Improvements in Glazing Buildings and Structures.
Year: 1891

page_text: Date of Application, 29th Jan., 1891
Complete Specification Left, 29th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in Glazing Buildings and Structures.
I, THOMAS TULLOCH, of 64 Church Street, in the Town and County of
Inverness, North Britain, Painter, Glazier and Paperhanger, do hereby declare
the nature of this invention to be as follows:-
This invention which relates to improvements in glazing buildings and structures
has for its object to enable greenhouses, vineries, conservatories, roofs of warerooms,
workshops, railway stations and all buildings where light is required from the root
or otherwise to be glazed with any kind of glass without sash bars or putty. being
used. All that is required is that purlins' be placed horizontally at regular intervals
apart resting and binding the principal couples of the roof as is generally done. To
the purlin are attached clips formed of iron, zinc or copper and for thick heavy
glass the clip is formed with a sliding cap which can be slipped off when repairs are
necessary.
.
The clips being fastened to the lower purlin, the sheets of glass which are
preferably cut in the form of a trapezoid are placed on the purlins at regular
distances apart, the widest side being placed down and resting on the clips between
which, and the glass, thin sheets of lead are inserted. Between the edges of the
sheets of glass on the lower purlins are placed slips of hard wood of the same
thickness as the glass with grooves cut in their lower sides to enable the condensed
moisture to get out and to keep back drift.
The next row of sheets of glass are placed on the purlins and are supported by:
the aforesaid clips but having their widest sides placed at the top, and having a
cover of an inch, or an inch and a half over the edges and resting on the adjoining.
sheets, or as much cover as may be thought necessary to suit the pitch of the roof.
The thin sheet lead is then firmly packed in between the cap of the clip and the
glass which keeps it firm and prevents it shifting. For the next row of glass above,
the clips are attached to the side of the purlins and taken over the tops of the lower
sheets and glazed in exactly the same manner as the lower ones. The weight of
the top rows serves to keep the lower ones firmly in their places.
At the top of the light there is a groove made, into which the glass slips and a
flashing of lead as is usually done is placed over the wood or iron and down on to
the glass. At the ends of the light there are double grooves provided with beads
so as to fit on to the glass, the said beads are then covered with lead as is usually
done:
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioner's Agents.
. COMPLETE SPECIFICATION.
Improvements in. Glazing Buildings and Structures.
I, THOMAS TULLOCH of 64 Church Street, in the Town and County of
Inverness, North Britain, Painter, Glazier and Paperhanger, 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 which relates to improvements in glazing buildings and structures
has for its object to enable greenhouses, vineries, conservatories, roofs of warerooms,
workshops, railway stations, and all buildings where light is required from the
roof or otherwise, to be glazed with any kind of glass without sash bars or putty
Di

page_text: being used and consists in employing horizontal purlins arranged at equal distances
apart and which rest on and bind the roof's principal couples as usual. To the said
purlins are attached metal clips, and which when used in connection with heavy
glass are provided with removable sliding caps.
But in order that the foregoing may be more readily understood I will describe
the same with reference to the accompanying drawings. Figure 1 of which is an
elevation of a roof light, Figure 2 a cross section and Figures 3 and 4 detail views.
Referring to the said drawings I fasten by nails or otherwise to the lower
purlin A, a number of metal clips B, which may be made of iron, zinc or copper,
and when heavy glass is used they are provided with removable sliding caps b.
The clips B being fastened to the said purlin A, the sheets of glass C which are
preferably cut in the form of a trapezoid as shown, though if desired I may use
square or oblong sheets of glass, are placed on the said purlin A and the next A' at
regular intervals apart; the said sheets are placed with their widest side down
which rests in the said clips B, between which and the glass thin sheets of lead
packing D are placed. Between the edges, of the sheets of glass on the lower
purlin A are placed slips of hard wood same thickness as the glass used and having
grooves cut in their lower sides to enable the condensed moisture to get out and
also to keep back drift.
The next row of sheets of glass C are next placed on the purlins with their
widest side up and having a cover of an inch or more, according to size and weight
of sheets as well as the pitch of the roof, over the edges of the adjoining sheets on
which they rest. The thin sheet lead D is then packed firmly in between the glass
and the clips caps so as to keep them firm and prevent them shifting. For the
next rows of glass above the clips B are secured to the purlins as before but they
are taken over the tops of the lower sheets of glass and the row is then glazed in
exactly the same way as the lower, ones and so on. The weight of the top rows
and the clips for the next row being fastened above the lower row of sheets of glass
they thus tend to keep the lower ones firmly in position.
At the top of the light there is a groove made into which the glass slips and an
ordinary flashing of lead E is then fixed over the top edges of the glass shects. At
the ends of the light there are double grooves with beads which fit on to the glass
and are then covered as usual by lead E' or if desired the glass may project over
the frame and not need lead. In some cases if desired I may insert between the
overlapping edges of the plates or sheets of glass a soft oiled or other cord which is
preferably secured to the lower sheets by a solution, so as to prevent wind, dust or
rain from entering in.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is :-
My improved method and means for glazing buildings and structures without the
use of sash bars and putty; all substantially as herein before described and shown in
the accompanying drawings.
Datad this 98th love of Outalo 1901
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.