Year: 1896

page_text: We, ALOIS ZBORIL and ALBERT SCHENK DOEN
ienna,
the Empire of Austria, Manufacturers, do hereby declare the nature of this inven-
on to be as follows:-
The improved covering is prepared by coating floors, walls, or other surfaces with a
ixture of magnesia (burnt pulverised magnesite) silicate of magnesia, saw-dust,
ark or peat or sand or stones, with a basic solution of magnesium chloride.
Layers of the material of any desired thickness may be applied either horizontally
or floors) or vertically on rough brickwork or on wooden walls (for wall covering and
sulation) or in an inclined direction (for covering roofs).
A suitable composition is as follows::-
(b)
(c)
(d)
(a)
(b)
35
about 60-70 parts by weight magnesite
40-30
desired
39
silicate of magnesia, to which may be added if
40 parts by weight of saw-dust, bark or peat, or instead of the
Intter up to
60 parts by weight of sand or stone; and finally
70-80 parts by weight of basic solution of chloride of magnesium, or
we may take
80-85 parts by weight of magnesia
20-15
etc.)
""""free silicic acid (infusorial earths, fossil meal
(c) about 40 parts by weight of saw-dust, bark, peat, hair, straw, chaff, pine-
needles or instead of the latter
(c) about 60 parts by weight of sand or stones and
70-80
Or we may use
(a)
(b)
(c) about
about
وو
"
employed.
solution of chloride of magnesium may be
60-80 parts by weight of inagnesia (burnt magnesite)
40-20
"
,, silicic acid in combination as ferric silicate
of iron, ferrous silicate of iron water glass, serpentine.
40 parts by weight of saw-dust, bark, peat or
60 parts by weight of sand or stones, and
(d) about 70-80 " "
"
solution of chloride of magnesium.
The materials-mentioned are thoroughly mixed, diluted like concrete and applied
a coating to a support of wood or stone (such as a layer of concrete, or a stone or
rick pavement) as a continuous seamless layer.
In a few days the mass solidifies and forms a durable perfectly seamless fireproof
vering.
By using a material of similar nature mixed with suitable colouring inaterial, the

page_text: covering (which we call xylolith-covering) may be made of any desired pattern or
design.
We do not confine ourselves to the exact proportions or materials given, as these
may be varied within wide limits..
Dated this 28th day of December 1896.
BOULT & WADE,
Agents for the Applicants
COMPLETE SPECIFICATION.
Improved Covering for Floors, Walls and for Similar Purposes.
We, ALOIS ZBORIL and ALBERT SCHENK both of IV Hundsthurmerstrasse 1 Vienna in
the Empire of Austria, Manufacturers, do hereby declare the nature of this inven-,
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:
The improved covering is prepared by applying to floors, walls, or other surfaces a
mixture of magnesia (burnt pulverised magnesite) silicate of maguesia, saw-dust,
cellulose, wood, wool or the like, bark or peat, or sand or stones, with a basic solution
of magnesium chloride.
Layers of the material of any desired thickness may be applied either horizontally
(for floors) or vertically on rough brickwork or on wooden walls (for wall covering and
insulation) or in an inclined direction (for covering roofs).
When the material is desired to be used in a continuous layer, we may make a
suitable coin position as follows:-
(a) about 60-70 parts by weight magnesite
(b)
(c)
(c)
3
(b)
40-30
"
وو
silicate of magnesia, to which are added
40 parts by weight of saw-dust, cellulose, wood, wool, bark or peat or
instead of the latter up to
60. parts by weight of sand or stone; and finally
70-80 parts by weight of basic solution of chloride of magnesium, or
we may take
80-85 parts by weight of magnesia
20-15 part by weight of free silicic acid (infusorial earths, fossil' meal
etc.)
(c) about 40 parts by weight of saw-dust, cellulose, wood, wool, bark, peat, hair,
straw, chaff, pine-needles or instead of the latter
about 60 parts by weight of sand or stones and
70-80
Or we may use
(a)
(b)
employed.
or solution of chloride of magnesium may be
60-80 parts by weight of magnesia (burnt magnesite)
40-20
"
"
silicic acid in combination (as ferric silicate
of iron, ferrous silicate of iron, water glass, serpentine).
(c) about 40 parts by weight of saw-dust, cellulose, wood, wool, peat, bark or
about 60 parts by weight of sand or stones, and
(d) 70-80 " "
"
,, solution of chloride of magnesium.
The materials mentioned are thoroughly mixed, diluted like concrete and applied
as a coating to a support of wood or stone (such as a layer of concrete, or a stone or
brick pavement) as a continuous seamless layer.

page_text: In a few days the mass solidifies and forms a durable perfectly seamless fireproof
covering.
By using a material of similar nature mixed with suitable colouring material, the
covering (which we call xylolith-covering) may be made of any desired pattern or
design.
Instead of using the materials mentioned as a continuous layer, they may be made
into plates which are then used in the nsnal manner, as for paving panels etc. That
is to say, instead of applying the composition directly to the surface to be covered,
and then allowing it to set or harden, it may first be spread over or applied to moulds
and after setting be applied to the surface to be covered. And for this purpose we
may use either the composition containing the saw-dust, cellulose etc. or the compo-
sition containing the sand or stones, or we find combined plates of the two materials
are especially suitable. For instance a lower plate of say about 3 centimetres thick-
ness of magnesia-cement, concrete and an upper one secured to the lower one, of say
10 to 15 millimetres thickness of natural-coloured or any other-coloured wood-cement-
inaterial.
The two compositions are preferably combined in a mould into which one composi-
tion is placed after the other, in a soft state, and left therein for several days until
they form a strong plate, like stone, at the bottom and wood-like at the top.
In order to make such plates, the composition above described may be employed
but we find it advantageous to increase the quantity of sand in the cement concrete
composition. As an example the following proportion of materials thoroughly mixed
together may he employed
By using suitably shaped moulds, the plates may be made fluted, recessed,
divided etc., and by placing uniform coloured material in the recesses the plates may
be made in any desired pattern or design, or they may be divided into coloured fields
or blocks.
We do not confine ourselves to the exact proportions or materials given, as these
may be varied within wide limits.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A composition for covering floors, walls and for similar purposes consisting of a
mixture of burnt magnesite; silicate of magnesia; or silicic acid free or in
combination; saw-dust, cellulose wood-wool or the like; and a solution of chloride of
magnesium with or without colouring material, substantially as described.
2. A composition for covering floors, walls, and for similar purposes consisting of a
mixture of burnt magnesite, silicate of magnesia; or silicio acid free or in combination

page_text: sand or stone; and a solution of chloride of magnesium, with or without colouring
material, substantially as described..
3. Plates or slabs for covering floors, walls and for similar purposes, formed from a
mixture of burnt magnesite; silicate of magnesia or silicic acid free or in combination
saw-dust, cellulose, wood-wool or the like; and a solution of chloride of magnesium
with or without colouring material; or formed froin a mixture of burnt magnesite;
silicate of magnesia or silicic acid free or in combination; sand or stone; and a
solution of chloride of magnesiuin with or without colouring material, or compound
plates or slabs of the two materials substantially as described.
Dated this 24th day of September 1897
BOULT & WADE
Agents for the Applicant.