Improvements in Windows and Window Frames for Railway Carriages.
Year: 1896

page_text: Date of Application, 9th Jan., 1896-Accepted, 2nd My, 1896
COMPLETE SPECIFICATION.
Improvements in Windows and Window Frames for Railway
Carriages.
We, ALEXIUS CSISZER and ANTON KARLY both of The Hungarian State
Railway, 28 Rodmanierbystrasse Budapest, Hungary Manufacturers do hereby
declare the nature of our said invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
The sliding windows hitherto used in railway carriages have the defects that no
air tight closure is thereby provided, moreover the steel or wire springs used in
connection thereto wear promptly down so that repairs are frequently needed
while the rattling noise made by the same windows and due to their looseness is a
source of great inconvenience to the passengers.
The object of this invention is an air tight window frame which is so constructed
as to remedy all the above defects.
In the accompanying drawings:-
Figure 1 is a cross section.
Figure 2 a side view.
Figure 3 is a section on line a. x. of Figures 1 and 2 showing the improved
window frame.
Figures 4 and 5 are part elevation and sectional plan respectively on line .. on.
an enlarged scale.
To obtain an air tight closure or slide the frame a is connected with the sashes b
which slide up and down by means of four suitable rails or guides c. d bent
or formed correspondingly and wherein slide up and down the movable sashes.
Owing to making use of these rails there are formed several corners or an irregular
junction in cross section, so that the air or draught cannot pass through. In order
to open the window the sash & is raised by the aid of the strap k until the angular
projection is placed over the protuberance m, after which the sash b is pulled
inwards as well as that part of the frame a which is movable on the hinge e. On
each side of the sliding sash b (see Figs. 4 and 5) is fixed a bar or rail h which
carries the bolt g. This bolt slides upon the rail ffixed to the parting bead i and
furnished with a projection o. The spring n is so arranged on the same rail as
to constantly exert a pressure upon the bolt g. The projection o against which.
the bolt g strikes at the right time allows the frame to be pulled inwardly a certain
distance only as the bolt g fixed to a strikes against the projection o. In this
position the spring n is cocked to the utmost and has a tendency to push the bolt g
back into its original position which can only happen when the sliding sash is pulled
up again.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what
we claim is :-
1st. A window frame for railway carriages forming an airtight closure or slide
characterized by the guide rails d. and c for the moveable sash substantially as
herein set forth and shown.
2ud. An air tight window frame for railway carriages characterized by the
bolt 9 sliding on the guide rail f and the spring n acting on the bolt g so-

page_text: as to bring it back to its original position substantially as herein set forth and
shown.
Dated this 8th day of January 1896.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicants.