Improvements in Apparatus for Raising and Lowering Railway- Carriage and other. Carria Windows.
Year: 1889

page_text: Date of Application, 9th Dec., 1889
Complete Specification Left, 8th Sept, 1890-Accepted, 11th Oct.. 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Raising and Lowering Railway-
Carriage and other. Carriage Windows.
I GEORGE HENRY GREEN of 41 King Cross Street, in the Parish of Halifax, in the
County of York, Book-keeper do hereby declare the nature of this invention to be
as follows:-
The invention consists of fixing three pulleys one above the other on to the inner.
side of the inner panel of the door, the lowest is a large pulley weighted at one side
to balance the weight of the window and is fixed flat against the panel of the door,
the second pulley is much smaller and is also fixed flat against the panel, the
third pulley is also a small one but is fixed crossways at right angles to the second
pulley.
One end of a cord is fixed into the grooved edge of the large pulley, passes round
it and on to the edge of the second pulley, then over the third or top pulley, and the *:
other end of the cord is fixed to the bottom of the window. When the large pulley..
revolves it causes the cord to be wound either on or off as the case may be, and thereby
raises the window or lowers it. The pulley is actuated by a handle which passes
through an aperture on to the outer side of the inner panel of the door, this handle'
works in a slot in the large pulley, and is fitted with a spring.
On the upper edge of the aperture are teeth or niches, and, owing to the action of
the spring, when the handle is released.it rests against the teeth, and these prevent
it from slipping out of any position it may be required to be in.
Dated this Seventh day of December One thousand eight hundred and eighty-
COMPLETE SPECIFICATION.
Improvements in Apparatus for Raising and Lowering Railway-
Carriage and other Carriage Windows.
I GEORGE HENRY GREEN of 41 King Cross Street, Halifax, in the County of York,
Book-keeper, 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 :—
This invention consists in providing the lower portion of the door with a wheel
weighted at one side, a cord passes round one side of this wheel, and then over guide
pulleys forming a cord running from top to bottom of the inside of the inner panel
or lining of the door, this cord is attached to the wheel at one point, and to the
bottom of the window frame at another. The wheel is actuated by a handle which
passes through a radial slit or aperture in the door lining.
DESCRIPTION OF DRAWINGS.
Fig. 1. shows front elevation, partly in section, (with outer case or covering
removed) of a railway carriage door with my improvements applied.

page_text: is attached to the weighted side of the wheel and passes round the guide pulleys D¹
and D2 and over the pulleys E and E¹ at the top and bottom of the panel, thus
forming an endless cord; this cord is also attached to the bottom of the window
frame Fat G.
The wheel B. is actuated by a handle H which passes through and traverses a
slot H' in the outer case J of the door. The top edge of this slot H₁ is serrated or
corrugated, which when the handle H. is not operated it rests in the same, being kept
in contact by means of a spring K. and bush K' and prevents the window from
slipping or lowering thus keeping it in any position required.
When the window is required to be raised or lowered, the handle H. is moved
within the slot to any suitable position which by means of the endless cord and
weighted or eccentric pulley, adjusts the height of the window as desired, and when
the handle is released, the spring forces the same into the corrugations, and firmly
holds the same in position.
Or the handle for operating the wheel may be dispensed with, and a small bracket
attached to the window frame, in any suitable position, the window being balanced
by means of the weighted pulley, may be adjusted to any position required by means
of such bracket.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The use and employment of a balance or weighted pulley or wheel, or its equivalent,
cord and pulleys, (with or without spring and notched slot) for the purposes such as
shown and described.
Dated this Sixth day of Santambor 1800
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicant.