Improvements in the Manufacture of Concrete or Artificial Stone for Paving and the like.
Year: 1884

page_text: This Specification was, upon the 7th day of January, 1888, amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883..
Improvements in the Manufacture of Concrete or Artificial
Stone for Paving and the like.
I JOHN ALLCOCK JONES of 1 Zetland Road, Middlesbrough-on-Tees in the
County of York, Merchant and Manufacturer do hereby declare the nature of my
invention for IMPROVEMENTS IN THE MANUFACTURE OF CONCRETE OR ARTIFICIAL
STONE FOR PAVING AND THE LIKE to be as follows:-
I take slag or scoria which is a refuse from the blast furnace and after such slag
has been annealed whether by its own initial heat or by extraneous heat I use it
in combination with portland or other cement for making artificial stone. I grind
and mix the same together by preference in a motar or pug mill. It is then
placed in moulds and when set removed. I also use grey and silver sand or silica
with the slag for certain purposes. Annealed slag is slag heated and slowly cooled.
by means of an oven or other convenient way.
JOHN ALLCOCK JONES..

page_text: Stone) for Paving and the like.
1 JOHN ALLCOCK JONES of 1 Zetland Road, Middlesbrough-on-Tees in the
County of York, Merchant and Manufacturer do hereby declare the nature of my
invention for IMPROVEDMENTS IN THE MANUFACTURE BLOCKS (OF CONCRETE OR
ARTIFICIAL STONE) FOR PAVING AND THE LIKE and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement --
I take slag or scoria which is a refuse from the blast furnace and after such slag
has been annealed whether by its own initial heat or by extraneous heat I use it
in combination with pPortland or other cement for making blocks (of artificial stone.)
1 grind and mix the same together by preference in a motar or pug mill. It is then
placed in moulds and when set removed. Annealed slag is slag heated and slowly
cooled by means of an oven or other convenient way.
In practically carrying out my invention I proceed as follows. The slag in a
very leated_state after its leaving the blast furnace is placed in the shape of blocks
or pieces inside an oven or other convenient receptacle, and the interior-of the-blocks.
being much hotter than the outside and the oven being charged with them an
equalization of heat permieates the mass. They are then slowly The oven thus charged
is allowed to cool slowly taking in the operation about forty eight hours more or less.
The slag is thus annealed. Of course extraneous heat may be applied to the ovens to
aid in increase the heat or prolong the operation of cooling or to wholly raise the heat
in which latter case the slag would be charged cold or only with a small degree of
sensible heat.
I take by preference (though I do not confine myself limit the invention to these
exact proportions) three parts of annealed slag and after it has been broken or crushed
I further grind it by preference in a motar mill to the requisite degree of fineness. I
then mix with it one part by weight of Portland or other good hard setting cement
and when these are incorporated I add the requisto quantity of water to make it
plastic. It is then removed and placed in moulds of size and shape suitable for
paving stones and the like. I find first that by using annealed slag and cement,
and second that by incorporation in a motar mill as described there is a great
acquisition of strength in the resulting material.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I wish it to be
understood that I do not claim broadly the use of annealed slag ground or pulverized,
in combination with cement in the manufacture of concrete for large flat continuous

page_text: surfaces such as floors for walking upon or similar purposes but that I desire to limit
the invention to blocks (of artificial stone) that may be readily handled or removed from
one place to another for paving and other purposes and I declare that what I
claim is
First the use of annealed slag-mixed-with-cement-to-make--artificial-stone
substantially as herein described.
Second the incorporation of annealed slag with cement-by-preference in a
motar mill to make artificial-stone-substantially-as-herein described.
Blocks (of artificial stone) for paving or the like composed of annealed slag or scoria
and Portland or other hard setting cement intimately ground or incorporated together
and set in moulds substantially as and in the proportion specified.
Dated this 5th day of February 1885.
JOHN ALLCOCK JONES.

page_text: PROVISIONAL SPECIFICATION.
I JOHN ALLCOCK JONES of 1 Zetland Road, Middlesbrough-on-Tees in the
County of York, Merchant and Manufacturer do hereby declare the nature of my
invention for IMPROVEMENTS IN THE MANUFACTURE OF CONCRETE OR ARTIFICIAL
STONE FOR PAVING AND THE LIKE to be as follows:-
I take slag or scoria which is a refuse from the blast furnace and after such slag
has been annealed whether by its own initial heat or by extraneous heat I use it
in combination with portland or other cement for making artificial stone. I grind
and mix the same together by preference in a mortar or pug mill. It is then
placed in moulds and when set removed. I also use grey and silver sand or silica
with the slag for certain purposes. Annealed slag is slag heated and slowly cooled
by means of an oven or other convenient way.

page_text: I JOHN ALLCOCK JONES of 1 Zetland Road, Middlesbrough-on-Tees in the
County of York, Merchant and Manufacturer do hereby declare the nature of my.
invention for IMPROVEMENTS IN THE MANUFACTURE OF CONCRETE OR ARTIFICIAL
STONE FOR PAVING AND THE LIKE and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement
I take slag or scoria which is a refuse from the blast furnace and after such slag
has been annealed whether by its own initial heat or by extraneous heat I use it
in combination with portland or other cement for making artificial stone. I grind
It is then
and mix the same together by preference in a mortar or pug mill.
placed in moulds and when set removed. Annealed slag is slag heated and slowly
cooled by means of an oven or other convenient way.
را
In practically carrying out my invention I proceed as follows. The slag in a
very heated state after its leaving the blast furnace is placed in the shape of blocks
or pieces inside an oven or other convenient receptacle and the interior of the blocks
being much hotter than the outside and the oven being charged with them an
equalization of heat permiates the mass. They are then slowly allowed to cool
taking in the operation about forty eight hours more or less. The slag is thus
annealed. Of course extraneous heat may be applied to the ovens to aid in the
operation or to wholly raise the heat in which latter case the slag would be
charged cold or only with a small degree of sensible beat.
I take by preference though do not confine myself to these exact proportions
three parts of annealed slag and after it has been broken or crushed I further
grind it by preference in a mortar mill to the requisite degree of fineness. I then
mix with it one part by weight of portland or other good cement and when these
are incorporated I add the requisite quantity of water to make it plastic. It is
then removed and placed in moulds suitable for paving stones and the like. I find
first that. by using annealed slag and cement, and second-that by incorporation
in a mortar mill as described there is a great acquisition of strength in the
resulting material.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
First the use of annealed slag mixed with cement to make artificial stone
substantially as herein described.
Second the incorporation of annealed slag with cement by preference in a
mortar mill to make artificial stone substantially as herein described.
י
✔ 11
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JOHN ALLCOCK JONES.