Improvements applicable to Window Sashes.
Year: 1893

page_text: Date of Application, 30th Dec., 1893
Complete Specification Left, 26th Sept., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements applicable to Window Sashes.
I, THOMAS DOWNIE, of 2 Radnor Terrace in the County of the City of
Glasgow, North Britain, Engineer, do hereby declare the nature of this invention
to be as follows, that is to say :-
My said invention relates to window sashes of kinds arranged both to move
vertically in the ordinary way, and to be capable of swinging inwards for cleaning
or other purposes; and my object is to improve and simplify parts of the fittings
or furniture required with such sashes, and to render the same automatic and safe.
In carrying out my invention each sash may be arranged to turn or swing
inwards as on a hinge at one side of it, in the manner described in my Patent
Specification No. 11858 of 1892, or in any other convenient way, my present
invention being applicable to the provision at the other side of the sash for
connecting the sash to the chain or cord which suspends it and passes over a pulley
to the usual counterbalancing weight. For each sash 'I have a groove formed in
the part of the fixed window frame in contact with which the edge of the sash moves
when being raised or lowered; and I arrange to work in the groove a connecting
slide to the upper end of which the chain or cord is attached. At its lower end
the connected slide has fitted to it a swivelling piece which has a notch or slot
formed in one side of it. A pin fixed in the bottom of the sash, or in an indentation
at any convenient part of the side of the sash, engages in the notch of the
swivelling piece and when the sash is turned inwards into the frame, turns the
swivelling piece under the bottom of the sash or into the indentation in the side of
the sash. When the sash, after being placed vertically in the proper position, is
turned or swung away from the frame, its pin turns the swivelling piece partly
round, in a manner to make a part of it enter a recess or indentation in the window
frame, the pin at the same time freeing itself from the notch of the swivelling
piece. The swivelling piece thus engaging in the recess or indentation in the
window frame holds the suspending chain or cord; and when the sash is turned
back again it turns the swivelling piece back into the position in which it engages
with the sash. The connecting and disconnecting of the suspending chain or cord
is thus effected by the simple movement of the sash into the window frame or out
from it.
Dated this Twenty-ninth day of December 1893.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements applicable to Window Sashes.
I, THOMAS DOWNIE, of 2, Radnor Terrace, in the County of the City of
Glasgow, North Britain, Engineer, 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, that is to say:-
My said invention relates to window sashes of kinds arranged both to move
vertically in the ordinary way and to be capable of swinging inwards for cleaning
or other purposes; and my object is to improve and simplify parts of the fittings
or furniture required with such sashes and to reuder the same automatic and safe.

page_text: In carrying out my invention each sash may be arranged to turn or swing
inwards as on a hinge at one side of it, in the manner described in my Patent
Specification No. 11,858 of 1892, or in any other convenient way, my present
invention being applicable to the provision at the other side of the sash for
connecting the sash to the chain or cord which suspends it, and passes over a pulley
to the usual counterbalancing weight. The invention comprises a piece which
slides in a groove in the fixed window frame, is connected to the suspending cord,
and is fitted with a swivelling catch. The swivelling catch engages with the sash
when in place, but when the sash is being swung out of place, it is automatically
turned to engage with the frame in a manner to securely hold the cord and weight.
The sash, on being swung back again, disengages the swivelling piece from the
frame and engages it with itself.
And in order that my said invention and the manner of performing the same
may be properly understood, I hereunto append a sheet of explanatory drawings,
to be hereinafter referred to, and showing my improvements applicable to window
sashes.
Figure, 1, of the drawings is a horizontal section of the improved window frame
and showing one sash.
Figure, 2, is a sectional elevation of part of the window frame and one sash, the
sectioned part being as at the line Z-Z in Figure, 1.
Figure, 3, shows part of the window frame sectioned as at the line X-X in
Figure, 1.
Figure, 4, is a horizontal section of parts of the sash and window frame, drawn
to an enlarged scale.
Figure, 5, is a plan and Figure, 6, is a vertical section of one modification of the
sliding and engaging piece, drawn to an enlarged scale.
Figures, 7, and, 8, are plans of a second modification, Figure, 9, being an elevation
of the same.
Figure, 10, is an elevation of the swivelling and engaging catch, arranged to be
used without a separate sliding piece.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
Each sash, A, may be arranged to turn or swing inwards on hinges, B, at one
side of it or in any other convenient way, my present invention being applicable to
the provision at the other side of the sash for connecting the sash to the chain or
cord, C, which suspends it and passes over a pulley to the usual counterbalancing
weight (not shown). For each sash, A, I have a groove, D, formed in the part of
the fixed window frame, F, in contact with which the edge of the sash moves when
being raised or lowered; and I arrange to work in the groove, D, a connecting
slide, G, to which the chain or cord, C, is attached by passing through the upper
part of the slide and being fixed by means of a knot or otherwise in a recess
formed in it. At its upper end (as shown in Figures, 1, 2, 3, 4, 5, and 6,) or at its
lower end (as shown in Figures, 7, 8, and 9,) the slide, G, has fitted to it a
swivelling piece, H, which consists of a tubular part and a wing part, the latter
projecting horizontally and at right angles from the tubular part, and having a
notch, J, formed in it. A pin, K, fixed in a metal piece, L, indented or recessed
at any convenient part, in the side of the sash, A, engages in the notch, J, of the
swivelling piece, H, when the sash is turned inwards into the frame, F, and turns
the swivelling piece, H, into the indented metal piece in the side of the sash. Or
the pin, K, might be fixed in the bottom of the sash, A, and when the sash is
turned into the frame, F, the swivelling piece, H, is turned under the bottom of the
sash. When the sash, A, after being placed vertically in the proper position is
turned or swung away from the frame, F, the batten rod, M, having been first
removed or turned away ou hinges, its pin, K, turus the swivelling piece, H, partly
round in a manner to make the wing part of it enter a recess or indentation, N,
formed in the window frame, F, at a particular place, the pin at the same time
freeing itself from the notch of the swivelling piece. The swivelling piece, H,

page_text: thus engaging in the recess or indentation, N, in the window frame, F, holds the
suspending chain or cord, C; and when the sash, A, is turned back again it turns
the swivelling piece, H, back into the position in which it engages with the sash
and clear of the indentation, N, in the window frame, F. The connecting and
disconnecting of the suspending chain or cord, C, is thus effected by the simple
movement of the sash into the window frame, F, or out from it; and when the
sash is in its closed position in the frame it can be raised and lowered like an
ordinary sash.
In the modification shown in Figure, 10, the slide, (G,) is not employed, the
swivelling piece, H, being adapted to act alone. The cord, C, is attached to the
piece, H, which is round in horizontal section and is fitted to slide easily in
the groove, (D).
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 :-
In connection with a window sash arranged for turning or swinging inwards as
well as for moving vertically, providing the suspending cord or chain at the side
from which the sash moves with a swivelling piece which engages with the sash in
one position and with the fixed frame in another position the sash swivelling it from
one position to the other on being turned or swung inwards and vice-versâ,
substantially as herein before described.
Dated this Twenty-fifth day of September 1894.
EDMUND HUNT,
Applicant's Agent.