Improvements in and relating to Window Sash Frames.
Year: 1895

page_text: Date of Application, 29th Oct., 1895
Complete Specification Left, 29th July, 1896-Accepted, 3rd Oct.,
1896
Improvements in and relating to Window Sash Frames.
I DANIEL KEITH of Bourock, Barrhead, Renfrewshire, Joiner, do hereby
leclare the nature of my invention to be as follows:-
This invention relates to improvements upon or developements of my Patent
No. 1845993
I fit the sash frame with the kneed bracket to which the hanging cord or chain
is attached in the same or in an equivalent manner to that described in the
specification of my aforesaid patent, but the catch plate for holding the sliding
knee bracket and cord when the sash frame is swivelled within the apartment is
by these improvements considerably modified. I form a transverse horizontal slot
in the fixed frame between batten rod and parting head, and preferably also in
the latter, at the part where the top of sash frame is desired to be swivelled, and
fit a catch plate, to move in and out therefrom as desired. By this means when
the catch plate is moved entirely within the slot, the sash frame can be swivelled
up and down any desired distance past it, but when the sash frame is to be
swivelled this catch plate would be moved out to clutch and retain the detachable
cord holder. This would preferably be effected by forming the catch plate with a
part cut away at its centre for the cord to be guided in, and having a projecting
arm at its one end to extend past parting bead rib at its other end for a screw pin
to fit and turn in. An inserted U or bridge piece would be screwed within a recess
in fixed frame below batten rod opposite the catch plate, and an internal screw
threaded surface would be formed through a central crosshead or pap formed in
bridge piece for a screw threaded pin to work through. The inner end of this
thumb screw would be retained or clutched within projecting down part of catch
plate and be free to turn in a recess in it, so that by turning the thumb screw the
catch plate can be moved into or out from its recess in fixed frame. A piece
would be cut out of the batten rod and a slotted plate screwed over it over the part
where the bridge piece is located so that when the catch plate is screwed home within
recess, the head of thumb screw will also lock the batten rod in closed position,
but when the catch plate is screwed out to clutch cord holder the head of thumb
screw is left in position for the batten rod to be swivelled out.
The catch plate may be extended across the path of both sash frames and when
these are in closed position can be screwed out to enter a slit formed at the lower
end of the top sash while it will come above the cord holder of lower sash and thus
both frames will be locked in closed position.
The catch plate instead of sliding may be hinged to swivel or mounted to
oscilate within a sunk in part of fixed frame.
To prevent accidents while the lower sash frame is being swivelled within the
apartment the top sash frame is brought down to about a level with the lower sash
frame and the catch plate is screwed out to enter a slit near upper end of upper
sash frame and so lock same in this position while the lower sash is being
swivelled within the apartment.
The upper sash frame can be mounted on hinges to swivel like the lower sash or
only made to slide as desired. When the top sash frame is mounted to swivel a
horizontal feather would be formed on the sliding piece to which the counter
balance weight cord is attached and a corresponding slot or check would be formed

page_text: in the sash frame to enter the slot. When this sash frame is to be swivelled it
would be brought down so that when the aforesaid check plate is screwed out it
would bear over the top of sliding piece or enter a slit in the latter and hold same
in position until the sash frame was swivelled back again. A screw pin or
equivalent fastening would be secured at feather part to prevent sash frame sliding
out except when desired to be swivelled.
The bottom sash frame would swivel on hinges consisting of plates screwed to
front of side of sash and having segmental eyes engaging with a vertical pin.
Another plate which would swivel would engage with the pin by eyes in the
alternate spaces between those of the other plate, and have its opposite end bent
into channel or like section to engage in a groove formed in the batten rod. For
this purpose the batten rod would be formed of a recessed kneed shape for the
kneed or channel part of hinges to engage in and a metal liner may be fitted in
this recessed part either extending the whole length of batten rod or only at the
parts where the sash is to be swivelled within the apartment.
With this arrange-
ment the hinged plates will slide up and down with the sash frame, and swivel
when the sash is to be taken within the apartment the kneed part of hinge retaining
the sash by engaging with kneed part of batten rod. The top hinged plate may
extend within a recess formed behind sash, and have the end of counter balance
cord attached to it, so as to keep the latter in position when swivelling the sashes;
while a rest pin may extend from lower hinged plate to enter a hole formed in
window sole when the sash is in its down closed position and when raised to be
swivelled within apartment this pin would bear over a plate on sole and so act as
a support for sash.
The top sash frame would be similarly hinged, but in this case the centre
parting bead would be formed with a projecting bead which would enter a recess
formed in sash frame. The hinged plates would be screwed to sash frame and be
bent to pass right round the recess formed in sash, and with their kneed or gripping
end part bear up against the opposite side of parting bead.
Dated this 28th day of October 1895.
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.
Improvements in and relating to Window Sash Frames.
I, DANIEL KEITH, of Bourock, Barrhead, Renfrewshire, Joiner, 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 relates to improvements upon or developements of my Patent
No. 184593
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 a sheet
of explanatory drawings in which
Figure 1 represents a perspective elevation showing the catch plate in its folded
up position clutching the kneed bracket chain holder.
Figure 2 represents a similar view showing the catch plate in its folded down
position and
Figure 3 represents a view of the catch plate when formed to slide instead of
swivel.
Figure 4 is an elevation broken away showing the sliding and swivelling hinge
arrangement for the lower sash ; and

page_text: Figure 5 is a detached elevation of a slightly modified form of top hinge.
Referring to these drawings
I fit the sash frame A with the kneed bracket A¹ to which the hanging chain or
cord A is attached in the same or in an equivalent manner to that described in
the specification of my aforesaid patent but the catch plate B B' for holding the
sliding kneed bracket A and cord when the sash frame is swivelled within the
apartment, is by these improvements considerably modified.
As shown in Figures 1 and 2, I form the catch plate in two parts, B. B¹ hinged
together, the part B being screwed to fixed frame and the part B' being free to
move down within a slot C¹ in batten rod C. By this means when the part B¹ of
catch plate is moved down within the slot C¹ the sash frame A can be moved up
or down any desired distance past it, but when the sash frame is to be swivelled
this catch plate B¹ would be inoved out to clutch and retain the detachable cord
holder A¹. This would preferably be effected by forming the catch plate B₁ with
a part cut away at its centre for the cord A2 to be guided in, and having a
projecting arm at its one end to extend over batten rod C for a screw pin b²
to fit and turn in. An inverted U or bridge piece e would be screwed within a
recess in fixed frame below batten rod C, opposite the catch plate B', and an
internal screw threaded surface would be formed through a central crosshead or
pap c¹ formed in bridge piece e for the screw threaded pin 2 to work through.
The one end of this thumb screw 62 would be retained or clutched within projecting
down part b' of catch plate B' and be free to turn in a recess in it so that by turning
the thumb screw the catch plate B' can be moved down into or out from its
recess C in batten rod C. In the arrangement shown in Figure 3 the catch
plate B' is formed to slide out and in within a slot formed in fixed frame between
batten rod and parting bead and is moved to its out and in positions by the screw
pin 2 which is secured to an arm 63 in plate B', and works through the screwed
pap c' of bridge piece c.
As shown in Figure 4 the bottom sash frame A would swivel on hinges consisting
of plates D screwed to front of side of sash A and having segmental eyes d
engaging with a vertical pin d². Another plate D' which would swivel would
engage with the pin d² by eyes d'in the alternate spaces between those of the
other plate, and have its opposite end D2 bent into channel or like section to engage
in a groove C2 formed in the batten rod C. For this purpose the batten rod would
be formed of a recessed kneed shape C² for the kneed or channel part D² of hinges
to engage in, and a metal liner E may be fitted in this recessed part C2 either
extending the whole length of batten rod C or only at the parts where the sash
is to be swivelled within the apartment. With this arrangement the hinged
plates D D will slide up and down with the sash frame, and swivel when the
sash A is to be taken within the apartment, the kneed part D2 of hinge retaining
the sash by engaging with plate E and kneed part C2 of batten rod C. As shown
in Figure 5 the top hinged plate D¹ may extend within a recess formed behind sash
and have the end of counter balance cord A² attached to a projecting part D³ on
it, so as to keep the latter in position when swivelling the sashes; while a rest
pin d³ shown in Figure 4 may extend from lower hinged plate D to enter a hole
formed in window sole when the sash is in its down closed position, and when
raised to be swivelled within apartment this pin d³ would bear over a plate on sole
and so act as a support for sash.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
First. In connection with window sash frames, the construction and arrangement
of moveable catch plates for clutching cord holder, substantially as herein
described in reference to and shown in Figures 1 to 3 of the accompanying
drawings.

page_text: Second. In connection with window sash frames, the construction and arrange-
ment of sliding and swivelling hinges, substantially as herein described in reference
to and shown in Figures 4 and 5 of the accompanying drawings.
ost of IN 1906
W. R. M. THOMSON & Co.,
96 Buchanan Street, Glasgow, Agents.