AN IMPROVED METHOD OF GLAZING
Year: 1884

page_text: I, WILLIAM CLARK Horticultural Builder of 60 Oxford Street Reading in the
County of Berks, do hereby declare the nature of my invention for AN IMPROVED
METHOD OF GLAZING to be as follows:-
No putty cement or felt is required, the work can be done in rain snow or frost
if necessary.
A small bar is constructed of some pliable metal such as zinc or other material
having sufficient strength, or of some combination of such metals or materials.
The section of the said sash bar resembles two capital letters C placed back to
back, with sufficient space between them for an ordinary screw or small bolt. The
bases of the two C's are connected by a flat plate attached thereto, and the apexes
are connected by a concave plate or cap not attached, but clipping the said apexes
& made to slide lengthways thereon.
Through this concave plate or cap a screw or bolt is inserted and fastened beneath.
The said sash-bar being of such substance that the said apexes can be compressed
by tightening the said screw or bolt so as to grip the glass when inserted in the
mouth or cavity of the C, thus excluding rain or wind and preventing the glass
from sliding or rattling.
The said sash bar besides being screwed at each end to the sash, maybe
supported by straight or transverse bars or purlines of wood or metal to which it
can be fastened by the aforesaid screws or bolts.

page_text: I, WILLIAM CLARK of No 60 Oxford Street, Reading in the County of Berks,
Horticultural Builder, 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:-
My improved system of glazing has many advantages. It is extremely simple
and inexpensive, offers, no obstruction to the flow of water, is firm and durable and
can be used either with or without paint, putty or cement. It is easy to fix in any
kind of weather and entirely prevents shaking or rattling of the glass.
In my improved method I employ a specially constructed sash-bar formed of zinc
(by preference) or copper, but it may be made partly of metal and partly of wood
or of some other suitable metal or material which is either pliable or elastic or can
be made to convey a firm but not rigid pressure by being curved or folded or by
being combined with some yielding material so that when tightened there is no
danger of breaking the glass.
This sashbar when made entirely of metal resembles in section two capital
letters C placed back to back, with sufficient space between them to allow of a
small screw (or bolt) being inserted. Their bases are connected by turning back
their lower terminal edges, and uniting them underneath as shewn in figure I in
the accompanying drawings. It is important to notice that wlien formed of metal
the lower terminal extremity of the C must be turned in a curve, so as to ensure a
hollow cushion or elastic bearing for the glass at the point A. The apexes of the
said letters C are connected and held by the turned over edges of an arched cap
which slides over them lengthways-see B. Figure 1.
Through this arched cap at a distance of a few inches from each other, screws (or
bolts) are inserted connecting the cap and metallic bar with the wooden rail of the
sash as shewn at D-figure 2.
A sash-bar on the same principle and of similar section may also be made partly
of wood as shewn in Figure 3.
In this example a wooden rail with a shallow rabbet or ledge for the glass is
placed beneath, and the arched cap B is fixed above a layer of hair-felt, woollen.
fabric, india-rubber, or some other elastic material might in this case be employed
between the metal cap and the wooden rail, to regulate the pressure see E.
Figure 3:
Or, again, if preferred and especially for indoor glazing a wooden cap might be
substituted for the metal cap and might be used with or without the elastic layer
before described upon a metallic base, but it would not be so suitable for exposure
to the weather as the metal cap.
Or a wooden cap may be used in combination with a wood rail and elastic layer
as before described (see Figure 4).
Figure 6 shews the metal cap applied to different forms of wooden sash rails.
When the glass is inserted in the lateral cavity of the letters C. the screw (or
bolt) at D is tightened and the pane of glass is held with a sufficient adjustable
pressure between two elastic folds of pliable metal, (or other suitable substances as

page_text: before described) so that it cannot shake or rattle, and wind or rain are excluded.
Should any moisture penetrate into the C cavity it is obvious that it will flow down
the bar and escape at the end thereof. The lower end of the cap B can be turned
down to prevent any danger of the glass slipping when fixed vertically as shown
in Figure 5 at F.
The said sash-bar besides or instead of being screwed to the sash at each or both
ends may also be supported by straight or transverse bars or purlines, of wood or
metal when required to which it can be fastened by the aforesaid screw (or bolt).
In the accompanying drawings Figure 2. shows a system of glazing on trans-
verse bars. The top ends of the sash-bar and glass are received in the groove H
formed in a bar at the upper end of the pane, while the bottom end of the glass
rests on another and lower bar below, whereon is fixed, when preferred, an india-
rubber tube or band I. I upon which the glass rests, thus affording it a yielding bed
and forming an air tight joint.
Figure 7-shows a plan of a roof or sash glazed by my improved method.
Provision can also be made for drip by means of channels K. K. cut in the
transverse wood bars so that any condensed steam can be conducted away.
It will be observed that no lap of the glass is necessary in this method of glazing,
and stops Clips and buttons are dispensed with. Air can be admitted or excluded
as preferred, and arched or scroll shaped roofs or sashes can be glazed with straight
glass.
Having now particularly described and ascertained the nature of my said
invention, and in what manner it is to be performed, I declare that what
I clain is
1-A novel and inexpensive method of glazing with or without paint putty or
cement which dispenses with nails, clips, stops and buttons.
2-A metallic or other sash bar of peculiar construction having adjustable elastic
cavities, to receive and hold the glass with an easily regulated pressure, while
allowing for expansion and contraction.
3-A combination of my special sash-bar with improved wooden transverse bars
having channels for moisture and elastic cushions so as to form an air-tight roof or
sash as described and illustrated in Figures 2 and 7 in the accompanying drawings.
Dated this 20th day of Amil 100×