Improvements in Window Frames and Sashes.
Year: 1894

page_text: Date of Application, 15th Feb.; 1894-Accepted, 7th Apr., 1894
COMPLETE SPECIFICATION.
Improvements in Window Frames and Sashes.
We, WILLIAM SAINSBURY, of Hill Avenue, Victoria Park, Bristol, House
Decorator, and ALFRED ERNEST ALBERT BENNETT, of Saint Luke's Road,
Bedminster, Bristol, Builder, 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:—
This invention relates to window frames and sashes, and consists in so constructing
and fitting the same that the sashes are capable of being readily taken into a room
or other apartment and reversed for cleaning or other purpose. They are readily
replaced in position.
According to this invention, sash lines having at one end balance weights, as
usual, are connected at the other ends to pins or trunnions fixed in each side stile
of each sash. The trunnions are situated at or about midway between the top and
bottom of the sashes, that is to say, at their balance centre. The stop bead at one
side of the window is throughout a portion of its length hinged to the inner casing
of the window. The hinged portion, which is free to turn inwards on its hinges
extends from the bottom upwards to a height somewhat in excess of the length or
vertical depth of either sash.
That part of the parting bead which lies behind the hinged part of the stop
bead is divided vertically from the bottom upwards to a height corresponding with
the length of the hinged part of the stop bead. The outer part of the parting
bead is hinged to the inner part. The pulley stiles are rabbetted from top to
bottom, and the movable part of the parting bead folds back, when open, into the
rabbet of the stile to which it is connected. That part of the head of the frame
which is over the lower sash is recessed to a sufficient extent to allow room for the
said lower sash to be moved up clear of the upper sash when the latter is fully
down.
Referring to the accompanying drawings,
Fig. 1 represents in vertical section a window frame and sashes constructed and
fitted in accordance with this invention.
Fig. 2 is a vertical section behind one of the pulley stiles and shows the bottom
sash a being taken inwards out of the frame.
Fig. 3 is a vertical section in front of one of the pulley stiles and shows the
bottom sash a raised and the top sash a' lowered and being taken inwards out of
the frame.
The sash lines b and are connected at one end, as is usual, to balance
weights c, c'. At the other ends they are fitted with eyes d, d¹ loosely fitting fixed
trunnions e, e¹ of which there are two to each sash and situated opposite one
another at or about midway between the upper and lower rails of the sashes, that.
is to say, at the balance centre. The sashes are grooved from end to end and in
the grooves, which are shaped to receive the eyes d, d', the lines b and 6' lie when
the sashes are vertical. As is seen at Fig. 1 the stop bead is throughout a part
of its length hinged to the inside casing 9. This division is necessary at one side
only of the window and is provided to enable the stop bead to be folded back, as
shown in dotted lines in the enlarged view Fig. 4, to clear the way for the lower
sash to be taken inwards out of the window frame. A catch, lock, or other
fastening is provided to lock the bead f when closed. That part of the parting
beadh which lies behind the hinged part of the stop bead f is divided vertically
from the bottom upwards to a height corresponding with the length of the hinged
part of the stop bead . The outer part of the parting bead h is hinged to the

page_text: inner part. The divided parting bead is fitted with a suitable catch, lock, or other
fastening. The pulley stile at that side of the window at which the hinged stop
bead and hinged parting bead are situated is rabbetted as shown at Fig. 4.
The movable portion of the parting beadh folds hack, when open, into the rabbet
as shown in dotted lines at Fig. 4. The pulley stile at the opposite side of the
window is similarly rabbetted, but, as above mentioned, the stop and parting beads
are hinged only at one side of the window. The pulley stiles are rabbetted to
permit of the sashes being easily taken inwards out of the frame. The adoption of
rabbetted pulley stiles obviates the necessity of grooving to receive the parting
beads, which are screwed or otherwise fastened to the shoulders presented by the
rabbet of the stiles. Increased rigidity is thus obtained.
That part
of the head k of the frame which is above the lower sash a is recessed
from end to end throughout about one-half of its width as seen at Figs. 1, 2 and 3.
This permits of raising the bottom sash a to an extent which carries the bottom
rail thereof above the top rail of the top sash a¹. When the sashes are placed in
position in the frame they are free to be worked vertically in the same way as those
of windows as ordinarily arranged.
At Fig. 5 is shown an enlarged view of the method of connecting the sash lines
to the sashes. Passed through the eye dis the trunnion e being a screw screwed
into the sash stile. The eyed fits the trunnion e loosely. The sash line is looped
around the eye. Other forms of attachment may be adopted. When it is desired
to take the sashes out of the frames for cleaning or for other purpose, the bottom
sash a is pushed up to its full extent; the top sash a' is then drawn down to its
full extent; the beads and are then unlocked and opened. The sash a¹ is now
taken inwards out of the frame, as shown at Fig. 3, to be dealt with. If need be,
it may be reversed on its trunnions. When finished with it is returned to the
frame and pushed up to its full extent. The parting bead having been now
locked, the bottom sash a is drawn down and taken inwards out of the frame, as seen
at Fig. 2. When finished with, it is returned to the frame and the stop bead is then
locked. It is, of course, to be understood that if either sash after having been
taken out of the frame be reversed it must be again reversed to its original
position when finally put in place.
In cases where the construction of windows does not permit of the adoption of
hinges in the stop bead, the latter is made removable and attachable by clamping
screws or other suitable means.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
Windows constructed and fitted substantially as hereinbefore described and
shown in the accompanying drawings, that is to say, with reversible sashes
suspended on the usual weighted sash lines, with rabbetted or recessed pulley stiles,
a hinged stop bead such as f (or a removable stop bead), a hinged parting bead
Euch as h, a rabbetted frame head such as k; all arranged to permit both sashes to
be drawn down and taken inwards out of the frame, as set forth, for cleaning or
other purpose.
Dated this 13th day of February 1894.
NICHOLAS WATTS,
Bristol, Chartered Patent Agent.