Improved Means for Supporting Sliding Sashes and Frames or Shutters for Railway Carriage and other Windows.
Year: 1891

page_text: Date of Application, 26th Sept., 1891
Complete Specification Left, 14th Jan., 1892-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improved Means for Supporting Sliding Sashes and Frames or
Shutters for Railway Carriage and other Windows.
I, JOHN JULIUS ADLER, of the Carriage and Waggon Department, Rajputana
Mulwa Railway, Ajmere, East India, Assistant Superintendent, do hereby declare
the nature of this invention to be as follows :-
My invention relates more especially to railway carriage windows, and consists
in means whereby they may be securely retained at any desired height and yet be
raised and lowered with facility.
I would have it understood, however, that my invention is not limited in this
respect and that it may be applied with equal advantage to other windows as well
as to Venetian and other frames with which railway and tramway carriages,
especially in hot climates, are often furnished.
The invention consists in the combination, with a pair of transverse thrust rods
mounted in the sash or frame and adapted to bear against the bottom face of the
groove in the door pillar or stile in which the sash or frame runs, of a spring which
tends to normally hold the rods in contact with the groove with pressure sufficient
to support the window or frame at the height at which it may be set, and means
for overcoming the stress of the spring; the arrangement being such that the rods
will be withdrawn when the window or frame is to be raised or lowered, by the mere
act of supporting said window or frame either by a finger lever or lift or by the
ordinary strap, and will when the lift or strap is released, be immediately pressed
into contact with the face of the groove so as to retain the window in position.
The invention may be applied either to an ordinary wooden frame or to a hollow
metal frame sash. The spring is of approximately W or U shape and is mounted
centrally in a recess in the frame. Its extremities are jointed to the inner ends of
the thrust rods and its bow or centre part has a reverse curve which is acted upon
by a cam carried by a lever in such manner as to cause the jointed ends of the
spring and rods to approach one another sufficiently to release the window. The
cam is mounted to oscillate and the lever is fixed on its axis and when no strap is
employed constitutes the finger piece lever or sash lift. This lever is preferably
cranked, that is to say it extends horizontally in one direction and is then bent
back upon itself in order to obtain a multiplying power and avoid any tendency of
the frame to cant.
The straps now in use can be retained and utilized for raising the window and in
this case the device would be mounted in the bottom sash rail and the strap would
be looped around the free end of the lever. When no strap is used, as might be
the case in third-class carriages or in tramcars, the device would be mounted in the
top rail of the sash or frame.
The outer extremity of the thrust rods screw into adjusting pieces or shoes by
which their effective length may be varied, said shoes being attached to the upper
end of a flat spring which is screwed at its other end to the window sash or frame,
the free end of this spring bearing against the bottom face of the groove in the
pillar or door stile.
One great advantage of my invention is that it effectually prevents the rattling
of the sash or frame but if found desirable the springs may be faced with the
blocks of india-rubber which are sometimes used for this purpose and which may
consequently be utilized.
The thrust rods are received in a longitudinal groove in the sash frame which is
protected by a cover plate. In the case of hollow metal sash or other frames,
the rods would be supported by and slide in cleats or eyes secured to the inner

page_text: surface of the frame and the springs would be attached to a filling piece fixed
between the cheeks of the frame.
. Dated September 26th 1891.
J. J. ADLER,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
Improved Means for Supporting Sliding Sashes and Frames or
Shutters for Railway Carriage and other Windows.
I, JOHN JULIUS ADLER, of the Carriage and Waggon Department, Rajputana
Mulwa Railway, Ajmere, East India, Assistant Superintendent, 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 more especially to railway and tramway carriage window
sashes and shutters including Venetian or louvre shutters with which such windows
are provided in hot climates, and consists in means whereby such sliding sashes or
shutters may be supported at any desired height and yet be raised and lowered
with facility.
My invention is not however limited to carriage windows but may be applied
with equal advantage to house windows.
The invention consists in the combination of a pair of transverse thrust rods
mounted to slide in the sash or frame and adapted to project from the sides
thereof, a spring which tends to normally force the rods in contact with the bottom
faces of the grooves in which the sash or frame runs with pressure sufficient to
support the sash or frame at any height to which it may be set, and of means
serving both to overcome the stress of the spring and to support the sash or frame
in the act of raising and lowering it so that the rods will be retracted by the mere
act of supporting the sash or frame, either by a finger lever or lift or by a strap
and will be immediately thrust outwards when the weight of the sash or frame
ceases to be so supported by the hand.
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein
Figure 1 is a face view, partly in section and with the cover plate and operating
lever removed.
Figure 2 is an edge view, Figure 3 a vertical section (on line 1-1 Figure 1) and
Figure 4 is a top edge view or plan (with the cover plate removed) shewing the
support of my invention applied to the top rail of the sash.
Figure 5 is a face view of the operating lever and finger-lift separately.
Figure 6 is a view similar to Figure 1, of the device as applied to the bottom
rail of the sash for operation by a strap.
Figure 7 is an elevation and Figure
the strap.
a plan of the operating lever for use with
Figures 9 and 10 are alternative forms of the shoes at the ends of the thrust
rods, applicable to either of the arrangements shewn in the previous figures, and
Figure 11 shews the device as applied to act at one side of the sash only.
Figure 12 is a part-sectional face view, and Figure 13 a section (on line 2-2
Figure 12) shewing the device applied to a sash-frame made of sheet metal,
instead of wood as in the previous figures.
Figure 14 is a sectional face view, and Figure 15 an edge view, shewing an
alternative form of the device also applied to a metal frame sasb.
The same letters of reference indicate the same parts in all the figures.
The invention may be applied either to an ordinary wooden frame, as in
Figures 1 to 11, or to a hollow metal frame sash, as in Figures 12 to 15. The
spring A is of approximately W or U shape and is mounted in a central recess in

page_text: the top or bottom cross-bar of the sash or other frame. It is held in place and
caused to act in the manner described, by pins a fixed in such recess and its
extremities are jointed as at 6 to the inner ends of the thrust rods B, the normal
tendency of the spring being to force the rods outwards. The curved bow or
centre part of the spring is acted upon by a cam C journaled in the recess and
operated by a lever D in such manner as to flatten or straighten the middle curved
part of the spring and thereby, in conjunction with the pins a, cause the ends of
the spring and rods to approach one another.
в
When no strap is employed the lever D constitutes the finger-piece lever or
sash-lift and is preferably of the form shewn. To the outer ends of the thrust
rods are attached shoes E by a screw connection e which enables the effective
length of the thrust rods to be varied, said shoes being attached to flat springs e¹
screwed at e² to the window sash or frame so as to admit of the shoes being forced
outwards and bearing against the bottom faces of the grooves in which the sash or
frame runs.
The part of the shoe which forms the contact surface may be of
metal as at the left of Figures 1, 4, and 6, and in Figures 9. 14, and 15, or of wood,
leather, or india-rubber as at the right of Figures 1, 4, and 6, and in
Figures 10, 11, and 12. When leather or rubber is used, rattling is effectually
prevented. The thrust rods B are received in a longitudinal groove in the sash
frame which is protected by a cover plate. In the case of hollow metal sash or
other frames, the rods would be supported by and slide in cleats or eyes secured
to the inner surface of the frame and the springs would be attached to a filling
piece fixed between the cheeks of the frame.
If it be desired to retain the strap now used for raising the sash and to utilize it
for that purpose and for operating my device, the latter would be mounted in the
bottom sash rail as shewn in Figures 5 to 8 and the strap would be looped around
or fastened to the lever instead of being attached to the sash.
When the device is applied to act at one side only of the sash, the end of the
spring to which no thrust rod is attached would be made fast, as shewn in
Figure 11.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. A sash or shutter support consisting in the combination of one or a pair of
thrust rods each terminating in a shoe adapted to bear against the bottom of the
groove, a spring adapted to force said rod or rods outwards and a cam or its
equivalent acting on the spring in such manner as to overcome and reverse its
tendency and operated by a lever forming also the sash-lift, substantially as
specified.
2. The respective combinations of parts constituting the respective arrange-
ments of sash or shutter supports operating substantially as set forth.
Dated this 12th day of January 1909.
J. J. ADLER,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.