An Improvement connected with Sash Bars or Astragals used for Glazing Without Putty.
Year: 1894

page_text: Date of Application, 16th Apr., 1894
Complete Specification Left, 16th Jan., 1895-Accepted. 16th Mar., 1395
PROVISIONAL SPECIFICATION.
An Improvement connected with Sash Bars or Astragals used for
Glazing Without Putty.
I, JOHN ELLIS, of Blenheim House, George Street, Reading, Berks, Engineer,
do hereby declare the nature of this invention to be as follows:-
According to one method of glazing without the use of putty is by making the
sash bars or astragals of tee iron with the arms of curved formation, on the edges
of which the glass is laid, a capping of zinc being placed over the leg of the tee
iron, and down on to the glass to bold the glass in place. Now according to this
system, the glass on expanding through excessive heat, meets with a resistance by
reason of the zinc capping being rigid or unyielding, very often causing breaking
of the glass, and if the glass contracts during cold weather, it often leaves the
metal capping and becomes loose thereby rattling during windy weather.
Now the object of my invention is to obviate these disadvantages and to allow
for expansion or contraction of the glass, and to effect this object I place over the
zinc capping a clip carrying a spring which bears upon the zinc capping, a bolt
being passed through the clip, zinc capping and the leg of the tee sash bar for
holding them all together. The holes in the clip and sash bar are round, while
those in the zinc capping are of oval, or elongated form, so that should the glass
expand or contract, the zinc capping can be moved by the glass but will be always
kept in contact with the glass by the spring.
I have only illustrated my invention to one system of glazing but it may be
applied to other systems.
This real. 1
C .
11004
R. CORE GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said John Ellis.
COMPLETE SPECIFICATION.
An Improvement connected with Sash Bars or Astragals used for
Glazing Without Putty.
I, JOHN ELLIS, of Blenheim House, George Street, Reading, Berks, 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:
According to one known method of glazing without the use of putty, the sash
bars or astragals are of tee iron with the wings of curved formation, on the edges
of which the glass is laid, a capping of zinc being placed over the web or leg of
the tee iron, and down on to the glass to hold the glass in place.
In this known system, the glass on expanding through excessive heat meets with
a resistance by reason of the zinc capping being rigid or unyielding, very often
causing breaking of the glass, and if the glass contracts during cold weather, it
often leaves the metal capping and becomes loose causing a rattling noise during
windy weather.

page_text: The object of my invention is to obviate the foregoing objections and incon-
veniences by employing astragals of tee shape with the wings curved upwardly and
formed with notches at intervals along the edges into which the upper ends of
saddle plates can be hammered to locate them and fix one rigidly to the other,
said saddles resting upon and fastened to the usual purlins or joists.
As a means for compensating for expansion and contraction of the glass, I slot
the zinc capping on both sides and arrange a clip over where the slots are situated,
and I pass a bolt through the slots and through a hole in the web of the astragal
in order to secure said loop yieldingly thereto a spring being in the head-or fold of
the loop and having its free ends bearing on the capping.
-
By this means the zinc capping is kept in constant touch with the glass and
prevents rain water passing under the edge.
My invention will be clearly understood by reference to the annexed drawings.
Figure 1 is a part side and edge elevation of glass roofing fixtures.
Figure 2 a section of same.
Figure 3 elevation of saddle.
Figure 4 plan of same..
Figure 5 elevation of spring cap or thimble fastener.
Figure 6 perspective elevation of thinible for containing coiled or helical spring.
A is the purlin or other joist on which the sash bars or astragals B are arranged.
Calleable or soft metal saddle with curved or rounded up sides D which can be
hammered into notches formed at intervals in the edges of the curved arms or
webs E as a means for locating them. The saddles may be any number to suit the
length of the astragal.
Fis the roofing glass resting upon the arms E, E, and kept in contact by a zinc-
capping G, the wings G¹ of which are so curved that they touch at more than one
line of touch to prevent rain water lapping under, and in order to prevent wind
blowing under, and also to ensure the zinc remaining in touch and to follow the
expansion and contraction of the glass F, 1 make holes' at intervals along the
astragul and also in the side portions of the zinc capping, as at H, for the reception.
of bolts J, the holes in the capping being of elongated shape for play and self
adjustment under the reverse action of a bow or other spring K which is secured to
the loop L of the strap M, or to the thimble N for the purpose of exerting pressure
on the capping G.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what 1
claim is :-
1. The spring appliances or their equivalents for maintaining the touch of a
capping to glass sheets of roofs when said capping has elongated holes to admit of
play and readjustment, as described and substantially arranged as represented.
2. In or connected with glass roofings, the employment of notched astragals,
affixable saddles, adjustable relief spring capping with elongated holes for automatic
adjustment and maintaining touch with glass sheets, all as hereinbefore described
and substantially as shown in the annexed drawings.
The 16th day of January 1805
R. CORE GARDNER,
Fellow Society of Patent Agents, 166, Fleet Street, London,
Agent for the said John Ellis.