Improvements in the Construction of Window Sashes.
Year: 1888

page_text: Date of Application, 8th Dec., 1888
Complete Specification Left, 6th Sept., 1889-Accepted, 12th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Window Sashes.
I, WILLIAM LINDSAY of Eversley, 73 Mount Park Road, Ealing in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object to improve the construction of window sashes
formed from iron sash bars.
In the Specification of a former Patent No. 5106 in the year 1882 was described
the making up of a window sash from iron sash bars meeting one another at right
angles and locked together where they meet by union pieces of cast metal.
In place of employing union pieces as therein described I make the vertical-bars as
well as the horizontal bars in one piece from end to end and I make one of greater
width than the other and with slots cut through it for the narrower bars to pass
through.
The bars I form of such shapes and cut the slots in such inanner that the under or
flat sides of the T heads of one set of the bars comes flush with the under or flatiside
of the heads of the other set so that the sheets of glass.may rest evenly
upon them.
To lock the bars together where they cross one another a shallow notch nay .he cut
in the edge of the stem of the smaller bar and the edge of the stem of the larger bar
where it crosses it may be hammered and made to enter into this shallow notch.
Or if the underside of the T head of the smaller bar is formed with grooves
or channels in it one on either side of the stem-the metal of the stem of the larger
bar may be hammered and made to enter these grooves. Or the bars might otherwise
be locked together where they cross.
The sides and ends of the outer frame may be of bars of the same depth as the
larger bars above mentioned.
COMPLETE SPECIFICATION.
Improvements in the Construction of Window Sashes.
I, WILLIAM LINDSAY of Eversley, 73 Mount Park Road, Ealing in the County of
Middlesex, Engineer, 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 has for its object to improve the construction of window sashes
formed from iron sash bars.
In the Specification of a former Patent No. 5106 in the year 1882 was described
the making up of a window sash from iron sash bars meeting one another at right
angles and locked together where they meet by union pieces of cast metal.
In place of employing union pieces as therein described I make the vertical bars
as well as the horizontal bars in one piece from end to end and I make one of greater
width than the other and with slots cut through it for the narrower bars to pass
through.
The bars I form of such shapes and cut the slots in such manner that the under or
flat sides of the T heads of one set of the bars comes flush with the under or flat side
of the heads of the other set so that the sheets of glass may rest evenly upon them.
In order that my invention may be fully understood and readily carried into effect
I will proceed to describe the drawings hereunto annexed.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front view drawn to a small scale of a sash frame constructed in
accordance with my invention. ` .
t
Figure 2 is a front view of one of the joints of the frame.
Figure 3 is a back view of the same.
Figure 4 is a transverse section of the wider bar.
Figure 5 is a transverse section of the narrower bar.
Figure 6 is a side view of the wider bar.
Figure 7 is a side view of the narrower bar.
Figure 8 is a sectional plan of the joint with the glass in place.
a is the hole cut through the wider bar for the narrower bar to pass. bis the glass
and the putty by which the glass is held in place.
To lock the bars together where they cross one another a shallow notch may be cut
in the edge of the stem of the smaller bar and the edge of the stem of the larger bar
where it crosses it may be hammered and made to enter into this shallow notch.
The notch in the narrower bar is marked d. This bar may if desired for greater
security be notched on both edges but this is not necessary.
The sides and ends of the outer frame may be of bars of the same depth as the
larger bars above mentioned.
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:-
A window sash substantially as described and consisting of rolled metal T headed
bars meeting at right angles and each continuous through the junction; such bars
being one wider than the other and with holes in the former for the latter to pass
through; the whole so arranged that when the bars are put together the undersides
of the T heads for in a flush surface to support the glass.
Dated this 5th day of September 1889.
WILLIAM LINDSAY.