and other Lights.
Year: 1885

page_text: 4335
and other Lights.
I, WILLIAM LESTER of No. 11 West Regent Street, Glasgow, in the County of
Lanark, North Britain, Engineering Agent and Iron Merchant do hereby declare
the nature of the said invention for IMPROVEMENTS IN ASTRAGALS OR GLAZING
BARS FOR ROOFS, WINDOWS AND OTHER LIGHTS to be as follows:-
This Invention, which relates to Improvements in Astragals or glazing bars for
roofs, windows and other lights, has reference to that class of astragals or glazing
bars in which either a core of metal, wood or other material is used, or astragals or
glazing bars formed without a core and partly encased with lead alone or lead and
zinc or other such sufficiently flexible metal which is bent over the glass to secure
it in place upon or in such astragals or glazing bars.
The object of these improvements is not only to more effectually secure those
portions of the flexible metal which are bent over the glass but at the same time
to enclose the upper ridge of such astragals or sash bars which, as hitherto con-
structed, are left exposed and protect the same from the weather, noxious fumes,
and acids in the atmosphere.
The Invention consists of a sheath of lead, zinc or other metal or material of the
requisite shape and size which sheath, after the glass is placed in the astragals or
glazing bars and the soft metal bent over the edges of the said glass, is slid end wise
in under the edges of the said soft metal, the two sides of the sheath having portions
thereof bent inwards under it which portions enclose and hold upon the two edges
of the soft metal. In place however of holding such separate sheath upon the bent
over portions of the flexible metal, such bent over portions may be dispensed with,
in which case the upper part of the astragal or glazing bar is provided with fins,
wings or flanges upon which the sheath is slid fastening it and holding the glass in
place.
Under an alternative method, in place of enclosing the ridge of the artragals or
glazing bars by a separate sheath, such sheath may be provided for by extending
the length, of that portion of flexible metal which is bent down upon the glass,
sufficiently to enable it to be folded back again upon itself and over the ridge of
the astragals or glazing bars.

page_text: and other Lights.
I, WILLIAM LESTER of N° 11 West Regent Street, Glasgow, in the County of
Lanark, North Britain, Engineering Agent and Iron Merchant do hereby declare
the nature of my invention for IMPROVEMENTS IN ASTRAGALS OR GLAZING BARS
FOR ROOFS, WINDOWS AND OTHER LIGHTS and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
My Invention, which relates to improvements in astragals or glazing bars for
roofs, windows and other lights, has reference to that class of astragals or glazing
bars in which either a core of metal, wood or other material is used, or astragals or
glazing bars formed without a core and partly encased with lead alone or lead and
zinc or other such sufficiently flexible metal which is bent over the glass to secure
it in place upon, or in such astragals or glazing bars..
The object of these improvements is not only to more effectually secure those
portions of the flexible metal which are bent over the glass, but at the same time
to enlose the upper ridge of such astragals or sash bars which, as hitherto con-
structed, are left exposed and protect the same from the weather, noxious fumes,
and acids in the atmosphere.
The Invention consists of a sheath of lead, zinc or other metal or material of the
requisite shape and size, which sheath, after the glass is placed in the astragals or
glazing bars and the soft metal bent over the edges of the said glass, is slid end wise
in under the edges of the said soft metal, the two sides of the sheath having portions
thereof bent inwards under it, which portions enclose and hold upon the two edges
of the soft metal. In place however, of holding such separate sheath upon the bent
over portions of the flexible metal, such bent over portions may be dispensed with,
in which case the upper part of the astragal or glazing bar is provided with fins,
wings or flanges upon which the sheath is slid fastening it and holding the glass in
place.
Under an alternative method, in place of enclosing the ridge of the astragals or
glazing bars by a separate sheath, such sheath may be provided for by extending
the length, of that portion of flexible metal which is bent down upon the glass,
sufficiently to enable it to be folded back again upon itself and over the ridge of
the astragals or glazing. bars.
In order that my Invention may be properly understood and readily carried
into effect, I will now proceed to describe the drawings hereunto annexed.
Figure 1, is a plan, Figure 2, a side elevation and Figure 3 a transverse section
of a portion of one form of astragal or glazing bar constructed according to my
present Invention.
Figure 4; is a plan, Figure 5, a side elevation, and Figure 6 a transverse section
of another form of astragal or glazing bar constructed in accordance with my present
invention.

page_text: Figure 7 is a transverse section through a detached portion of the same and
Figure 8 is a transverse section through an astragal or glazing bar of construction
slightly modified to that represented at Figure 6, and all hereinafter more particularly
described.
In carrying out my present improvements, I form a sheath A of lead, zinc or
other metal or material of a shape suited to the particular form of astragal or
glazing bar to which my said improvements are applied. At Figures 1, 2 and 3 of
the annexed drawings, I have represented a portion of an astragal or glazing bar
the body or rigid structure b, of which is formed of zinc, sheet iron or its equivalent.
In this form of astragal the lead or other pliable metal c, used for securing the
edges of the sheets of glass d, (Figure 3) is held in position between the metal of
the astragal which, as shewn at e, is doubled over the said lead, while the edges at
which the said metal of the astragal is so doubled over, are those upon which the
glass d, is supported. The sheath A, as applied to this last described construction
of astragal or glazing bar, is slipped end wise into position, the doubled-over edges f,
thereof being arranged so that the edges of the pliable metal c, may readily pass
thereinto. The central portion of the sheath A is arched upwards and over the
central portion of the astragal and heads of the screws g, when for rigidity, such
screws are used for securing the astragals upon laths or stays h, that is to say,
such means as may be found necessary in roofs, windows or other lights of any
considerable extent.
The astragal or glazing bar represented at Figures 4, 5 and 6 of the annexed
drawings, is one wherein is employed a core i, of an inverted T shape. This core i,
which may be of iron or other material, is partly encased in the zinc or other metal
covering j, which, as in the foregoing example, serves to support the sheets of
glass d, and to secure in position the pliable metal c, which, at its upper edges, is
turned down upon the upper surface of the glass d. The sheath B, a detached
section of which is shewn at Figure 7, is slipped into position along the core i, of
the astragal, in a manner similar to that herein before described with reference to
the sheath A, shewn at Figures 1, 2 and 3.
At Figure 8 of the annexed drawings I have represented in transverse section, a
modified arrangement by which the closing in of the upper part of the astragal or
glazing bar may be effected by means of a sheet of lead or other pliable metal the
same as that employed for securing the glass down upon the said astragal at one
side thereof. Under this arrangement the strip c, of pliable metal at one side of
the astragal or glazing bar is secured in position and turned down upon the upper
surface of the glass d, in a manner similar to that herein before described with
reference to Figure 6. At the opposite side of the astragal, the strip k, of pliable
metal is bent down upon the upper surface of the glass d, and is extended so as to
be folded back again upon itself as indicated at m, and over the ridge of the said
astragal to the side thereof opposite to that at which it secures the glass d, in
position. The disengaged edge of the strip k, is then doubled over as shewn at n,
so as to enclose the upper edge of the strip c.
I desire it to be understood that the hereinbefore described improvements
besides being applicable to astragals, or glazing bars of the forms represented upon
the annexed drawings, are also applicable to astragals or glazing bars of various
other forms or constructions, such for example as those represented at Figures 1, 2
and 3 of the drawings annexed to the Complete Specification filed in pursuance of
Letters Patent granted to me the said William Lester and William Richard Lester
No. 13314 A.D. 1884.
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
First. The improvements in astragals or glazing bars for roofs, windows and
other lights consisting of a metal sheath or covering formed independently of the

page_text: said astragals but capable of being slipped into position longitudinally thereon all
substantially as and for the purposes hereinbefore set forth with reference to
Figures 1 to 7 of the annexed drawings.
Second. The improvements in astragals or glazing bars for roofs, windows and
other lights consisting of a sheath or covering formed of a pliable metal strip the
same as that employed for securing the glass down upon the said astragals at one
side thereof all substantially as and for the purposes herein before set forth with
reference to Figure 8 of the annexed drawings.
J. H. JOHNSON, DAY & JOHNSON,
Applicant's Agents.