Year: 1896

page_text: Date of Application, 16th May, 1896
Complete Specification Left, 16th Mar., 1897-Accepted, 1st May, 1897
I, ALFRED JAMES PERTON WHITAKER, of East Moors, Cardiff in the County
of Glamorgan, Chartered Accountant, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in roofing plates or sheets of steel, iron,
galvanized iron or terne plates, or other suitable material. Each plate has at one
edge an upwardly projecting flange and at the opposite edge a groove adapted to
fit over the flange of the next adjacent plate so that when the plates are in position.
on the roof they interlock with each other, the upright flange preventing the
passage of water between the plates.
Sheets so formed may be enamelled or painted in various colours and corrugated,
stamped or pressed into any desired shape or form, to suit the eaves or crests or for
finishing or ornamental work.
The plates may be lettered for advertising purposes.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
I, ALFRED JAMES PERTON WHITAKER, of East Moors Cardiff in the County
of Glamorgan, Chartered Accountant, do hereby declare the nature of this inven
tion and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to improvements in roofing plates or sheets.
According to my invention each plate has at one edge an upwardly projecting
flange and at the opposite edge a groove or arched portion adapted to fit over the
flange of the next adjacent plate so that when the plates are in position on the roof
they interlock with each other, the said groove and upright flange preventing the
passage of rain-water between the plates.
In order that my invention may be clearly understood and readily carried into
effect I will proceed to describe the same more fully with reference to the
accompanying drawings.
Figure 1 shows a perspective view and Figure 2 an end view of one of my
improved plates; while Figure 3 is a fragmentary perspective view showing some
of these plates in position upon a roof.
A is the roofing plate or sheet which may be composed of steel, iron, galvanized
iron, terne plate, or other suitable material. B is the upwardly projecting flange
at one edge of the said plate and C is the groove or arched portion at the opposite

page_text: edge which is adapted to fit over the flange B of an adjacent plate when the plates
are in position on the roof, as shown in Figure 3. The plates thus interlock with
each other and in order to hold them more firmly in place they may be secured to
the laths or beams constituting the framework of the roof by means of nails or
screws passed through suitable holes. Or I may adopt any other convenient and
effective means of more firmly securing the said plates in position.
When covering a roof with my plates I may begin at the lower edge of the roof
and arrange each horizontal row of plates with their flanged and grooved edges
parallel with the slope of the roof. The upper edges of one of said rows of plates
are arranged to be overlapped by the lower edges of the next adjacent row of plates
above as shewn in Figure 3, the groove of one plate embracing the flange of the
plate next to it. I do not however confine myself to this system of covering the
roof as I may if found desirable begin at the upper part and work downward. Or
I may arrange the plates with their flanged and grooved edges disposed transversely
to the slope of the roof; or they may be arranged in any other suitable way. In
every case I preferably cause the plain ends or edges of the plates to more or less
overlap.
The plates or sheets constructed according to my invention may be enamelled
or painted any desired colour and corrugated, stamped, pressed or cut into any
desired shape or form to suit the eaves or crests or for finishing or ornamental
work. The plates may be lettered for advertising purposes.
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 :-
1. A roofing plate or sheet of suitable material constructed with an upwardly
projecting flange at one edge and a groove or arched portion at the opposite edge
adapted to fit over the flange of the next adjacent roofing plate substantially as
described and for the purpose specified.
2. A roofing plate constructed of sheet metal substantially as herein described
with reference to the accompanying drawing and for the purpose specified.
Dated thin 17th da
1907
HASELTINE, LAKE & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant.