IMPROVEMENTS IN METALLIC COVERINGS FOR ROOFS AND WALLS
Year: 1884

page_text: "
I GOTTFRIED AUGUST NEBELING of Remscheid in the Empire of Germany, do
hereby declare the nature of the said invention for IMPROVEMENTS IN METALLIC
COVERINGS FOR ROOFS AND WALLS" to be as follows:-
My said Invention relates to metallic roofing and to coverings for walls in which
the longitudinal edges or borders of the several plates or members have volute
scroll or other similarly shaped or curled edges which lap round each other so as
to exclude the weather when the sheets or plates are put together.
The present invention has for its object more particularly to facilitate the
putting together of such plates which is effected by sliding the curled borders
of one plate into or partly into the similarly curled borders of the neighbouring
plate or plates. Each of the plates has one border curling upwards and the other
curling downwards and in putting together a series of say four plates I provide for
the easy joining of the upper and lower pairs of plates without impairing the
weather tightness of the joints. To effect this I form the lower end of the down-
ward curl of each plate so as to be slightly conical in shape and I cut away
a portion of the opposite corner of the upward curl on the same plate. When the
plates are put together the conical enlarged curl permits of the introduction of the
three curled borders of the adjacent plates. The absence of the corner which has
been cut away from the curl of the other plate allows of the easy introduction of
the remaining two curls which lap round each other and thus keep the joints
weather tight. To give further homogeneousness to the series of plates and also to
form a weather tight joint at the ends of the plates where they overlap each other
I form a crescent shaped projection at each end of each plate by stamping or
pressing, the projection in one plate being sprung into the depression in the
following plate in the act of putting the plates together. By the increased
stiffness thus given to a roof or covering formed of these plates I am enabled
to use fewer points of attachment to the roof spars or laths.

page_text: رو
I GOTTFRIED AUGUSTUS NEBELING of Remscheid in the Empire of Germany do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN METALLIC
COVERINGS FOR ROOFS AND WALLS and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement and accompanying drawings:-
My said Invention relates to metallic roofing and to coverings for walls in which
the longitudinal edges or borders of the several plates or members have volute,
scroll or other similarly shaped or curled edges which lap round each other so as to
exclude the weather when the sheets or plates are put together. The present
Invention has for its object more particularly to facilitate the putting together of
such plates and also to means for rendering their combination more weather tight
and effective than heretofore.
And in order that my said invention may be properly understood I will now
proceed more particularly to describe the same with reference to the annexed sheet
of drawings which illustrate my invention.
:
Fig 1 of the said drawings is a plan view of a roofing plate formed in accordance
with my invention while Fig: 2 is a view of the same plate on the reverse side.
Fig 3. is a longitudinal section of Fig: 2. on the line A. B. and Figs: 4 and 5. are
respectively end views of the foregoing figs. Fig. 6 is a plan view of several of the
plates put together. As shown in the drawings the plates consist of rectangular
sheets of any suitably thin metal or material having one edge r. curled upward and
the curled downward. In putting a series of such plates together the curled
edge of one plate is slid into or over the curled edge of the neighbouring plate or
plates but at the lap joint where four plates touch each other as shown for example
at Figs 3 and 6, the said curls require to be relieved so as to allow of the entrance
of the edges of say the fourth plate of the series. To permit of this the curls on
each side at the foot of each plate are formed in a particular manner as shown at 8
and w. Figs 1, and 2. that is to say I cut away a portion of the upward curl 7. for
a short distance as shown at 8. and I also widen the mouth of the curl r¹ as shown
at w. so as to make it slightly conical in formation part of the edge being likewise
cut away as shown at w. Fig: 2. so as to cause the said edge to run spirally back-
ward until it coincides with the inner edge of the curl 71. By this manner of
easing both corners of the plate a junction of the four plates at the lap joint can be
readily effected without imparing the weather tightness of the joint. Fig: 7 is an
enlarged sectional view of the junction of four plate edges. The untouched curls
at the upper corners of the plates II and III are shewn in full lines while the
widened and cut away curl of the plate I. and the cut away portion of the plate IV
are shewn in dotted lines. It will be evident that if the curls of the plates were
not widened and cut away as herein before described and shown, the junction of
the plates could be effected only with difficulty a disadvantage which is entirely 4
obviated under my improved arrangement. At the lap joint the plates under the
ordinary arrangements do not lie sufficiently close together to exclude the weather
and as a consequence they require to be secured by nailing or otherwise to the
sarking, roof-spars or laths. To obviate this necessity I form at each end of each

page_text: plate a crescent shaped projection or rib p. as shown on the drawings the breadth
and height of which are greatest at or about the middle of the plate and fall away
on either side to the general level of the plate. This form of rib allows the plates
to be pushed up into position as the plates yield sufficiently in the centre to pass
over the rib.
When the projecting ribs on one plate come opposite the corre-
sponding recesses on the other plates they are sprung into each other as shown at
Fig 3. so as to form an effective and weather tight joint and besides giving an
increased stiffness to the roof or covering I am enabled by their employment to use
fewer points of attachment to the roof spars or laths.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1. In metallic plates for covering roofs or walls and having curled or scroll edges,
forming a portion of the said curled edges in such a manner as to provide for an
easy and efficient junction of the plates at the lap joints by conically widening
and removing part of the said curls substantially as hereinbefore described and
shown.
2. In metallic plates of the description referred to the employment of crescent
shaped ribs for the purposes and substantial in the manner herein before described
and shown.