Improvements in and relating to Sash Windows.
Year: 1889

page_text: Date of Application, 5th Dec., 1889
Complete Specification Loft, 3rd Sept, 1900 Accepted, 11th Oct, 4000
PROVISIONAL SPECIFICATION.
Improvements in and relating to Sash Windows.
I SAMUEL GEORGE BURGESS, of 2 Burgess Place, Castle, near Northwich, Cheshire,
Bricklayer, do hereby declare the nature of my invention to be as follows:-
This invention has reference to and comprises certain improvements in fittings for
sash windows which slide up and down vertically in their window frames, applicable
for securing either the upper or the lower sash in any desired open position, whether
the sashes are carried by cords and weights in their frames or raised and lowered by
hand; and such that the upper sash may be opened a certain distance from the top
and the lower one from the bottom for ventilation without any person being able to
get in from the outside, and which improvements are more simple and convenient than
the modes and means heretofore in use for effecting the same purpose.
The nature and novelty of the improvements consist in fitting flat plates sunk flush
into the sliding frames of the window sashes on both sides somewhat like the striking
plates of doors with recesses in them formed at a few inches apart for spring catch
bolts entering, which would be fitted and sunk into the sliding face of the vertical
stiles of the sashes. These spring bolts might be formed of various constructions, one
simple form being that of a blade spring sunk into a groove in the sliding face of
each window stile with either its upper or lower end screwed to the stile, while the
other end would have the projecting bolt formed on it for entering the recesses in
the striking plates, and have sufficient depth in the mortise or groove in which the
spring catch works to allow it to spring out and into the mortise and have a light
pulling spindle attached to this end for drawing the bolt out of the catch recesses in
the striking plates. These spindles might have thumb screws, knobs or finger levers
on them for pulling the spring catch out of action and letting it into action near the
inside of the sash frame clear of the glass where sunk washers or plates would be fitted
to guide the spindles and prevent the knobs from wearing or sinking into the wood.
and convenient for the hand to throw these catches out and in. These handles and
catches would also be placed in a position in the inside of both window sashes that
they can be easily got at from the inside, but could not be reached by the hand of a
person from the outside when the window was opened only a few inches for ventilation.
In some cases these spring bolts might simply be made to reciprocate out and in their
recesses with spiral springs mounted on them in bushes sunk in the sliding stile of the
window sashes; and they might be made with rounded ends to enter round holes in
the striking plates; and when levers were used for drawing them out, they would
act by pressure instead of by a pulling action. This arrangement would he very
convenient for securing the sliding sashes of cottage windows, which are raised and
lowered by band to any desired position, the same bandles which took the catches out
of gear being made to answer for raising and lowering the window sashes, or they
could do for heavier window sashes hung by cords secured at their top ends, which
would not obstruct the action of the retaining catches, as these would be fitted in the
stiles of the sashes considerably below the part where the cords were attached, the cords
passing up and down over their rollers at the top outside over the striking recessed
plates.
Dated the 4th December 1889

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Sash Windows.
I, SAMUEL GEORGE BURGESS, of 2 Burgess Place, Castle near Northwich, Cheshire,
Bricklayer, 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, reference being had to the accompanying sheet of
drawings, and to the letters and figures marked thereon, that is to say :—
This invention has reference to and comprises certain improvements in fittings for
sash windows which slide up and down vertically in their fixed window slide guide
frames and applicable for securing either the upper or the lower sash in its closed
position, or in any desired open position, (whether the sashes are carried by cords
and weights in their frames or raised and lowered by hand) and such that the upper
sash may be opened a certain distance from the top, and the lower one from the
bottom of their fixed frame for ventilation without any person being able to get in, or
tamper with the fittings of the window, from the outside; which improvements are
more simple and convenient than the modes and means heretofore in use for effecting
the same purpose.
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 1 is a front elevation, partly in section, to a small scale as from the inside
of an ordinary construction of fixed window frame A, with lower and upper sliding
window sash frames A1, A2, as carried and balanced by their respective cords and
weights A", A; and shown as fitted with one construction and arrangement of my
improved fittings for securing the said moving sashes A' A² in different positions
in accordance with my invention.
Figure 2 shows a sectional elevation of one arrangement of my improved fittings
to a larger scale than shown in Figure 1.
Figure 3 shows a sectional plan corresponding to and as taken on the lines 1-1
and 2-2 respectively of Figure 2, through the fittings of the upper and lower
sashes A A¹, and
Figures 4 and 5 show a face view of the spring catch or bolt 6, 6¹ and the striking
plate a a¹ respectively, corresponding and at right angles to Figure 2.
Referring to these drawings:-The nature and novelty of the improvements consist
in fitting flat plates a sunk flush into the face of the fixed slide or guide frames A, A,
of the sliding window sashes A1, A2, on both sides, somewhat like the striking plates
of door locks, screwed at all to the frame A, as shown in detached face view in
Figure 5, with recesses a¹ in them formed at say three or four inches apart for the
head part of the spring catch bolts 6 entering, one of which is fitted and sunk
into the sliding face of each vertical stile of the sashes A' and A². These spring
bolts b b might be formed of various constructions, one simple form being that shown
in the drawings and detached in Figure 4 consisting of a blade spring b, sunk into a
mortise groove at A³ in the sliding face of the stile of each window sash A¹ and A³,
with either its upper or lower end screwed to the stile at 6"; while the other end
would have the projecting bolt 6' formed on it for entering the locking recesses a¹ in
the striking plate a and have sufficient depth in the mortise groove at A³, in which
the spring catch b, b', works to allow it to spring out and into the locking recesses a¹.
A light pulling spindle c is attached at its outer end by a slot or otherwise at 62 in the
blade spring for drawing the bolt 6' out of the catch recess a¹ in the striking plate a.
Each spindle c would have a finger lever d (or it might be a thumb screw or knob)
fulcrumed or fitted on its outer end c¹, for pulling this spindle c and spring catch b
out of action and letting it into action near the inside of the sash frame at A³, clear of
the glass, by the eccentric end d¹, where sunk washers or plates c¹ are fitted and screwed
to guide the spindle c and prevent the acting eccentric ends d' of the levers d, from

page_text: wearing or sinking into the wood, and convenient for the hand to turn these levers d, and
throw these catches 6 6' out and in. In Figures 1 and 2 the catch bolts 61 are shown as
held in action by the springs 6 themselves in the notches a¹ of their retaining striking
plates a, when the hand lever d is in its upright position; but in Figure 2 it is shown
dotted in at d", d², in the folded down position of taking the spring catch 6, 61, out
of action and retaining it there against the power of the blade spring b when in its
lowest position d². These handle levers d, d¹, would also be placed in such a position
in the inside of both window sashes A', A2, that they can be easily got at from the
inside, but could not be reached by the hand of a person from the outside when the
window was opened only a few inches for ventilation as shown in this position in
Figure 1. In some cases these spring bolts b, b¹, might simply be made to reciprocate
out and in their recesses A³ with spiral springs mounted on them in bushes sunk in
the sliding stiles of the window sashes A', A²; and they might be made with rounded
ends to enter round holes in the striking plates a, instead of the oblong holes shown;
and when levers are used for drawing them out, they might act by pressure instead
of by a pulling action. This arrangement would be very convenient for securing the
sliding sashes of cottage windows, which are raised and lowered by hand, to any desired
position, the same handles d which took the catches 6 6' out of gear being in this case
made to answer for raising and lowering the window sashes. Or otherwise as shown
in the drawings this arrangement of catches could do for heavier window sashes
hung by the ordinary cords secured at their top ends with counter balancing
weights A", A, which would not obstruct the action of the retaining catches b, b',
as these would be fitted in the stiles of the sashes A¹ A² considerably below the part
where the cords were attached, the cords passing up and down over their ordinary
rollers or sash pulleys at A, at the top outside over the striking recessed
plates a.
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. The construction, or arrangement and combination of the parts of sash
windows, having a series of recesses formed in the fixed slide guide frames, and spring
catches and operating levers on the sliding sashes, substantially as
and for
the purposes herein described in reference to and shown in the accompanying
drawings.
Second. In sash windows, the fitting and use of striking plates with recesses,
screwed to each side of the fixed slide frames, and having spring bolts or catches
with operating levers or handles sunk into or screwed on the sliding sashes, for putting
the locking bolts into or out of action with the recesses, substantially as and for
the purposes herein described, in reference to and shown in the accompanying
drawings.
Dated the 2nd September 1890.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.