Improvements in Watches.
Year: 1892

page_text: Date of Application, 8th Dec., 1892-Accepted, 14th Jan., 1893
COMPLETE SPECIFICATION.
Improvements in Watches.
I, LUCIEN AUGUSTE MONNIER, Manufacturer, of Rosières, Canton de Soleure,
in the Republic of 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:-
This invention for improvements in watches has for its object to provide a key
fixed inside the case of a watch in such manner that it can be applied either to
winding the watch or to setting the fingers to the correct time, thus obtaining all
the advantages of keyless watches without the disadvantages.
In the accompanying sheet of illustrative drawings:
:-
Figure 1 is an elevation of a watch case with the attached key, the back being
shown open, constructed according to this invention and
Figure 2 is a section of the same on the line x-x Figure 1.
The key of the watch is made in two parts, namely the square socket a adapted.
to fit the squared ends of the winding arbor d and of the finger setting arbor e, and
the handle jointed by means of the pin o to the socket a so that it can be folded
down flat on the case when the socket is on either of the arbors de. The socket is
made as short as possible projecting very slightly from the inner case of the watch.
The socket a is mounted in one end of a spring e so that it can be rotated in the
said end and the other end of the spring is pivotted to the inner case of the watch
by a small screw which is equally distant from the two arbors de; the socket being
mounted on the spring at a distance from the screw so that it can be brought over
either arbor..
Normally the socket a is fixed on one of the arbors, say the winding arbor d, and
the handle is folded flat on to the inner case of the watch, when the back can be
closed. When desired to wind the watch, the back is opened, the handle braised,
and the watch wound in the ordinary manner. When desired to set the watch, the
handle and socket a are slightly raised so as to disengage the socket a from the
arbor d, the elasticity of the spring c allowing of this movement, and the whole is
revolved round the small pivot screw until the socket a comes over the finger
setting arbor e; the socket is then forced on to the square end of the arbor e and
the hands set to the desired time when it can be replaced on the arbor d. The
handle is made in any desired form, and the socket a can be mounted in a carriage
adapted to slide between the two arbors instead of on the spring c or in other
convenient manner so that it can readily be transferred from one arbor to the other
at pleasure, but cannot be removed from the case.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Mounting the key of a watch within the case in such manner that it can
readily be engaged with either the winding arbor or the hand setting arbor and
then operated to wind or set the watch and in constructing the key of two parts
hinged together so that when the one part is engaged with either arbor the other
part can be folded flat and the back closed, or be raised up to wind or set the
watch, the whole substantially as described.
Dated this 8th day of December 1892.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.