An Improved Safety Attachment for Watches.
Year: 1887

page_text: Date of Application, 17th Feb., 1887
Complete Left, 16th Nov., 1887
Complete Accepted, 16th Dec., 1887
F
An Improved Safety Attachment for Watches.
1, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this Invention a communication to me from
abroad by Henry Désiré Martin-Pouget of 97 Boulevard Montparnasse, Paris, France,
Jeweller, to be as follows :-
This Invention relates to a safety attachment more especially intended to be applied
to a watch chain for preventing the watch from being stolen. This safety attachment
is at once simple and certain in its action and can be made more or less ornamental
in appearance.
The attachment is represented on an enlarged scale in the accompanying drawing,
in which Figure 1 shows the attachment in section, the claws being in their normal
position, and Figure 2 shows a similar view with the claws expanded, while figure 3
shows an external view of the attachment.
The same letters of reference represent the same parts in the three figures.
The safety attachment is contained in a hollow casing of cylindrical, spherical
or other form, provided with a ring a at one end for attachment to the bow of the
watch.
at
The safety attachment consists of claws working through longitudinal slots
opposite sides of the casing and pivoted to a head e at the inner end of a rod d sliding
through the opposite end of the casing and terminating in a swivel b for attachment
to the watch chain..
The claws are retracted as shown in figures 1 and 3 by a spiral spring hon stem d
confined between the head e and the end of the casing. Immediately however that
the chain is pulled, the sliding stem d will be drawn outwards and claws f bearing
against the upper ends of the slots 9 as a fulcrum will be caused to project from the

page_text: casing, as shown in figure 2, and catch in the pocket. On the chain being relieved
of the pull, the claws will be retracted within the casing by the spring pressing them
against the lower ends of the slots as a fulcrum.
When the claws are in the retracted position the watch can be readily lifted out of
the pocket by taking hold of the casing a so that the claws are not operated.
By making the casing spherical four claws may be used.
A. MELVILLE CLARK.
By A. M. & Wm. Clark,
53, Chancery Lane, London.
COMPLETE SPECIFICATION.
An Improved Safety Attachment for Watches.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this Invention a communication to me
from abroad by Henry Désiré Martin-Pouget of 97 Boulevard Montparnasse, Paris,
France, Jeweller, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This Invention relates to a safety attachment intended to be applied to a watch
chain for preventing theft of the watch. It is at once simple and certain in its
action and can be made more or less ornamental in appearance.
Reference is to be had to the drawing accompanying my provisional specification,
which represents the safety attachment drawn to an enlarged scale. Figures 1 and 3
shew the attachment in longitudinal section and in external elevation respectively, the
claws being in their normal or retracted position; and figure 2 is a similar section ;
the claws being expanded or projected from the case. The same letters of reference
represent the same parts in the three figures.
The safety attachment is contained in a hollow case of cylindrical, spherical, or
other form, provided with a ring a at the lower end for attachment to the bow of the
watch. The safety attachment consists of one or more pairs of claws pivoted to a
head e at the inner end of a longitudinal rod d sliding through the upper end of
the casing and terminating in a swivel b for attachment to the watch chain, the points
of the claws passing through longitudinal slots g at opposite sides of the case. The
claws are normally held retracted as shewn in figures 1 and 3 by a spiral spring ½ on
the rod d confined between the head e and the upper end of the case.

page_text: If the sliding stem d be drawn outwards, the claws f bearing against the upper
ends of the slots g as a fulcrum, will be caused to project from the case as shewn in
figure 2, and when the stem d is released, the claws will be retracted within the case
by the spring pressing them against the lower ends of the slots as a fulcrum.
If, therefore, the watch chain be pulled for the purpose of abstracting the watch, the
claws will be projected outwards and catch in the pocket lining, but the watch can be
readily withdrawn from the pocket by the wearer, by taking hold of the case a, the
claws then remaining in their retracted position.
When the safety attachment is made of spherical form, two pairs of claws would
be used.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is ;-
A safety attachment for watches, consisting of claws of pivoted at m to a head e at
the inner end of a sliding rod d having a spiral spring hand contained in a casing c
provided with slots through which the claws work, and with a ring a for attachment
to the watch bow, and with a swivel b attached to the rod d for attachment to the
watch chain, as herein before described and represented in the drawing.
Dated this 16th day of November 1887.
A. MELVILLE CLARK.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.