Improved Method of Making Double-hung Sash-windows Open Inwards like a Door.
Year: 1889

page_text: Date of Application, 1st Nov., 1889
Complete Specification Left, 30th July, 1890-Accepted, 27th Sept., 1890
IKOVIDIONAL SPECIFICATION.
Improved Method of Making Double-hung Sash-windows Open
Inwards like a Door.
I ROBERT AITKEN, 33 Ann Street City, Glasgow in the County of Lanark, Clerk
of Works and House Factor do hereby declare the nature of this invention to be as
follows:
.
For an improved method of making double hung sash windows open inwards like a
door.
J
The accompanying sheet of drawings.
Fig. 1 represents an elevation of window from the inside. Fig. 2 shews a similar
view of window with the under sash opened for the purpose of cleaning, painting or
repairing. Fig. 3 is a horizontal section through lower sash of window.
There are two additional styles A and B. One on each side which slide up and
down along with sash and which are attached to the sash proper on the one side by
means of hinges C. C. and on the other side by means of the attaching and
detaching screw shewn in Figs. 4. 5. 6, being screwed into socket D that is fitted
into sash.
'
In pulley style of case there are two screwed sockets D².
At top of style A there is fixed a small plate E with an aperture, there is also
another plate fixed to face of batten rod at same place.
When the sash is wanted to open inwards, raise it just sufficient to allow the
bottom rail of sash to clear the sill of case, insert the pin through aperture in plate E
at top of style A which will hold the style A in position, remove the
covering
plates F. F. and turn the screw G which will detach itself from the sash and attach
itself to the socket in the case D' thereby securing the sash weight and freeing the
style B from the sash and allowing the sash to open on its hinges inwards like a door.
The upper sash can be treated in exactly the same manner..
The screw G enters the one socket before it leaves the other thereby preventing the
possibility of the weight slipping away.
1.
COMPLETE SPECIFICATION..
Improved Method of Making Double-hung Sash-windows Open
Inwards like a Door.
I, ROBERT AITKEN 33 Ann Street, City, Glasgow in the County of Lanark Clerk
of Works and House Factor 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::
:-
The accompanying sheet of drawings.
Fig. 1 represents an, elevation of window from the inside.
Fig.
2 shows a similar view of window, with the sashes open for the purpose of
cleaning &c.
Fig: 3 is ground plan of window.
Fig. 4 is front elevation of attaching and detaching screw.
There are two additional styles A & B one on each side which slide up and down
along with sash. One is attached to sash by means of hinges C. C. and the
other by the attaching and detaching screws being screwed into sockets D that are
fitted into sash..
The hanging cord is secured to these styles in the usual way.

page_text: In pulley style of case there are 2 screw sockets D³.
At H at bottom end of style A there are two small kneed keepers one fixed to case,
the other to sash which prevent bottom end of style A leaving its position when
open.
At top of style A there is fixed a small plate E with an aperture. There is also
another plate fixed to face of batten rod at same place for receiving a pin.
The batten rod against style B is hinged between the sill of case and F to allow
of the screws G G being turned with the hand.
When the sash is wanted to open inwards, raise just sufficient to allow the bottom
rail of sash to clear sill of case, insert the pin through aperture in plate E at top of
style A which will hold the style A in position. Open the hinged part batten rod,
turn the screws G G which will detach the style B (to which is attached the hanging
cord) from the sash and attach it to the sockets D' in the case thereby securing the
sash weight and freeing the style B from the sash and allowing the sash to open on
its hinges inwards like a door.
The upper sash can be treated in a similar manner the difference is instead of the
wheel on screw G projecting it is all inside and the centre of the screw is squared out
to receive end of loose key X which is inserted through a socket in style of sash as
shewn per drawing, also instead of the plates E and the small kneed keepers at bottom
end of style A before mentioned for the lower sash there are two small plates with
eyes fixed to case Y and two studs with pins fixed to sash Z one at top and one at
bottom of hinged style which enter the one into the other when the sash is down in
position to be opened and hold the hinged style securely so that the sash can open on
its hinges like a door.
The screw G enters the one socket D2 before it leaves the other socket D thereby
preventing the possibility of the weight slipping away.
The sash weight can be attached or detached and the lower sash made to open like
a door without the additional styles on sash as follows.
There is fixed to the top of one side of lower sash a strap 3" on each tail having
a swivel eye P. Fig. 6.
On case under batten rod at same place there is a plato R with a stud eye Fig. 7.
At botton end of same style there is a plate with a pin end fixed to sash and a
small plate is fixed to sill of case Fig. 8 with an aperture for receiving a pin.
On style on opposite side tho attaching and detaching screw is arranged as shewn
in Fig. 9 the end of cord or chain is secured to screw by means of a plate which has
a tapered tube eye at top and Fig. 10, the screw passes through lower end of plate, a
groove is turned out of the screw of an inch deep and this forms shoulder and
allows the screw to revolve and attach the cord or chain to which the weight is hung,
either to the sash or case as desired.
To open the sash inwards like a door, raise it sufficient to clear sill of case, insert
the pin through plate R, that is fixed to case and swivel eye P then unscrow with the
key, the attaching and detaching screw G, open the lower half of batten rod, which
is already hinged the height of lower sash and the sash will be free to open inwards
like a door.
In this way no side styles are required and it is suitable for the ordinary hung sash
window without having to alter the sash in any way whatever.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is.
1st. That a felt want is supplied in adapting it so that the ordinary double hung
sash window can be easily opened inwards like a door. Thereby doing away with the
necessity for going outside the window for the purpose of either cleaning or painting
the sash which hitherto has been a fruitful source of fatal accidents as well as of
anxiety on the part of house wives who live in high houses.
2nd. This arrangement is so simple that any ordinary girl can work it and can
clean the outside of window standing on the floor of room.

page_text: 3rd. Another advantage is that whereas in the case of an oriel window a difficulty
is often experienced to get all the sashes hung, because of there not being room for
ali the weights in the mullion of the case because of the contracted space at angles.
By fitting one pair of pivot hinges on sides on centre sash and the styles on each side
having the attaching and detaching screws. By unscrewing the attaching and
detaching screws and pushing the bottom of sash outwards it can be turned outside
in quite easily, and does away with the two weights thereby relieving the congestion
of weights at the contracted angle and allows the other sashes to slide up and down
quite freely.
4th. The wheel or stud on the screw serves the purpose of a jam nut and screws
the styles quite close and hard together thereby making the joint perfectly weather-
tight.
ROBERT AITKEN,
Applicant.