A NEW OR IMPROVED SYSTEM OF GLAZING
Year: 1885

page_text: I JOHN JEFFREYS of 10 Great Queen Street Westminster, Heating and Horti-
cultural Engineer do hereby declare the nature of my invention for A NEW OR
IMPROVED SYSTEM OF GLAZING to be as follows:-
This invention relates to a certain new or improved system of glazing for
coverings foor roofs screens and such like the object being to render the covering
dust proof, and waterproof and to provide for carrying away water of condensation
from inside the glazing or covering.
The bar or bars to which the glazing is applied is or are made of wood
preferably Teak or Mahoghany to the necessary depth required by the span, and
rabbeted for glass on the upper side to a depth not usually exceeding the thickness
of the glass, which will be bedded in with a plastic material that does not get hard
by exposure to the weather. The edges of the glass above the rabbets are then
thinly covered with the like plastic material and a strip of roofing felt or other
suitable non-conducting material the width of the supporting bar is then laid on
and the whole is to be covered with a metal capping of substantially half hoop
form with returned feet and this metal capping is to be screwed down on to the
wood bar with metal screws at frequent intervals by which means the superfluous
mastic is expressed at the outside edges and can be stripped in the usual way.
When the glass is lapped the rabbet in the wood bar is made sufficiently deep to
take the two thicknesses of glass which come together at the point of the lap and
the metal caps are cut to each square and lapped over each other.
Provision is made for carrying off condensed water on the inside, by means of a
thin strip of bent glass or metal or other suitable material curved to substantially
ogee or Ŝ section and inserted lengthwise between the lapped edges of the glass
and said strips of bent material will lie at the ends in the rabbets of the
supporting bars.
WALTER A. BARLOW,
Agent for John Jeffreys.

page_text: JOHN JEFFREYS of 10 Great Queen Street Westminster, Heating and Horti-
cultural 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:-
11
This Invention relates to a certain new or improved system of Glazing for
coverings for roofs screens and such like, the object being to render the covering
dust proof and watertight and to provide for carrying away water of condensation
from inside the glazing or covering.
This invention is carried out as follows:-In the drawings hereunto annexed
Fig. 1, shows longitudinal section of the fitting with the glass sheets overlapping.
Fig. 2, is a cross section of fitting.
Fig. 3, is like section showing glazing bar and capping in modified construction.
The bar or bars a, to which the glazing is applied is or are made of wood, pre-
ferably teak or mahogany, to the necessary depth required by the span and
rabbeted as at b, for glass sheets a¹, on the upper side to a depth usually but little
exceeding the thickness of the glass, which will be bedded in with a plastic material
that does not get hard by exposure to the weather.
The edges of the glass a¹, above the rabbet are then thinly covered with the like
plastic material and a strip c, of roofing felt or other suitable non conducting
material, the width of the supporting bar, is then laid on and the whole is to be
covered with a metal capping d, of substantially half hoop form with returned
feet e, and this metal capping is to be screwed down onto the wood bar with metal
screws f, at frequent intervals by which means the superfluous mastic is expressed
at the outside edges and can be stripped in the usual way.
When the glass a¹, is lapped the rabbet in the wood bar is made sufficiently deep
to take in the two thicknesses of glass at the lap, as shown in Fig. 1.
The metal caps d, are cut to the length of each square of glass a¹, and lap one
over the other as shown at d, Fig. 1.
Provision is made for carrying off condensed water on the inside by means of a
thin strip of bent glass or metal g, or other suitable material curved as shown in
Fig. 1 to substantially ogee or S section and inserted lengthwise between the lapped
edges of the glass and said strips of bent material will lie at the ends in the rabbets
of the supporting bars.
It will be understood that the strip g. will be curved to a section which will
allow of the condensed water formed on the underside of the sheets of glass being
arrested and discharged between the laps of the glass on to the outside of the
lower pane.
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:-
"The new or improved system of glazing having the parts arranged and fitted
as and for the purpose herein set forth."
Dated this 24th day of August 1886
WALTER A. BARLOW,
Agent for John Jeffreys.