Improved Window Hinge.
Year: 1897

page_text: Σωρεοντα
I, FRANZ KRENZIN, of 65, Richardstrasse, Hamburg, Germany, Manufacturer, do
hereby declare the nature of this invention to be as follows:-
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The principle of the apparatus is to arrange the hinges of window leaves, opening
outwardly, in such a way as to render it possible to move said leaves till turning them
completely to the inside, the object of this being to make their painting, cleaning,
and the like, easier whilst avoiding the dangers connected with those various
operations.
In order to secure this ends, I support the leaves in rotatory cramps articulating,
at one of their extremities, with the window-leaf and secured with their other
extremity to the window-frame, in such a fashion as to allow the leaf to take a rotatory
motion to the very points where the cramps come in articulation with it, said leaf
being guided during its motion through guiding pins sliding in grooves managed in
the horizontal parts of the window-frame, above and under the leaf. Said guiding-
groove is widened to the junction place of the leaves, in order to let out the small
quantity of water that could have gathered in it.
100-
Improved Window Hinge.
I, FRANZ KRENZIN, of 65, Richardstrasse, Hamburg, 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 :-
The window provided with these hinges may be justly called the ideal window
inasmuch as every danger during the cleaning painting etc. is averted.
The way is obvious to the inventor desirous of avoiding the dangers occurring by
the cleaning of the windows. It is necessary to do away with all the protecting
apparatuses and to give the window itself a construction which will allow the exterior
sides of the sashes to be moved towards the interior.
It is with this principle in view that the inventor of the present invention has
succeeded in resolving this problem in such a way as to make the window invented
by him, the window of the future, as will be seen by the following description..

page_text: In the annexed drawing Fig. 1 is an inside view of a closed window, Fig. 2 shows
the same window open Fig. 3 is a view of the hinge and Fig. 4 is an outside view of
a window closed.
Fig. 1 shows the window shut. The sashes and the frame of the window do not
differ in any point from the construction of the windows opening on the outside
which are in actual use.
The hinge, Fig. 3 is composed of an iron piece c with two projections dat one
extremity. These two projections as also the opposite extremity of the piece care
provided with hinge-sockets e, into which pass bolts or pins f fixed with their
extremities to brackets g belonging to fastening plates h screwed respectively to the
frame and to the sash of the window. After undoing the sash fastener of French
or any system of window, the sashes can be turned almost completely, owing to the
rotary cramp-irons (Fig. 3). The guiding of each sash which is done by means of
guide pins fixed at a and having 8 millimeters diameter and a length of 10 millimeters
and which run in the grooves 6 10 millimeters wide and 12 m/in deep is particularly
ingenious. In this way the sash has a support so firm that the hinges are freed from
all weight and all oscillation or deviation is rendered impossible. The guiding-groove
is slightly deepened at the joining point of the sashes, to lead out the water that
might have lodged there by a hole made in the frame.
Fig. 4 shows the window with the sashes completely turned towards the interior,
as it should be for cleaning the outside.
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 :-
A new system of French sash windows, distinguished by rotary cramp-irons fixed
to sashes on one hand and to the frame in the other the guiding of each
sash being operated by guide-pins fixed above and below the sash and sliding in
suitable grooves of the frame; the whole allowing the sashes to turn completely to
facilitate the cleaning, painting and the like and to avert the dangers to which the
old systems of windows expose to during the said operations.
Dated this 10th day of December 1907
L. DUVINAGE,
Patent Agent, 8, Rue des Princes, Brussels, Belgium.
L. DUVINAGE,
Patent Agent, 8, Rue des Princes, Brussels, Belgium.