improvements in the reparation of materials in the Treatment of Sewage and for other Purposes.
Year: 1886

page_text: improvements in the reparation of materials
in the Treatment of Sewage and for other Purposes.
I FRANK CANDY of N° 6 Leigh Road in the County of Middlesex Manufacturer
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
PREPARATION OF MATERIALS SUITABLE FOR THE USE IN THE TREATMENT OF SEWAGE
AND FOR OTHER PURPOSES" to be as follows:-
According to my invention I take caustic lime and add thereto and mix or
incorporate therewith a quantity of tar or of the green or black oil obtained by
distilling tar or a quantity of any other fluid or semi fluid carbonaceous matter
or matters or a quantity of any resinous or bituminous matter or matters or any
mixture of such matters and I then heat the said mixture of lime and carbonaceous
matter without access of air.
The material tbus prepared may be used in the treatment of sewage and for
other purposes such as the manufacture of black mortar.

page_text: Improvements in the Preparation of materials suitable for so
in the Treatment of Sewage and for other Purposes.
I FRANK CANDY of N° 6 Leigh Road in the County of Middlesex Manufacturer
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:-
According to my Invention I take ground caustic lime and add thereto and mix
or incorporate therewith a quantity of tar and heat the mixture without access of
air I use the said matters in such proportions as to produce a mixture of a rich
chocolate brown colour say about from five to twelve parts by weight of tar to one
hundred parts by weight of caustic lime In preparing the mixture I place the
caustic lime on a floor or surface heated to a temperature of about from one
hundred and fifty to two hundred and twelve degrees Fahrenheit and add the tar
thereto and grind the whole in a mortar mill or other suitable apparatus and thus
thoroughly mix the said matters or I take unground caustic lime and grind it
under edge runners working in a pan heated to the required degree and when
ground I add the tar thereto in the required quantity and mix or incorporate the
whole by the action of the edge runners. The pan may be conveniently heated by
means of a steam jacket. When the said matters have been incorporated I place
the mixture (which is then usually in the form of powder or crumbling masses) in
any ordinary carbonizing apparatus and subject it to heat without access of air
until vapours and gases cease to pass from the carbonizing apparatus. I then cool
the carbonized mixture without access of air.
The material prepared as herein before described is suitable for use in the
treatment of sewage where sewage is required to be made alkaline preparatory to
being treated with precipitants. The use of the said material for the said purpose
is advantageous on account of the deodorizing action of the carbon contained in it
and on account of the purifying effect of the oxygen contained in the pores of the
said material The said material is also capable of use for other purposes such as
the manufacture of black mortar. For the latter purpose the said material is used
in the same manner as ordinary quick lime and being of a dark colour no colouring
matter is required to be added.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what
I claim as my Invention is
The manufacture of the compound material formed as herein described by
preparing and treating lime and tarry matters such material being suitable for use
in the treatment of sewage and for other purposes as above set forth.
Dated this Second door of Iul., 1996
W. T. WHITEMAN,
Agent for the Applicant.