Improvements in the Method of and Means for Hanging the Sashes of Railway and other Carriage Doors.
Year: 1891

page_text: Date of Application, 17th Feb., 1891-Accepted, 21st Mar., 1891
COMPLETE SPECIFICATION.
Improvements in the Method of and Means for Hanging the
Sashes of Railway and other Carriage Doors.
I, STEPHEN GEORGE HUNTLEY, of Delce Cottage, Brodrick Road, Upper
Tooting, in the County of London, Builder's Manager, 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 the method of and means for hanging
the sashes of railway and other carriage doors, but more particularly to sashes hung
by lines passing over pulleys and provided with a counterpoise; and the objects of
my invention are
(a) To prevent the sash being shaken out of the position into which it has
been adjusted by the passenger.
(b) To prevent the sash rattling in the grooves in the styles of the door.
(e) To provide an efficient weather guard adapted to prevent wet trickling
down into the sash box in the door.
It has heretofore been proposed to hang the sashes of railway and other carriage
doors by lines from pulleys, a counterpoise being provided at the opposite ends of
the lines, the weight of the counterpoise being equal to that of the sash. The
drawback to this arrangement has been found to be this. The sash and counter-
poise will not remain in equipoise when the carriage is travelling, inasmuch as the
accidental motions or shocks delivered upon both sash and counterpoise upset the
balance between them, and one of them is pulled by the other cither up or down as
the case may be.
Now according to this part of my present invention, I make use of elliptical or
elongated pulleys as distinguished from the circular ones hitherto used.
The second object of the invention is achieved by fitting the sash with resilient
studs adapted to be kept in close contact with their respective grooves by
springs.
The third part of the invention consists in fitting a shaped water bar forming a
trough to the bottom rail of the sash, and a shaped water bar forming an inverted
trough to the top of the box, in such relative positions that when the sash is up as
high as it will go, the free edge of one trough is within the other trough.
In order that my invention and the means by which it is to be carried into
practical effect may be thoroughly understood, I will now describe them in detail,
referring in so doing to the accompanying drawings which are to be taken as part
of this Specification and read therewith.
Fig. 1 is a front elevation of the inside face of a railway carriage door partly in
section and shewing the sash box open.
Fig. 2 is a front elevation of the inside face of a railway carriage door in further
illustration.
Fig. 3 is a vertical transverse section.
Figs. 4 and 5 are respectively front and side elevations of an elliptical or
elongated pulley.
Figs. 6 and 7 are respectively front and side elevation of a modified form
of pulley.
The latter are made
A is the sash B, the counterpoise, and c, c, the sash lines.
fast to the bottom edge of the sash through dependent rods d which make up the
vertical distance between the sash and the adjacent terminals of the lines c, c.
d, dare grooves in the counterpoise provided for the purpose of allowing it to
clear the rods d. Up to this point the construction is similar almost to being
identical with inventions already published.

page_text: E, E are the sash pulleys and these are elliptical or clongated instead of being
round as hitherto. The advantage of their ellipticity is this that whereas, with
round pulleys, a sudden jar or a succession of jars may or will upset the balance
between the sash and the counterpoise, no jar or succession of jars will suffice to
lead up to rotation of the pulleys, when their major axes are horizontal or
approximately so. The reason of this imperturbability is obvious.
F, Fare spring devices or resilient studs fixed in the opposite edges of the sash
and in the plane of it. Their function is to maintain constant pressures or contacts
equal in both, i.e., opposite, directions against the respective styles of the door, and
as such contacts are resilient, and each, preferably, opposite its fellow, all jarring
lateral motion of the door will be absorbed, and all rattling prevented.
G is the sash lift which is fixed, as heretofore, to the top rail of the sash.
The modification of the elliptical pulley illustrated in Figs. 6 and 7 consists in
the diametrical extensions a, a of the shroudings or sides of the pulley.
The third part of my invention is illustrated in Fig. 3.
is a trough preferably of sheet metal. It is fixed along the bottom edge of the
bottom rail of the sash on the outside, so that when the latter is up, the lip of the
trough will be at the top of the sash box. h is an inverted trough of any suitable
material. It is fixed to the top of the sash box in the position indicated by Fig. 3,
so that when the sash is up, the inner lip, i.e., the one next to the sash, will be
inside the trough g.
The bottom trough has or may have india rubber or other
material placed therein to make a perfect joint and to prevent rattling.
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 :-
1. The combination of sash, counterpoise, lines, and elliptical pulleys, as set
forth.
2. The combination of sash, grooves in which it slides, and resilient studs in the
plane of the said sash, as set forth.
3. The combination of sash, counterpoise, lines, elliptical pulleys, sash grooves
and resilient studs in the plane of the sash, as set forth.
4. The improved weather guard being a combination of sash bar, sash box,
trough, and inverted-trough, as set forth.
Dated this 17th day of February 1891.
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicant.
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicant.