Improvements in the Manufacture of Artificial Stone.
Year: 1896

page_text: Date of Application, 30th Oct., 1896-Accepted, 2nd Jan., 1897
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Artificial Stone.
I, AUGUSTIN CLÉRY of 71 Southampton Row, W.C. in the County of London,
Sculptor 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 :-
My invention relates to the preparation of a more or less plastic stony mass
which is destined for the manufacture or moulding of stony objects or articles of
every description, for applying stony surfaces or coverings on inside or outside
brick and other walls as well as on pillars, columns, cornices, capitals, mouldings
and other inner and outer parts of a building.
This plastic mass is furthermore particularly suitable for reconstituting decayed
stone and hence for restoring buildings the stonework of which has been partly
worn out or abraded by the weather. In this case the decayed portion of the
stones is first cut away and faced with the plastic mass aforesaid, the latter being
carved like ordinary stone when hard.
As my improved stony mass is thoroughly water-tight and damp proof it is
highly suitable for lining cisterns, cellars, basements and for covering and
protecting all surfaces exposed to the action of a moist atmosphere.
In carrying out my invention into practice I prepare 1. A mixture of solid
substances as hereinafter set forth; 2. A liquid which is added to such mixture for
the purpose of forming a mass of a more or less plastic consistence according to the
work to be performed, the proportions of (1) and (2) being generally three of the
former to one of the latter, but such quantities may be varied more or less
according to requirements, without departing from the nature of my invention.
This mixture (1) differs in some cases and I shall now indicate its constituents and
proportions under three heads, that is to say

page_text: (d) For pavements, vestibules, corridors, steps, landings, &c.
Crushed granite
Zinc oxide
70 per cent.
30 per cent. or thereabouts.
Instead of granite I may use marble or Belgian blue stone. For steps I use
coal waste, or pumice stone as a filling material which is covered over with the
stony material.
The solid mixture to which a suitable quantity of the liquid mixture is added in
the manner herein before set forth is worked with a trowel until the two are
thoroughly incorporated together and form a homogeneous plastic mass of suitable
consistency according to the object in view when it is used in the ordinary
manner.
For the purpose of imitating various shades of stone I make use of ochres.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :
1. A more or less plastic stony material for making vases, statues, ornaments
and the like and for restoring and covering old and new stone of every description
in outer walls or frontages consisting of 33 per cent. of zinc oxide and 67 per cent.
of pulverized sandstone or freestone mixed together, the resulting mixture being
converted into a plastic mass by the addition thereto of about one third of its
weight of a liquid composed of 65 per cent. of muriatic acid and 35 per cent. of zinc
or thereabouts, substantially as herein described.
2. A more or less plastic stony material for lining basements cisterns, cellars, vaults.
and the like consisting of 30 per cent. of oxide of zinc, 35 per cent. of pulverised
Portland stone and 35 per cent. of sand mixed together, the resulting mixture being
converted into a plastic mass by the addition thereto of about one third of its
weight of a liquid composed of 65 per cent. of muriatic acid and 35 per cent. of zinc
or thereabouts, substantially as herein described.
3. A more or less plastic stony material for covering interior walls, ceilings,
cornices etc. consisting of 50 per cent. of pulverized marble, 20 per cent. of silver
sand and 30 per cent. of oxide of zinc mixed together, the resulting mixture being
converted into a plastic mass by the addition thereto of about one third of its
weight of a liquid composed of 65 per cent. of muriatic acid and 35 per cent. of zinc
or thereabouts, substantially as herein described.
4. A more or less stony material for pavements, vestibules, corridors, steps,
landings etc. consisting of 70 per cent. of granite and 30 per cent. of oxide of zinc
mixed together, the resulting mixture being converted into a plastic mass by
the addition thereto of about one third of its weight of a liquid composed
of 65 per cent. of muriatic acid and 35 per cent. of zinc or thereabouts, substantially
as herein described.
Dated this 30th day of October 1896
DE KATOW & Co.,
Agents for the Applicant.