Improvements in Metallic Roofing.
Year: 1888

page_text: Date of Application, 4th Sept., 1888
Complete Specification Left, 4th July, 1889-Accepted, 10th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Metallic Roofing.
I, GEORG HEINRICH OTTO BOKLEN of Stuttgart in the Kingdom of Wurtemberg,
Engineer, do hereby declare the nature of this invention to be as follows:-
This Invention relates to metallic roofing, and these Improvements consist in the
formation of the sheet and in the use of removable spring clamps which allow the
single sheets to be removed from the roof at will and which facilitate the transit, as
the sheets may be packed in close contact with each other. Further, the formation of
the sheets is such that a tight butt or lap joint can be made without nailing or
soldering.
Each of the roofing sheets is made from metal and has on one of its sides a
rectangular rabbet and on the opposite side a double rectangular rabbet. The upper
ends of the rabbets are of the full depth, but the lower ends are bevelled so that
they are just the thickness of the sheet above the plane of the roof. Between the
rabbets a recess is stamped in the sheet to a depth equal to the depth of the rabbets.
A projecting rivet or pin is secured to the sheet and engages with a spring clamp
which is bent on its upper end and is provided with a slot for receiving the head
of the rivet. The spring clamp is bent at right angles at its lower end so as to
be capable of being fitted upon the roof battens. The interconnection of the plates
constituting the roof is effected by inserting the differently shaped rabbets into each
other and into the recesses. The manner in which the covering of the roof is effected
is as follows:-The sheets in, the first row are secured to the battens so that the
rabbet of one sheet laps over the contiguous rabbet of the next sheet. The sheets
in the second row are similarly laid but so as to break joints with the sheets of the
first row, and so that the rabbets of the second row fit into the recesses of the first
row. The spring clamps are fitted upon the battens and the heads of the rivets are
caused to engage with the slots therein. In this manner a perfectly tight and firm
covering for the roof is obtained.
To remove any one of the plates, the spring clamp is turned through an angle of
90 degrees, when the plate is disconnected from the batten. The slot in the upper
end of the spring clamp is open so that the clamp may be easily removed, thus
allowing the plates to be packed quite closely. A projection or perforation may be
formed upon each of the clamps by means of which they may be secured together by
a wire so as to prevent loss in transit.
A modified forun of the spring clamp may be used. A spring plate is provided with
an indentation and pivotted to the roofing plate so as to be capable of being turned
through a right angle. The clamp is fitted with a corresponding indentation, so that
the indentations may engage with each other.
בד
Law of Santambar A D 18SS.
WILLIAM E. HEYS,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Metallic Roofing.
I, GEORG HEINRICH OTTO BOKLEN of Stuttgart in the Kingdom of Wurtemberg,
Engineer, 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 metallic roofing, and these Improvements consist in the
formation of the sheets and in the use of removable spring clamps which allow the

page_text: single sheets to be removed from the roof at will and which facilatate the transit, as
the sheets may be packed in close contact with each other. Further, the formation of
the sheets is such that a tight butt or lup joint can be made without nailing or
soldering.
Each of the roofing sheets is made from metal and has on one of its sides a
rectangular rabbet and on the opposite side a double rectangular rabbet. The upper
ends of the rabbets are of the full depth. but the lower ends are bevelled so that they
are just the thickess of the sheet above the plane of the roof. Between the rabbets a
recess is stamped in the sheet to a depth equal to the depth of the rabbets. A
projecting rivet or pin is secured to the sheet and engages with a spring clamp which
is bent on its upper end and is provided with a slot for receiving the head of the
rivet. The spring clamp is bent at right angles at its lower end so as to be capable
of being fitted upon the roof battens. The interconnection of the plates constituting
the roof is effected by inserting the differently shaped rabbets into each other and
into the recesses. The manner in which the covering of the roof is effected is as
follows: The sheets in the first row are secured to the battens so that the rabbet
of one sheet laps over the contiguous rabbet of the next sheet. The sheets in the
second row are similarly laid cut so as to break joints with the sheets of the first row,
and so that the rabbets of the second row fit into the recesses of the first row. The
spring clamps are fitted upon the battens and the heads of the rivets are caused to
engage with the slots therein. In this manner a perfectly tight and firm covering for
the roof is obtained.
To remove any one of the plates, the spring clamp is turned through an angle of
90 degrees, when the plate is disconnected from the batten. The slot in the upper
end of the spring clamp is open so that the clamp may be easily removed, thus
allowing the plates to be packed quite closely. A projection or perforation may be
formed upon each of the clamps by means of which they may be secured together by
a wire so as to prevent loss in transit.
+
A modified form of the spring clamp may be used. A spring plate is provided with
an indentation and pivotted to the roofing plate so as to be capable of being turned
through a right angle. The clamp is fitted with a corresponding indentation, so that
the indentations may engage with each other.
Referring to the accompanying drawings, Fig. 1 illustrates two of the roofing.
sheets fitted together side by side; Fig. 2 is a section along the line I I Fig. 1; and
Fig. 3 is a section along line II II Fig. 1. In each Figure a is the metallic sheet,
b is a single rectangular rabbet, c is a double rectangular rabbet, d is the punched
recess for the insertion of the ends of the rabbets in the next row, and fis
spring clamp slotted at g so as to engage with a rivet or stud e secured to the sheet,
and curved or bent at its other end to engage with the roof batten h. The manner in
which the rabbets on contiguous sheets fit within one another and thus hold the sheets
firmly together, is plainly shewn in Fig. 3.
Fig. 4 illustrates a view from underneath of one of the sheets with the spring clamp
turned so as to allow of the removal of the sheet from the batten.
Fig. 5 shews in plan and two sections a modification of the clamp arrangement,
7 being an angle spring pivoted at m and furnished with a groove or corrugation k.
The clamp n is similarly grooved or corrugated to engage with k.
When it is desired
to remove the sheet is revolved around the pivot m and the spring clamp is
removed from the rafter.
The manner in which different sheets and different rows of sheets overlap and fit
one into the other is fully shewn in Fig. 6. Fig. 6a illustrates a section along the
line III III Fig. 6 and Fig. 66 a section along the line IV IV. In all these
Figures, and indicate respectively the single and double rectangular rabbets,
dd are the central recesses into which the ends of the rabbets fit, and is a rafter or
batten to which the plates are secured by means of the described spring clamps.
The new roofing is shewn in section in Fig. 7 and in plane in Fig. 8, one of the
sheets being removed in the latter Figure.
In constructing a roof with the hereinbefore described sheets, one row is first

page_text: applied, the rectangular rabbets in contiguous sheets over-lapping as described and
illustrated. The second row is then laid in a similar manner but so as to break joint
with the first row, and so on, each succeeding row breaking joint with the row next
to it. Each sheet is secured to a batten by means of its spring clamp and in
this manner a perfectly firm and tight roof is made without soldering, riveting, or
nailing.
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) Metallic roofing sheets constructed substantially as and for the purpose herein-
before described and as illustrated by the accompanying drawings.
(2) The combination in metallic roofing of the metallic sheets a with the clamps f
or n and the rivets or angle e and all constructed and arranged substantially as
hereinbefore described and as illustrated by the accompanying drawings.
.
Dated this 2nd day of July A.D. 1889.
WILLIAM E. HEYS,
Agent for the Applicant.