Improvements in Glazing Bars and in the Method of and Means Employed for Glazing Roofs and the like.
Year: 1899

page_text: Date of Application, 13th July, 1899
2000
ou
1000
Date of Application, 13th July, 1899
Complete Specification Left, 11th Apr., 1900— Accepted, 12th May, 1900
Improvements in Glazing Bars and in the Method of and Means
Employed for Glazing Roofs and the like.
We, CHARLES DARNLEY, of Bay Hall Mill, Huddersfield, in the County of York,
Card Manufacturer, WILLIAM HENRY WALLIS, of 'Willow Lane, Huddersfield
aforesaid, Roofing Engineer, and GEORGE ROBINSON CARTMEL, of 12, Wheathouse
Road, Huddersfield aforesaid, Accountant, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in the manufacture of bars used for
supporting the panes of glass constituting the roofs of greenhouses and other
glass covered buildings, also to improvements in the glazing or fixing together
the panes of glass used, the object being to provide a light and cheap form of
glazing bar and one which whilst acting in its ordinary capacity as a supporting
bar also serves, as a ventilator and a channel whereby water of condensation is
conveyed from the underside of the roof. The improved system of glazing com-
prises the use of the bar together with a cheaply constructed leaden top glazing
easily and firmly fixed in position and combined with which are means of
withdrawing heated air and water of condensation from, and admitting fresh air
to, the interior of the building.
According to this invention the glazing bar is made from thin sheet metal,
preferably steel, rolled or pressed into U form with each edge constituting a lipped
flange so that on each side of the U is a channel or trough. In the vertical
portion of the bar are a series of holes by way of which heated and foul air can
pass to the interior of the bar and thence find its way to an outlet near the upper
end of the bar and under the flashing of the roof. On the lipped flange of the
bar the two adjacent panes of glass rest, preferably on asbestos or a fibrous packing,
and the lips form channels by which water of condensation is conveyed out of
the building. The leaden upper and outer glazing is made from a strip of lead
folded or doubled over a light metal rod or wire and such double strip of lead is
inserted endwise between the adjacent panes of glass in such a manner that the
rod or wire is inside the bar and underneath the glass the outer edges projecting
above and beyond and outside the glass, and these outer projecting edges are
turned over the outer edges of the adjacent panes; a packing of asbestos or other
fibre being preferably interposed.
Inside the roof and near to the bottom of the panes is a transverse trough or
channel communicating with the interior of the several bars so that water of con-
densation passing down the panes is collected in the trough and conveyed to the
bars whence it passes to the outside of the building by the open ends of the bars.
The ends of the bars being open the heated air from the building passes through
such bars to the outside and fresh air is drawn in through the lower ends of the
bars.
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax,
Agents for the Applicants,

page_text: Improvements in Glazing Bars and in the Method of and Means
Employed for Glazing Roofs and the like.
We, CHARLES DARNLEY, of Bay Hall Mill, Huddersfield, in the County of York,
Card Manufacturer, WILLIAM HENRY WALLIS, of Willow Lane, Huddersfield
aforesaid, Roofing Engineer, and GEORGE ROBINSON CARTMEL, of 12, Wheathouse
Road, Huddersfield aforesaid, Accountant, 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:-
This invention relates to improvements in the manufacture of bars used for
supporting the panes of glass constituting the roofs of greenhouses and other
glass covered buildings, also to improvements in the glazing or fixing together
the panes of glass used, the object being to provide a light and cheap form of
glazing bar and one which whilst acting in its ordinary capacity as a supporting
bars also serves, as a ventilator and a channel whereby water of condensation is
conveyed from the underside of the roof. The improved system of glazing com-
prises the use of the bar together with a cheaply constructed leaden top glazing
easily and firmly fixed in position and combined with which may be means for
withdrawing heated air and water of condensation from and admitting fresh air
to the interior of the building.
Such being the nature and object of our said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which:-
Fig. 1 is a sectional end view of a strip of metal rolled in the preparatory stage
of construction of the improved glazing bar.
Fig. 2 is a sectional end view of the improved glazing bar with the glass fixed
thereto, the bar in this case constituting a trough and ventilator.
Fig. 3 is a sectional end view of the improved glazing bar with the glass fixed
thereto;
in this case there is no trough or ventilator combined with the bar.
According to this invention the improved glazing bar is made from a strip
of thin sheet metal (see Fig. 1) preferably steel which is first rolled or pressed so
that it has a trough or U shaped groove 1 along or near to each edge. This strip
of metal is next folded or pressed longitudinally and centrally into U form,
and the two U shaped grooves 1, 1 are flattened or pressed and lie at right angles
to the vertical portion of the bar 3 (see Fig. 2) and constitute the ledges 1-1.
A strip of lead 4 corresponding in length to the glazing bar is doubled longi-
tudinally and the doubled edge thickened or folded over a light metal rod or
wire 5 and such doubled strip of lead 4 is inserted between the upper ends of the
Ushaped bar in such a manner that the lead covered rod or wire 5 is held between
the two vertical arms of the glazing bar about linable with the ledges 1-1 and
the edges 8, 8 of the lead strip 4 extend upwards and above the straight edge 6, 6
of the glazing bar. The two adjacent panes of glass 7, 7 rest on the ledges 1-1
and are preferably packed with asbestos in order to make a good joint. The pro-
jecting portions 8, 8 of the lead strip 4 are now folded or bent down onto the
respective panes of glass 7, 7 and pressed thereon and the "glazing" is complete.
The Ushaped portion of the glazing bar forms a trough in which water of
condensation may collect, and as the ends of the bar are open the water can
escape at the lower end or outlet and fall into a gutter or trough or otherwise be
conveyed to the fall pipe.
As the bar is open at both ends and is also perforated at various points 10, 10
in its vertical sides, heated and vitiated air can escape through the bars and under

page_text: the flashing of the roof, and fresh air can find its way into the building from the
bottom or lower ends of the bars.
By pressing or rolling the U shaped portion of the bar close together as shewn
in Fig. 3 or making it in one piece only the bar is strengthened but its use as a
ventilator or to carry off water of condensation is lost.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
(1) The improved combined glazing bar and ventilator or trough as and for
the purpose herein described and substantially as illustrated by Fig. 2 of the
annexed drawings.
(2) The improved glazing bar as and for the purpose herein described and sub-
stantially as illustrated by Fig. 3 of the annexed drawings.
(3) A glazing bar comprising the rigid metal bar having the vertical portions 3
and 6 and the ledges 1, 1 a doubled or folded strip of lead being held between
the vertical portions 6 of said bar as and for the purpose herein described and
substantially as illustrated by Figs. 2 and 3 of the annexed drawings.
Dated this 10th day of April 1900.
CHARLES DARNLEY,
WILLIAM HENRY WALLIS,
GEORGE ROBINSON CARTMEL.
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax.
CHARLES DARNLEY,
WILLIAM HENRY WALLIS,
GEORGE ROBINSON CARTMEL.
By their Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax,