IMPROVEMENTS IN ASTRAGALS OR GLAZING BARS FOR HOLDING AND SECURING GLASS FOR ROOF-LIGHTS AND WINDOWS and in what manner the same is to be performed, to be
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, JOHN FRASER, of Wellgate Works, Arbroath, in the County of Forfar, North
Britain, Manufacturer do hereby declare the nature of my said invention for
"IMPROVEMENTS IN ASTRAGALS OR GLAZING BARS FOR HOLDING AND SECURING
GLASS FOR ROOF-LIGHTS AND WINDOWS and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement :—
"
My said Invention has for its object the constructing of astragals or glazing bars
in an improved and extremely simple and economical manner. And my Invention
consists in a new and improved mode of combining strips of thin lead with wooden
astragals or bars, the lead strips being used in a manner which is now well known
and commonly practised, for holding and closing the glass by being folded down on
the glass when placed in position. In carrying out my Invention a saw cut or
deep groove is formed along the top of the astragal or bar, and a pair of lead
strips, or one doubled strip is inserted in the groove, with the outer edges of the
lead projecting sufficiently for being folded down upon the glass. The lead is
secured in the groove by transverse nails, sprigs, or pins. A single lead strip may
be used in some cases.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and representing examples of my improved astragals or
glazing bars. The drawings are made to an enlarged scale to show the minor
details clearly.
Figure. 1. is a transverse section of a simple modification of the improved astragal
which consists of a bar, 5, of wood having formed along the middle of its top a deep
narrow groove for the reception of a pair of strips, 6, of thin sheet lead. After
being inserted the load strips, 6, are fixed by nails, 7, driven in transversely at
suitable intervals along the bar. In figure. 1. the lead strips, 6, are shown as they
are before the glass is placed in position. Figure, 2, is a section of the same forin
of astragal as that shown in figure, 1, but with the glass, 8, in position and the
lead strips, 6, turned down upon it.
The wooden astragal or bar, 5, may be made of various forms or sections, and if
desired it may have grooves or gutters, 9, formed along its sides as shown in
D

page_text: figure. 3, for leading off moisture or water; or such grooves or gutters, 9, may be
formed so as to be covered by the glass as shown in figure, 4, or as shown in
figure, 5. Figure, 5, also shows a mode of using a single lead strip for securing the
adjacent edges of two pieces of glass. This single lead strip is cut from its top
edge down to the level of the top of the glass at intervals and the parts between
the cuts are bended down upon the glass alternately to opposite sides.
Having thus particularly described the nature of my said Invention and in what
manner the same is to be performed I proceed to ascertain the distinctive feature
of novelty thereof by declaring that what I claim' is :
The fixing of lead strips to astragals or glazing bars by inserting them in grooves
formed in the tops of the bars and by driving nails, or the like transversely into
the bars and through the lead strips substantially as and for the purposes
hereinbefore described.