Improvements in Railway Carriage and other Sash Windows.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Railway Carriage and other Sash Windows.
We, EDWARD JACOB HILL, of 11, Victoria Street, in the City of Westminster,
Civil Engineer, and VINCENT WALKER HILL, of The Constitutional Club,
Northumberland Avenue, London, S.W., Gentleman, do hereby declare the nature
of this invention to be as follows:-
This invention relates to that kind of railway carriage and other sash windows
which is adapted to be raised by a strap and when in the fully raised position to be
moved outward in its grooves into engagement with a fence rail by which the
window is then supported, and the invention relates to means whereby the window
will be caused to be automatically moved outwards into engagement with the fence
rail by the effect of the pull on the strap in raising the window so that the window
may be raised to the fully closed position by a continuous pull on the strap without
the necessity of using two hands as usual, the one to raise the window and the
other to move it outwards.
.
The invention consists in hinging to the bottom of the window sash a
strip or bar to the lower part of which the strap is attached, this bar being
adapted by virtue of the pull on the strap to bear against the inner wall of the sash
run in such manner as to tend to assume a position in a plane at an angle to the
plane of the window sash and consequently to act as a toggle lever, by the thrust
whereof the sash is forced outwards as soon as its bottom rail rises above the level
of the fence rail, the sash then dropping over and into engagement with the flange
of the fence rail. When in this position the hinged bar lies across the well or
boxing in the body of the door in which the sash is received when lowered and in
that position serves to prevent draught rising through the body of the door from
drainage holes at the bottom part thereof. When the sash is supported by the
strap in any intermediate position, the toggle-like action of the bar due to the
weight of the sash on the strap will also have the effect of causing the sash to bind
against the outer wall of its run and so to prevent rattling of the sash.
In order to lower the sash it is only necessary to lift it inwards over the fence
rail, the hinged bar then assuming a position in the plane of the sash so that the
two slide down freely together as one.
Improvements in Railway Carriage and other Sash Windows.
We, EDWARD JACOB HILL, of 11, Victoria Street, in the City of Westminster,
Civil Engineer, and VINCENT WALKER HILL, of The Constitutional Club, Northum-
berland Avenue, London, S.W., Gentleman, do hereby declare the nature of this
רנס...D

page_text: invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
"
This invention relates to the windows of railway carriages and to other similar
windows of which the sash is provided with a lifting strap and is adapted when
fully raised to be moved over a "fence" rail by which the sash is then supported;
and the invention relates to means whereby the sash will be moved over the "fence
rail by the effect of the pull on the lifting strap itself so that the operation of
raising the sash and moving it over the "fence" rail may be effected by a con.
tinuous pull on the strap which may be applied by one hand without the use of the
other hand, or of springs to force the sash outwards over the "fence" rail.
The invention is illustrated in the accompanying drawings forming part of this
specification and will be described with reference thereto, Figures 1 and 2 being
vertical cross-sections of the lower part of a railway carriage door, the window
being in the lowered and fully raised positions respectively. Figure 3 is an inside
face view of part of the door with the window raised. Figure 4 is a cross section of
a slightly modified form. Figures 5 and 6 shew (to a larger scale) modifications of
details. Figure 7 is a face view and cross section of a further modification.
The invention consists essentially in the combination with the sash A and the
sash-lifting strap C of a flap or bar B hinged to the lower edge of the sash A and
working in the sash grooves E, the strap being so attached to this flap or bar
(instead of to the sash itself as heretofore) that, by the mere pull of the strap, the flap
or bar will be caused to assume the inclined position shewn in Figure 2 and to bear
against the side of the sash groove in such manner as to act as a toggle tending by
its thrust to force the sash A outwards over the "fence" rail D when the sash is
completely raised; the toggle-like action thus produced dispensing with the use of
springs (as heretofore used in connection with a similar hinged bar) which are liable
to get out of order. The bar B is hinged to the sash A by hinges a on the inner
face of the sash and is provided with a joint-covering flange or lip b. The flap or
bar is also formed with end tenons B¹ which engage in the sash run or grooves E
and it is normally constrained to assume a position in the plane of the sash as
shewn in Figure 1, so long as the sash is engaged within the narrow grooves E
within the boxing of the door, the tenons B¹ being however bevelled or rounded off
as shown in Figure 5 so as to permit of the bar B assuming the inclined position
shewn in Figures 2 and 4 when the sash is raised as in Figure 2. The end tenons B¹
of the bar B may be replaced, by rollers B2 pivoted on brackets fixed to the ends of the
bar B as shewn in Figure 6 the rollers B2 engaging in the sash run or grooves E.
The strap C is attached to the lower edge of the bar B as at e and passes up over
the usual roller g on the "garnish" rail G. The lower edge of the sash A is shod
with the usual angle iron strip A¹, the downwardly projecting flange of which passes
over and engages with the usual upwardly projecting edge of a metal strip FI fixed
to the "fence" rail D when the sash is in the closed position shewn in
Figures 2, 3, 4.
.
In addition to the strap C to be used for lifting the sash we prefer to provide a
second strap I which forms the subject of another application for Letters Patent
dated the 13th December 1897 and numbered 29,490. This auxiliary strap is
attached by a screw plate i directly to the upper edge of the bar B (or it might be
attached to the sash itself) and lies upon the strap C as it passes over the roller.
It may either be loose as shewn in Figure 4 or pass through a loop (1 attached to
the strap C as in Figures 1 and 3, the strap I in either case terminating in a stiff
leather tab C2, which serves as a hand-hold or stop. This strap I is intended to be
used for lifting the sash A inwards over the "fence" rail flange for the purpose of
lowering it, which may conveniently be done by grasping both straps C and 1 at
once and then allowing them to slip until the tab comes within the grasp of
the hand whereby a sufficient pull may be applied to the strap I for the purpose
of lifting the sash inwards whilst the retention of the hold on the strap Cenables
the lowering of the sash to be controlled. The auxiliary strap I may however be

page_text: replaced by a finger grip K screwed to the bottom rail of the sash A and adapted
to be seized by the one hand for the purpose of disengaging the sash from the
"fence" rail and lifting it inwards for the purpose of lowering it under the control
of the other hand applied to the strap C.
When the sash A is supported in any intermediate position by the strap C being
attached to the stud Cs, and so supporting the weight of the sash, the toggle-like
action of the bar B will also have the effect of causing the sash to bind against
the outer wall of its groove or run E and so prevent rattling of the sash.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is :-
The combination with a railway carriage or other window sash, of a flap or bar
hinged thereto and of a lifting strap so attached to the hinged flap or bar as
to tend to cause it to exert a toggle-like action whereby an outward thrust is
applied to the window sash (without the use of springs) when the weight of the
sash is supported by the strap so as to thereby force the sash outwards over the
"fence" rail when fully raised as specified.
Dated buy
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.