A Process for Manufacturing Incrusted Shingles.
Year: 1888

page_text: Date of Application, 30th Aug., 1888
Complete Specification Left, 16th Apr., 1889-Accepted, 15th June, 1889
PROVISIONAL SPECIFICATION.
A Process for Manufacturing Incrusted Shingles.
We, BERNHARD FRANK, and FELIX ROSENTHAL, trading under the style of Frank
and Co., of Ottensen, in the German Empire, Manufacturers, do hereby declare the
nature of this invention to be as follows :-
The well-dried shingles, cut out in any convenient shape, are boiled in a product
called carbolineum, [obtained by distilling coal tar, and which contains phenol and
other antiseptic compounds] until all the pores in the shingles are filled with it.
The shingles are then pressed to remove all liquid and volatile elements from
the pores as much as possible, and afterwards dried in the open air.
These impregnated shingles will never rot, nor will they warp, because they cannot
take up any more moisture.
They are next covered with a mixture of coal-tar, pitch, resin, and dense coal-tar
oils. The latter containing no more essential volatile and ignitable oils is poured
into the molten pitch and resin, and the shingles are dipped in this compound, while
still warm.
As the shingles manufactured as described above may be considered ignitable by
sparks from chimneys, for instance; they receive a close lining of crushed minerals,
mica, quartz, or asbestos-waste. This lining is pressed into the warm tar-coating until
it becomes quite solid. The incrustation may be produced in any colour, makes the
shingles entirely fire-proof, and imparts a fine appearance.
Dated this 29th day of August 1888.
BERNHARD FRANK.
FELIX ROSENTHAL.
COMPLETE SPECIFICATION.
A Process for Manufacturing Incrusted Shingles.
We, BERNHARD FRANK and FELIX ROSENTHAL, trading under the style of
Frank & Co., of Ottensen, in the German Empire, Manufacturers. 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:
The well dried-shingles, cut ont in any convenient shape, are boiled in a product
called carbolineum [obtained by distilling coal tar, and which contains phenol and
other antiseptic compounds] until all the pores in the shingles are filled with it. The
shingles are then pressed to remove all liquid and volatile elements from the pores as
much as possible, and afterwards dried in the open air.
These impregnated shingles will never rot, nor will they warp, because they canuot
take up any more moisture.
•
They are next covered with a mixture of coal-tar, pitch, resin, and dense coal-tar
oils. The latter containing no more essential volatile and ignitable oils is poured
into the molten pitch and resin, and the shingles are dipped in this compound, while
still warm.
In practice a compound of ninety pounds of coal-tar pitch, five pounds of resin,
and five pounds of dense coal-tar oils to be employed as a coating for the duly
impregnated shingles has given favorable results.
As the shingles manufactured as described above may be considered ignitable by
sparks, e.g., from chimneys, they receive a close covering of incombustible crushed
minerals, mica, quartz, or asbestos waste. This covering is pressed into the warm

page_text: tar-coating until it becomes quite solid. The incrustation may be produced in any
colour. It makes the shingles entirely fire-proof, and imparts a fine appearance.
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:
A process for manufacturing incrusted shingles by which duly cut shingles are
first boiled in a product called carbolineum, then pressed and perfectly dried, after
which they are provided with a coating of coal-tar pitch, resin and dense coal-tar
oils, and finally covered by a close covering of incombustible minerals, substantially
as and for the purpose specified.
Dated this 16th day of April 1889.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, W.C., Agents for the Applicants.