Means for Securing Asphalt Mastic as a Coating or Stopping upon all descriptions of Buildings and Building Materials.
Year: 1891

page_text: Date of Application, 21st Nov., 1891
Complete Specification Left, 19th July, 1892-Accepted, 20th Aug., 1892
PROVISIONAL SPECIFICATION. -
Means for Securing Asphalt Mastic as a Coating or Stopping upon
all descriptions of Buildings and Building Materials.
I, LUDWIG HAARMANN, of Eschershausen, near Holzminden, Germany,
Engineer, do bereby declare the nature of this invention to be as follows:--
It is well known that asphalt mastic does not adhere properly to sandstone,
bricks, wood, concrete &c., and that when applied to these materials, it can without
difficulty be removed.
:
The great toughness, durability and waterproof character of such asphalt
mastic, however, render its application as cementing and isolating medium, highly.
desirable, as is shewn by the frequent fruitless attempts that have been made to
utilise the same.
My present invention relates to means which enable asphalt mastic to be
effectually used as mortar, plaster and stopping material for buildings and building
materials of all description, such as stone, concrete, cement, mortar, wood &c.,
and also as a coating for horizontal, vertical or otherwise placed walls or
surfaces.
The said means are both effectual and easy of application, and they consist
simply in first treating the surfaces to which the asphalt mastic is to be applied
with a solution of such a nature as to cause the asphalt mastic to adhere firmly
thereto.
This solution, which is of a syrupy consistency, consists of a bitumen dissolved
in sulphide of carbon, benzine, or other volatile solvent, the surfaces to be treated
being simply painted or coated with this solution in a concentrated condition..
The solvent evaporates rapidly and only the bitumen remains on the coated surface.
This coating, which may consist of any asphalt-like substance that combines without
difficulty with asphalt mastic, and which may even be used as a component of the
latter, adheres closely to the said surface and thus acts as a medium enabling
asphalt mastic to adhere firmly to the surface, the asphalt mastic being for this
purpose applied in a heated liquid condition.
The bitumen, which thus constitutes an intermediary between the asphalt mastic
and the material to be coated, becomes partially incorporated at the surface with
the warm liquid asphalt mastic, so that on the latter cooling and solidifying it is
thereby bound intimately to the said material, constituting a perfectly waterproof
covering therefor.
In consequence of the coating with the bitumen solution, every kind of material
is made capable of uniting with the asphalt mastic, and it is rendered possible to
apply this in the most extended manner as mortar or plaster for walls and
structures of all kinds, also as a stopping and other similar applications.
The most important feature of the invention however lies in the possibility of
applying the asphalt mastic as an isolating medium, that is to say, the utilisation of
its waterproofing qualities, inasmuch as cellars, foundations, damp walls and the
like, whether of stone, brick, wood, concrete or other material, when first treated
with the bitumen solution, and then coated with the asphalt mastic are rendered
absolutely impermeable to moisture. In this application it is quite immaterial as
to what may be the position of the walls to be covered, or the joints to be filled
out, whether vertical, horizontal or inclined, and whether they are or are not
required to be coated with plaster or cement, before applying the bitumen solution,
as the asphalt mastic hardens rapidly in every position and on every kind of
surface.
The coating of the walls. ioints, stones, beams &c. with the viscous solution is

page_text: effected simply by means of a brush and the asphalt mastic is applied by the same
means that are used for laying on ordinary mortar or plaster.
It may also be particularly noted that by means of this process it is not only
possible to protect enclosed surfaces such as walls, arches and the like, against
damp as above explained, but also, those building materials that are exposed to
the deteriorating effects of the weather, such as the wooden bearers of balconies &c.
can be effectually protected against such effects by coating them on all sides with
the said material.
Dated this 21st day of November 1891
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Means for Securing Asphalt Mastic as a Coating or Stopping upon
all descriptions of Buildings and Building Materials.
1, LUDWIG HAARMANN, of Eschershausen, near Holzminden, Germany,
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 :-
It is well known that asphalt mastic does not adhere properly to sandstone, bricks,
wood, concrete &c., and that when applied to these materials, it can without
difficulty be removed.
The great toughness, durability and waterproof character of such asphalt mastic,
however, render its application as cementing and isolating medium, highly
desirable, as is shewn by the frequent fruitless attempts that have been made to
utilise the same.
My present invention relates to means which enable asphalt mastic to le
effectually used as mortar, plaster and stopping material for buildings and building
materials of all description, such as stone, concrete, cement, mortar, wood &c., and
also as a coating for horizontal, vertical or otherwise placed walls or surfaces.
The said means are both effectual and easy of application, and they consist
simply in first treating the surfaces to which the asphalt mastic is to be applied
with a solution of such a nature as to cause the asphalt mastic to adhere firmly
thereto.
This solution, which is of a syrupy consistency, consists of a bitumen dissolved
in sulphide of carbon, benzine, or other volatile solvent, the surfaces to be treated
being simply painted or coated with this solution in a concentrated condition. The
solvent evaporates rapidly and only the bitumen remains on the coated surface.
This coating, which may consist of any asphalt-like substance that combines without
difficulty with asphalt mastic, and which may even be used as a component of
the latter, adheres closely to the said surface and thus acts as a medium enabling
asphalt mastic to adhere firmly to the surface, the asphalt mastic being for this
purpose applied in a heated liquid condition.
The bitumen, which thus constitutes an intermediary between the asphalt mastic
and the material to be coated, becomes partially incorporated at the surface with
the warm liquid asphalt mastic, so that on the latter cooling and solidifying it is
thereby bound intimately to the said material, constituting a perfectly waterproof
covering therefor.
In consequence of the coating with the bitumen solution, every kind of material
is made capable of uniting with the asphalt mastic, and it is rendered possible to
apply this in the most extended manner as mortar or plaster for walls and structures
of all kinds, also as a stopping and other similar applications.
The most important feature of the invention however lies in the possibility of
applying the asphalt mastic as an isolating medium, that is to say, the utilisation
of its waterproofing qualities, inasmuch as cellars, foundations, damp walls and the

page_text: like, whether of stone, brick, wood, concrete or other material, when first treated
with the bitumen solution, and then coated with the asphalt mastic are rendered
absolutely impermeable to moisture. In this application it is quite immaterial as
to what may be the position of the walls to be covered, or the joints to be filled out,
whether vertical, horizontal or inclined, and whether they are or are not required
to be coated with plaster or cement, before applying the bitumen solution, as the
asphalt mastic hardens rapidly in every position and on every kind of surface.
The coating of the walls, joints, stones, beams &c. with the viscous solution is
effected simply by means of a brush and the asphalt mastic is applied by the same
means that are used for laying on ordinary mortar or plaster.
It may also be particularly noted that by means of this process it is not only
possible to protect enclosed surfaces such as walls, arches and the like, against
damp as above explained, but also, those building materials that are exposed to
the deteriorating effects of the weather, such as the wooden bearers of balconies &c.
can be effectually protected against such effects by coating them on all sides with
the said material.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The method of securing asphalt mastic to surfaces which consists in applying a
solution of a bituminous substance to the surface and, after the evaporation of the
solvent, applying the mastic, substantially as described.
Dated this 19th day of July 1892.
ABEL & IMKAI,
Agents for the Applicant.