative arm bears against the notched end of an arm of the first named rocking-
lever so as to throw the adjustable gear-wheel into gear with the minute-wheel and
releasing at same time the click-teeth of the sliding pinion from the click-teeth of
the winding-up-wheel.
In order to secure the second rocking-lever in either its inoperative or operative
position, there is provided a spring detent or brake fixed to the movement plate and
extending beneath the rocking-lever. The end of said detent is bent upward and
bears against one arm of the lever.
When the second rocking-lever is acted upon as above specified by moving the
stem for the purpose of setting the hands, the said lever is obliged to pass over a
projection on the spring detent depressing and compressing it at the same time. The
stroke of the second rocking-lever is limited by the arm of the first one and the spring
detent is then kept compressed, its bent or projecting end pressing against the under
side of the second rocking-lever and acting as a brake to prevent its too free
displacement.
Dated this 26th day of July 1895.
:
BOULT & WADE,
Agents for the Applicant.

page_text: A communication from LOUIS BRANDT & FRERE, of Usines de la Gurzelen,
near Bienne, in the Republic of Switzerland, Manufacturers.
1, ALFRED JULIUS BOULT, of 323 High Holborn, in the County of Middlesex,.
Chartered Patent Agent, 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 consists of improvements in the means whereby the stem of a
stem-winding watch is thrown into gear with either the winding-up or the hand-
setting-mechanism.
In the accompanying drawings the improved device is shown in two positions.
Fig. 1 shows the device in position for the winding-up, and
Fig. 2 shows it in position for the hand-setting.
On the stem G is disposed the winding-up-wheel c which acts upon the usual
gear-wheels (not shown) for causing the winding-up of the main-spring.
Mounted upon a square portion of the stem G is the usual sliding pinion C
provided with click-teeth e' intended to act upon corresponding click-teeth formed
on the winding-up-wheel c which latter is free to rotate independently of the said
stem G. The sliding-pinion c is further provided with a crown wheel with
which engages a gear-wheel d (herein termed the adjustable gear wheel) pivotted
to one arm of a rocking-lever B as hereinafter described.
A spring B' tends to maintain the rocking-lever B in the position shown in Fig. 1.
Generally speaking the improvements consist of a rocking-lever B pivotted at b
to the movement plate A and guided by means of a screw 6x passing through a
slot in the lever B and fixed to the plate A. One arm 3 of the lever B
engages with a circumferential groove c in the sliding-pinion C and upon the
arın 3 thereof is pivotted the before-mentioned gear-wheel d, which acts upon the
usual minute or handsetting-wheel D. There is further provided a second rocking-
lever E pivotted at e to the movement plate A and one arm e¹ of which is provided
with a suitable projection engaging a circumferential groove in the stem G. If the
stem G be moved in the direction indicated by the arrow in Fig. 1 it causes the
rocking-lever E to be moved into the position shown in Fig. 2 in which its
operative arme bears against the notched end of the arm 6 of the lever B (as
shown in Fig. 2) so as to throw the adjustable gear-wheel d into gear with the
minute-wheel D and at the same time release the click-teeth c¹ of the sliding pinion ()
from the click-teeth c³ of the winding-up-wheel c.
In order to secure the rocking-lever E in either its inoperative or operative
position, there is provided a spring de ent or brake F fixed to the movement
plate A and extending beneath the rocking-lever E. The end of the detent F is
bent upward to constitute a catch or projection which engages with the arms b
and of the levers B and E respectively when the said lever E is in the normal
position as shown in Fig. 1.
When the lever E is acted upon as above specified, by moving the stem G in
the direction indicated by the arrow in Fig. 1, for the purpose of setting the hands,
the said lever is obliged to pass over the catch or projection f and depress it
against the action of the spring F. The stroke of the lever E is limited by the
arm b' as shown in Fig. 2 and the spring detent F is then kept compressed, its
catch or projection f pressing against the underside of the arm of lever E and
acting as a brake to prevent its too free displacement.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondents, and in what manner the
same is to be performed, I declare that what I claim is ;-
1. In a stem winding watch the combination of a stem G a rocking-lever such as B
provided with two arms 6 6 and acting upon a sliding-pinion C and a rocking-lever
such as E having two arms e¹ e with a stop or brake-spring such as F so disposed
that a catch or projection thereof engages with the arms and when the
mechanism is in its normal or winding-up position and acts as a brake upon the
arm when the mechanism is moved into its hand-setting position and the arm
engages with the end of the arm b* substantially as described and illustrated in the
accompanying drawings.
2. The combination and arrangement of parts constituting the hand setting and
winding-up mechanism substantially as described and illustrated in the accompanying
drawings.
200
•
.
1000
BOULT & WADE,
Agents for the Applicant.