Improved Safety Shutters or Screens for Shop Windows and the like, and for Theatre Curtains.
Year: 1896

page_text: Date of Application, 1st Aug., 1896-Accepted, 26th Sept., 1896
COMPLETE SPECIFICATION.
Improved Safety Shutters or Screens for Shop Windows and the
like, and for Theatre Curtains.
.
I, AUGUST EDMUND SCHMIDT, of 6 Hallesche Strasse, Leipzig, in the Empire
of Germany, Jeweller, 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 safety shutter or screen of novel construction and
effect.
The new screen is suitable for shop windows or windows in general and also for
larger curtains as used for instance in theatres for safety against fire. It is
characterized by the peculiar arrangement and co-operation of the parts which form
the screen surface.
These parts which consist either of discs, rings or of lengths of tube are connected
together in such a manner that each ring or tube is rotarily movable by itself but
so that they form however together with the other parts a securely closing
surface or wall which will resist attempted burglary and can be easily pulled or
rolled up.
The annexed drawing shows examples of the invention hereinafter explained.
Fig. 1 shows the screen in interior view on a show window.
Fig. 2 is a longitudinal section thereof."
Figs. 3 3 and 4 show the exterior view and sections of screens which are formed
by rings and discs.
Figs. 5 and 6 show a screen formed of lengths of tube and discs.
The screen consists of a number of carrying rods a lying parallel to one another
over which are placed in such a manner rings b (Fig. 3) or discs b provided with
two openings y y (Fig. 34) of convenient metal preferably of hardened steel that a
joint like connection as shown in Figs. 3 34 and 4 is produced.
This joint-like connection forms a surface which will give an extraordinary
resistance against attempts at burglary.
By thus connecting any number of discs 6 or 61 screens of any size can be
produced.
The screen formed by discs and carrying rods is connected with an axle which
can be formed as roller A so that by turning the roller A by means of convenient
gear for instance a crank with ratchet-wheel Figs. 1 and 2 the screen can easily be
rolled up.
The lateral guiding of the plate as well as the construction of the roller with
winding gear can be carried out in various ways according to the circumstances.
For screens of greater dimensions it is more convenient and for reducing weight
it is preferable to use instead of the rings b or discs 6' tubular pieces d Figs. 5
and 6 which are kept at the right distance by carrying rods a which alternately
touch the upper and the under inner surface of the tube pieces lying side by side
along their whole length or as shown in Figs. 5 and 6 the rods a may be connected
in pairs by the tubes d a rod of each pair being connected to a rod of the next
pair by connecting discs h.
Between the tube-pieces d lying end to end there may also be arranged connecting
dises which give to the whole a secure and durable connection.
The tubular pieces are turnable each by itself and consequently give no point of
application for burglars still less if these tubular pieces are produced of hardened
material.

page_text: The ends of the carrying rods a can be formed so that they are guided in special
grooves in the window framing.
The size of such screens composed by tubular pieces may vary and in accordance
therewith the winding mechanism may also be constructed in different ways
according to the weight and size of the screen.
The length or width of the single tubular pieces forming the width of the screen
may vary and also any material may be used for such screen.
Having now particularly described and ascertained the nature of the said inven-
tion and in what mauner the same is to be performed, I declare that what I
claim is :-
A rollable safety shutter or screen for shop windows or the like or for safety
curtains in theatres consisting of rings 6 or discs b' or tubular pieces d carried by
rods a to form a solid but articulated flexible plate which by means of convenient
winding apparatus can be rolled upon. a roller A safely against burglary being
attained by the mobility and the hardness of the single rings discs or tubular
pieces.
Dated this 1st day of August 1896.
HERBERT HADDAN & Co.,
18. Buckingham Street, Strand, London, W.C., Agents for Applicant.