Improvements in or relating to the Fastening or Securing together of Sections of Sheet Metal Roofs and other Structures and in the Means therefor.
Year: 1887

page_text: Date of Application, 13th July, 1887
Complete Left, 12th Apr., 1888
Complete Accepted, 25th May, 1888
Improvements in or relating to the Fastening or Securing together
of Sections of Sheet Metal Roofs and other Structures and in
the Means therefor.
We, WILLIAM ORR, Merchant, and PETER STUART BROWN, Manufacturer, both of
45 West Nile Street Glasgow in the County of Lanark do hereby declare the nature
of this invention to be as follows:-
This invention relates to that class of sheet metal roofs and other structures
wherein at the junction of the edges of two sheets or sections a tube of incomplete
section, that is to say having a slot extending throughout its length, is employed
into which tube the edges of the sheets are passed through the slot and the
invention has for its object to provide a simple and efficient means of securing the
sheets in position.
In practising the invention the edges of the sheets where they meet each other are
bent at or about right angles to the body of the sheets and over the bent portions of
the adjacent edges of two sheets a tube is placed in such a way that the said portions
enter the interior of it a fastener being then inserted between the bent edges of the
sheets to secure them and the tube together. Under the invention this fastener has
its head or part which enters between the bent edges of a breadth or thickness greater
one way than it is the other the head of the fastener being passed in between the
bent edges with its broadest or thickest part parallel to the length of the slot in the
tube. After being so entered the fastener is turned half round which has the effect
of forcing or thrusting the bent edges of the sheets apart and of preventing them
from again passing out through the slot in the tube.
Below the head a shoulder is or may be formed on the fastener the said shoulder
when used bearing on or being under the flat parts of the sheets and at positions
where it is necessary or usual to secure the roofing or other structure to purline
bars or supports the said shoulder may be extended downwards so as to form a
palm which has holes made in it through which and also through like holes in
the purline bars bolts rivets or the like are passed or the lower part of the
fastener may
be otherwise constructed to provide for securing it to the purline
bars or supports.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to the Fastening or Securing together
of Sections of Sheet Metal Roofs and other Structures and in
the Means therefor.
We, WILLIAM ORR, Merchant, and PETER STUART BROWN, Manufacturer, both
of 45 West Nile Street, Glasgow, in the County of Lanark 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 that class of sheet metal roofs and other structures.
wherein at the junction of the edges of two sheets or sections a tube of incomplete,
section, that is to say having a slot extending throughout its length is employed into
which tube the edges of the sheets are passed through the slot and the invention has
for its object to provide a simple and efficient means of securing the sheets in
position.
In practising the Invention the edges of the sheets where they meet each other
are, as seen at a figure 1 of the annexed drawings, bent at or about right angles to
the body of the sheets and, as shewn at figure 2, over the bent portions of the
adjacent edges of two sheets a tube c is placed in such a way that the said portions a
enter the interior of it a fastener being then inserted between the bent edges of the
sheets to secure them and the tube together. Under the invention this fastener, as
illustrated in plan at figure 3, has its head or part d which enters between the bent
edges, of a breadth or thickness greater one way than it is the other that is to say
the breadth is greater on the line 1---1 than on the line 2---2. The head of the
fastener in inserting it is passed in between the bent edges a of the sheets with the
line 11 parallel to the length of the slot c' in the tube c and after being so entered
the fastener is turned through a quarter of a revolution by the application of any
suitable tool or key or by hand which has the effect of forcing or thrusting the bent
edges of the sheets apart and of preventing them from again passing out through the
slot in the tube.
Below the head d a shoulder e is formed on the fastener the turning key being
applied to the said shoulder which bears on or is under the flat parts b of the sheets
and at positions where it is necessary or usual to secure the roofing or other
structure to purline bars or supports, the said shoulder e, as seen by figure 4, may be
extended downwards so as to form a palm which has holes made in it through which
and also through holes in the webs of the purline bars f bolts, rivets or the like are
passed or as shewn by figures 5 and 6 the lower part of the fastener may be.
tapped and passed through the palm h of the purline bar and have a nut g screwed
upon it.
When the roof is too broad from the ridge to the eaves to enable one length of
tube c to be conveniently employed the tubes are joined as indicated at i figure 7
that is to say the end of one tube is widened or expanded to receive another.

page_text: Having now particularly described and ascertained the nature of our said Inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a sheet metal structure the combination of a tube having a slot throughout
its length into which is passed the bent edges of two adjacent sheets and the fastener
having a part by which the edges of the sheet are spread within the tube and a part
for the application of a key, substantially as described.
2. In a sheet metal structure the combination of a tube having a slot throughout
its length, into which is passed the bent edges of two adjacent sheets, and a fastener
having a part by which the edges of the sheets are spread within the tube and
a palm for securing the structure to purline bars or supports, substantially as
described.
3. In a sheet metal structure the combination of a tube having a slot throughout
its length into which is passed the bent edges of two adjacent sheets and a
fastener having a part by which the edges of the sheets are spread within the
tube and a screwed part for securing the structure to purline bars or supports
substantially as described.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.