Improvements in Watch Cases.
Year: 1895

page_text: Complete Specification Left, 6th June, 1896-Accepted, 18th July, 1896
Improvements in Watch Cases.
I, LOUISE ANNA MACQUAT, of 51 Faubourg du Lac, Bienne, in the Republic
of Switzerland, Watch-case Manufacturer, do hereby declare the nature of this
invention to be as follows :-
My invention relates to watch-cases.
The watch-case proper, is formed of a bottom and a ring formed of metal in one
piece.
A rim is connected by means of a hinge to the inner edge of the ring and is
provided on its circumference with a rounded border adapted to be forced into the
opening of the casing.
The rim has a circular shoulder adapted to bear upon the edge of the plate of
the work the winding-up-stem projects over the circumference of the work but not
over the border.
To the work plate there is provided a dust-proof-ring to which is fixed by means
of a circular recess an inner bottom of metal or of glass.
The stem is adapted to engage the square end of the winding-up-stem and is
provided with a circular groove in which may be engaged the edges of an outcut
formed like a loop-hole provided in a spring.
The broad part of the outcut is large enough as to allow the stem to pass
through it. The spring is moreover provided with a hole intended to engage the
inner end of the usual push-piece. The so formed spring has for its object both to
press the stem toward the inner part of the watch and to press the push-piece
toward the exterior of the same; by means of its being engaged over the inner
end of said push-piece and of its having the stem engaged in the smaller portion
of the loop-hole, the spring is thus firmly fixed in the case without the help of
any screw whatever.
For removing the said spring its right end must first be pressed inward by means
of any tool whatever until it is disengaged from the pin; then it is slit longitudinally
until the edges of the opening are disengaged from the groove.
When the spring is in its place the crown must be thrown externally to allow
the work to be engaged into the ring of the casing; when the rim is pressed to
into the said ring and the stem released the spring causes the latter to engage
the winding-up-stem.
Dated this 6th day of Santamber 1805

page_text: Improvements in watch cases.
I, LOUISE ANNa MacQUAT, of 51 Faubourg du Lac, Bienne, in the Republic
of Switzerland, Watch-case Manufacturer, 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:-
My invention relates to watch-cases and is illustrated in the accompanying
drawing in which
Figure 1 shows, as an example, one form of execution of my improved watch-
cases and
Figure 2 is a plan view of the spring shown separately.
The watch-case proper, is formed of a bottom A and a ring A' formed of metal
in one piece.
A rin B is connected by means of a hinge a to the inner edge of the ring A
and is provided on its circumference with a rounded border adapted to be forced
into the opening of the casing A A¹.
The rim B has a circular shoulder adapted to bear upon the edge of the
plate C of the work. D shows the height of the bridges and E is the winding-
up-stem which projects over the circumference of the work but not over the
border b.
To the work plate C there is provided a dust-proof-ring F to which is fixed by
means of a circular recess an inner bottom G of metal or of glass.
The stem H is adapted to engage the square end of the winding-up stem E and
is provided with a circular groove in which may be engaged the edges of an
outcut 11 formed like a loop-hole provided in a spring I.
The broad part of the outcut 1 is large enough as to allow the stem H to pass
through it. The spring I is moreover provided with a hole i intended to engage
the inner end k of the usual push-piece K. The so formed spring I has for its
object both to press the stem H toward the inner part of the watch and to press
the push-piece K toward the exterior of the same; by means of its being engaged
over the inner end of said push-piece K and of its having the stem H engaged in
the smaller portion of the foop-hole 1' the spring I is thus firmly fixed in the case
without the help of any screw whatever. For removing the said spring its right
end must first be pressed inward in the direction of the arrow 1 by means of any
suitable tool until it is disengaged from the pin ; then it is slid longitudinally in
the direction of the arrow 2 until the edges of the opening 11 are disengaged
from the groove h.
When the spring I is in its place as shown in Figure 1 the crown must be thrown
externally to allow the work to be engaged into the ring A of the casing; the
spring then assumes the form shown in dotted lines and, when the rim B is
pressed into the said ring and the stem H released the spring I causes the latter
to engage the winding-up stem E.
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 :-
--
An improved watch-case characterized by the shoulder b' of the rim B and the
spring I substantially as and for the purpose specified.
Dated him
£ 1000
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.