Improved Appliance for Holding Doors or Window Sashes in a More or Less Open Position.
Year: 1890

page_text: Date of Application, 10th Apr., 1890- Accepted, 31st May, 1890
COMPLETE SPECIFICATION.
Improved Appliance for Holding Doors or Window Sashes in a
More or Less Open Position.
A communication from abroad by JOHANN RIBBACH and WILHELM MEISSNER, of
29, Prinzessinnenstrasse, Berlin S., in the Empire of Germany, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool and 6 Bank Street, Manchester, both in
the County of Lancaster and 23 High Holborn in the County of Middlesex, Civil
Engineer, 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 this invention is an arrangement for fixing open doors or door and
window sashes, and its special characteristic is the arrangement of a rod movably
attached to the window sill with one end bent angularly downwards or straight,
which rod is fastened by means of a clamp attached directly or indirectly to the window
sash or door.
In practice this clamp can be arranged on the window sash or the like vertically as
represented in Figures 1 to 8 or horizontally as shown in Figures 9 to 12.
On the annexed drawings there is shown in Figures 1, 2 and 3 the new fixing
arrangement with the catch standing vertically to the window sash.
Figure 1 is a front elevation, and Figures 2 and 3 are sectional plans, the window
being shown closed in Figures 1 and 2, and partially opened in Figure 3, whilst in
Figures 4, 5, 6 and 7 there are shown the catches used and in Figure 8 a general
view of the arrangement of the new fixing apparatus to sliding sashes.
Figures 9, 10 and 11 are similar views to Figures 1, 2 and 3, but the new
fixing arrangement is represented with a catch standing horizontally to the window.
Figure 12, shows the mode of application of this modification.
The fixing rod A is bent down at an angle at one end a and movably mounted in a
socket B fastened on the window sill b or any other suitable spot, whilst the other
end a of the rod A is fixed in a catch C attached vertically to the window sash c
and plays in the same when the window is opened or shut (Figures 1 to 3).
The catch consists of a binge shaped part d fastened on the window sash and
an eccentrically ended lever e engaging in this binge (Figures 4 to 7).
This fixing arrangement is connected in such a way with the window sill and the
window sashes that the socket B, movably connected at the end a with the rod A, is
screwed down on the window sill b. This being done, the clamp C is pushed on to
the end a of the rod A and the hinged part d screwed on to the window sash close to
the end a¹ of the bar.
If the lever e of the catch point upwards, the window sash is able to be freely
moved. If on the other hand it be desired to fix the same it is only necessary to
press down the lever e.
The rod A is held secured with greater force in that the eccentrically shaped
lobes ff of the lever e, when the latter is pressed down, lay themselves against the
bottom plate of the hinge d and thereby press the rod outwards against the walls of
the hinge g g (Figures 4 and 5).
In Figure 8 is shown the application of the new fastening arrangement to sliding
sashes. In this case also the rod A is movably arranged in a socket B fixed on the
window sill and the catch C is attached to the frame c of the sliding sash.
Whilst in the cases before described the catches C were vertically arranged on
the window sashes and secured directly to the same, in Figures 9, 10 and 11 a
modification is shown in which the catch C stands horizontally to the window
and is attached to the window sash indirectly by means of a guide plate D.

page_text: In the pattern here shown the rod A, movably situated in the socket B, has, at
its end a¹, a catch arrangement C consisting of a little crank provided with a cam
face which turns between two plates h¹ and h² also movably fixed on the end a¹
of the rod A of which the plate is also correspondingly cam shaped.
This catch arrangement C is therefore only inserted in a slit of an angle
plate D fastened on the window frame and in such a way that the walls of the
guide way lie between the plate and the crank h. If the crank h be in the
position shown in Figures 9 and 10, the window sash can be freely moved. If
on the other hand it be turned outwards, Figure 11, the window sash remains
securely fixed.
The mode of fitting the new fixing arrangement is as follows:-
The socket B is first fastened on the window sill, and then the angle plate D
on the window sash frame in such a way that it assumes the position shown in
Figure 10 when the window is closed.
For practical use the arrangement shown in Figures 9 to 12 is the best to be
employed because it forms a connected whole and can be affixed without any
difficulty.
The socket B can also be arranged as a ball joint so that it is immaterial
whether it be fastened on a surface lying rectangularly or obliquely to the window
sashi.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the sanie is to be performed, as communicated to me by my
foreign correspondents, I declare that what I claim is :-
An appliance for securing open doors or window sashes, comprising a rod A
movably mounted in a socket B affixed to the window sill said rod bearing a
catch arrangement (at its other end a¹ which is connected with the window
sashes either directly, as shown in Figures 1 to 8, or indirectly by means of a
guide plate D, whereby the retention of the door or window sash may be attained by
the simple turning of a lever e or of a crank h, substantially as described.
Dated this 9th day of Anail 1800
WM. P. THOMPSON & Co.,
Agents for the Applicant.