Improvements in or connected with Roof-glazing.
Year: 1896

page_text: Date of Application, 1st Apr., 1896
Complete Specification Left, 31st Dec., 1896-Accepted, 27th Feb., 1897
Improvements in or connected with Roof-glazing.
I, JOSEPH MELLOWES of Corporation Street in the City of Sheffield, and
28 Victoria Street, Westminster, City of London Horticultural Builder, do hereby
declare the nature of my invention to be as follows:-
My present invention relates to an improvement in or connected with the system
of glazing described in the Specification of Patent No. 8259 of 1884, granted to
myself and Frederick William Primrose, and applicable to other analogous
systems, and it refers more particularly to the arrangement of a metallic covering
and its flanges used in connection with the metallic bars, the object being to
produce a perfectly water tight and dust proof joint with the glass.
I propose to cover the iron or steel bar (which may be broadly described as an
inverted T in its cross section) with a sheath or covering of an alloy of lead and
tin or other non-corrosive metal suitable for the purpose.
This sheath is provided with longitudinal side flanges of considerable width
which I call the cover, and these are preferably corrugated or curved and bent
down at their edges to rest upon the upper face of the glass. Underneath these
are arranged another pair of side flanges of narrower width and flat, to rest closely
upon the edges of the glass under the corrugated flanges, with a space between
the two.
'Below the glass are other flat flanges upon which the glass rests, and which form
the joint upon the underside.
Hitherto the flanges which rest upon the upper face of the glass have become
warped and lost their shape through the action of the sun or by atmospheric
influences, making an imperfect joint and admitting wet and dirt.
By my present arrangement of the second flanges this defect, is avoided and a
perfect roof can be constructed impervious to rain, snow and the like without the
use of paint or putty.
The invention may be used with any kind of bar, and the sheath being in one
piece, it is exceedingly strong and capable of resisting great wind-pressure upon
either side of the glass.
Dated the 21st day of March 1896.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in or connected with Roof-glazing.
I JOSEPH MELLOWES of Corporation Street in the City of Sheffield and
28 Victoria Street Westminster, City of London Horticultural Builder do hereby
declare the nature of this invention and in what manner the same has to be
performed, to be particularly described and ascertained in and by the following
statement:-
My present invention relates to an improvement in or connected with the system

page_text: of glazing described in the Specification of Patent No. 8259 of 1884, granted to
myself in conjunction with Frederick William Primrose, and is also applicable to
other analogous systems.
It refers more particularly to the metallic covering and flanges used in connection
with the metallic bars of roof glazing, the object being to produce a perfectly
watertight and dust-proof joint with the glass.
The annexed drawing illustrates my improvement, and represents a transverse
section of a bar with the covering and flanges.
In carrying out my invention I cover the iron or steel bar A (which may be
broadly described as having a cross-sectional configuration resembling an inverted
letter T, with a sheath or covering B, of an alloy of lead and tin, or of other
non-oxidizing or non-corrosive metal which is suitable for such purpose.
The sheath B, is provided with two continuous longitudinal side flanges C, which
I term the "cover," and they are preferably corrugated or curved and are bent
down at the edge to rest closely upon the upper face of the glass D.
Underneath these flanges C, are a second pair of narrower flanges E, made flat
to lie upon the edges of the glass D, underneath the bent down flanges C, and
having a space between the two.
Below or directly underneath the glass are two other flat flanges F, upon which
and the turned up parts of the sheath the glass rests, and which form the joint upon
the underside.
Hitherto flanges made to rest upon the upper face of the glass have become
warped and have thus by the action of the sun, or by atmospheric influences
become an imperfect joint admitting both wet and dirt.
According to my present arrangement of the addition of intermediate flanges E,
protected from such action of the sun by the covering flanges C, and the air space
between them, the above described defect is avoided, and a roof can be thus
constructed impervious to rain or snow without the use of paint or putty.
The invention is applicable to and may be used with nearly any pattern of bar,
and the sheath and its flanges being of one continuous piece of metal, it is capable
of resisting very great wind pressure upon either side of the glass.
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. In roof glazing, a bar A, having a sheath B, provided with a pair of covering
flanges C, and a pair of under flanges E, both upon the upper side of the glass, as
hereinbefore described, and set forth in the annexed drawings.
2. A roof-glazing bar of any shape of cross-sectional form, having a sheath of
non-oxidizing metal, provided with an under flange F, and over flanges E, and C,
substantially as hereinbefore described and shown.
1400
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.