AN IMPROVED METHOD OF GLAZING
Year: 1884

page_text: I, THOMAS WILLIAM HELLIWELL of the Royal Horticultural Works, Brighouse,
Yorkshire Horticultural Engineer, do hereby declare the nature of my invention
for "AN IMPROVED METHOD OF GLAZING" to be as follows:-
I
This Invention has reference to a system of glazing without putty, and my
improvements consist in making a glazing bar with one, two, or three channels or
shoulders on each side of the said bar, one of such shoulders being for the purpose.
of supporting the glass, whilst the other shoulders or channels are for the purpose'
of carrying away the rain water, and allowing for expansion of the glass, or
movement of the structure.
The top of the glazing bar is left open like a pair of jaws into which I place a
doubled strip of lead, or other suitable material, the lower part of such strip being
within the upper edges or jaws of the glazing bar, whilst the edges or upper part
of such doubled strip is projecting above the bar for purposes hereinafter explained.
In order to fasten the upper edges of the glazing bar ånd at the same time to
secure the doubled strip of metal, I first insert between the doubled strip a narrow
length of suitable material for stiffening same, all of which are fastened together by
nails, screws, revit of other devices. The glass is then placed with one edge resting
on the upper shoulder of the glazing bar, and each edge of the metal strip is
afterwards bent down upon the glass which keeps it in position.
The glazing bar may be employed either with or without a cast or rolled metal.
strengthening bar, or a bar made of other suitable material on which the said*
glazing bar rests, or around which it may be partially or wholly wrapped.
In order to prevent the sheets of glass slipping down when they are glazed to'
overlap each other, the narrow strip employed for stiffening purposes is made with
wings or projections, which when turned down 'keep the glass in its place.

page_text: COMPLETE SPECIFICATION.
I, THOMAS WILLIAM HELLIWELL of the Royal Horticultural Works, Brighouse
Yorkshire, Horticultural Engineer do hereby declare the nature of my invention
for "AN IMPROVED METHOD OF GLAZING," and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
This Invention has reference to a system of glazing without putty, and my
improvements consist in making a glazing bar with one, two, or three channels or
shoulders on each side of the said bar, one of such shoulders being for the purpose
of supporting the glass, whilst the other shoulders or channels are for the purpose
of carrying away the rain water, and allowing for expansion of the glass or
movement of the structure.
The top of the glazing bar has a groove cut in it, or left open like a pair of jaws,
into which I place a double strip of lead, or other suitable material, the lower part
of such strip being within the upper edges or jaws of the glazing bar, whilst the
edges or upper part of such doubled strip are projecting above the bar for the
purpose of being turned down upon the edges of the sheets of glass.
Such being the nature and object of my invention I will now proceed by the aid
of the accompanying drawings to describe the same more fully.-Fig 1 is section
of certain parts comprising my improvements, wherein A and B are two bars joined
together by a screw or nail a so as practically to form one solid bar. This bar is
provided on each side thereof with channels b and c to carry away rain water, or
water arising from condensation, the said bar is also grooved at the upper part into
which I introduce a double strip of lead C, or other suitable material, the upper
edges d of such strip being afterwards bent down upon the edges of the sheets of
glass F whereby the said glass is held in position, but to prevent the sheets of glass
being lifted by pressure from the underside, nails or other devices e are inserted in
the bar at suitable distances apart, a portion of such nail projecting out so as to
rest upon the glass as seen in the drawings; the bottom edge of the sheet of glass
also abuts against the devices 6 so as to prevent the glass froin slipping down.
Fig 2 shows a slight modification of my improved system of glazing. In this
case pieces of felt or other material fare employed, and angular pieces of metal g
are also employed, which, together with the felting are made secure to the glazing
bar by screws or other devices, after which the wings d of the strip C are then
turned down upon the glass.
In order to prevent the sheets of glass slipping down when they are glazed to
overlap each other, the narrow strip or angular piece 9 employed for stiffening
purposes is made with wings, or projections h which when turned up keep the
glass in its place, and slipping down is prevented.
Instead of employing two bars A and B and joining them together by a screw as
shewn in Figs 1 and 2 I may employ one bar A as shown in Fig 3, and cut a
groove on the top side thereof in which to insert the metal strip C which is not
doubled up, but drawn to the required shape. In this case wood, putty or other
suitable material i is placed between the turned down edges of the metal strip C

page_text: and the glazing bar, whereby the glazing is made more impervious to rain, wind,
and dust, whilst the bottom edges of the glass abut against the upper end of each
length of wood or putty i consequently they are prevented from slipping down.
Fig 4 shews another slight modified arrangement where the glazing bar is
partially wrapped around the wood core A; the metal strip C being used as
previously explained.
In some cases I employ a cast or rolled metal strengthening bar D as shown in
Fig 5, around or upon which I place a metal glazing bar A having a groove or
opening in the top thereof. Into this groove I insert the lower end of the metal
strip C, the wings d being afterwards bent down onto the glass as shewn in the
drawings. Angular pieces of metal g are employed and made secure to the vertical
part of the strip C by nails or bolts.
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 metal strip C having wings d and made in the various forms herein shewn
and described, in combination with the glazing bar A and stop pieces h and i in
manner and for purposes substantially as herein set forth.
Dated this 7th day of April 1885.
TASKER & CROSSLEY,
Patent Agents,
1, Commercial Street, Halifax,
Agents for the Applicant.