Improvements in and relating to Window. Frames.
Year: 1894

page_text: Date of Application, 3rd Mar., 1894 -Accepted, 7th Apr., 1894 ·
COMPLETE SPECIFICATION.
Improvements in and relating to Window. Frames.
I, GEORGE SHIEL HENDERSON, of 28 Church Street, Berwick-on-Tweed,
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 has reference to a new or improved method and appliances for
locking or retaining the sash frames of windows in their vertical closed position, and
making them wind and water tight at the side edges; while they can be easily
unlocked and swivelled or reversed within the apartment for cleaning, ventilating,
or other purposes.
The windows may be of the class in which the inner glass carrying frames are
carried by outer sliding frames, or sliding bars, or they may simply swivel on fixed
side frames.
My improvements essentially consist in fitting a horizontally oscillating or moving
vertical bar or plate which shall lock the swivelling frame to the sliding sash frame
(or the fixed style as the case may be) and act as a draught excluder or wind and
water tight joint at the side edges of the window; and be easily operated to free
the swivelling frames when these are desired to be oscillated within the apartment
for cleaning or other purposes.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood I have hereunto
appended an explanatory sheet of drawings, in which the same reference letters are
used to indicate corresponding parts in all the figures where shown.
Figure is a perspective elevation of a window from the inside, showing the
swivelling glass carrying frames as reversed or opened out on horizontal centre
screws or pivots.
Figure 2 is a horizontal section through a cased frame and sliding and swivelling
sashes, showing my improved horizontally oscillating or sliding bar as in the locking
and draught excluding position in the one set of frames, and in the unlocked or
detached position in the other set of frames.
Figure 3 is an elevation of a set of sliding and swivelling sash frames broken
away, showing in dotted lines the bar in locked position.
Figures 4 and 5 show broken away sectional elevations at right angles to each
other of the sliding sash and swivelling frames with the oscillating bar in its
unlocked or inoperative position; and Figure 6 is a detached elevation of the
oscillating bar and its link connections.
Figure 7 is a detached view of the hand operated lever for operating the eccentric
link by which the sliding bar is actuated; and Figure 8 is a detached view of the
metal face plate through which said lever works.
Referring to these drawings, my improvements consist in forming a vertical
longitudinal groove D and sectional grooves D' through both the vertical sliding
and the swivelling sash frames B, C, and in securing a horizontal oscillating or
moving vertical metal bar or plate A by links A' oscillating in the grooves D' and
rivets or screws to each of the sides of the swivelling sash frames B. The centre
link or arm a.is formed with a square eye at one end, and is mounted to work
eccentrically on the correspondingly shaped part a' of the turning spindle a² of
a hand operated lever a mounted in bearings in the swivelling frames B, the
groove all of spindle a resting in the recess of face plate a.
The frames C would be connected by cords to weights C', Figure 2, so as to
slide up and down and carry the glass carrying sash frames B in a usual manner;

page_text: and the frames B would be mounted by screw nails or pivots at B₁ to swivel on
these sliding frames C. When the hand lever a³ is turned to place the bar or
plate A in locking and draught excluding position, said bar A oscillates or moves
into the position shown in the upper side of Figure 2 and in Figures 3 and 6, and
so forms a wind and water tight joint for the sashes; and when the movement of
the lever a³ is reversed the bar A oscillates or moves outwards to the position
shown at the lower side of Figure 2, and in Figures 4 and 5, so as to free the
sash frame B from the sliding sash C and enable it to be swivelled and reversed.
Instead of the bars A being mounted to oscillate by links on the swivelling.
sashes B, they may be similarly mounted in the sliding sashes C and move outwards
to lock the frame B and form a draught excluder; and this arrangement would be
equally applicable where the sashes B oscillate on fixed styles instead of sliding
sashes C.
The sash frames instead of being mounted to swivel on horizontal axes, may
swivel on vertical pivots at their centres, or on hinges at one side of their carrying
frames, in a known manner.
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
First. The method of locking the swivelling frames to the sliding frames, or the
fixed styles of windows, and forming a draught excluding or wind and water tight
joint, consisting in the arrangement and use of a horizontally oscillating or moving
bar or plate working within grooves formed in the window frames, and operated by
a hand lever or equivalent device, substantially as herein described in reference to
and by way of application shown in the accompanying drawings.
Second. In window frames, the combination of a horizontally oscillating or
moving vertical bar or plate, eccentric acting link, turning spindle and hand lever
or their equivalents, substantially as and for the purposes herein described in
reference to and shown in the accompanying drawings.
Third. The construction or general arrangement and combination of the frames
of windows with their grooves and locking and draught excluding devices,
substantially as herein described in reference to and shown in the accompanying
drawings.
Dated the 2nd March 1894.
W. R. M. THOMSON & CO.,
96, Buchanan Street, Glasgow, Agents.