IMPROVE- MENTS IN SECURITY STOPS OR CATCHES FOR WINDOWS AND OTHER LIKE PURPOSES
Year: 1885

page_text: I HARRY EDWARD GRESHAM, of Oak Bank, Stretford, in the County of
Lancaster, Engineer, do hereby declare the nature of said invention for "IMPROVE-
MENTS IN SECURITY STOPS OR CATCHES FOR WINDOWS AND OTHER LIKE PURPOSES,"
to be as follows:-
My invention has for its object a simple and convenient arrangement of
mechanism not liable to get out of order, or become inoperative by rust or dirt for
preventing the window to which it is applied from being further opened when left
open, beyond an extent fixed upon, and is an improvement upon screws commonly
used for the purpose which when taken out at any time are often (owing to
negligence) not replaced, and are frequently lost or mislaid, and is also an improve-
ment upon friction catches also used for the purpose which are turned into a
certain position when they are to act as a guard to prevent a partly opened
window from being further opened, but which friction catches are frequently not
turned to the position for action after the window has been opened, owing to
forgetfulness.
By my invention the window cannot be opened further than to the extent fixed
upon until the catch is moved into a certain position, and the act of shutting the
window brings the catch back again automatically into the position for preventing
the window from being opened beyond the given extent.
My invention consists of a lever or catch mounted freely on a fulcrum formed in
a box which can be inserted and secured in the sash or window frame to which it
is to be applied; this lever or catch has its weight arranged so that when the catch
end of it is pushed into the box it will remain in that position in which it will be
clear and below the face of the sash frame and the other end of the lever will
project above the face of the sash frame, so that when the sash is moved its edge
can pass the catch end of the lever but will push the other end of the lever inwards
so that its weight will then cause the lever to move (when at liberty) in the other
direction, and this brings the catch back to the position for preventing the window
from being opened beyond the extent fixed upon.
My invention may be applied to ordinary vertically sliding sashes, hinged
windows or doors or horizontally sliding windows or doors.

page_text: COMPLETE SPECIFICATION.
Improvements in Security Stops or Catches for Windows and
other like Purposes.
I HARRY EDWARD GRESHAM of Oak Bank, Stretford, in the County of
Lancaster Engineer, 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 :-
•
My invention has for its object a simple and convenient arrangement of
mechanism not liable to get out of order or become inoperative by rust or dirt for
preventing the window to which it is applied from being further opened when left
open or unfastened beyond an extent fixed upon, and is an improvement upon
screws commonly used for the purpose which when taken out at any time are
often (owing to negligence) not replaced, and are frequently lost or mislaid, and is
also an improvement upon friction catches also used for the purpose which are
turned into a certain position when they are to act as a guard to prevent a partly
opened window from being further opened, but which friction catches are
frequently not turned to the position for action after the window has been opened,
owing to forgetfulness.
By my invention the window if left unfastened cannot be opened further than
to the extent fixed upon until the catch is moved into a certain position, and the
act of shutting the window brings the catch back again automatically into the
position for preventing the window from being opened beyond the given extent.
My invention consists of a lever or catch mounted freely on a fulcrum formed
in a box or frame which can be inserted and secured in the sash or window frame
to which it is to be applied; this lever or catch has its weight arranged so that
when the catch end of it is pushed into the box it will remain in that position in
which it will be clear and below the face of the sash frame and the other end of
the lever will project above the face of the sash frame, so that when the sash is
moved its edge can pass the catch end of the lever but will push the other end of
the lever inwards so that its weight will then cause the lever to move (when at
liberty) in the other direction, and this brings the catch back to the position for
preventing the window from being opened beyond the extent fixed upon.
Fig. 1 is a front elevation of the weighted catch lever or stop and its box or
frame and fig. 2 a vertical elevation and section through the box or frame.
Fig. 3 is a front elevation of a window and fig. 4 a section of the same showing
the position in which my safety catches are applied.
One (a) may be applied to one side only of the sash or one may be applied on
each side of the sash.
a is the box or frame which has sides a¹ in which there are holes for a fulcrum
pin b rivetted at each side,-d is the safety catch or stop-It will be seen that one
end is heavier than the other-The box or frame is inserted in a hole formed.in the
face of the sash (see figs. 3 and 4) and is secured thereto by screws passing through
the holes as the front plate in which the screws are inserted being vertical. The
small end of the catch d can be pushed in by pressing with the point of the finger
in the hollow a* in the face of the frame a when the point of the small end of the

page_text: catch or stop d will rest against a projection a² (as shown in fig. 2) on the box or
frame being held in that position by the overbalancing of the upper heavy end of
the catch or stop-But if the catch d is moved from the position in which it is
shown in fig. 2 to a position where the line d¹ fig. 2 is about vertical and parallel
to the face of the frame (as it is when either the lower sash is lifted or the upper
sash is lowered by the edge of the inner face of the lower sash passing over it) the
catch or stop d will fall, when at liberty, into the position shown in dotted line
and will be held there by the preponderating heavy end of the catch in which
position the small end of the catch will project and obstract and prevent the sashes
either one or both from being opened beyond the extent fixed upon.
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
The weighted lever, catch or stop so arranged and balanced that it can be placed
and will be held by gravity in one position to allow the sash, window or door to be
opened, but which will by the act of opening the sash, window or door bring the
lever catch into a position so that it will when at liberty fall by gravity into a
position to act as a stop to prevent the sash, window or door from being opened
beyond the extent fixed upon substantially as herein before described and illustrated
by the drawings.

page_text: other like Purposes.
I HARRY EDWARD GRESHAM, of Oak Bank, Stretford, in the County of
Lancaster, Engineer, do hereby declare the nature of said invention for "IMPROVE-
MENTS IN SECURITY STOPS OR CATCHES FOR WINDOWS AND OTHER LIKE PURPOSES,"
to be as follows:-
My invention has for its object a simple and convenient arrangement of
mechanism not liable to get out of order, or hecome inoperative by rust or dirt for
preventing the window to which it is applied from being further opened when left
open, beyond an extent fixed upon, and is an improvement upon screws.commonly
used for the purpose which when taken out at any time are often (owing to
negligence) not replaced, and are frequently lost or mislaid, and is also an improve-
ment upon friction catches also used for the purpose which are turned into a
certain position when they are to act as a guard to prevent a partly opened
window from being further opened, but which friction catches are frequently not
turned to the position for action after the window has been opened, owing to
forgetfulness.
By my invention the window cannot be opened further than to the extent fixed
upon until the catch is moved into a certain position, and the act of shutting the
window brings the catch back again automatically into the position for preventing
the window from being opened beyond the given extent.
My invention consists of a lever or catch mounted freely on a fulcrum formed in
a box which can be inserted and secured in the sash or window frame to which it
is to be applied; this lever or catch has its weight arranged so that when the catch
end of it is pushed into the box it will remain in that position in which it will be
clear and below the face of the sash frame and the other end of the lever will
project above the face of the sash frame, so that when the sash is moved its edge
can pass the catch end of the lever but will push the other end of the lever inwards
so that its weight will then cause the lever to move (when at liberty) in the other
direction, and this brings the catch back to the position for preventing the window
from being opened beyond the extent fixed upon.
1
My invention may be applied to ordinary vertically sliding sashes, hinged
windows or doors or horizontally sliding windows or doors.

page_text: Improvements in Security Stops or Catches for Windows and
other like Purposes.
I HARRY EDWARD GRESHAM of Oak Bank, Stretford, in the County of
Lancaster Engineer, 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 :-
My invention has for its object a simple and convenient arrangement of
mechanism not liable to get out of order or become inoperative by rust or dirt for
preventing the window to which it is applied from being further opened when left
open or unfastened beyond an extent fixed upon, and is an improvement upon
screws commonly used for the purpose which when taken out at any time are
often (owing to negligence) not replaced, and are frequently lost or mislaid, and is
also an improvement upon friction catches also used for the purpose which are
turned into a certain position when they are to act as a guard to prevent a partly
opened window from being further opened, but which friction catches are
frequently not turned to the position for action after the window has been opened,
owing to forgetfulness.
By my invention the window if left unfastened cannot be opened further than
to the extent fixed upon until the catch is moved into a certain position, and the
act of shutting the window brings the catch back again automatically into the
position for preventing the window from being opened beyond the given extent.
My invention consists of a lever or catch mounted freely on a fulcrum formed
in a box or frame which can be inserted and secured in the sash or .window frame
to which it is to be applied; this lever or catch has its weight arranged so that
when the catch end of it is pushed into the box it will remain in that position in
which it will be clear and below the face of the sash frame and the other end of
the lever will project above the face of the sash frame, so that when the sash is
moved its edge can pass the catch end of the lever but will push the other end of
the lever inwards so that its weight will then cause the lever to move (when at
liberty) in the other direction, and this brings the catch back to the position for
preventing the window from being opened beyond the extent fixed upon.
Fig. 1 is a front elevation of the weighted catch lever or stop and its box or
frame and fig. 2 a vertical elevation and section through the box or frame.
Fig. 3 is a front elevation of a window and fig. 4 a section of the same showing
the position in which my safety catches are applied.
One (a) may be applied to one side only of the sash or one may be applied on
each side of the sash.
a is the box or frame which has sides al in which there are holes for a fulcrum
pin b rivetted at each side,-d is the safety catch or stop It will be seen that one
end is heavier than the other-The box or frame is inserted in a hole formed in the
face of the sash (see figs. 3 and 4) and is secured thereto by screws passing through
the holes as the front plate in which the screws are inserted being vertical. The
small end of the catch d can be pushed in by pressing with the point of the finger
in the hollow a* in the face of the frame a when the point of the small end of the

page_text: catch or stop d will rest against a projection a³ (as shown in fig. 2) on the box or
frame being held in that position by the overbalancing of the upper heavy end of
the catch or stop-But if the catch d is moved from the position in which it is
shown in fig. 2 to a position where the line d¹ fig. 2 is about vertical and parallel
to the face of the frame (as it is when either the lower sash is lifted or the upper
sash is lowered by the edge of the inner face of the lower sash passing over it) the
catch or stop d will fall, when at liberty, into the position shown in dotted line
and will be held there by, the. preponderating heavy end of the catch in which
position the small end of the catch will project and obstract and prevent the sashes
either one or both from being opened beyond the extent fixed upon.
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
The weighted lever, catch or stop so arranged and balanced that it can be placed
and will be held by gravity in one position to allow the sash, window or door to be
opened, but which will by the act of opening the sash, window or door bring the
lever catch into a position so that it will when at liberty fall by gravity into a
position to act as a stop to prevent the sash, window or door from being opened
beyond the extent fixed upon substantially as hereinbefore described and illustrated
by the drawings.