Improvements in Glazing Structures.
Year: 1890

page_text: Date of Application, 23rd Apr., 1890
Complete Specification Left, 23rd Jan., 1991-Accepted, 28th Feb., 1891
. PROVISIONAL SPECIFICATION.
Improvements in Glazing Structures.
I, ALEXANDER DRUMMOND, of 35, Montrose Street, Glasgow, Lanarkshire,
Glass Merchant, do hereby declare the nature of this invention to be as follows:-
My invention relates to the glazing of roofs, greenhouses skylights and the like.
In carrying out my invention I, preferably, use a tee shaped astragal which is
fitted in position with the head of the tce downwards. Slid on or fitted to the head
of the tee is a single strip or piece or two pieces or strips of zinc or other suitable
metal or material upon which the glass sheets are supported. To hold the sheets in
place, strips of lead or other suitable metal or material are rivetted, screwed or
otherwise fitted to the stem or rib of the tee shaped astragal, one strip at each side,
and these strips, after the sheets have been fitted in place, are bent or turned over
so as to hold the glass securely in position. Instead of using tee shaped astragals,
anchor, spearhead or other sectioned astragals may be used and if desired the lead
or other strips may be continued downwards under the glass so as to line or cover
over the upper part of the head of the astragal.
The strips when used to line or cover the astragal may be made to form a
cushion for the glass sheets instead of using specially made zinc or other strips for
this purpose.
The astragals themselves or the zinc or other metal supports fitted to them are,
preferably, made with one two or more corrugations so as to form gutters for
carrying off moisture. The zinc or other metal supports are preferably so corrugated
as to form a double gutter on each side. When it is desired to have double gutters
in the astragals they may be rolled, if of metal, or cut, if of wood, with double
grooves or channels on each side of the central rib or stem.
The rivets used are preferably lead ones.
Instead of using lead strips as hereinbefore described, ordinary metal caps may
be used.
Dated this 22nd der of Anvil 1800
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION.
Improvements in Glazing Structures.
I, ALEXANDER DRUMMOND, of 35, Montrose Street, Glasgow, Lanarkshire,
Glass Merchant, 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 :-
My invention relates to the glazing of roofs, greenhouses, skylights and the like.
In carrying out my invention 1, preferably, use a tee shaped astragal which is
fitted in position with the head of the tee downwards. Slid on or fitted to the head
of the tee is a single strip or piece or two pieces or strips of zinc or other suitable
metal or material upon which the glass sheets are supported. To hold the sheets
in place, strips of lead or other suitable metal or material are rivetted, screwed or
otherwise fitted to the stem or rib of the "tee" shaped astragal, one strip at each
side, and these strips, after the sheets have been fitted in place, are bent or turned
over so as to hold the glass securely in position. Instead of using tee shaped
astragals, anchor, spearhead or other sectioned astragals may be used and if desired
Price 8.1 +

page_text: the lead or other strips may be continued downwards under the glass so as to line or
cover over the upper part of the head of the astragal.
The strips when used to line or cover the astragal may be made to form a
cushion for the glass sheets instead of using specially made zinc or other strips for
this purpose.
The astragals themselves or the zinc or other metal supports fitted to them are,
preferably, made with one two or more corrugations. so as to form gutters for
carrying off moisture. The zine or other metal supports are preferably so corru-
gated as to form a double gutter on each side. When it is desired to have double
gutters in the astragals they may be rolled, if of metal, or cut, if of wood, with
double grooves or channels on each side of the central rib or stem.
The rivets used are preferably lead ones.
Instead of using lead strips as hereinbefore described, ordinary metal caps may.
be used.
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings whereon my invention is shown as
adapted to different forms of astragals:
On the drawings the same reference letters wherever repeated indicate similar or
like parts.
Referring to the drawings--
Fig. 1 shows in cross section a "tee" sliaped astragala having a piece or strip of
zinc fitted on its lower head-part so as to form a gutter and at the same time
support the glass sheets c. The zinc is slipped on to the astragal. d, d' are lead
strips which are rivetted to the stem of the astragal by lead rivets e. The strips of
lead d, d' are, when the glass is being put in place, in the position shown at d and
when the glass is to be glazed the lead strips are merely bent over the top of the
glass as shown at d¹.
Fig. 2 shows in cross section an anchor shaped bar with lead strips d, d¹. In this
case the lead strips are made to line or cover the upper part of the head a¹ of the
astragal. The glass rests on the lead lining. e are rivets.
Fig. 3 shows in cross section a spear-head astragal which so made as to form
double gutters f, f'. The lead strips d; d' are also in this case used as a lining
for the bar.
Fig. 4 shows in cross section a wooden astragal having lead strips fitted to it.
The strips are tacked or nailed to the bar: by, nails gas shown. As indicated in
dotted lines the lead strips may be used as a lining to the gutters ff.
Fig. 5.shows,in cross section an anchor bar without the lead lining for the gutters
as shown at Fig. 2.
Fig. 6 shows in cross section a tee shaped astragal made with gutters f, f1 as side-
ward extensions of the head of the "tee." The lead-strips d, d¹ are bent at the.
bottom under the glass, sheets, and at the top over them so as, to serve as a cap.,
Fig. shows in cross section a tee shaped astragal having strips d, d¹ and also a
bent piece, or there may be two pieces, of zinc h. The zinc serves as a support for
the glass sheets and is so bent or corrugated as to form double gutters at each side
of the astragal. The zinc is slipped on or fitted to the astragal.
Figs. 8 and 9 show in cross section the lead strips d, das made in one piece and
bent over the rib of the astragal. In Fig. 9 the lead is bent at d² so as to form
gutters.
Fig. 10 shows a similar method of glazing to Fig. 7 saving that instead of using
a cap made of lead strips an ordinary zinc cap is used.
Instead of using lead strips any other equivalent soft metal may be employed.,
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
1. A single piece or two strips of lead or other, soft metal rivetted, by lead rivets
to the astragal and serving as a cap for the glass sheets, substantially as described.

page_text: 2. The combination with a tee shaped astragal of a corrugated metal support b
or h substantially as described.
Dated this 20th day of January 1891
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.