An Improved Catch for Carriage and other Windows.
Year: 1892

page_text: Date of Application, 4th Mar., 1892
Complete Specification Left, 3rd Jan., 1893-Accepted, 4th Feb., 1893
PROVISIONAL SPECIFICATION.
An Improved Catch for Carriage and other Windows.
1, FREDERICK SOMERFIELD of 87 Hill Street, Birmingham Blacksmith, do
hereby declare the nature of my said invention to be as follows:-
"
This invention relates to a more simple and effective mode of fixing in a desired
position (either in the raising or lowering) of windows known as "sliding sashes
of that kind employed more particularly to railway carriages but carriages
generally private or public, but also applicable to the windows of buildings.
By this invention the dust and draught is excluded, and the strap hitherto
employed in railway and private carriages, provided with the slots for engaging
upon the projecting peg, for retaining the sliding window in a desired position is
dispensed with. To the windows of buildings the application of this invention
ensures safety, as it prevents the entrance of any one from the outside.
My invention will be described in connection with the sliding window of a railway
carriage. The door is constructed with the grooved sides in which the window
sash slides, as hitherto, the said sash having upon its inner surface two serrated
(ratchet plates) one on each side near the edge, to the inner part of the door
centrally situated is a moveable knob, with a pin connected to a suitable plate,
upon this pin is arranged two levers, one to the right the other to the left, and of a
length sufficient to reach the ratchet plates, both levers working upon a pin or
centre about midway, the ends of said levers being formed as catches, an helical
spring is placed upon the pin with knob, at the back of levers, and by its power the
levers are forced, and the catches of same engage in the ratchet plates holding the
window in a desired position.
The window is raised by the hand by means of the usual "sash lift plate."
When pressure is applied to the knob the spring becomes compressed, the levers
move and the catches of same are released from the ratchet plates, and the window
falls by its own weight.
The catch cannot be actuated from the outside, so that in its application to
carriages and buildings the property inside is insured.
Dated 4th March 1892.
THOS. KENDRICK,
Agent.
COMPLETE SPECIFICATION.
An Improved Catch for Carriage and other Windows.
I, FREDERICK SOMERFIELD of 87 Hill Street Birmingham, do hereby declare
the nature of my said invention and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
My said invention relates to the raising or lowering, or the fixing in a desired
position of the sliding sashes forming windows of that kind used for railway
carriages, private and other carriages, and also for the windows of buildings in the
latter case as a safety by preventing ingress from the outside.
And in order that my said invention may be more clearly understood, I will now
proceed to describe the same aided by the accompanying sheet of drawing.
The same letters of reference denote the saine parts in every figure in which they
occur.
Fig. 1. is a view in elevation (inner) of a door for a railway carriage in its
entirety with sliding sash up, constructed according to my invention.

page_text: Fig. 2. is a view as Fig. 1 but part of sash removed to show the construction of
my invention.
Fig. 3. is a view in cross-section of the same taken at II Fig. 1.
Fig. 4. is a view of parts detached shewing a inodification.
a is the door provided with grooved sides in which the window sash b slides the
inner surface being provided with the serrated or ratchet plates cc d, is a moveable
knob, upon the pin e, which is provided with the plate f-upon the pin e, is arranged
the right and left levers gg, being provided with holes at the end for engaging
thereon, these levers g g work upon the pins or fulcrums and extend or reach
to the ratchet plates c, c, the end of each lever g being formed as a catch g¹ by
preference of a V form to engage with the ratchet plates cc. is the helical spring
also on the pine at the back of the levers g, the power of which forces the catches
on the ends of said levers into and engage with the ratchet plates c, c, holding the
window sash in a desired position 6 is the sash lift plate by means of which the
sash is raised by the hand.
When the sash 6 is required to be lowered pressure is applied to the knob d,
which compresses j, and the levers g g, allowing the sash b, to fall and when the
required distance is reached the pressure upon d is withdrawn and the spring j
again forces the levers g, g into the plates c, c, and thus secured.
The whole being actuated by means of the knob d and from the inside no outside
interference or entrance can be effected.
In Fig. 4 the catches are dispensed with and their equivalent the rollers g
with their surfaces to correspond with the plates c c and actuated by parts as above
set forth.
The above being my said invention, I would observe in conclusion that I do not
limit myself to the precise details but that I may alter or modify the same without
departing essentially from the principle of said invention.
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 :-
-
"In an improved catch for carriage and other windows"
1st. The construction and application of the levers gy with V shaped ends y¹ or
their equivalent the rollers g' for engaging with the plates c, the said y working
upon the fulcrums h, connected to the pin e, with spring j thereon actuated and
controlled by the knob d, substantially as herein before set forth and described.
2nd. The general combination and arrangement of parts substantially as herein-
before described in the foregoing Specification and shewn upon the accompanying
sheet of drawings.
Dated 3rd January 1802
THOS. KENDRICK,
Agent.