Improvements in and connected with Metal Roofing.
Year: 1896

page_text: Date of Application, 25th Feb., 1896-Accepted, 11th Apr., 1896
COMPLETE SPECIFICATION.
Improvements in and connected with Metal Roofing.
I, BERNARD SILBERSZTEIN, of Tatarskaiia, Runowskii, Moscow, in the Russian
Empire, Contractor, 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 relates to improvements in and connected with metal roofing and
has for its object to provide means whereby the metal sheets can be fixed together
without nails so that they do not deteriorate and no leaks are caused by the
oxidation of the edges of the holes from the effects of rain.
According to my invention I fix the metal sheets in position by means of
T-shaped attachments screwed or otherwise fixed to the framework of the roof in
an inverted position. The upper end of the vertical arm of each T piece is
provided with a screw-thread and passes through a jointing strip having curved
edges which embrace the turned over edges of two adjacent sheets. The whole is
fixed in position by nuts screwed on the ends of the vertical arms of the T pieces
and a cover protects the joints and the edges of the metal sheets from the effects of
weather.
In the accompanying drawing,
Figure 1 is a vertical section of a part of a roof constructed according to my
invention:
Figure 2 is a transverse section; and,
Figure 3 is a plan of the same:
Figure 4 is an end elevation to an enlarged scale of one of my T-pieces.
In the accompanying drawing the sheet metal plates are represented much
narrower in proportion to the other parts than they would be in reality in order to
better shew the application of my invention.
The pieces that I employ, and one of which is shewn separately in Figure 4,
comprise a foot or base a provided with holes b, b which may be countersunk or
not as desired, and which are adapted to receive screws c, c which fix the T pieces
to the framing A of the roof, and a vertical arm d attached to the centre of the
foot a and of the same width as the latter. This arm d is screw threaded at its
upper end e.
9
When the T-pieces have been placed in position the metal sheets B, which have
their edges turned over as shewn in Figure 1, are then laid in position. The
edges of two adjacent sheets are then connected together by sheet metal bands,
the edges of which are bent down as shewn and embrace the turned over edges of
the adjacent sheets and keep them pressed against the sides of the vertical arms d
of the T pieces which are passed through the said bands. A nut h is then
screwed on each of the projecting ends e so as to hold the whole solidly on the
framework.
The joints are then covered by caps C having their lower edges i inturned so as
to pass under the turned over edges f of the sheet metal plates B and protect the
joint along its whole length.
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 method of fixing metal roof sheets such method consisting in turning over

page_text: the edges of the said sheets and connecting them together by means of sheet metal
bands through which pass the screwed ends of T-shaped attachments which are
fixed in an inverted position by screws or the like to the framing of the roof, caps
being provided for protecting the joints along their whole length substantially as
described.
2. The improvements in metal roofing herein before described and illustrated in
the accompanying drawing.
Dated this 25th day of February 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.