Improvements in Watch-keys, and in the Winding Stems of Keyless Watches.
Year: 1896

page_text: Date of Application, 18th Apr., 1896
Complete Specification Left. 14th Jan., 1897-Accepted, 27th Feb., 1897
Complete Specification Left. 14th Jan., 1897-Accepted, 27th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in Watch-keys, and in the Winding Stems of Keyless
Watches.
I FREDERICK CHARLES WILKINS of York House, Malvern, in the County of
Worcester, Watch and Clock Maker do hereby declare the nature of this invention to
be as follows:-
The object of my invention is to prevent the possibility of any watch, keyless or
otherwise, being overwound, and the main spring broken.
The key can be made of brass, steel, or white metal, in the following manner.
By fitting the rod or stem of the key fairly tight, into a piece of tube or cylinder,
& then fixing an adjusting screw through the cylinder according to the strength of
a main-spring in a watch. The key made as above will act that when a watch is
wound up full, the top of the key will move and the stem or rod stand still, so that
it will not break the stop-work in a watch, or break or strain the keyless work in a
keyless watch.
With regard to applying my invention to a keyless watch (the winding stem of
which is at present all in one piece) my key, for the purpose of a keyless watch, is
made in two parts, the one being the rod or stem, with adjusting screw affixed, and
the other being the knob.
Dated this 15th day of April 1896.
FREDERICK CHARLES WILKINS.
COMPLETE SPECIFICATION.
Improvements in Watch-keys, and in the Winding Stems of Keyless
Watches.
I FREDERICK CHARLES WILKINS of "York House," Malvern in the County of
Worcester Watch and Clock Maker 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 and the accompanying drawings:-
The object of my invention is to prevent the possibility of any watch keyless or
otherwise being overwound and the main spring broken.
The key can be made of brass, steel or white metal in the following manner,-
By fitting a round rod or winding stem fairly tight into a piece of tube or cylinder
and then fixing an adjusting screw through the cylinder to fit in a groove in the rod
or winding stem according to the strength of a main spring of a watch-the key
made as above will act that when a watch is fully wound up the cylinder and top of
the key will move or turn round and the rod or stem remain stationary so that it will
not break the stop work in a watch or break or strain the keyless work in a keyless
watch.

page_text: In order to apply my invention to a keyless watch (the winding stem of which is
at present made in one piece) it has to be made in two parts the one being the knob
and cylinder with the adjusting screw inserted and the other being the rod or winding
stem with the groove mentioned above.
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
1. The novelty or invention comprising the cylinder or tube the round rod or
winding stem (with the groove) fitting into such cylinder or tube together with the
adjusting screw, all of which are above described.
Dated this 13th day of January 1897
FREDERICK CHARLES WILKINS.