Improvements in Sliding Windows.
Year: 1892

page_text: Date of Application, 14th May, 1892
Complete Specification Left, 14th Feb., 1893-Accepted, 29th Apr., 1893
I, WENZL
PROVISIONAL SPECIFICATION.
Improvements in Sliding Windows.
TESCHAUER, of Budapesth, in the Kingdom of Hungary,
No. 8 & 10 Lipótkörút, Building Joiner, do hereby declare the nature of my
invention for "IMPROVEMENTS IN SLIDING WINDOWS," to be as follows:-
My invention relates to improvements in sash or sliding windows which can be
used as such or can be opened in the same manner as French windows said sashes
being almost perfectly airtight and especially so in comparison with the customary
sash windows now in use.
My improved sash window has the appearance of an ordinary window the upper
part being formed by an inserted single sash, turning on hinges whereas the lower
part is in the form of a double sash or sliding window said double window consisting
of two sashes, the frames to the panes being inserted almost airtight in the sash
frames. The outer sash turns in hinges and can only be opened when the inner
sash, also turning on hinges, has been entirely opened.
This arrangement of the window sashes has the advantage that only one single
fastening is necessary for both windows said fastening being attached to the inner
sash. The frame is provided on each side with two guide rollers arranged in four
grooves in the framework of the window.
On each side of the sash frames I arrange latches in suitable recesses and connect
such latches with a strong cord. This cord runs over a pulley at the upper end of
the framework and from thence downwards into a hollow space in the framework
where it is attached to a suitable lead or other weight.
The two weights, one on each side of the frame, are as heavy as the entire
sliding sash so that the latter will be in counterpoise.
Should one of the cords become ruptured a spring will press the pawl like lower
part of the latch which forms a two armed lever into the tooth like recesses of the
grooves in order to prevent the sash from falling.
Each of the pulleys is arranged in a separate groove which is not straight but
makes a curve of 45° inwards until same has passed the upper pane when it again
runs vertical.
The consequence of this inclined direction of the grooves is, that the sash
will, when lifted, be at first moved out of the framework and then pass fully into
the latter behind the upper sash, this arrangement representing the essential feature
of my invention.
The sash can be readily lifted, the same being balanced by the counter weights
and provided with a suitable handle which also serves to fasten the sash frame to
the framework.
The handle turning on the pivots is provided with pawl like extensions which in
consequence of the weight of the handle will gear into the toothed plate on the
edge of the framework and are only released by operating the grip or handle.
In closing the window the same moves at first vertically and will ultimately lay so
snugly against the framework that the window will be closed very tightly.
In order to attain a snug connection between the sash frame and the framework
two wedge fasteners are employed consisting of two plates fixed on the framework
or sash frame the wedges of which will gear into each other in closing the window.
nd thus securely draw the sash frame against the framework.
Dated this 14th day of May 1892.
ALLISON BROS.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Sliding Windows.
I, WENZL TESCHAUER, of No. 8 and 10 Lipotkörut in the City of Budapesth in
the Kingdom of Hungary, Building Joiner, 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 :-
My invention relates to improvements in sash or sliding windows which can be
used as such, or can be opened in the same manner as French windows, said sashes
being almost perfectly airtight and especially so in comparison, with the customary
sash windows now in use.
Fig. 1 is the elevation of the inner side of a sash window constructed on my
improved system;
Fig. 2 is a vertical section with a part of the frame in side view,
Fig. 3 is a horizontal section of the window.
My improved sash window has the appearance of an ordinary window, the upper
part being formed by an inserted singie sash turning on hinges, whereas the lower
part is in the form of a double sash or sliding window, said double window consisting
of two sashes a, b, the frames to the panes being inserted almost airtight in the sash
frames c.
The outer sash a turns in hinges a¹ and can only be opened when the inner sash
also turning on hinges 6 has been entirely opened.
This arrangement of the window sashes has the advantage that only one single
fastening d is necessary for both windows said fastening being attached to the inner
sash b. The frame c is provided on each side with two guide rollers e arranged in
four grooves in the framework g of the window.
On each side of the sash frames I arrange latches / in suitable recesses i and
connect such latches with a strong cord j. This cord runs over a pulley k at the
upper end of the framework g and from thence downwards into a hollow space k¹
in the framework when it is attached to a suitable lead or other weight 7.
The two weights, one on each side of the frame are as heavy as the entire sliding
sash so that the latter will be in counterpoise.
Should one of the cords; be broken a spring m will press the pawl like lower
part of the latch h which forms a two armed lever into the tooth like recesses n of
the grooves fin order to prevent the sash from falling.
Each of the pulleys e is arranged in a separate groove which is not straight, but
makes a curve of 45° inwards until same has passed the upper pane when it again
runs vertical. The consequence of this inclined direction of the grooves f is that
the sash will, when lifted, be at first moved out of the framework
and then pass
fully into the latter behind the upper sash, this arrangement representing the
essential feature of my invention.
9
The sash can be readily lifted, the same being balanced by the counterweight and
provided with a suitable handle o which also serves to fasten the sash frame c to the
framework g.
P
The handle o turning on the pivots o' is provided with pawl like extensions
which in consequence of the weight of the handle will gear into the toothed plate q
on the edge of the framework and are only released by operating the grip or
handle. In closing the window the same moves at first vertically and will ultimately
lay so snugly against the framework that the window will be closed very tightly.
In order to attain a snug connection between the sash frame c and the framework g
two wedge fasteners are employed consisting of two plates r, fixed on the frame-
work g and sash frame e the wedges as shown in Fig. 2 gear into each other
in closing the window and thus securely draw the sash frame c against the
framework.

page_text: Having now fully described and ascertained the nature of this invention
and in which manner the same is to be performed, I declare that what I
claim is :-
1) An improved sliding window which when opened or raised is moved away from
the window frame, and when lowered is pressed against such frame and tightly
closed, substantially as described in the Specification and shown in the accompanying
drawings.
2) An improved sliding window in which the frame c of such window is guided
by means of rollers e secured on the sides of the frame in grooves f of the frame-
work of the window, substantially as described and shown in the drawings.
3) In an improved sliding window the arrangement of two sashes a, b substantially
as described in the sliding frame c in such manner that the sliding window at the
same time forms a double window substantially as described and shown in the
drawings.
4) In an improved sliding window the arrangement of suitable weights / within
the framework of the window such weight being connected with cords running over
guide pulleys and being fastened, substantially as described and shown in the
drawings.
5) In an improved sliding window the arrangement of latches such as h engaging
recesses of the grooves when the cords j are broken so as to prevent falling down
of the sliding window substantially as described and shown in the drawings.
6) The improvements in sliding windows substantially as herein before described
and as illustrated by the accompanying sheet of drawings.
ALLISON BROS.,
Agents.