Improvements in and relating to Window Sashes.
Year: 1894

page_text: Date of Application, 21st Feb., 1894
Complete Specification Left, 10th Nov., 1894-Accepted, 15th Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to Window Sashes.
1, JOHN MAIR, of 60 Dunlop Street, in the City and County of Glasgow,
Joiner, do hereby declare the nature of my invention to be as follows:--
This invention has reference to and comprises improvements in and relating to
window sashes, with the main object of making them wind and water tight at the
side edges.
According to one arrangement of my invention there would be used sliding bars
or fillets of the length of each sash on each side of the fixed frames of the window,
and the usual hanging cords and weights would be secured to these side bars. Each
top and bottom sash carrying the glass would be mounted to swivel on these sliding
rods by horizontal pivot joints at the centre part of their ends, the joints preferably
consisting of plain surfaced plates screwed into recesses in the side bars and sash
frames respectively and having a rivet or pin formed on or connected between these
plates. The swivelling sash frames would be further portably locked to the sliding
bars by having on each side preferably at their top part sliding bolts, spring
catches, or equivalent devices, so that when locked the sash frames can be moved
up and down with the sliding bars, and when unlocked can be swivelled and reversed
on their pivot hinges for cleaning purposes.
By my improvements the adjacent face of the side bars on which the sides of the
swivelling frames bear, are formed with a projecting rib or bead on each side,
extending respectively from the top to past the centre and from the bottom to past
the centre, and each of half the width of the bar so that one rib overlaps or passes the
other. These projecting ribs or beads are preferably formed by being checked out
of the solid wood of which the bars are made, and would be tapered or inclined at
their inner ends to receive the correspondingly shaped ends of ribs or beads formed
on the sides of the swivelling sash frames. The ribs on the sides or ends of the
swivelling sash frames would preferably be wooden strips nailed on and extend
from the top to near the upper end of the pivot plate at centre part and from the
bottom to near the lower end of said plate, on opposite edges respectively of ends
of sash and each of half the width of sash frane so that when either sash is brought
close to and locked with the sliding bars the inner tapered ends of the projecting
ribs on sash and on slide bars bear or fit into each other and a thorough weather
proof joint is thus obtained on each side of the sash frame. Sheet rubber or other
packing may be fitted at the centre pivot plate part of the sliding bars and sash
trames so as to ensure thorough tightness at these parts.
Dated the 20th February 1894.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Window Sashes.
1, JOHN MAIR, of 60 Dunlop Street, in the City and County of Glasgow, 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 and comprises improvements in and relating to
window sashes, with the main object of making them wind and water tight at the
side edges.
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
Figure 1 is a front elevation of a window and Figure 2 a corresponding transverse
sectional elevation, showing the inner frames in swivelled open position.
Figure 3 is detached plan view showing a section of the outer slide bars and the
inner swivelling frame, and
Figure 4 is a detached elevation showing the adjacent projecting rib faces, of a
slide bar and that of sliding sash frame respectively.
Figures 5 and 6 show to an enlarged scale detached face and edge view
respectively of the plates and hinge on which the window frame swivels.
Figure 7 is a front elevation, Figure 8 a plan view, and Figure 9 a side elevation
of the upper part of the slide bars and swivel frames showing a spring catch for
locking these to each other; and
Figure 10 shows side and edge views of a swivel catch for the swivelling frames
and sliding bars.
Referring to these drawings:-According to one arrangement of my invention
there are used sliding bars or fillets a of the length of each sash on each side of the
fixed frames A. of the window, and the usual banging cords and weights would be
secured to these side bars a. Each top and bottom sash & carrying the glass would
be mounted to swivel on these sliding bars a by horizontal pivot joints e at the
centre part of their ends, the joints preferably consisting of plain surfaced plates c¹
screwed into recesses in the adjacent faces of the side bars a and sash frames b
respectively, and having a rivet or pin e formed on or connected between these
plates. The swivelling sash frames b, would be further portably locked to the
sliding bars a by having on each side preferably at their top part, spring catches
preferably consisting of a kneed blade spring d screwed at d to the sliding bars a
and having a pawl head d² to clip over the plate d screwed to the top of the
swivelling frame b, so that when locked the sash frames 6 can be moved up and
down with the sliding bars a and when unlocked can be swivelled and reversed
on their pivot hinges c for cleaning purposes; while swivel catches would be
mounted on the sliding bars a to be brought into the position shown in Figure 1 to
prevent the swivelling frames & falling out, and to be swivelled back within recesses.
in fixed style to retain the slide bars a in position when the frames are being
swivelled within the apartment.
By my improvements the adjacent faces of the side bars a on which the sides of
the swivelling frames & bear, are formed with a projecting rib or bead a' a² on each
side, extending respectively as a from the top to past the centre, and as a² from
the bottom to past the centre, and each of half the width of the bar a so that one
rib a overlaps or passes the other a². These projecting ribs or beads a' a² are
preferably formed by being checked out of the solid wood of which the bars a are
made, and would be tapered or inclined at their inner ends to receive the corre-
spondingly shaped ends of ribs or beads 662 formed on the sides of the swivelling
sash frames b. The ribs on the sides or ends of the swivelling sash frames b
would preferably be formed out of the solid block or they may be wooden strips

page_text: nailed on, and extend as b¹ from the top to or near the upper end of the pivot plate c
at centre part and as 62 from the bottom to near the lower end of said plate.c!,.on
Lopposite edges respectively of ends of sash, and each of half the width of sash
frame so that when either sash b is brought close to and locked with the sliding
bars a the inner tapered ends of the projecting ribs on sash b and a' a² ou
slide bars a bear or fit into each other, as shown at e Figure 3 and a thoroughly
weather proof joint is thus obtained on each side of the sash frame.
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 :-
First. In window sashes, the forming of the sliding bars and the swivelling
frames respectively with projecting ribs or beads so as to fit or taper into each
other and form a thoroughly weatherproof joint, substantially as herein described
in reference to and shown in the accompanying drawings.
Second. In window sashes, the arrangement and combination of swivelling frames
and sliding bars with their weatherproof and locking fittings, substantially as herein
described in reference to and shown in the accompanying drawings.
Dad
ስ 1
Nah 1004
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.