and Carriages in General.
Year: 1886

page_text: and Carriages in General.
I, BERNHARDT TETTWEILER of Köngin-Augusta-Strasse, Berlin, in the Kingdom
of Prussia and German Empire, Basket Manufacturer do hereby declare the nature
of my said invention for IMPROVEMENTS IN WINDOWS FOR THE DOORS OF RAILWAY
CARS AND CARRIAGES IN "GENERAL" and in what manner the same is to be
performed to be particularly described and ascertained, in and by the following
statement:
Fig. 1) shows a car door inner view, with the new window contrivance quite
closed.
Fig. 2) shows same the window opened.-
"
"
"
3) is a cross section through Fig. 1, plan view.
4) is a cross section through Fig. 2 plan view.
5) is Fig. 4 enlarged, the window fully opened.
Fig. 6) shows the double hook g.
The windows commonly used hitherto in railway cars and other vehicles are
made to be lifted out of and lowered into a box formed by the double lining of the
door by means of a strap, according as fresh air has to be admitted or not.
In rainy or stormy weather the windows can therefore not be left open and the
result is that on long journeys and in bad weather an atmosphere injurious to
human beings prevails in cars filled with passengers.
The inventor has applied a contrivance to a window by means of which the
latter can be moved so as to suit the draught of air in all directions, while the
slanting position given to the window by this contrivance causes a sufficient
ventilation and prevents the rain from getting in when the window is open.
In the frame A of the window, which is made to move up and down, and in the
middle line of it is a pane B which is made to turn horizontally and is fixed in the
position given to it on both sides by hooks g. Let it be supposed that the railway-
train is running in the direction indicated by the arrow a and further that the
window is on the right side of the carriage, then the window must be in the
position shown by the Fig. 5. The wind will in this case break against the slanting
position of the window and will in accordance with well known physical laws suck
off the bad air contained in the car. Good air will penetrate into the carriage
All

page_text: through the opening left by that half of the window which is opposed to the wind
and by this means a continuous current of good air is conducted into the car.
In rainy weather the same thing will occur, for the drops of rain beating against
the slanting surface will naturally run off outwards. The curtains, which are
fastened between two movable vertical rods, can at the same time be drawn on as
illustrated in Fig. 5. If the train is running in the opposite direction, in that
indicated by arrow b, then the window must be placed in position correspondingly.
For the purpose of keeping the window in any slanting position whatsoever a
double hook g is applied to the lower part of frame B and in the middle of it, the
hook g runs in a groove, is adjusted by a thumb-screw, and catches in a latch F
on the outside of the door.
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:
1.) In the door of railway cars and other carriages the application of windows B
inovable in all horizontal directions, for the purpose of making the wind break
against the slanting position of the windows and by reason of this exhaustive
motion suck off the bad air out of the car, and for the purpose of continually
conducting fresh air into the carriage.
2.) The application of a double-hook g to the movable window of railway car or
other carriage, which double hook catches into a corresponding latch F situated on
the outside of the door for the purpose of holding the window fast in the position
given to it.
1
1000