Improvements in or relating to Sliding Windows.
Year: 1894

page_text: Date of Application, 22nd Mar., 1894
Complete Specification Left, 21st Dec., 1894-Accepted, 16th Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Sliding Windows.
I, THOMAS SHURMER of 308 Manchester Road, Great Lever near Bolton in
the County of Lancaster, Joiner and Builder, do hereby declare the nature of my
said invention to be as follows:-
This invention refers to improvements in or relating to sliding windows, and is
designed to allow of the same being cleaned and glazed from the inside of a room
or building. In carrying this invention into effect the window casing is made in
the usual manner in which are mounted the ordinary sashes hung by cords and
weights. To the ordinary sashes are hinged swinging sashes containing the glass,
and which are so disposed that they open inwardly into a room or building for the
purposes before mentioned.
The opposite side of each swinging sash is provided with a dovetailed or tapered
metallic piece fitting in a corresponding slot in a plate secured to the ordinary
sash, by which the same is held firmly in position to allow of the up and down
sliding movements of the windows. The windows may be locked by the ordinary
sash fastener. To prevent the displacement of the ordinary sliding sashes when
the swinging sashes are open I provide the same with metallic plates and pins fixed
to the said sashes or in the window casing.
To maintain the position of the ordinary sliding sashes and prevent the weights
operating same when windows are open I provide the said sashes with metallic
plates, springs, and buttons; the latter operating in holes or slots disposed to
allow of the sashes being placed in any desired position.
Dated the 20th March 1894.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.
CUMIDELE DI BUIT
Improvements in or relating to Sliding Windows,
I THOMAS SHURMER of 308 Manchester Road, Great Lever, near Bolton, in
the County of Lancaster, Joiner and 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 and accompanying
drawings:-
:-
This invention refers to improvements in or relating to sliding windows, and is
designed to allow of the same being cleaned and glazed from the inside of a room
or building. In carrying this invention into effect the window casing is made in
the usual manner and I mount therein sashes hung by cords and weights. To
the sashes are hinged swinging sashes containing the glass and which are so
disposed that they open inwardly into a room or building for the purposes before
mentioned.
The opposite side of each swinging sash is provided with a dovetailed or tapered
metallic piece fitting in a corresponding slot in a plate secured to the sliding sash
by which the same is held firmly in position to allow of the up and down sliding
movements of the windows.

page_text: The windows may be locked by the ordinary sash fastener. To prevent the
displacement of the sliding sashes when the swinging sashes are open I provide
the same with metallic plates and pins fixed to the said sashes or in the window
casing. To maintain the position of the ordinary sliding sashes and prevent the
weights operating same when windows are open I provide the said sashes with
metallic plates, springs, and buttons, the latter operating in holes or slots disposed
to allow of the sashes being placed in any desired position.
In order to show the mode or manner of carrying my said invention into
practical effect I have attached hereunto a sheet of illustrative drawings to which
I will now refer.
Fig. 1 shows the lower sliding sash bars between which the lower half of the
window is carried.
Fig. 1 is a view at right angles to Fig. 1 of the sliding sash bar.
Fig. 2 shows the sliding sash bars which carry the upper window half.
Fig. 3 shows the window complete with both sashes closed.
Fig. 4 is a view similar to Fig. 3 but with the lower sash open.
Fig. 5 is a sectional plan of Fig. 4.
Figs. 6, 7, 8 and 9 are detail views.
The lower sash bars are lettered a. They are hung by cords which pass over
pullies c and have counterbalance weights d.
The upper sash bars e are hung by ropes f which pass over pullies g and have
counterbalance weights . The inner face of each sash bar has a tee groove,
faced with plates i. Headed studs project from the sides of the window frame or
case (see Figs. 5 and 6) and as the head of the stud is imprisoned by the plates i
the sash bars are maintained in position against the window frame k, although at
liberty to slide up and down.
Each sash bar has its own headed stud j and is retained in position thereby but
by sliding the sash bar until the tee slot is clear of the stud, the bar can be taken
out of the frame. The sash bars are confined in the frame k by beads and
separating slips k¹ in the ordinary manner but these beads and separating pieces
need not be disturbed even when the sash bars are removed and replaced. The
lower window sash is hinged at l¹ to one of the lower sash bars a, and the upper
window sash m is hinged at m³ to one of the upper sash bars e.
The said window
sashes 1, m are simply rectangular frames suitably glazed and opening and closing
like doors, the sliding sash bars occupying the position of the door posts. In order
to draw the window sashes and sash bars closely together when the windows are
closed, I fix a double dovetail projection o on the inner side of these sash bars to
which the window is not hinged. This is shown separately at Fig. 7 of the
drawings. A recess of a similar shape is formed in the edge of the hinged
window sash (see Fig. 4).
When the window sashes are closed the wedges and recesses draw the sash bars
and windows closely together and prevent rattling and the entrance of draughts.
When both windows are closed they may be secured together by an ordinary sash
fastener P and to hold each window sash to its free sash bar I use a sliding bolt or
latch as at 7 Fig. 4. When a window sash is open as in Figs. 4 and 5 the free
sash bar a would be lifted by the counterbalance weight were means not provided
to keep it down. Such means might consist of a spring knob r (see Fig. 8) the
spring arm being sunk in the window frame, while the knob r projects so as to
enter a hole or holes in a facing plate on the sash bar a or e. The knob is so
shaped as to yield readily backward when the sash bar is pulled up or down.
When the knob r engages with the sash bar the window may be opened without
fear of the free sash bar lifting as the knob keeps it down against the pull of the
weight.
Instead of the sash bars a e being suspended by counterbalance weights as
shown, I might suspend them so as to balance each other as shown at Fig. 9. In
such a case no retaining catch such as would be required and the sash bars
would always move in unison.

page_text: When window sashes are made in accordance with my invention they can be
opened inwards for the purposes of cleaning and repairs and the said cleaning and
repairs can be effected from the floor without either difficulty or danger.
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.
1. The improved arrangement and construction of window sashes substantially
as described and shown.
2. In the construction of window sashes the separate sash bars a and e weighted
or balanced and arranged to slide in pairs in the window frame, the said sash bars
on one side having window sashes hinged to them and on the other or free side
being formed to engage with and hold or to be easily disengaged from the other
free sides of the said hinged window sashes substantially as described and as
illustrated.
3. The combination of the hinged window sashes k l with the suspended sliding
sash bars a, e arranged and operating substantially as described and as shown in
the drawings.
4. In a hinged window sash arrangement of the indicated description the
retaining studs j fixed to the window frame and engaging with tee slots in the
sliding sash bars for the purpose of retaining the said sash bars in the window
frame ways substantially as described and as illustrated.
5. In a window sash of the indicated description and for use in conjunction with
counterbalance weights the spring catch for holding the free sash bar when the
window is opened, substantially as described and as illustrated.
Dated this 19th day of December 1894.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.