IMPROVEMENTS IN SASH BARS AND ASTRAGALS
Year: 1884

page_text: We, GEORGE COCKBURN WARDEN, Glass Factor, of Tynemouth in the county of
Northumberland ; and JAMES FERGUSON, Manager, of North Merchiston Avenue,
Edinburgh in the county of Midlothian, do hereby declare the nature of our said
Invention for "IMPROVEMENTS IN SASH BARS AND ASTRAGALS," to be as follows:-
This Invention relates to improvements in sash bars and astragals for windows
and roof lights.
According to our Invention, we form a composite sash bar or astragal of
improved construction by using an ordinary bar of iron, steel, or other metal of
inverted T section or of other section commonly employed in forming astragals,
and securing to the upper edge of the central web of the bar a flat strip of sheet
lead or other ductile metal, to serve as means for glazing or securing the glass to
the sash bar or astragal. This flat strip of ductile metal is secured to the upper
edge of the bar by a strip of iron or other rigid material through which screws are
passed at intervals, the screws being made to pass through the ductile metal and
into the bar; or the sheet metal strip and rigid strip may be secured by rivets,
or by similar means. Over or round the lateral wings of the metal bar we fit
strips of sheet load or other ductile metal to serve as a cushion on which the sheets
of glass rest, and these strips may be carried down into the channel or groove
which is commonly formed between the central web and the resting edges of the
lateral wings of the bar, or they may be carried along the channels and up the
sides of the web to form a cushion for the edge of the glass, or even over the ridge
or top of the web, before the flat glazing strip is secured, so that a single strip may
clothe the top and sides as well as the channels and wings of the web, or follow the
contour of the section of the web.

page_text: We, GEORGE COCKBURN WARDEN, Glass Factor, of Tynemouth, in the County of
Northumberland, and JAMES FERGUSON, Manager, of North Merchiston Avenue,
Edinburgh in the County of Midlothian, do hereby declare the nature of our said
Invention for "IMPROVEMENTS IN SASH BARS AND ASTRAGALS" 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 improvements in sash bars and astragals for windows
and rooflights.
According to our Invention we form a composite sash bar or astragal of the
improved construction illustrated in figures 1 and 2 of the accompanying drawings
by using an ordinary bar A of iron, steel, or other metal of inverted T section, or
of other section commonly employed in forming astragals, and securing to the upper
edge of the central web A¹ of the bar a flat strip B of Sheet lead or other ductile
metal, to serve as means for glazing or securing the glass to the sash bar or astragal.
This flat strip of ductile metal is secured to the upper edge of the bar A by a
strip C of iron or other rigid material through which screws D are passed at
intervals, the screws being made to pass through the ductile metal B and into thé
bar A or the sheet metal strip and rigid strip may be secured by rivets or by
similar means. Over or round the lateral wings of the metal bar A we fit strips E
of sheet lead or other ductile metal to serve as a cushion on which the sheets of
glass rest, and these strips may be carried down into the channel or groove which
is commonly formed between the central web and the resting edges of the lateral
wings of the bar, or they may be carried along the channels and up the sides of
the web A¹ to form a cushion for the edge of the glass, or even over the ridgo or
top of the web, before the flat glazing strip is secured, so that a single strip may
clothe the top and sides as well as the channels and wings of the web, or follow the
contour of the section of the web.
In lieu of fixing the strip B of ductile metal to the bar A by the rigid strip C as
shown in figure 1, the strip B may be passed over the top of the web A' and down
the sides to the surface of the glass where it is bent outward to retain the glass F,
as shown in figure 2, In this case the strip is secured in place by rivets & passing
through the web A¹.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, We declare that what
we claim is:—
The improved construction of sash bars or astragals herein described and
illustrated.