An Improved System of Hinging Sliding Sash Windows, to Open Inwards, for Safety Cleaning and other purposes.
Year: 1893

page_text: Date of Application, 16th Nov., 1893
Complete Specification Left, 15th Aug., 1894-Accepted, 29th Sept., 1894
PROVISIONAL SPECIFICATION.
An Improved System of Hinging Sliding Sash Windows, to Open
Inwards, for Safety Cleaning and other purposes.
I FARQUHAR MACLEAN Joiner 36 Sciennes and I ROBERT KAY Ironmonger
54 Findhorn Place both of Edinburgh in the County of Midlothian North Britain
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved system for hinging sliding sash windows,
by a simple, novel, and inexpensive method, and consists essentially in the application
of a pair of kneed or cranked loose pin and pivot hinges for each sash stile.
Each having a separate lower and upper socket for said cranked pin and pivot to
engage in and has for its object to facilitate the opening inwards of such like
windows (as above described) for safety cleaning and other purposes, and is also
equally applicable to existing sliding sash windows at present in use thus obviating
the necessity of persons sitting or standing on the window sills and avoiding the
accidents to which they are exposed in such a dangerous position.
In carrying out this invention we provide each of the sockets forming parts of
the hinge with a back or side plate, wing, or ear, preferably made integral with
the socket and having countersunk holes for securing or fixing with ordinary screws
or by any other suitable means in position conveniently near the top and bottom
of each upper and lower sash stile, the opposite and lower corresponding sockets of
the lower sash stile are preferably secured to and through the batten rod to pulley
stile.
As regards the top sash stile the corresponding sockets (as above described) are
secured and checked flush with the pulley stile and parting bead, said sockets are
provided with a notch or slot for the kneed portion of the cranked pin, to engage
in with the same, when placed or adjusted in position to prevent turning, and so
allowing the sockets only, on the sash stiles to turn horizontily inwards on the
upper portion of the cranked loose pin forming the axis or pivot stem.
The object of forming the hinge pin in a kneed or crank shaped manner is to
obtain an off-centre to allow the socket of the one to pass the corresponding socket
of the other (when disengaged) in the vertical movement of the sashes, the said
cranked pin forming a combined loose pin and pivot, the lower portion forming the
pin proper, the other preferably the top end forming the pivot stem.
As regards the proper working of the top sash, our combined loose pin and
pivot (as herein before described) must necessarily be withdrawn from the sockets
fixed to the pulley stile and parting bead, and are preferably transferred to the
corresponding sockets on sash stile, said sockets so used form a temporary auxiliary
or subsidiary fitting to prevent said loose pin from being lost.
As regards the mode or means of opening the sashes inwards we must first remove
the batten rod from the lower sash, by detaching or disengaging two or more
countersunk thumb screws or any other suitable or well known means for fastening
or unfastening the same.
As regards the top sash, by preference the lower portion of parting bead is made
easily removable, for example by simply springing said portion of parting bead out
of the groove, in this case, the upper portion of the parting bead may be
permanently fixed.
As regards the means of access to detach or unfasten the sash cord or chain to
allow the sash to open freely inwards. Each of the sliding sashes must necessarily
be placed upon its hinges previous to detaching or unfastening said sash cord or
abain

page_text: The sash cord or chain on the pivot side of sash necessarily remains permanent
in its position, the other sash cord or chain on the inward wheeling side of sash is
made easily removable by forming a knot on the end of sash cord and inserting
said knot into a hole made in edge of sash stile or in such cases when chain is
used, a cross bar or plate is checked into sash stile and is also easily removable
and when both are detached from the sashes, their free ends are temporarily
secured to hooks provided for the purpose or any other subsidiary fittings to any
near convenient place.
Dated this 11th day of November 1893.
FARQUHAR MACLEAN.
ROBERT KAY.
COMPLETE SPECIFICATION.
An Improved System of Hinging Sliding Sash Windows, to Open
Inwards, for Safety Cleaning and other purposes.
I, FARQUHAR MACLEAN, of 36 Sciennes, Joiner, and I, ROBERT KAY, of
54 Findhorn Place, Ironmonger, both of Edinburgh in the County of Midlothian,
North Britain, 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 an improved system for hinging sliding sash windows,
by a simple, and less expensive method than hitherto. The present invention
consists essentially in the application of a pair of kneed or cranked loose pin and
pivot hinges for each sash stile. Each of the sash stiles being provided with an
upper and lower socket for said pins or pivots to engage in, said pins being
retained in corresponding sockets, and the invention has for its object to facilitate
the opening inwards of such like windows, and is equally applicable to existing
sliding sash windows, thus obviating the necessity of persons sitting or standing on
the window sills and thereby avoid accidents to which they are exposed in such
dangerous positions.
But in order that our said invention may be more readily understood and easier
carried into effect, we will describe the same with reference to the accompanying
drawings.
Figure 1 is an inside elevation of a window with the lower sash partly open.
Figure 2 is a section of same in closed position and Figures 3 and 4 are detail
views.
Referring to the said drawings we provide each of the sash stiles A, B with
upper and lower sockets D which are provided with back or side plates, wings or
ears d, preferably made integral with the sockets D and having countersunk holes
for screws for attaching purposes. The said sockets D are preferably mounted as
shown so as to form parts of the hinges, the pins or pivots C of which are retained
in corresponding sockets D¹ which are secured to lower pulley stile E and parting
band F in a similar manner to the sockets D.
The object of forming the pins or pivots C, in a kneed or cranked shape manner,
is to obtain an off-centre to allow the sockets of the sash to pass the corresponding
sockets (when disengaged) in the vertical movement of the sashes. The pins C of
the lower sash hinges are so arranged as to be capable of folding against the
batten rod G when not required so as to enable the lower sash to be opened or
shut.
The sockets D¹ of the top sash are checked flush with and secured to the pulley
stile and parting bead F and provided with notches or slots d' for the pins C to
engage with when placed in position, and so prevent the pins C from turning; the
sockets D on the sash stile A only, being allowed to turn horizontally inwards
on the upper portions of the cranked pins which form the axis or pivot stem.

page_text: In order to open the lower sash B inwards, we slightly lift up the same, turn the
pins C out from the batten rod G into the notches in the sockets D', then lower
the sash until the sockets D engage with the pins C and by so doing form hinges.
Afterwards we remove the batten rod or part of it G (Figure 4) by means of
detaching or disengaging one or more thumb screws H or any other suitable means
for fastening or unfastening the same.
When desired to open the top sash A after the lower sash has been opened
inwards, we remove by springing out or otherwise removing the lower portion F¹
(Figure 3) of the parting bead out of its groove, and so permit of the sash A being
opened inwards.
In order to permit of access being had for detaching or unfastening the cords or
chains J of the weights on the opposite side of the window from the hinges, we
form or provide the end of the cords or chains J with knots j or cross bars or
plates which would fit into cheeks or holes K made in the edge of the sash stiles
as shown. When the said cords or chains J are detached from the sashes A and B
their free or knotted ends j are temporarily engaged with or secured to hooks Lor
other subsidiary fittings for the purposes; said hooks L or fittings being secured to
any convenient part of the window frame.
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
1st. The general arrangement, construction and combination of the various parts
constituting the improved means for enabling sliding sash windows to be opened
inwards for safety cleaning and other purposes, substantially as hereinbefore
described and shown in the accompanying drawings.
2nd. In sliding sash windows, the cranked pins or pivots C and sockets D
and D forming hinges so as to permit of the sashes A and B being opened
inwards, substantially as herein before described and shown in the accompanying
drawings.
Dated this 14th day of August 1894.
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.