Lift for Railway Carriage Windows and other similar Windows.
Year: 1887

page_text: Date of Application, 18th Jan., 1887
Complete Left, 18th Oct., 1887
Complete Accepted, 18th Nov., 1887
Lift for Railway Carriage Windows and other similar Windows.
I, WILLIAM SAMUEL LAYCOCK of Ranmoor, Sheffield, in the County of York
Manufacturer do hereby declare the nature of my said invention for AN IMPROVED
CONSTRUCTION OF COMBINED DRAUGHT EXCLUDER AND WINDOW LIFT FOR RAILWAY
CARRIAGE WINDOWS AND OTHER SIMILAR WINDOWS, to be as follows:-
My invention of a combined draught excluder and window lift, refers more particu-
larly to the windows or sashes of Railway Carriage Doors, the chief object being to
construct an apparatus that can be fitted and attached to the present doors and sashes
without cutting or interfering with the woodwork or framing, and that shall be
simple and effective.
The draught excluder is a bar of wood, (or of other suitable material) made to
correspond with the opening through which the window or sash is raised and lowered ;
it is pressed down by the bottom edge of the sash when the window is lowered,
to the bottom or any point of the door frame, and is raised by the following
mechanism.
Connected to each end of the underside of the draught excluder, is a metallic
bracket constructed to fit easily into, and slide up and down the groove in which the
edges of the window slide.
Between the sides of the bracket, a spring barrel provided with an internal spring,
is supported so that it can revolve in the usual manner of such mechanism, and to its
periphery I attach a metallic tape, cord or other suitable connection of sufficient
length for the purpose, and I secure the other end to the door frame in the before

page_text: mentioned groove, but at such a height as to enable the excluder to be raised by them
to the desired position.
At the bottom edge of the brackets under the spring barrel, I arrange an adjustable
spring friction brake, the block being preferably a piece of leather, which is pressed
by the spring against the bottom of the before mentioned grooves in the door frame.
Instead of the excluder being fixed upon two separate brackets, the brackets
may be connected by a continuous piece of metal which may be formed to constitute
the excluder; or it may be made entirely of wood and the spring barrels be let
into it.
When the window is pushed down, the metallic tapes having one end secured to
the door frame, and the other coiled round the periphery of the spring barrels, cause
the barrels to rotate and coil up the springs, their reactionary force being utilized in
raising the window which is prevented rising or falling too rapidly, or is held in any
desired position by the controlling pressure of the friction brake.
LOOR
ROBT. F. DRURY,
Agent for the Applicant.

page_text: Improved Construction of Combined Draught Excluder and Window-
lift for Railway Carriage Windows and other similar Windows.
I, WILLIAM SAMUEL LAYCOCK of Ranmoor Sheffield, in the County of York,
Manufacturer 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 of an improved combined draught excluder and Window Lift, refers
more particularly to the Windows or Sashes of Railway Carriage Doors, the chief
object being to construct an Apparatus that can be fitted and attached to the present
doors and sashes without cutting or interfering with the framing or other woodwork,
and that shall be also simple and effective.
I have illustrated my invention in the accompanying sheet of drawings, in which
similar letters of reference which occur in the various figures, indicate the same or
similar parts.
Fig. 1 illustrates a Railway Carriage Door and Window or sash to which my
improved draught excluder and lift have been applied, part of the wood casing being
removed to show the lower part of the sash and apparatus.
Fig. 2, an enlarged view of one of the spring cases and other details of apparatus.
Fig. 3, enlarged front elevation of same.
Fig. 4, a Friction Brake.
The draught excluder consists of a bar of wood or other suitable material A, placed
immediately under, but not attached to the sash or glass frame B; it is made in
shape to correspond with the opening in the door through which the sash or glass
frame is raised and lowered, being carried down by the bottom edge of the glass-
frame, when the window is lowered, and raised with the window by spring mechanism
hereafter described.
a
At each end of the underside of the dranght (or dust) excluder A, I fix a double
sided metallic bracket C, or other equivalent means of supporting and carrying
spring case E, but if preferred the two brackets may be made in one continuous
piece, and may be constructed to form the excluder, or the brackets may be dispensed
with altogether and the spring cases be let into the woodwork forming the excluder.
I prefer to use a double sided bracket as shown in Figs. 2 and 3, and in the opening
or space between the sides of the bracket, a spring barrel or circular case E, is placed,
provided with an internal coiled spring F; it is supported upon an axis so that it can
revolve in the usual manner of such spring mechanism.
To the periphery of the spring barrel I attach one end of a metallic tape, cord,
chain or other equivalent connection G, of sufficient length for the required purpose.
and secure the other end to the bottom of the groove D, in the door frame at a
sufficient height to enable the sash to be raised by its aid to the highest point required
such a point is indicated by the letter H.

page_text: The internal coiled spring F, is secured at one end to the barrel or case E, the
other end being secured to the axle, and the tension or reactive power of the spring
can be adjusted by means of a Catch wheel I, and a pawl or catch J.
To retain the sash or glass frame in any desired position between "open" and
"closed" I fix in any convenient and suitable position in the edges of the glass frame,
one or more brakes of any simple construction, such as that shown in Fig. 4, which
consists of a block of leather K or equivalent substance, acted upon or forced forward
by a spiral spring 1, both being let into a corresponding hole made in the edge of
the sash or glass frame B, or in, or attached to the lower part of the bracket C. "The
block of leather would be forced against the back or bottom of the groove D, and the
frictional contact of the brake, or number of brakes being adjusted to slightly exceed
the winding up power of the springs F, it follows that the sash will be held or retained
at any position in the grooves between "open" and "closed."
When the sash or glass frame is pushed down, it carries the excluder A with the
spring cases before it, and the pressure on the metallic tapes G, (one end being
fastened at H as before described) causes the spring cases E, round which the tape is
coiled, to revolve and wind up the enclosed coiled springs and thus in conjunction with
the brakes to support the sash at any desired point.
Although I have described and shown the spring cases as placed under the sash or
glass frame I may if desirable, and to suit carriage doors of different construction place
them in a fixed position above the sash or glass frame, and attach the loose ends of
the tapes to the said sash or glass frame.
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-The construction and arrangement of the spring and lifting mechanism con-
stituting a combined draught excluder and window-lift, substantially as hereinbefore
described and as illustrated.
2 The construction and arrangement of the spring mechanism of a draught
Excluder and Window Lift, in which the spring cases as hereinbefore described, are
placed in the Ventilator case above the sash, and the ends of the metallic tapes pass
down each side, and are attached to the Excluder (or to the sash) for the purpose
specified.
Dated the 17th day of October 1887.