Improvements in the Manufacture of Plastic Materials.
Year: 1897

page_text: the like and as a material for cartridges. From this material I can also produce
weather-proof blasting cartridges.
The water glass is used in the form of a solution.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in the Manufacture of Plastic Materials.
I, ANDREAS GUULSEN HAEIRE, of Hadeland, Oestre Lunner, in the Kingdom
of Norway, Engineer, do hereby declare the nature of this invention and in what 1
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:—
This invention relates to a method of manufacturing a plastic fire-proof
material which sets rapidly and can be cast, such material being adapted for us-
for various building purposes, for manufacturing floor coverings, mouldings. 1
tiles, doors, door lining, building slabs and the like, for the manufacture of figures
or statues musket balls, weather-proof explosive cartridges and other article ;
which can be moulded.
For producing the material I mix together wood pulp, cement such as hydraulic
or Portland cement and a solution of water glass. If figured articles are to be 2
produced this is advantageously effected in moulds wherein the pressing takes
place. If the material is to be employed as a floor covering or the like the mix-
ture is applied in a similar manner to asphalt. The proportions of the mixture
may be varied according to the rapidity with which the setting is to take place.
For mouldings, coverings of houses and the like, for instance, the following pro- 2
portions have been found suitable:-
Wood pulp
Hydraulic or Portland Cement
Water glass
40 to 70%
30 to 15%
30 to 15°
0
Another material, which has been found more suitable for the use in inner
rooms, such as for stucco and the like, is for instance composed as follows:-
Wood pulp
Hydraulic or Portland Cement
Water glass
70 to 90%
10 to 2%
20 to 8%
In lieu of the wood pulp I may also use cellulose, peat fibre and like vegetable a
fibre. Instead of the cement I may also employ chalk, lime, marble, dolomite,
felspar, quartz and similar minerals in a pulverized state. The said substances
may also be used mixed together.
The material produced according to my aforesaid method is distinguished by
its fire-proof quality, its capability of withstanding water and moisture, and of
setting or hardening very rapidly, and it possesses the advantage of being a non-
conductor of heat and of electricity. Further, the material is very durable when
subjected to changes of temperature and does not change by heating, nor does it
undergo any change of homogeneity on becoming hot. Accordingly the material
may also be advantageously employed for the manufacture of rifle bullets and
the like and as a material for cartridges. From this material I can also produce
weather-proof blasting cartridges.

page_text: The water glass is used in the form of a solution the concentration of which
may be varied according to the wish of the workman. For rapidly setting masses
a highly concentrated solution may be used.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
I claim is:-
A method of manufacturing fire proof, water-resisting rapidly hardening, noa
conducting plastic materials for building purposes, for paving, for producing
figures, musket balls, weather-proof explosive cartridges, the characteristic feature
consisting in mixing a woody substance (peat, cellulose and other vegetable fibres!
and hydraulic or Portland cement (chalk lime, marble, dolomite, felspar, quartz
and analogous minerals) with a solution of water-glass.
D
1011
1907
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.