Improvements in Fittings for Sash Windows.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Fittings for Sash Windows.
I, JAMES PRESTON of 13 Nicholson Street, Greenock, Renfrewshire, Cabinet
Maker, do hereby declare the nature of my invention to be as follows:-
This invention has reference to improved fittings for being applied to sliding
sash windows to enable them to be swivelled within the apartments of buildings for
cleaning or repair purposes.
As applied in connection with the bottom sash frame, I screw a plate to the
batten rod at the position the sash frame is to be swivelled and on this plate
I mount on a pin or other fulcrum a swivelling kneed arm, which shall swivel over
clear of the sash in its normal sliding position, but when the sash frame is to be
swivelled within the apartment said arm shall be swivelled or turned to come in
line with the hole of a projecting eye plate screwed by a plate to the side of sash
frame. Two of such kneed arms and eye plates would be used one near the lower
and the other near the upper end of sash frame. Instead of the swivel arm turning
on a horizontal fulcrum pin, it may be formed of a double kneed shape and swivel
in a vertical socket formed on fixing plate.
For the top sash frame the kneed arms would have their fixing plates screwed to
parting bead, and need not require to swivel.
The knotted ends of the cords of the counterbalance weights for sash frame
would be inserted in a hole formed in recessed side of sash, and be secured by a
swivelling locking arm or plate fulcrumed on a pin at its one end, and having its
other end abutting against a recessed bead on sash. When the cord is to be
detached said arm would be swivelled clear, and the end of cord detached and
inserted through a slot or groove formed in a projecting plate screwed to fixed
frame of window.
Dated the 19th day of September 1895.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Fittings for Sash Windows.
I, JAMES PRESTON, of 13 Nicholson Street, Greenock Renfrewshire, Cabinet
Maker, do hereby declare the nature of my invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement in writing, that is to say :-
This invention has reference to improved fittings for being applied to sliding
sash windows to enable them to be swivelled within the apartments of buildings for
cleaning or repair purposes.
And in order that my said invention and the manner of performing or carrying
same into practice may be properly understood, I have hereunto appended an
explanatory sheet of drawings in which

page_text: Figure 1 is an elevation of a window as fitted with my improvements, and
Figure 2 is a sectional plan view thereof.
Figure 3 represents elevation views at right angles of my swivelling kneed arm
and Figure 4 à view of the socket or eye plate receiver for same.
Figure 5 represents a view of a cord holder and Figure 6 a view of a device for
holding cord when sash is swivelled.
Figure 7 represents a view of an alternative holder for the sash cord, and..
Figure 8 a view of a device for clutching the holder on to sash.
Figure 9 represents a view of cord holder looking at opposite surface to that
shown in Figure 7, and
Figure 10 is a view of a device for securing cord holder when the sash frame is
swivelled out.
Referring to These drawings:-
As applied in connection with the bottom sash frame A, I screw a plate a to the
batten rod or side B of fixed frame at the position the sash frame is to be swivelled
and on this plate I mount on a pin or other fulcrum a swivelling kneed arm al
which shall swivel over clear of the sash in its normal sliding position, but when
the sash frame is to be swivelled within the apartment said arm al shall be
swivelled or turned to come into contact with a projecting stop a 2 and be in line
with the hole of a projecting eye plate 61 screwed by a plate 6 to the side A 1 of
sash frame A. Two of such kneed arms and eye plates would be used one
near the lower and the other near the upper end of sash frame as shown in
Figure 1.
For the top sash frame the kneed arms would have their fixing plates screwed
to parting bead, and need not require to swivel.
The knotted ends of the cords C of the counter balance weights for sash frames
would as shown in Figures 5 and 6 be inserted in a hole c formed in recessed side
of sash, and be secured by a swivelling locking arm or plate c 1 fulcrumed on a
pin c2 at its one end, and having its other end abutting against a recessed bead on
sash. When the cord C is to be detached said arm c I would be swivelled clear,
and the end of cord C detached and inserted through a slot or groove formed in a
projecting plate c 3 screwed to fixed frame of window. By an alternative arrange-
ment as shown in Figures 7 to 10 the cord C would be secured to a plate d which
would temporarily engage by a flanged part d1 at its lower end with a kneel
plate d2 screwed to sash frame. When the sash frame A is to be swivelled
within the apartment the kneed plate d2 would automatically leave the flanged
part d of plate cord holder and the back socket part d 3 of the latter would
And vice
engage with a catch el formed on a plate e screwed to fixed frame.
versa when the sash frame is returning to its normal closed position the kneed
plate d2 would automatically detach the cord holder d from the catch el and
carry same with it.
Having now particularly described and ascertained the nature of tny said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
First. In connection with sliding sash frame windows the arrangement and use
of swivelling kneed arms to engage with eye plates for the purpose of swivelling
the sash frames substantially as herein described in reference to and shown in the
accompanying drawings.
Second. In connection with sliding sash frame windows the devices for securing
the counter balance cords substantially as herein set forth.
Dated 12th day of June 1896.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.