Improvements in the Fittings of Double Windows or Casements.
Year: 1890

page_text: Date of Application, 4th Feb., 1890-Accepted, 15th Mar., 1890
COMPLETE SPECIFICATION.
Improvements in the Fittings of Double Windows or Casements.
I FRANZ SCHMIDT of Rathhausplatz Zittau in the Kingdom of Saxony, Empire of
Germany, 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 and accompanying drawings :---
My said Invention relates to window casements which are made double that is to
say with separate inner and outer casements, hinged to the frame so as to open and
shut like doors as in the ordinary type of French windows. The invention refers to
means for preventing the said inner and outer casements from clashing together or
from being violently thrown apart by influences such as the weather or the sudden
opening or closing of doors in the apartment. To guard against such accidents I
provide means for securing the casements together, so that they will not only be
prevented from closing but will be maintained in any position to which they may
be set.
The annexed drawing clearly illustrates my invention.
Fig. 1 illustrates one half of the holding means which I secure to one of the
casements.
Fig. 2 is the other half which I secure to the other casement.
Fig. 3 is an edge view of Fig. 2.
Fig. 4 is a plan view of Fig. 1 and Fig. 2 in combination.
Fig. 5 is a general view to a reduced scale of the fitting applied to a hinged double
window casement the part shown in Fig. 1 being fixed to the casement marked
(which might be the inner window), and the part shown in Fig. 2 being secured to
the casement marked P (which might be the outer window).
Referring to Fig. 1 the part therein represented consists of a plate B which is secured
by screw nails to the foot of the casement O. A sleeve C is cast or formed in one
with the plate B and a slot D is cut in the sleeve C. A bolt G occupies the
sleeve and moves freely therein. A stud F projecting from the top of the bolt G
fits the slot D. The foot of the bolt G carries an arm J which has a hook H at its
free end. If the bolt G is turned in the sleeve C till the stud F enters the slot 1) the
bolt G and arm J will drop. Referring now to Fig. 2 the fitting shown therein
consists of a plate A having bent ledges K which serve as guides to receive a slide M
with an eye L projecting from the slide. The slide M is confined by the ledges K
and can be moved freely to and fro along the plate A. The plate A is fastened by screw
nails to the foot of the casement P and about opposite to the sleeve C already referred
to, this relative position being shown in Fig. 4. When it is desired to secure the
casements together for example in a partially opened condition as in Fig. 5, the bolt G
is turned till the stud F enters the slot and the bolt drops. The slide M has been
meanwhile moved opposite to the hook H so that when the bolt drops the hook H
enters the eye L on the slide and the two casements are thus connected and held apart
and in the adjusted position so that no accidental clashing or violent movements of
the casement is possible. To disengage the casements it is only necessary to lift the
bolt G, and so remove the hook H from the eye L leaving the casements free to be
closed or adjusted in another position.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what I
claim is.
The improved fittings for double windows or casements consisting of a pivotted
arm J turning in a slotted sleeve C which is secured to one of the casements, in com-
hination with a sliding nart M carried in a onide plate A which is fixed to the other

page_text: casement, the said part. M being capable of movement so as to engage with a hook H
or other suitable part on the arm J'and thus connect the casements when [desired with
the objects and substantially as described and shown.
Dated this 3rd day of February 1890
DUTTON & FULTON,
1, St. James Square, Manchester, Agents.