Improvements in Hinges for Doors, Windows, and the like.
Year: 1897

page_text: Date of Application, 3rd May, 1897-Accepted, 5th June, 1897
COMPLETE DI MUIFICATION.
Improvements in Hinges for Doors, Windows, and the like.
I, Dr. ELEMÉR MURANYI, Lawyer of Budapest, Egyetem Utezi 1, Szam, in
the Kingdom of Hungary, Austrian Empire, 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 the present invention is a hinge for doors and windows, which is
constructed in such a manner, that an automatic closing of the doors and windows
is obtained.
The invention is shown in the annexed drawings in which
Figure 1 is a view of the hinge in the position which it is in when the door
is closed.
Figure 2 shows a front view of the hinge when the door is open.
Figure 3 is a front view of the hinge when the door is opened at an angle
of 180°.
Figure 4 is a front view of a modification of the hinge when the door is opened
at an angle of 90°.
Figure 5 is a side view of Figure 4.
The hinge consists of the two flaps a and b. The bottom flap a which is
provided with the pivot, is screwed to the door or window frame and the top
Hap which is provided with the hole corresponding to the pivot, is screwed to
the window or door. The bottom flap a is so constructed that the edge around the
pivot is screw-threaded on either the one or both sides, according to whether the
respective door or window opens in one or both directions.
The top flap b is provided at its bottom end with a screw-thread projection d,
corresponding to that of the bottom flap, which projection d slides up and
down upon the screw-thread like edge caround the pivot in such a manner
that they touch each other as little as possible, say for instance on one point only,
whereby too much friction is avoided. As soon as the door or window is opened,
6 moves with its point d upon the edge c upwards, the door or window is lifted in
this movement till the highest position is reached, when the door or window is
fully opened. As soon as the door or window is released the top flap b slides with
its projection d upon the screw thread like edge c of the pivot a, downwards, and
automatically closes the door or the window as the case may be, so that the use of
special door closers is obviated.
Figures 4 and 5 show a modification in which the projection d is not formed in
the above said manner, that is rounded, but is cut straight and the screw thread
like edge c, of the bottom flap a is also provided with a straight surface whereby
it is ensured, that the door or window does not close by its own weight as long as
it is fully opened, but it is necessary to start the door in motion.
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:-
1. A hinge for doors and windows characterized by the flap with the holes in
for the pivot, being provided with a screw-thread like projection which slides upon
the corresponding screw-thread like upper edge of the bottom flap in such a manner

page_text: that the friction of the surfaces is minimised substantially as and for the purposes
herein described.
2. A hinge characterized thereby that the edge of the top flap as well as the
edge of the bottom flap are cut straight at their bottom and top end respectively,
substantially as and for the purposes herein described.
Dated the 3rd day of May 1897.
PHILLIPS & LEIGH,
No. 22 Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.