Improvements in Safety Locks or Fastenings for Bracelets and the like.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Safety Locks or Fastenings for Bracelets and
the like.
A communication from ADOLF PEGAU, of Pforzheim, Baden, in the Empire of
Germany, Jeweller.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.,
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 subject of this invention is an improved locking or fastening device for
bracelets and the like capable of being readily opened when it is desired to take off
or put on the bracelet, while at the same time it is adapted effectively to prevent
the loss of the article without necessitating the employinent of the usual safety
chain.
Most of the bracelet locks hitherto used consist of a spring-controlled tongue
adapted to catch or engage in a projecting portion of the trinket, and which is
released from such engagement by pressure upon a head or button and thereby
enabled to be withdrawn from the hollow space provided for its reception, which
when accomplished results in the opening of the bracelet.
In addition to this fastening device both parts or shanks of such bracelets are
generally provided with a small chain intended to prevent the bracelet from slipping
over the hand, should it accidentally open.
Another method of fastening bracelets devised with a view of preventing the
loss thereof consists in inserting a steel spring into the body of the bracelet which
spring has a tendency to draw both parts of the bracelet together and thus to secure
then on the arm. The inconvenience attending this system is that the springs are
liable to rust through dampness perspiration etc. and to consequent breakage
necessitating frequent repairs.
The bracelet lock constructed according to this invention and exemplified in the
accompanying drawing will effectively secure in place bracelets and the like and
prevent their loss without the use of either spring or a chain.
In the accompanying drawings ;-
Fig. 1 represents the bracelet open.
Fig. 2 is a plan of the same also open, and
Fig. 3 is a sectional elevation of a bracelet when closed.
The bracelet consists of a ring preferably formed of two portions A and B hinged
together at S. The fastening or locking device is mainly formed of a piece or
nasp
D which may represent a buckle or the like and of a tongue C pivoted to the
said piece D at c. The piece D is attached to the free end of the part A, while the
tongue C is pivoted to the free end of the part B by any suitable means such as
the hinge-pin b. When it is desired to close the bracelet either part A and B is
moved respectively in the direction of the arrows Fig. 1. This also brings the two
pins or pivots d and b close together and the tongue takes up its position underneath
the piece D and upwardly bears against it. To effect the fastening it is then sufficient
to press down the piece D when a stud K projecting therefrom will enter an opening e
provided for its reception in the part B of the bracelet thus completing the fastening;
as when the parts are in this position it will be seen that the tongue C is held
between the ring or body of the bracelet itself and the overlapping piece D.
When it is desired to open the bracelet the piece D is raised with a finger and
the two halves of the trinket can at once he moved apart sufficiently to enable the
same to be readily slipped off (Fig. 1).

page_text: It will be understood from the foregoing description that no safety.chain is required
in connection with a bracelet fitted with this lock the latter being amply sufficient to
avoid loss.
Having now particularly described and ascertained the nature of the said invention
as communicated to me by my foreign correspondent and in what manner the same
is to be performed, I declare that what I claim is ;-
A bracelet fastening or locking device consisting of a piece hasp or cover such
as D hinged or pivoted to one end of the bracelet and of a tongue such as C
similarly hinged to the other end of the bracelet by both of which pieces the two
parts A and B are connected in such a manner that when it is desired to open and
take off the trinket they may be readily drawn asunder while so long as the same is
required to remain on the arm it is efficiently locked and secured against accidentally
opening or slipping over the hand the whole substantially as described and illustrated
in the accompanying drawings.
Dated this 24th day of Inly 1890
W. P. THOMPSON & BOULT.
Agents for the Applicant.