IMPROVEMENTS IN THE CONSTRUCTION OF WINDOW SASHES
Year: 1882

page_text: LETTERS PATENT to William Henry Lindsay of 14 Wharf South Paddington
Basin in the county of Middlesex for an Invention of " IMPROVEMENTS IN
THE CONSTRUCTION OF WINDOW SASHES."
PROVISIONAL SPECIFICATION left by the said William Henry Lindsay at
the Office of the Commissioners of Patents on the 26th October 1882.
WILLIAM HENRY LINDSAY of 14 Wharf South Paddington Basin in the County
of Middlesex "IMPROVEMENTS IN THE CONSTRUCTION OF WINDOW SASHES."
This Invention has for its object to provide a simple means of constructing
window sashes from iron sash bars.
Iron sash bars as usually made are in cross section somewhat of a T shape that
is they are made with a central stem or rib and a ledge on either side of it for the
sheets of glass to rest against. The head also of the T shaped rib is made to a
variety of ornamental forms. In order to make up a window sash from a number
of such bars meeting one another at right angles as in ordinary window sashes, I
employ union pieces of malleable cast iron or wrought iron or other tough metal to
lock the bars together where they meet one another. These union pieces are discs
of a circular or other formn having at the back a flat face across which are two
grooves at right angles to one another each of a depth suitable for the heads of the
sash bars to lie in.
Where the bars of the sash cross one another one bar may be carried right through
without being divided at the centre of the union piece-the other bar which is to
cross it at right angles is divided and its ends are made to butt against the sides of
the first bar.
When the bars and union piece have been adjusted together the edges of the
grooves in the flat face of the union piece are haminered over the edges of the
heads of the bars and so securely lock and hold the bars together. In the same
way I form angle union pieces for the four corners of a sash to hold the two ends
Prins C21

page_text: of the outer vertical and horizontal bars of the sash where they meet together
and I also form T union pieces where intermediate bars meet one or other of the
outer bars.
If the head of the sash bar is so shaped that it has an indentation along either
side of it then in place of rivetting over the back of the cast or wrought iron
union piece to lock and hold the bars, I form the grooves in the union piece with
indentations opposite to the indentations in the heads of the bars and lock and
hold the bars by inserting pins into the opening so left between the side of the
slot in the union piece and the side of the sash bar. If these pins are first dipped
in a solution of salammoniac they quickly rust in and get securely held.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Henry Lindsay in the Great Seal Patent Office on the
26th April 1883.
"
WILLIAM HENRY LINDSAY of 14 Wharf South Paddington Basin in the County
of Middlesox "IMPROVEMENTS IN THE CONSTRUCTION OF WINDOW SASHES
This Invention has for its object to provide a simple means of constructing
window sashes from iron sash bars.
Iron sash bars as usually made are in cross section somewhat of a T shape that
is they are made with a central stein or rib and a ledge on either side of it for tho
sheets of glass to rest against. The head also of the T shaped rib is made to a
variety of ornamental forms.
In order to make up a window sash from a number of such bars meeting one
another at right angles as in ordinary window sashes, I employ union pieces of
malleable cast iron or wrought iron or other tough metal to lock the bars together
where they meet one another. These union pieces are discs of a circular or other
form having at the back a flat face across which are two grooves at right angles to
one another each of a depth suitable for the heads of the sash bars to lie in.
Where the bars of the sash cross one another, one bar may be carried right through
without being divided at the centre of the union piece-the other bar which is to
cross it at right angles is divided and its ends are made to butt against the sides of
the first bar.
When the bars and union piece have been adjusted together the edges of the
grooves in the flat face of the union piece are hammered over the edges of the
heads of the bars and so securely lock and hold the bars together. In the same
way I form angle union pieces for the four corners of a sash to hold the two ends
of the outer vertical and horizontal bars of the sash where they meet together
and I also form Tunion pieces where intermediate bars meet one or other of the
outer bars.
If the head of the sash bar is so shaped that it has an indentation along either
side of it then in place of rivetting over the back of the cast or wrought iron uuion
piece to lock and hold the bars, 1 form the grooves in the union piece with
indentations opposite to the indentations in the heads of the bars and lock and hold
the bars by inserting pins into the opening so left between the side of the slut in
the union piece and the side of the sash bar. If these pins are first dipped in a
solution of salammoniac they quickly rust in and get securely held.
In order that ny said Invention may be most fully understood and readily
carried into effect I will proceed to describe the drawings hereunto annexed.

page_text: bb are the edges of the grooves in the union piece B which are hammered over
the heads of the sash bars to hold the parts together.
Figures 6, 7, 8 and 9 show another arrangement in which pins are used to secure
the parts.
Figure 6 is an interior elevation and Figure 7 is a side elevation of a joint of a
window sash.
Figure 8 is a side elevation and Figure 9 is a back elevation of the union piece
separately.
Here the sash bar A is of a somewhat different form, there is a channel in the
head capable of receiving pins CC. The union piece is also formed with corre-
sponding recesses to receive the pins, and the parts having been put together the
pins are driven in. As before stated sal-ammoniac is employed to cause the pins to
rust in.
What I claim is :-
=
First. A window sash consisting of sash bars A and grooved union pieces B,
such parts being locked and held together by the edges of the grooves in the union
piece being hammered over the edges of the heads of the sash bars substantially as
described.
--
Second. A window sash consisting of sash bars A and grooved union pieces-B
such parts being locked and held together by pins C inserted into recesses in the
heads of the sash bars and in the union pieces substantially as described.
In witness whereof I the said William Henry Lindsay have hereunto set my
hand and scal this Twenty sixth day of April in the year of our Lord-One
thousand eight hundred and eighty three.
F TT TTAR