Improvements in and relating to the Windows of Railway and other Carriages.
Year: 1893

page_text: Date of Application, 20th Sept., 1893,
Complete Specification Left, 20th June, 1894-Accepted, 4th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Windows of Railway and
other Carriages.
EDWIN ROBERT WETHERED Lieut. Colonel of 21 Brewer Street Woolwich
Kent do hereby declare the nature of this invention to be as follows:―
I place on the centre of the inside rail, of a railway or other carriage door,
secured by its flanges, a small metal frame or three sided box, having a top, and
two sides. Outside the inner top edge, I fix a roller, over which the raising strap
of sash passes, and enters the metal frame directly under the top plate. In the sides
of this frame I make two corresponding inclined slots, carrying a roller which
travels up these inclines, under the strap, in a direction to wedge it against the upper
plate, as the strap draws up the roller, and thus retains the sash in position.
When
the strap is grasped, and slightly pulled, the roller will drop to the lower end of
inclines, and set the strap free to raise or lower the sash, as soon as the strap is
allowed to rest on the roller, the latter will be automatically drawn up, and retain
the sash in its then position. I may employ a sliding wedge, or eccentric clamp to
obtain a similar result.
Dated this 19th day of September 1893
COMI DELE DE MULTICATION
Improvements in and relating to the Windows of Railway and
other Carriages.
EDWIN ROBERT WETHERED Lieut. Colonel 21 Brewer Street Woolwich,
Kent, 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:
I place on the centre of the inside rail of a railway, or other carriage door, and
secured by its flanges, a small metal frame, or three sided box, having a top and
two sides. Outside the inner top edge, I fix a roller over which the raising strap
of sash passes, and enters the metal frame directly under the top plate. In the
sides of this frame, I make two corresponding inclined slots, carrying a roller which
travels up these inclines, under the strap, in a direction to wedge it against the
upper plate, as the strap draws up the roller, and thus retains the sash in position.
When the strap is grasped and slightly pulled, the roller will drop to the lower
end of the inclines, and set the strap free to raise, or lower the sash. As soon as
the strap is allowed to rest on the roller, the latter will be automatically drawn up,
and retain the sash in its then position. I may employ a sliding wedge, or
eccentric clamp to obtain the same result.
I now refer to the drawings
Fig. 1 is a front view of a carriage door. Fig. 2 is a sectional side or end view
of same.
a. is the metal frame secured to the rail of door. a 1. is the top of frame
under which the window strap passes, and against which the strap is nipped, and
held as the roller d. is drawn up the inclined slots f. thus retaining the sash in
position as shown. Figs. 3. 4. 5, are similar front, and sectional views, showing a
slight modification, a curved eccentric cam 1. pivoted at j. being employed to nip
the strap b. In Fig. 5 this cam is shown with the window strap resting on the cam

page_text: ready to suck it up, as the window descends, and nip the strap between the cam and
the plate a 1. of frame.
The outer edge of this cam is slightly toothed to catch the strap more readily.
When the strap is nipped between the upper surface of the cam f1. and plate a 1.
the toothed edge ceases to bear on the strap. The cam may be employed without
a toothed edge, or may be otherwise roughed if necessary. c is the window
e is the door.
This cam action may be employed in various ways, or forms, it may curve the
reverse way, to that shown, or the cam may be made with a very slight curve, or
perfectly flat, and the strap rest on its top edge to draw it
up.
All that is required, is to shape the upper or fixed plate, to meet the form and
position of the cam, so that the strap may be securely nipped and held between
the two.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim, is
The means for retaining the sash of a carriage window, in any required position,
by causing the strap which raises, or lowers the window, to be nipped, and held
substantially as described.
Dated this 19th Jar of Tuna 1801
E. R. WETHERED.