A New or Improved Device for Securing Opened Doors, Hinged Windows, or the like in their Position
Year: 1888

page_text: A New or Improved Device for Securing Opened Doors, Hinged
Windows, or the like in their Position
I, HERMANN RIESS of 8 Gubenerstrasse, Berlin, in the Empire of Germany, Manu-
facturer, do hereby declare the nature of this invention to be as follows
The object of this invention is a contrivance for securing hinged doors or windows
in any suitable position when opened The improved device essentially consists of
two oblong plates of convenient material overlapping each other at one end and
movably connected by means of a pin extending upward and having a screw thread for
receiving a nut
Each of the other extremities of said plates carries a pivot by
means of which the device is attached to the window or door and to the framework
respectively by aid of double loops or other suitable means The pivot of the lower
plate extends downwards through the loops or eyes secured to the framework and the
other upwards through those provided on the window or door This arrangement
serves to allow the latter to be unhinged without obstacle The fixing device does not
impair the free movement of the door or window, until the angle formed by the two
plates and varying with the extent of opening of the door or window is rendered
rigid or stationary thus arresting the latter in its position To this end a disc
provided on the vertex of said angle is attached to the upper plate by means of a
pin integral with the disc and extending through a perforation in said plate This
pin is adapted to catch into bores, a suitable number of which are circularly
arranged in the lower plate On pressing the disc and thereby the upper plate onto
the lower plate by means of a nut placed on the screw-threaded pin or by any other
suitable device, the said catch pin descends into the bore contiguous thereto, thus
rendering the plates immovable relatively to one another and arresting the door or
window in its position When the plates are not pressed together, the pin is allowed
to slide freely over the bores

page_text: The disc and catch pin may also be dispensed with and the temporary rigidity of
the angle effected by means of grooves and corresponding ribs or projections provided
on their inner surfaces or by any other convenient contrivance
Dated this 8th day June 1888
HERMANN RIESS
Per Huelser & Co,
Agents for Applicant
COMPLETE SPECIFICATION
A New or Improved Device for Securing Opened Doors, Hinged
Windows, or the like in their Position
I, HERMANN RIESS of 8 Gubenerstrasse, Berlin, in the Empire of Germany, Manu-
facturer, 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
This invention relates to a contrivance chiefly intended for securing hinged windows 1
or doors in any suitable position when opened
Referring to the accompanying drawing,
Fig 1 is a front view
Fig 2 a plan, of the improved device, while
Figs 3, 4 and 5 represent details, and
Figs 6, 7 and 8 a modification thereof
The metal plates B and C forming together with pin A a hinge-joint, carry at their
free ends the pivots D and E, which are passed through double loops or eyes F and G
provided on the wing H of the window or door and on the frame I respectively
The pivot D extends upward and the pivot E downward in the respective loops,
consequently the wing of the window or door can be unhinged without being in any
way impeded by the fixing contrivance
When opening or closing the window or door H, the fixing contrivance turns about
the pin A as well as about the pivots D and E without impairing the free movement
of the wing
But as soon as the plates B are rendered immovable relatively to the 3
pin A, they form a rigid angle, securing the wing of the window or door in its
position
The two hinge-plates B and C may be fixed relatively to each other, as shown in
Figs 1 to 5 by means of the adjusting disc K placed over the screw-threaded pin A,
and the screw nut L. The disc K rests on the upper hinge-plate B, and with its pin a, a