Improvements in Composite Metal Sash Bars and Frames for Glazing and other like Purposes, and in the Mode of Manufacturing them.
Year: 1889

page_text: Date of Application, 25th June, 1889
Complete Specification Left, 28th June, 1889-Accepted, 17th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Composite Metal Sash Bars and Frames for Glazing
and other like Purposes, and in the Mode of Manufacturing
them.
I JOHN PRESTON of Upper Dieconson Street Wigan in the County of Lancaster,
Builder and Contractor, do hereby declare the nature of this invention to he as
follows:-
For improvements in composite metal sash bars for glazing and other like purposes
and in the mode of manufacturing them.
My invention relates chiefly to the improvement in composite metal sash bars and
framing used in glazing, and in the mode of fixing the same, and in the manufacture
thereof, and consists primarily of an iron or steel core of any suitable section required
for strength and of a lead casing for same formed with wings or flashings on it all in
one piece and so intimately and closely laid on the core as practically to form one
solid composite bar. The inner core being for strength and the outer covering being
for the purpose of protecting the inner core from oxidation, and the bottom middle
or carrying flange being for carrying the glass, and so formed as to receive the
moisture, and the wings or flashings for covering the joints. The outer casing can be
made separately of suitable section, the iron or steel core can be introduced into the
casing and the lead rolled down onto the core by means of suitable rollers, the girth
of the outer casing being made a little less than the girth of the core for closing
and to allow for the flow of the lead in cold rolling, or they can be drawn down
in a die.
Or by a modification of the ordinary pipe press and its connections by my addition
of a receptical for the core bars and of a guide for the core, which also prevents the
flow of the metal into the core receptical. And the core being led by a drawing arm
through the die in the press as the lead is forced through the die it is laid on the core
and the sash bar is formed at one operation.
To facilitate fixing the bars are drilled and plates fixed as lugs at the top so as to be
easily fixed by unskilled labour and the foot forms a shoe or support readily attached
to the framing and carried by it, or is carried by notching the weathering strip by
means of pins in the foot of the bars.
בד
رسم
1.
LL 1000
JOHN PRESTON.
COMPLETE SPECIFICATION.
Improvements in Composite Metal Sash Bars and Frames for Glazing
and other like Purposes, and in the Mode of Manufacturing
them.
I, JOHN PRESTON of Upper Dieconson Street Wigan in the County of Lancaster,
Builder and Contractor, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
My invention relates chiefly to improvements in composite sash bars and frames
used in glazing station roofs, conservatories and other like places either horizontally,
vertically or sloping, but can be used for glazing in any situation.
A bar made according to my invention consists of two principal parts, an inner
core of any suitable section for strength and an outer casing with wings for closing
down on the glass or plates to make the joints. The outer casing being so closely
and intimately laid on the metal core as to practically form the two into one bar and
thus prevent oxidation of the core.

page_text: Figs. 1 to 8 Sheet 1 of the drawings shew some sections as proposed to be used by
me, but I do not confine myself to any particular form of section, but what I consider
novel and desire to claim is the combination of an inner core and an outer shell or
casing with wings substantially as before described and as illustrated by the drawings
and any mere modification of the same.
Figs. 9 and 10 Sheet 1 shews one mode of connecting my improved composite sash
bars to my improved composite metal ridge piece which can be fixed in position either
by means of one plate and two screw bolts, the plate being passed through the opening
made in the ridge piece for that purpose and as shewn or it can be double plated as
shewn on the drawing, and Fig. 18 Sheet 2.. shews my improved ridge and
capping.
Figs. 13 and 14 Sheet 2. show my improved weathering caves piece and carrying
bracket constructed of rolled iron which consists of a rolled section notched out to
receive the bars at any desired distance apart, and when used with my improved ridge
piece can be fixed by any unskilled labourer."
Figs. 15. 16 and 17 Sheet 2 shews another modification of my improved bar carrier
and eaves piece in cast iron.
The mode of fixing the bars is either by means of the pin as shewn on the drawing
in Fig. 15, Sheet 2, or the bar can be notched and the eaves piece halved to receive
the notched bar, Fig. 19.
The rolled bars can be lead cased the same as the sash bars if desired, or the eaves
pieces can be galvanized.
The improved composite sash bar can be fixed in the ordinary manner of metal
sash bars, or by means of chairs or seats as shewn on Sheet 2 Figs. 11 and 12, or they
can be screwed to timber purlins, or bolted to iron framing direct through holes drilleil
in the flanges or web of the sections.
I do not confine myself to any particular mode of fixing the sash bars or frames,
but I do claim facility in fixing for the novel manner shewn, and the use of the
weathering piece bracketted as shewn, substantially as before described.
The outer casing can be either drawn or rolled to a suitable section and subse-
quently rolled down or drawn onto the core, or by the addition of a receptacle and
guide or even by deepening the metal cylinder of the solid drawing press to receive
the core, and the addition of a guide arm the bars can be formed at one operation, as
before described in the provisional specification.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed, I declare that what I
claim is :-
1st. The combination in a bar for glazing and other like purposes, consisting of a
core of iron or steel of any suitable section, and a casing of lead forming the external
face of the bar with wings or flashings on it to turn down upon the glass or plate, the
wings and casings being formed in one piece substantially in the manner hereinbefore
'described.
2nd. The combination in a sash bar or frame for glazing or other like purposes and
in roof frames of two inetals one of which is to be either iron or steel and the other
lead, forming a composite metal sash bar or frame with suitable wings or flashings to
cover the joints of the glass or plates and with proper rebate to carry the glass or
plate, substantially in the manner hereinbefore described.
Dated this 26th day of June 1889.
JOHN PRESTON.