Improvements in Sash Window Frames and the Means of Opening and Closing the Sashes.
Year: 1889

page_text: Date of Application, 24th May, 1889-Accepted, 13th July, 1889
Improvements in Sash Window Frames and the Means of Opening
and Closing the Sashes.
I, THOMAS CAUNT of 225 Mansfield Road, Carrington in the town of Nottingham,
Joiner 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:―
My invention consists in the formation of the Sash frame and the means of opening
and closing the Sashes as hereinafter described.
According to my invention I frame the Back Lining into the Head and Sill and
make it of sufficient strength so that the outside and inside linings may be fastened
to it.
And in fixing the Pullies on the underneath side of the head and in the angle
formed by the Back lining and the Head.
Those parts commonly termed Pulley Stiles, but in my improvements I termed
them Sliding Stiles are made and intended to be moveable, and may be tongued and
grooved into the outside lining, and rebated and screwed to the inside lining; or they
may be hung with hinges to the outside or inside linings, and fastened with any con-
venient. fastener
These Sliding Stiles are grooved on the outside face to receive Sliding Strips
between which the sashes are fitted and hung with centres in the ordinary way.
At or near the top of the Sliding Stiles a Counter Head is made to fit in between
the said Sliding Stiles; the said Counter Head may be tongued and grooved into
the outside lining, or it may be hung with hinges to the outside or inside linings and
fastened with any convenient fastener.
The Sashes may be hung with Weights suspended by Cord or Chain in the ordinary
way. Or they may be made to slide up and down in the following way :-.
In each Weight Box is placed an upright screw in suitable bearings screwed to
the Back Lining, on one side to work the top sash and one on the other side to work
the bottom sash.
These screws are made to revolve by means of a pair of Mitre Wheels fixed at the
lower ends of the said screws, these wheels are acted upon by a Winch Handle.
On each screw is a nut which carries with it a socket. On one of the Sliding
Strips of each sash is fixed a Projecting Plate, which passes through a Slot in the
Sliding Stiles and enters the socket carried by the nut, this Sliding Strip carries one
side of the Sash. The other side of the Sash is carried by a Chain or Cord or any
suitable means in the following way:-The Chain or Cord is fastened to the said
socket, and then carried to the Pulley in the Weight Box, which Pulley is screwed
to the Back Lining, and passed round the same and then to the Pulley in the angle
formed with the Head and Back Lining, and on to a third Pulley screwed under-
neath the Head, and from this Pulley the Chain or Cord is carried to the Sliding
Strip, and fastened by any suitable means which carries this side of Sash.
Fig. 1 of the accompanying Drawings is a Plan of one side of the Sash Frame,
showing the improvements in the construction of the frame. E is the Back Lining,
which is framed into the Head and Sill as is shown in Fig. 4. Y is the Sill and
F the Head into which the Back Lining is framed and to which also the inside and
outside linings are fastened to the said Back Lining. G Fig. 1 is the Sliding Stile
which is tongued into the outside lining M and rebated and screwed into the inside
lining N.
Fig. 2 is a section on line A B Fig. 1 through the Head of the Frame only
showing one angle of the Frame, and showing the position of the Pullies. K is the
Pulley in the angle of the Frame formed by the Back Lining E and the Head F.

page_text: I is the Pulley screwed underneath the Head in such a position as the Chain or
Cord will pass in a perpendicular line to the Sliding Strip I Fig. 1.
Fig. 3 is a section through the Head of Sash Frame on the line CD Fig. 1
showing the Counter Head H which is in this case tongued into the outside lining M
and screwed to inside lining N which closes in the Pullies.
The means by which the sashes are made to slide up and down may be further
shown by reference to Fig. 4. which represents the whole window frame and the
sashes in the same. The top sash is represented as being partly lowered. E is the
back lining. F is the Head. X is the bottom sash. X is the top sash. U is the
screw for the top sash. U is the screw for the bottom sash. V and V₁ are the
mitre wheels. S is the socket upon which the nut is fixed, which is for the top
sash. S is the socket for the bottom sash.
W is the Chain or Cord for the top sash, which is fastened to the socket S and then
passed round the pulley R in the weight box, and over the pulley K and then over
the pulley L' then to the sliding strip I and fastened to the same at T. The other
sliding strip for the top sash is I which is connected with the socket S by the projecting
plate P which is screwed on the said sliding strip at P.
The bottom sash is worked in the same way as the top sash. That is the cord or
chain is fastened to socket S¹ and passed round pulley R¹ and then to the pulley K¹
and then carried to pulley L and then to sliding strip I" and fastened to the same
at T. The other sliding strip 11 is connected to the socket S¹ by the projecting
plate P¹ which is fastened to the sliding strip at P¹.
It is therefore manifest that as the screw revolves in the one direction or the other
it carries the socket with the nut up or down and consequently the sashes move with
the socket.
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:
1st. The Back Lining with the Head and Sill is made the foundation of the Frame
as shown in Figs. 1 and 4.
2nd. The Pullies are fixed on the underneath side of the head and in the angle
formed by the Back Lining and Head.
3rd. The sliding stiles are made moveable their whole length or in part.
4th. The Counter Head is made to fit in between the sliding stiles and this is made
to be moveable as shown in Fig. 3.
5th. The connection by the chain or cord with the socket on the one side of the
sash frame with the sliding strip on the opposite side of sash frame.
6th. Also the hanging of the Sashes with weights suspended by cords or chains
in Sash Frames constructed as has been described.
Dated this 23rd day of May 1889
THOMAS CAUNT.