Year: 1888

page_text: We CLEMENT WAXIN of 8 Upper Baker Street Gentleman and AUGUSTIN CLERY
of 56 Huntly Street Wall dresser both in Marylebone in the County of Middlesex 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:
The object of this our invention is to produce a cement or artificial stone which
shall be very hard and durable and which can be used either as cement to put as it
were a face on the surface to be treated or as stone to replace those stones that are
decayed or from other causes require removal. It can also be made to exactly imitate
any kind of stone both in colour and appearance and in hardness and is capable of
being sculptured and cut as is the real genuine stone.
To carry out this object and to make this our cement or artificial stone we proceed
as a general rule as follows. We take of stone thoroughly pulverized in any
convenient manner seventy five (75) parts of oxide of zinc twelve and an half (12)
parts and of oxide of magnesia twelve and an half (12) parts and we thoroughly and
completely mix these substances together. We also take of muriatic acid eighty three
(83) parts of zinc seven (7) parts of borax five (5) parts and of sal-ammoniac
five (5) parts which are also mixed together the zinc the borax and the sal-ammoniac
being dissolved in and by the acid. The hereinbefore described solid or dry compound
is then in any convenient vessel dissolved in and by the herein before described liquid
or acid compound until the whole mass has attained the desired liquid or semiliquid
condition when this our resultant cement or artificial stone can be used and applied by
a brush or otherwise as cement or can be poured into moulds or other suitable
appliances for use and application as stone in both of which uses and applications it
will very speedily set and become hard as is desired. We preferably as a general
rule only use such a quantity of the aforesaid liquid or acid compound as is sufficient
to dissolve the aforesaid solid or dry compound and we find that when thirty (30)
parts of the liquid or acid compound are used to dissolve seventy (70) parts of the
solid or dry compound a very good result is obtained but these proportions may be
varied according as a more or less liquid or semiliquid condition is desired.

page_text: The stone that is used in a pulverized condition as herein before described is pre-
ferably that which is to be imitated by this our cement or artificial stone or with
which it is to be used. Thus for or with marble or granite or other stone we should
preferably use pulverized marble or granite or other stone of a similar quality and
appearance.
The proportions also of the several ingredients of this our cement or artificial stone
hereinbefore described are we consider as a general rule the best and most convenient
for all purposes but when for any particular reason it may be deemed advisable to
produce an extremely hard cement or artificial stone we can increase in the aforesaid
solid or dry compound the stated proportions of the oxides of zinc and magnesia by
ten (10) or even twenty (20) parts and in the aforesaid liquid or acid compound the
stated proportions of the zine the borax and the sal-ammoniac by five (5) or even
ten (10) parts reducing the proportions of the stone and the muriatic acid accordingly
and vice versa if a softer cement or artificial stone is required.
Any desired colour and appearance can be produced in this our cement or artificial
stone by using the desired pigment or other colouring material and by properly
placing together two or more pieces or blocks of this cement or artificial stone just
before they begin to set whereby for example the veins in marble can be imitated.
The pigment or other colouring material is preferably mixed with the aforesaid solid
or dry compound if a dry material is used and is preferably poured into the liquid or
acid compound if a liquid material is used. In this manner by using different
colouring materials in the production of separate and different quantities of this our
cement or artificial stone and as aforesaid combining in proper positions these
differently coloured quanties or pieces or blocks of the cement or artificial stone any
even the most variegated marble or granite or other stone can be exactly imitated.
When this our cement or artificial stone is as bereinbefore described poured into
moulds or other suitable appliances for use and application as stone the block so
produced may if desired be subjected to pressure in any convenient manner before it
has completely set and become hard.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
1. The combination of substances for the manufacture of cement or artificial stone
substantially as and in the manner hereinbefore described and set forth.
2. The cement or artificial stone produced substantially in manner hereinbefore
specified.