IMPROVEMENTS IN THE CONSTRUCTION OF KEYLESS WATCHES
Year: 1885

page_text: I ALEXANDER BROWNE of 9 and 10 Southampton Buildings in the County of
Middlesex Patent Agent do hereby declare the nature of my said Invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF KEYLESS WATCHES (being a communi-
cation from broad by the Society Industriel of Montier Grandval in Switzerland)
to be as follows:-
The object of this invention is to simplify the construction of keyless watches, to
lessen the cost of the same and to obtain greater and durability of the parts.
In the drawings figure 1. represents the mechanism beneath the dial of the watch.
Figure 2 shews the rocker. Figure 3. is a section of the rocker at the line X. Y.
Figures 4. 5 and 6 are detached illustrations of the rocker and toothed wheels in
their different positions. Figure 7 shows the plates and bridges of the watch
works. Figure 8. shows the quarter-plate without the stay-plate and Figure 9
represents the under-side of the stay-plate.
The stem winder A is of ordinary construction and passes into the watch but
instead of being provided with the usual ratchet wheels and toothed wheels or pinions
it is only provided with a toothed wheel B that gears into the teeth of the wheel C.
The rocker M is made with three arms and the spring Z. acts against one of these
arms. The rocker is pivotted on a stud p figure 3. projecting from the pillar-plate.
of the watch, and the screws passing into such stud p. retains the rocker in position
but allows it to be vibrated.
The wheel C is between the pillar-plate and the rocker M and the said rocker is
recessed for its reception and there is a tubular hub o. upon the rocker-plate, that
forms the arbor around which the wheel C is rotated by means of the toothed
wheel B.
The pinion D is pivotted at y upon one arm of the rocker M and its teeth are
always in gear with the wheel Č.
The arbor F of the spring barrel has at one end a ratchet wheel H between the
quarter plate F and the stay plate N. The pawl n and spring m are recessed in
the plate P and retained in place by the plate N. The other end of the arbor F. is
provided with the toothed wheel E with which the pinion D remains in gear except
D. 077

page_text: when the hands are being set: hence the crown A of the stem can be turned as
indicated by the arrow, figure 1. to wind up the watch whenever necessary; but
should the crown be turned the wrong way, as indicated by the arrows Figs. 4
and 5 the parts will not be injured because the arbor F and wheel E will be held
firmly by the pawl or click n and the rocker M will swing and the teeth in
wheel D will disengage from the teeth of E as indicated in figure 5 in consequence
of the inclined form of the sides of the teeth and the tendency of the wheel C to
swing the rocker M when turned in the direction indicated.
For setting the watch I make use of a pusher acting against the stud upon the
rocker M to move such rocker M and wheel D into the position shewn in figure 6
and disengage the wheel D from the wheel E and engage it with the wheel G that
is part of the gearing of the hands. Whilst the parts are held in this position by
the pusher the crown of the stem-winder and the gearing can be turned either way
to set the hands forward or backward.

page_text: I ALEXANDER BROWNE of 9 and 10 Southampton Buildings in the County of
Middlesex Patent Agent, do hereby declare this said invention (being a communi-
cation by the Society Industriel Montier Granval in Switzerland) to be as
follows:-
The object of this invention is to simplify the construction of keyless watches to
lessen the cost of the same and to obtain greater strength and durability of the
parts.
In order to explain my said invention more fully I will now proceed to describe
the same with reference to the accompanying sheet of drawing. In all the figures
the same letters denote the same parts.
Figures 1 and 2 show two different positions of the said mechanism. In the
arrangement shewn in figure 1 the wheels are in position for winding the watch.
Figure 2 shews the wheels in position for setting off the hands.
Figure 3 is a section of the rocker A and of the wheels D and E shewing the
manner in which the rocker is fixed on the plate L.
The rocker A is provided with an arm or projection g on which the end of the
spring B leans also an arm c which is acted upon by the lever C and with two
projections a and b which lean successively against the inner edge of a circular
recess in the plate L thus limiting the oscillating movement of the rocker A. The
wheel D acted upon by the stem-wheel M turns round a core f on the plate L.
In order to prevent the rapid wear of this core it is surrounded by a steel ring e
fixed on the plate L by a piu h shewn in figure 3.
The rocker A is maintained on the core f by a screw d acting as a pivot.
Another screw i is fixed of the lower end of the rocker in order to act as a pivot of
the wheel E.
The spring B causes the rocker A to remain in this position shewn by figure 1
in which the watch is wound up when the stem wheel M is turned.
The lever C specially arranged for hunting watches can be operated with the
fingers into the position shewn at fig. 2. In taking this position, the lever C causes
the rocker A to oscillate from right to left and to bring the wheel E in gear with
the minute wheel G. The latter and the pinion H engage with the wheels carrying
the hour and minute-hands.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed I declare that what
I claim is
Firstly. In stem winding watches the arrangement of a rocker A provided with
two projections a and b substantially as shewn and described and for the purpose
specified.

page_text: Secondly. In stem winding watches the arrangement of the core f provided with
a steel-ring e substantially as shewn and described and for the purpose specified.
Thirdly. In stem winding watches the arrangement of a setting mechanism
composed of a rocker A with wheels D and E of a core f, with steel ring e and pin h,
of a lever C, and of a spring B, the whole substantially as shewn and described.
1000