Improvements in Glazing for Horticultural Structures.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Glazing for Horticultural Structures.
I, JACOB GAIT, of Ston Easton, near Bath, Somerset, Builder, do hereby declare
the nature of this invention to be as follows:
My invention relates to improvements in glazing the roofs of conservatories and
the like, and has for its object to provide means whereby such structures may be
made perfectly watertight, without materially increasing their cost.
My invention consists in making the panes or sheets of glass (with which the
structure is covered) to have a very slight curve towards the centre, so that the
water falling on them may all flow towards and down this central hollow, a slight
sudden rise at each side of the pane preventing any leakage at the sides of the sash
bars; sheets of glass made for the purposes of this invention are adapted either
for vertical and oblique sash bars, or for placing on rafters or laths laid
horizontally.
In carrying this invention into effect the sheets of glass are of any suitable
length and width; for oblique and vertical glazing, they are bent very slightly
to form a hollow in the centre, say about half inch to ne foot, with each side
sharply turned up at the edge, say about a quarter of an inch in width, this will
allow it to be firmly bedded with putty in the sash bars, or to be gripped by any
suitable clip secured to the bar, or grooves may be made in the sides of the sash
bars and the edges of the glass inserted and imbedded in putty, or may be attached
to the bars in any well known manner; the turned up edges of the glass causes
all the water to flow down towards the hollow in the centre, the sheets are laid on
the sash bars, with each one slightly lapping the one below it, according to the
usual method: For glazing on rafters or laths laid horizontally, the sheets of glass
are also bent in the centre but one side only has the edge turned up, the other
edge being bent for a short distance in a double curve, to lap over the other or
turned up edge to prevent the entrance of any water at the joints, these sheets are
laid on the laths like ordinary tiles, and held to the roof by the usual vandyked
clips or other suitable means.
The lower corners of each sheet have a small portion cut away, to prevent the
water dripping from a sharp angle against the sash bars or laths or the turned up
edges of the adjacent panes.
Dated this 4th day of December 1896.
J. G. WESTLAKE,
2, John Street, Bristol, Applicant's Agent.

page_text: I, JACOB GAIT, of Ston Easton, near Bath, Somerset, Builder, 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:-
My invention relates to improvements in glazing the roofs of conservatories and
other structures, and has for its object to provide means whereby such roofs may
be made perfectly watertight without a material increase in cost.
With roofs of conservatories as at present made, the glass is set in the rebates of
the sash bars or rafters and jointed with putty and in a very short time the action
of the sun and wind will cause the putty to shrink away from the frame or glass,
consequemy wat soaks through the joints causing injury and annoyance, to
r.medy this, I provide sheets of glass with ridges or turned up edges at the sides,
extending from one end of the sheet to the other, these being laid in the sash bars
in the usual manner and covered with putty will prevent the water leaking
through at the edges of the sheets and bars; the sheets may be made perfectly
plain or slightly curved to cause the water to flow down the centre as preferred.
My invention and the means of putting the same into operation are fully
described in connection with the accompanying sheet of drawings, in which Fig. 1
is a projection of a sheet of glass made for the purpose; Fig. 2 shows several of
these insition on a section of a roof, and Fig. 3 is a section of a sash bar. show-
two adjacent pieces of glass laid on the bar and imbedded in putty. The
sheets may be made horizontal as indicated in Fig. 1, or slightly curved as shown
by dotted lines a which will cause the water to flow down the middle of the sheets,
but in actual operation, it is found that the flat surface will serve all practical
purposes as well as the concave.
A is a sheet of glass made with a horizontal surface between the ridges or pro-
jections B which extend along the sides of the sheet to within a few inches of the
end such omission being made to allow the upper sheet to rest on the under one,
without any intervening space where the sheets lap, if preferred, the sheets may be
slightly curved as shown by dotted lines a; C are sash bars or rafters in which
the sheets are laid and embedded in putty; Fig. 3 showing an enlarged section of
the same.
As stated in the Provisional Specification, the sheets may be attached to the
sash bars in any manner known to the trade, the essential feature of the inven-
tion being the construction of ridges on the edges of the sheets to prevent the
water from overflowing or soaking through the joints.
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 formation of sheets of glass for covering the roofs of conservatories and
other structures with ridges or edges at the sides to prevent the water from over
flowing or soaking through the putty and thence through the roof at the junction
of the glass and sash bar, substantially as herein set forth and shown.
Dated this 4th day of September 1897.
J. G. WESTLAKE,
2, John Street, Bristol, Applicant's Agent.