Improvements in Glazing Bars for Fixing Glass or other Adaptable Material. on Roofs, Skylights, or Sides of Buildings, in order to Form a Watertight Covering.
Year: 1891

page_text: Date of Application, 28th Aug., 1891
Complete Specification Left, 25th Nov., 1891-Accepted, 9th Jan.,. 1892
PROVISIONAL SPECIFICATION.
Improvements in Glazing Bars for Fixing Glass or other Adaptable
Material. on Roofs, Skylights, or Sides of Buildings, in order to
Form a Watertight Covering.
:-
I JOHN JEFFREYS 7 Little Queen Street Westminster Heating & Horti-
cultural Engineer do hereby declare the nature of this invention to be as follows:-
This invention consists of a metal sash bar of section the top flange being made
concave to form a water channel. In the centre of this channel a second Ushaped
bar of metal or other suitable material is fixed with the upper edges projecting
slightly above those of the lower bar, and forming a support for the edges of the
glass. The two bars are connected by a metal screw fixed at frequent intervals in
the length, tapped into the centre of the upper side of the lower bar, and passing.
through a clearing, hole in the bottom of the U bar which is kept from contact with
the lower bar by an elastic washer surrounding the bolt, which also serves to
equalize the pressure on the glass when screwed down. When the glass is placed
in position, the two edges are covered by a shaped capping of zinc copper or
other suitable material and made to grip the glass by tightening the screws
previously described, which pass through the capping and are furnished with a
metal nut on the outside. Where laps in the glass occur the U shaped bar is
joggled and the external capping cut to the length of each sheet of glass and'lapped
at the onds.
With this invention any water which may find its way under the capping is
conducted into the U shaped upper bar by which it is conveyed to the eaves and
discharged outside, but if from any cause the water should get past the U bar it is
caught by the enclosing channel of the lower bar and conducted to the eaves as
before. Condensed water can also be taken off by means of horizontal metal or
glass channels inserted in the laps of the glass discharging into the channel of the
lower bar.
JOHN JEFFREYS.
COMPLETE SPECIFICATION.
Improvements in Glazing Bars for Fixing Glass or other Adaptable
Material on Roofs, Skylights, or Sides of Buildings, in order to
Form a Watertight Covering.
I, JOHN JEFFREYS Horticultural & Heating Engineer, 7 Little Queen Street
Westminster, 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:-
The invention consists of a metal sash bar of T section A the top flange being
made concave to form a water channel B. In the centre of this channel a second
Ushaped bar of metal or other suitable material C is fixed with the upper edges
projecting slightly above those of the lower bar and forming a support for the
edges of the glass D. D. The two bars are connected together by a metal screw E
fixed at frequent intervals in the length tapped into the centre of the upper side of
the lower bar A and passing through a clearing hole in the bottom of the U bar C
which is kept from contact with the lower bar by an elastic washer F surrounding
the bolt which also serves to equalize the pressure on the glass when screwed
down.

page_text: shaped
When the glass is placed in position the two edges are covered by a
capping G of zinc, copper, or other suitable material made to grip the glass
by tightening the screws E previously described which pass through the capping
and are furnished with a metal nut H on the outside.
Where laps in the glass occur as at 1 on Fig. 2 on drawing the U shaped
bar is joggled as shewn at Jon Fig. 2 and the external capping cut to the
length of each sheet of glass and lapped at ends.
With this invention any water which may find its way under the capping G
is conducted into the U shaped bar C by which it is conveyed to the eaves
and discharged outside. But if from any cause water should get past the
U bar it is caught by the enclosing channels of the lower bar A and conducted
to the eaves as before.
Condensed water can also be taken off by means of horizontal metal or glass
channels inserted in the laps of the glass and discharging into the channel of
the T bar.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
(1) The combination of the two separate bars A & C to form a channelled
gash bar.
.
(2) The insertion of an elastic packing F between the two bars to equalize
the pressure and allow for expansion and contraction of the glass.
(3) The arrangement of joggling the U shaped bar when in connection with
the lower bar A which is not joggled securing an even line when seen from below.
Dated this 25th day of November 1891.
JOHN JEFFREIS