IMPROVEMENTS IN APPARATUS FOR RAISING AND LOWERING RAILWAY CARRIAGE AND OTHER WINDOWS "
Year: 1882

page_text: LETTERS PATENT to Richard Jeffery Iron, of Dover, in the County of Kent,
Engineer, for an invention of " IMPROVEMENTS IN APPARATUS FOR RAISING
AND LOWERING RAILWAY CARRIAGE AND OTHER WINDOWS
"
PROVISIONAL SPECIFICATION left by the said Richard Jeffery Iron at the
Office of the Commissioners of Patents on the 24th May 1882.
RICHARD JEFFERY IRON, of Dover, in the County of Kent, Engineer, "IMPROVE-
MENTS IN APPARATUS FOR RAISING AND LOWERING RAILWAY CARRIAGE AND
OTHER WINDOWS
"
+
:
My Invention relates to an improved apparatus for raising and lowering
windows in which the weight of the window is counterbalanced by a barrel or
spiral spring, conveniently placed beneath it, so that a very slight upward or
downward pressure upon the window will carry it to and leave it at any desired
point of suspension.
"
.
Assuming my apparatus to be fitted to the window of a railway carriage door I
propose to fix my barrel or spiral spring beneath the window at any convenient
part of the door frame. To the barrel or drum enclosing the spring I attach a
wire, cord or chain which I carry up to and over a pulley placed at a suitable
distance above the barrel spring and down again to a vertical bar or plate fixed to
the bottom of the window, to which I attach it in any convenient way.
The barrel spring being fixed to the door so that the barrel revolves freely upon
its axle, and the spring power being properly regulated to the weight of the
window, the action will be as follows:-
When the window is pushed down the wire, cord or chain will unwind from the
periphery of the barrel, but the action of the spring will cease directly the pressure
is relieved, while on pushing up the window the spring will wind up the cord,
re-charging itself to operate again upon a downward pressure being given to the
window.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Richard Jeffery Iron in the Great Seal Patent Office on the
21st November 1882.
RICHARD JEFFERY IRON of Dover in the County of Kent Engineer "IMPROVE-
MENTS IN APPARATUS FOR RAISING AND LOWERING RAILWAY CARRIAGE AND OTHER
WINDOWS
"
My invention relates to an improved apparatus for raising and lowering windows
in which the weight of the window is counterbalanced by a barrel or spiral spring
conveniently placed beneath it, so that a very slight upward or downward pressure
upon the window will carry it to and leave it at any desired point of suspension.
Assuming my apparatus to be fitted to the window of a Railway Carriage door,
I propose to fix my barrel or spiral 'spring beneath the window at any convenient
part of the door frame.
To the barrel or drum enclosing the spring I attach a wire, cord, or chain which
I carry up to and over a pulley placed at a suitable distance above the barrel
spring, and down again to a vertical bar or plate fixed to the bottom of the
window, to which I attach it in any convenient way.
On the accompanying Sheet of Drawing.-
Figure 1, is an elevation of a Railway Carriage Door with lining board removed
to show my improved apparatus for raising and lowering the window; the window
being partly open.
Figure 2, shows a modification of my apparatus in which a pulley is dispensed
with.
Figure 3, another modification in which the barrel spring is replaced by a fuzee.
A indicates metal box containing spring a on spindle 6-B a bracket fastening
spring to door-C pulley fixed below fence rail-D wire cord connecting spring
with vertical bar and window-E vertical bar-F lift to sash.
In the combination shown Figure 1 it will be seen that the barrel spring is
fixed so that the barrel may revolve freely upon its axle.
The spring power being properly regulated to the weight of the window the
action will be as follows:-
When the window is pushed down the wire, cord, or chain D, will unwind from
the periphery of the barrel; the barrel in revolving winding up or compressing the
spring so that it may be charged ready to assist in lifting the window; directly
the window is relieved from the downward pressure of the hand the cord will
cease to unwind and the window will remain stationary at the point it has then
reached.
When a slight upward pressure is given to the window this pressure will be
supplemented by that of the spring unwinding or expanding within the barrel;
at the same time the cord D winding on the barrel is ready to operate again upon
a downward pressure being given to the window.
I may use friction springs or any other arrangement which I may find suitable
to prevent rattling of the windows-I may also connect the cord D with the window
by attaching it to a stud or plate or otherwise, in lieu of to the vertical bar E
as shown.
I may in some cases find it desirable to shift the position of the spring as
illustrated Figure 2, and thereby dispense with the use of the pulley C; it will be
seen that in this case the cord D leads from the top instead of the bottom of the
barrel.
I may also in some cases find it desirable to compensate for any lessening
of power in the expansion of the spring and I then employ a fuzee as shown
T

page_text: Although I have illustrated my invention as applied to the window of the door
of a railway carriage-It will be evident that it is equally applicable to the raising
and lowering of the windows of Tram Cars and vehicles generally.
Having now described and ascertained the nature of my said invention and in
what manner the same is or may be performed.
I Claim as secured to me by the hereinbefore in part recited Letters Patent-
Firstly In apparatus for raising and lowering Carriage Windows; the use of a
spring within a barrel fitted at any convenient point beneath the window and in
combination with the bottom of the window by a wire, cord, or chain winding and
unwinding on the periphery of the barrel (which may be a fuzee, or of any suitable.
form) and arranged to operate substantially as hereinbefore described.
Secondly-The combination of box A (containing spring a and its spindle b)
with pulley C and vertical bar E by the cord or wire D substantially as herein-
before described and shown Figure 1 and for the purpose specified.
Thirdly: The arrangement substantially as shown, Figure 2 of the drawing in
which the spring is put into connection with the lower part of the window by
means of the wire, chain or cord D without the intervention of the pulley C, for
the purpose specified.
In witness whereof I the said Richard Jeffery Iron have hereunto set my
hand and seal this Twentieth day of November in the year of our Lord
One thousand eight hundred and eighty two: