Improvements in Apparatus for Raising and Lowering Windows and Louvres in Railway Carriages or in Road Vehicles.
Year: 1899

page_text: Improvements in Apparatus for Raising and Lowering Windows and
Louvres in Railway Carriages or in Road Vehicles.
-
I, ROBERT HYDE, of Derbyshire House, Darnall, Sheffield, in the County of
York, Engineer, do hereby declare the nature of this invention to be as follows:
According to this invention I cause the operation of raising and lowering
and also regulating the height of window or louvre in railway carriages to be
much easier of accomplishment, by applying and using a novel combination of
folding levers and a spring or springs. In carrying out my invention I use
one spring to each set of levers, and one set of levers to a window, & one set to
a louvre which are arranged to work one behind the other in such a manner
that one frame or casting is common to both sets of apparatus, operating window
and louvre respectively.
The frame to which folding levers are jointed is provided with slots at each
end in which work the bottom ends of folding levers, which are cranked a short
distance from the end. They are jointed near the cranked part to bottom frame
and the short arms beyond the bends in each bottom lever have a hole drilled
near the end into which the spring is attached or hooked, one end of spring
being connected to a lever by shackle and adjusting screw to regulate tension
to suit different weights of windows & louvres. The frame is arranged to fit
in lower part of door or framing of carriage where little space is available.
This arrangement is a double apparatus for window and fouvre whereas Patent
No. 13882/91 is suitable for single window sash only and is not suitable for the
double apparatus here described which is so arranged that the window or glass
frame is balanced and works separately from the louvre and also that the louvre
is balanced and works separate from the window and so arranged that both work
in the door or window recess of a railway carriage one behind the other, and
operated at will in the usual way. A draught excluder or draught excluders
can be used on the top of the window lift or not.
The action of the apparatus is that the jointed levers describe part of a circle
and at the same time lengthen their leverage while the spring is being lengthened
and therefore stronger exerts nearly a uniform force throughout the travel of
the window or louvre. The top of the apparatus is secured to lower part of
window frame or louvre by a suitable lock or other device. The apparatus can
be made of any suitable material.
Dated this 17th day of August 1899
Improvements in Apparatus for Raising and Lowering Windows and
Louvres in Railway Carriages or in Road Vehicles.
ROBERT HYDE, of Derbyshire House, Darnall, Sheffield, in the County of
York, Engineer, do hereby declare the nature of this invention and in what
Price Sd 1

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement: —
According to this invention I cause the operation of raising and lowering
and also regulating the height of window or louvre in railway carriages to be
much easier of accomplishment, by applying and using a novel combination of
folding levers and a spring or springs. In carrying out my invention I use
one spring to each set of levers, and one set of levers to a window and one set to
a louvre which are arranged to work one behind the other in such a manner
that one frame or casting is common to both sets of apparatus, operating window
and louvre respectively.
The frame to which folding levers are jointed is provided with slots at each
end in which work the bottom end of folding levers, which are cranked a short
distance from the end. They are jointed near the cranked part to bottom frame
and the short arms beyond the bends in each bottom lever have a hole drilled
near the end into which the spring is attached or hooked, one end of spring
being connected to a lever by shackle and adjusting screw to regulate tension
to suit different weights of windows and louvres. The frame is arranged to fit
in lower part of door or framing of carriage where little space is available.
The arrangement is a double apparatus for window and louvre whereas Patent
No. 13882/91 is suitable for single window sash only and is not suitable for the
double apparatus here described which is so arranged that the window or glass
frame is balanced and works separately from the louvre and also that the louvre
is balanced and works separate from the window and so arranged that both work
in the door or window recess of a railway carriage one behind the other, and
operated at will in the usual way. A draught excluder or draught excluders
can be used on the top of the window lift or not.
The action of the apparatus is that the jointed levers describe part of a circle
and at the same time lengthen their leverage while the spring is being lengthened
and therefore stronger, exerts nearly an uniform force throughout the travel of
the window or louvre. The top of the apparatus is secured to lower part of
window frame or louvre by a suitable lock or other device.
In order that my said invention may be fully understood and the mode I
prefer to adopt in carrying it into practical effect I have shown on the accom-
panying sheets of explanatory drawings the invention applied-for example-
10 a railway carriage door the said drawings being marked with figures and
letters of reference corresponding with those in the following description like
reference figures indicating the same parts in all the figures.
Fig. 1&1 are front elevation of carriage door fitted with apparatus, the
inside casing being removed.
Fig. 2&2 shows apparatus when window frame and louvre are lowered.
Fig. 3 & 3 is front elevation enlarged.
Fig. 4 & 4 is end view of same.
According to my new improvement I make a casting 5 suitably arranged to
take in ends of levers 6, 7, 8, 9 which are cranked and work on pins 10, 11,
12, 13 the ends of levers have holes 29 & 30 into which the hook ends of spiral
springs 14 & 15 are fixed. The other ends are fitted with swivel hooks 16 & 17,
these connect to adjusting screws 18 & 19 which are for the purpose of regulating
the tension of springs as required and have holes drilled in enlarged part to
turn them by. The shakles 20 & 21 are riveted to lever ends at 27 & 28 and
thus completes the connection between the bottom ends of each set of levers.
Levers 6 & 9 being connected by spring 15, and levers 7 & 8 by spring 14.
It will be understood that each set can be worked separately one set for louvre
and one set for window. Both sets are jointed to the casting which is secured
by screws in bottom part of carriage door. Top ends of levers 22 & 23 are
jointed to a bar 24 which has two pins 25, these keep apparatus in position.
The centre piece 26 is secured to window frame by a small lock which is easily

page_text: detachable. Fig. 4 shows end view of apparatus or window support. The main
casting 5 with springs 14 & 15 so arranged to suit window and louvre frames.
The top levers 22 are double and the top levers 23 are single, these work between
the double ones which act as guides.
It will be noticed that the Fig. 1^, 2, 3 & 4* have two extra levers 27 & 28*
the extra levers which enable the apparatus to be made shorter to suit narrow
carriage doors and at the same time give the required travel up and down.
In all other respects the principle of each apparatus is the same. In operation,
the window or louvre is raised or lowered by little effort, the apparatus nearly
balancing them through their travel. The action which takes place when the
window or louvre is being pressed down the spring 14 or 15 is lengthened, the
leverage is also lengthened due to the altered position and so takes up the
extra tension of spring which nearly balances throughout the travel of window
or louvre.
For lock used in connection with apparatus see Patent No. 5014/95.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. The novel and peculiar combination and arrangement of two sets of lifting
mechanism side by side one set for window and one set for louvre of railway
carriages and the like, substantially in the manner hereinbefore described and
illustrated.
2. For a railway carriage or the like the arrangement of frame 5 to which the
two sets of lifting mechanism is attached substantially as herein before described
and illustrated or any equivalent modification thereof.
TL 1141
1000-