IMPROVEMENTS IN GLAZING OR SECURING THE GLASS ON CONSERVATORIES, HORTICULTURAL AND OTHER BUILDINGS, ROOFS, AND SKYLIGHTS
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by James Pilbrow at the Office of the
Commissioners of Patents on the 3rd December 1879.
JAMES PILBROW, of Hastings, in the County of Sussex, Civil Engineer.
"IMPROVEMENTS IN GLAZING OR SECURING THE GLASS ON CONSERVATORIES,
HORTICULTURAL AND OTHER BUILDINGS, ROOFS, AND SKYLIGHTS."
This my Invention relates to the method and means to be employed for placing
and securing, the sheets or squares of glass or other material, which will be easily
understood by the following description, and reference to the accompanying
Drawings.
The roof or part to be glazed having been constructed in any usual manner by
principal rafters at convenient distances apart, having longitudinal bars or laths
affixed thereon, say from 18 inches to 30 inches, or other distance apart as may be
preferred, that is to say, as far apart or distant from each other as the dimensions
of the sheets of glass intended to be employed shall measure. This Invention
consists in the use of particularly formed fillets, ribs, or rails, of a length rather more
than that of the glass, made of zinc or other suitable metal placed at right angles
to the bars or laths, and which shall he secured to each bar or lath and also
attached by their ends interlocking with, each other, and their lower part or web
passing between the edges of the sheets of glass in the vertical direction, and
thereby closing or covering the vertical joint by the side laps, and the peculiar
formation of the ends of the said zinc fillets, ribs, or rails, not only secures
themselves together by interlocking, but by forming a stop secures the glass in its
place, preventing it from slipping or sliding down or out of its place, at the same
time permitting of any sheet of glass being removed or put in its place from the
underside of the roof, or inside the building, without disarranging any other.
Figure 1 in the Drawing represents the transverse section of one of the metal
fillets, ribs, or rails, the dotted line shewing the edges of two sheets of glass between
which the metal fillet, rib, or rail passes, overlapping their edges respectively thus
making a good weather joint.
Figure 2 shows the method or form in which the upper end of these rails is made
in side view, and
Figure 4 in plan or top view, and
Figure 3 the form in which the lower end of each rail is made, which is done
by cutting longitudinally the lap or flap part of the rail, so as to allow of its being

page_text: bent or turned as a hook underneath at the lower end, and above for the upper
end of the rails, the web or under portion b being left projecting as shewn.
Figure 6 represents two of these rails or fillets in their places locked together by
the hooked parts c and resting upon, and secured to one of the longitudinal bars or
laths shewn in section d, where it is seen that the lower portions or webs of the
rails are secured to the bars or laths, by not only being partially let into them by
a groove or slot e, which is dovetailed, as shewn by Figure 5, but are further
secured by a nail or screw falso; a, a, represent portions of two sheets of glass,
where they overlap each other at the bars or laths, the lower sheet resting upon
the upper surface of the bar, and the upper sheet overlapping and resting upon the
end of the lower sheet at g, and being held in its place and prevented from slipping
or sliding out or down by butting against the hooked or twined part of the fillet
or rail, as at h. It is evident here that although the squares or sheets of glass
cannot slip downwards, any one or more can be drawn upwards if desired, and a
fresh sheet inserted or slipped down in its place from the in or under side.
Figure 7 represents on a smaller scale in section, a series of sheets of glass bars
and their connections, as further illustrating my Invention and mode of carrying
it out.