Improvement in Uoverings 1or koois an
Year: 1896

page_text: Date of Application, 21st Nov., 1896
Complete Specification Left 21st Aug. 1897-Accepted. 16th Oct.. 1897
Improvement in Uoverings 1or koois an
I, Orro HENSCHEL, Manufacturer of 1 Schützenstrasse in Limbach in the King-
dom of Saxony, do hereby declare the nature of this invention to be as follows:-
The resent invention relates to a plate intended for coverings for roofs and
walls and which compared with the tiles and slates hitherto in use, has the
advantage of greater durability and affords a better covering.
The annexed drawing represents the plate in the various figures in different
forms, partly alone in different views and sections, partly when laid together.
Fig. 1 shows the various-plates from above, Fig. 2 as seen from below, Fig. 3
gives a side-view and Fig. 4 shows a part of a roof covered in with these plates.
A second form is shown in Figs. 6 and 7 in lower view and longitudinal section;
the mode in which several plates are joined together will be seen from Fig. 8
in section.
The roof-plate is made from metal-plate in the shape of a square as seen from
Fig. 1-and forms (vide Fig. 4) a hollow body A of equal section throughs at
which is provided with a filling B of cement, plaster of Paris, ashes or some similar
material. On the four sides of the hollow body rabbets are provided in such a
manner that two adjoining sides 6 of the upper plate a of the hollow body
and the sides b1, b 1, which do not correspondend with them, of the lower plate a 1
have each an rabbet.
On the underside a 1 of the plate near to the corner where the two lower rabbets
meet, there is an opening o (Fig. 4) let into the metal, which on the once hand
serves to admit the filling into the hollow body and on the other hand to supply
the latter with air and thereby to keep it dry, so that rust or frost cannot attach
the inside of the plates. Above this opening there is an eyelet which the hook w
which is used for hanging the plate on to the lath of the roof is inserted.
This hook has a hole through which, since the opening is almost entirely
covered by the hook, the air can reach the filling.
This book is interchangeable, so that according to the dimensions of the
roof-laths on which the plates are to be hung, a suitable hook may be fitted on.
In the kind of make as shown in Figs. 6 and 7 the hook is firmly connected
to the plate i.e. made of one piece with it, un isosceles triangle being punshed
out of the lower plate a 1 in such a manner that the base is still joined to the
plate. The triangle is then bent upwards about this base and its apex turned
back so as to form the hook.
The new plates which can be used not only for covering roofs and the exterior
walls of buildings but also for covering interior for instance in shafts,
laundries, agricultural buildings, etc., furthermore also for covering wooden
walls, as in ships, besides the advantages already mentioned as greater durability
and impermeability afford other essential advantages.
Firstly, when used for covering walls, greater clinliness is obtained, simple

page_text: washing or flushing with a stream of water being sufficient to remove any dirt
from them.
Then a roof etc. covered with these plates affords great security against the
spread of a fire since the isolating material inside the plates prevents the trans-
mission of heat. On the other hand a space covered or surrounded by tho new
plates will in the winter retain a certain amount of warmth as here also the
filling acts as an isolator.
Great impermeability is afforded by these plates in consequence of the way
in which they are hung; this is done by means of hooks and not by nails etc.
which perforate the plutes thereby making holes which let in the rain etc., and 1
cause the plates to oxidise quickly and be distroyed.
The plates may either be galvanized, covered with paint or be enamelled.
Dated this 19th day of November 1806
For OTTO HENSCHEL,
Bernhard Brockhues.
I, Orro HENSCHEL, Workmaster of 1 Schützenstreet, Limbach in the Kingdom
of Saxony do hereby declare the nature of this invention and in what manner
the same is to bo performed, to be particularly described and ascertained in and
by the following statement:-
The present invention relates to a plate intended for coverings for roofs and
walls and which compared with the tiles and slates hitherto in use, has the
advantage of greater durability and affords a better covering.
The drawing filed with the Provisional Specification represents the plate in
the various figures in different forms, partly alone in different views and sections,
partly when laid together.
Fig. 1 shows the various plates from above, Fig. 2 as seen from below, Fig. 3
gives a side-view and Fig. 4 a section, while Fig. 5 shows a part of a roof covered
in with these plates.
A second form is shown in Figs. 6 and 7 in lower view and longitudinal section;
the mode in which several plates aro joined together will be seen from Fig. 8
in section.
The roof-plate is made from metal-plate in the shape of a square (as seen from
Fig. 1) and forms (rile Fig. 4) a hollow body A of equal section throughout
which is provided with a filling 13 of cement, plaster of l'aris, ashes or some similar
material. On the four sides of the hollow body rabbets are provided in such a
manner that two adjoining sides of the upper plate a of the hollow body
and the sides b1, b 1, which do not correspond with them, of the lower plate a 1
have each one rabbet.
On the underside a 1 of the plate near to the corner where the two lower rubbets
meet, there is an opening o (Fig. 4) let into the metal, which on the oue hand
serves to admit the filling into the hollow body and on the other hand to supply
the latter with air and thereby to keep it dry, so that rust or frost cannot attack
the inside of the plates. Above this opening there is an eyelet v which the hook w
which is used for hanging the plates on to the lath of the roof is inserted.
This hook has a hole through which, since the opening is almost entirely
covered by the hook, the air can reach the filling.
This hook is interchangeable, so that according to the dimensions of the
roof-laths on which the plates are to be hung, a suitable hook may be fitted on.

page_text: In the kind of mako as shown in Figs. 6 and 7 the hook is firmly connected
to the plate, i.e. made of one piece with it, an isosceles triangle being punched
out of the lower plate a 1 in such a manner that the base is still joined to the
plate. The triangle is then bent upwards about this base and its apex turned
back so as to form the hook.
The new plates which can be used not only for covering roofs and the exterior
walls of buildings but also for covering interior walls for instance in shafts,
laundries, agricultural buildings and the like, furthermore also for covering wooden
walls, as in ships, besides the advantages already mentioned as greater durability
aud impermeability afford other essential advantages.
Firstly, when used for covering walls, greater cleanliness is obtained, simple
washing or flushing with a stream of water being sufficient to remove any dirt
from them.
Then a roof and the like covered with this plate affords great security against the
spread of a fire since the isolating material inside the plates prevents the trans-
mission of heat. On the other hand a space covered or surrounded by the new
plates will in the winter retain a certain amount of warmth as here also the
filling acts as an isolator.
Great impermeability is afforded by these plates in consequence of the way
in which they are hung; this is done by means of hooks and not by nails
and the like which perforate the plates, thereby making holes which let in the
rain and the like and cause the plates to oxidise quickly and be destroyed.
The plates may either be galvanized, covered with paint or be enamelled.
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. Plate for covering in roofs or walls of any kind of metal in the form of a
hollow body of any shape filled with an isolating material and provided with
suitable support ledges or rabbets and detachable hooks on the under side.
2. In the plate as distinguished under 1 the arrangement of an air admitting
opening in one of the sides forming the hollow body.
3. A form of the plate as distinguished in Claim 1 in which the hook is not
detachable but is punched out from the lower side of the plate.
Dated this 20th day of August 1897.
For OTTO HENSCHEL,
Bernhard Brockhues.