Improved Method of Imparting a Mottled, Grained, or other Appearance to Painted Surfaces.
Year: 1891

page_text: Date of Application, 27th Nov., 1891
Complete Specification Left, 14th Dec., 1891-Accepted, 16th Jan., 1822
PROVISIONAL SPECIFICATION.
Improved Method of Imparting a Mottled, Grained, or other
Appearance to Painted Surfaces.
A communication from FRIEDRICH LAESECKE, of 63, Südstrasse, Leipzig,
Germany.
I, WILLIAM LLOYD Wise, of No. 46 Lincoln's Inn Fields in the County of
London, Consulting Engineer and Patent Agent, do hereby declare the nature of
this invention to be as follows:-
This invention has reference to a cheap and simple method of imparting a
mottled grained veined or other varied appearance including lettering, and drawings,
to wood, sheet metal, paper and other materials.
For this purpose there is employed a pattern sheet or plate of porous absorbent
material, such for examples as felt, leather, and absorbent cardboard, to which a
non-absorbent substance as for example an oil color or resin hereinafter called a
covering color is applied in such a manner that the uncovered portion of the sheet
or plate of absorbent material corresponds in outline with the drawing design or
the effect to be reproduced.
The surface to be treated is covered with color and whilst the same is moist the
prepared pattern sheet or plate previously moistened with a liquid such for example
as water or turpentine, is pressed firmly thereon. The pattern plate or sheet will
then absorb color from the painted surface except at those parts thereof which
are covered by the covering color on the pattern sheet or plate. The drawing on
the pattern plate will thus appear reversed on the surface treated.
The material best suited for the pattern plate will depend on the nature of the
surface to be treated, that is to say upon whether this surface has a great or small
capacity for absorption, or is rough or smooth. For example, in order to produce
on a painted wall a mottled or veined effect similar to that of marble, the design of
the marble is produced in a solution of shellac, upon chamois-sheep-leather. The
surface of the wall to be treated is painted over uniformly with suitably tinted oil
color, and then after this coat of paint is dry, the wall is painted over with a dark
transparent or glazing color in one or more shades. The sheet of leather is then
moistened and brought into close contact with the moist paint on the wall by the
aid of a brush applied to its back or outer side those parts of the sheet of leather
which are free from shellac, will absorb the greater part of the moist transparent
or glazing color from those parts of the wall opposite to them, whilst those parts of
the sheet which are covered with shellac will absorb extremely little, if any, of the
transparent or glazing color against which they bear.
Work produced in this manner and afterwards treated with the blending or
softening tool, has a soft and delicately shaded appearance.
Other absorbent materials have the same action as leather, but one material may
be more absorbent and another less so, than leather, one absorbing water colors best
and another after being moistened as for example with turpentine or petroleum
will absorb oil color best.
The method of producing a mottled grained or veined surface similar to that of
wood is exactly similar to that heretofore described for producing a marbled
appearance.
For producing light places, and light veined oak markings however, the drawing
of the said light portions is produced upon the absorbent material with fat or with
spirit-varnish and dried, and the said material is then impregnated with glazing
color and printed off on to the surface to be treated. By this means light portions
will be visible on the said surface after the printing off, because the drawing on the

page_text: absorbent material will not have taken up any glazing color. Color applied in this
way may be further treated with a dabber or beater, or with the comb, without
causing the light portions to disappear.
Dated this 27th day of November 1891
W. LLOYD WISE,
Per F. J. Brougham.
COMPLETE SPECIFICATION.
Improved Method of Imparting a Mottled, Grained, or other
Appearance to Painted Surfaces.
A communication from FRIEDRICH LAESECKE, of 63, Südstrasse, Leipzig,
Germany.
I, WILLIAM LLOYD WISE, of No. 46 Lincoln's Inn Fields in the County of
London, Consulting Engineer and Patent Agent, 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 has reference to a cheap and simple method of imparting a mottled,
grained, veined or other varied appearance, including lettering and drawings, to
wood, sheet metal, paper and other materials.
For this purpose there is employed a pattern sheet or plate of porous absorbent
material, such for example as felt, leather, and absorbent cardboard, to which a
non-absorbent substance as for example an oil color or resin hereinafter called a
covering color is applied in such a manner that the uncovered portion of the sheet
or plate of absorbent material corresponds in outline with the drawing design or
the effect to be reproduced.
The surface to be treated is covered with color, and whilst the same is moist, the
prepared pattern sheet or plate previously moistened with a liquid such for example
as water or turpentine, is pressed firmly thereon. The pattern plate or sheet will
then absorb color from the painted surface except at those parts thereof which are
covered by the covering color on the pattern sheet or plate. The drawing on the
pattern plate will thus appear reversed on the surface treated.
The material best suited for the pattern plate will depend on the nature of the
surface to be treated, that is to say upon whether this surface has a great or small
capacity for absorption, or is rough or smooth. For example, in order to produce
on a painted wall, a mottled or veined effect similar to that of marble, the design
of the marble is produced in a solution of shellac, upon chamois-sheep-leather.
The surface of the wall to be treated is painted over uniformnly with suitably tinted
oil color, and then after this coat of paint is dry, the wall is painted over with a
dark transparent color in one or more shades. The sheet of leather is then
moistened and brought into close contact with the moist paint on the wall by the
aid of a brush applied to its back or outer side. Those parts of the sheet of
leather which are free from shellac, will absorb the greater part of the moist trans-
parent color from those parts of the wall opposite to them, whilst those parts of the
sheet which are covered with shellac will absorb extremely little, if any, of the
transparent color against which they bear.
Work produced in this manner and afterwards treated with the blending or
softening tool, has a soft and delicately shaded appearance.
Other absorbent materials have the same action as leather, but one material may
be more absorbent and another less so, than leather, one absorbing water colors best,
and another after being moistened as for example with turpentine, or petroleum,
will absorb oil color best.
The method of producing a mottled grained or veined surface similar to that of
wood is exactly similar to that herein before described for producing a marbled
appearance.
For producing light places, and light veined oak markings however, the drawing

page_text: of the said light portion is produced upon the absorbent material with fat or with
spirit varnish and dried, and the said material is then impregnated with the trans-
parent color and printed off on to the surface to be treated. By this means light
portions will be visible on the said surface after the printing off, because the
drawing on the absorbent material will not have taken up any of the transparent
color. Color applied in this way may be further treated with a dabber or beater,
or with the comb without causing the light portions to disappear.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The herein described method of imparting a mottled, grained, veined, or other
appearance to painted surfaces, by applying to such a surface whilst the same is
moist, a pattern sheet or plate of absorbent material having thercon a drawing
prepared with a non-absorbent substance in such a manner that paint on said
painted surface not covered by the drawing will become absorbed by the parts of
the absorbent material not coated with the non-absorbent substance, and a reversed
copy of the drawing will be produced upon the surface treated.
Dated this 14th day of December 1891.
W. LLOYD WISE,
Per F. J. Brougham.