An Improved Safety Brooch Catch.
Year: 1890

page_text: Date of Application, 3rd Nov., 1890
Complete Specification Left, 7th May, 1891-Accepted, 3rd Nov., 1891
PROVISIONAL SPECIFICATION.
An Improved Safety Brooch Catch.
We ALFRED ERNEST JOSEPH BALL of 4 Higher Hooc, near Plymouth,
Watch and Clock Maker and EMANUEL HENRY LEVI 38 Jewin Street London,
Wholesale Jeweller, do hereby declare the nature of this invention to be as
follows:-
The object of our invention is to produce a brooch catch by means of which the
pin or tongue of a brooch shall be secured in such a manner as to render its
slipping out or becoming unhooked-as often occurs with the ordinary hook shaped
catches hitherto employed-practically impossible. We effect this much to be
desired object by means of what we may designate a push piece" disposed in a
small receptacle shell or casing, in combination with a suitable spring or springs or
equivalents: the whole so arranged as to allow of our producing a brooch catch
which securely bolts the pin of a brooch in such a manner as to ensure that it can
only become released upon pressing a "push piece" such as above referred to.
Dated this 1st day of November 1890.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicants.
COMPLETE SPECIFICATION.
An Improved Safety Brooch Catch.
We, ALFRED ERNEST JOSEPH BALL 4 Higher Hooc Clock Maker near
Plymouth and EMANUEL HENRY LEVI 38 Jewin Street London Wholesale
Jeweller, 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 object of our invention is to produce a brooch catch by means of which the
pin or tongue of a brooch shall be secured in such a manner as to render its
slipping out or becoming unhooked-as often occurs with the ordinary hook shaped
catches hitherto employed practically impossible. I effect this much to be
desired object by means of what I may designate a "push piece" disposed in a
small receptacle, shell or casing, in combination with a suitable spring or springs
or equivalents: the whole so arranged as to allow of my producing a brooch catch
which securely bolts the pin of a brooch or the like in such a manner as to ensure
that it can only become released upon pressing a "push piece" such as above
referred to.
In the annexed drawing illustrative of my said invention, Figures 1 & 2 are
elevations of a brooch according to my invention. Figure 3 is a vertical section,
Fig. 4 a side and Figure an end elevation of my improved brooch pin catch
shown to enlarged scale. Figure 6 is a vertical section and Figure 7 a side
elevation of a modification of said catch, a further modification being shown in
vertical section at Figure 8.
Referring to Figures.1 to 5 inclusive A is a casing or guide standing out perpen-
dicularly from the back face of the brooch and formed in combination with or
attached separately to the back plate. B is the push piece pivoted at c to the
sides of the casing or guide A and formed with a right angled nose or catch piece b
against the inner side of which bears the spring C. The pin P, which, when in the
closed position as shown, is held in place by the hooked end a of the casing or

page_text: guide A; the catch of the pivoted push piece preventing said pin from being
accidentally shaken or forced out of position.
In Figures 6 & 7 the hooked end on the casing is dispensed with, the catch or
nose piece of the pivoted push piece B serving to retain the pin P, in the closed
position.
In the modification shown at Figure 8, the device comprises a sliding push
piece B¹ instead of a pivoted push piece B, and a spiral spring d, instead of a flat
spring C. The pin P is held in place by the hooked end a of the casing or
guide A, the unplacement of the pin P being prevented when the projection or
catch, of the push piece 13' returns to its normal position. We do not confine
ourselves to any particular form or arrangement of spring and sliding push piece.
The action of the catch is as follows: When the pin P is forced down upon the
inclined surface a of the casing A it depresses the catch piece Figures 1 to 5,
and the catch piece, Figures 6 and 7 against the pressure of the spring C, and
in Figure 8, the pin P slides down the inclined surface a' of the push piece B¹ and
forces the latter back against the pressure of the spring d. The pin P after
passing the catch Figures 1 to 5 or catch 2 Figure 8 then rises and is held by
the hooked end a of the casing or guide A, the return of the pin P being prevented
when the push pieces B, B', are returned into their normal positions by the
springs C, d. In Figures 6 & 7 the pin P after depressing the catch picce
held by means of the hooked end of said catch piece b' when the latter returns to
its normal position by means of the spring C. Upon unfastening or removing the
pin P from the hooked portion a or catch piece 6' the push piece B or B' is first
forced back as shown in dotted lines Figure 3, by the thumb of the person using
the brooch until the catch piece b, or permits of the pin P being withdrawn,
whereupon the catch and push piece returns to its normal position.
is
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:-
1. The improvements in safety brooch catches substantially as herein set forth
and shown.
2. In catches for brooches & the like the use of a push piece provided with a
projecting nose or catch piece and pivoted in a casing or between guides, the said
push piece and catch being forced into the closed position by means of a suitable
spring substantially as and for the purposes specified.
Dated this 7th day of May 1891.
E. EATON,
Agent for Applicants.