THE MANUFACTURE OF AN IMPROVED COMPOSITION FOR MAKING OR COVERING ROADS AND FOOTWAYS, AND FOR OTHER ANALOGOUS PURPOSES
Year: 1871

page_text: LETTERS PATENT to Henry Josiah Jupp, of Thomas Street, Burdett
Road, Limehouse, in the County of Middlesex, Wharfinger; for the
Invention of "THE MANUFACTURE OF AN IMPROVED COMPOSITION FOR MAKING
OR COVERING ROADS AND FOOTWAYS, AND FOR OTHER ANALOGOUS PURPOSES."
Scaled the 26th January 1872, and dated the 11th December 1871.
COMPLETE SPECIFICATION filed by the said Henry Josiah Jupp at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 11th December 1871, pursuant to the 9th
Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
JOSIAH JUPP, of Thomas Street, Burdett Road, Limehouse, in the County
of Middlesex, Wharfinger, send greeting.
WHEREAS I am in possession of an Invention for "THE MANUFACTURE
OF AN IMPROVED COMPOSITION FOR MAKING OR COVERING ROADS AND FOOTWAYS, AND
FOR OTHER ANALOGOUS PURPOSES," and have petitioned Her Majesty to
grant unto me, my executors, administrators, and assigns, Her Royal

page_text: Letters Patent for the same, and have made solemn Declaration that
I am the true and first Inventor thereof.
NOW KNOW YE, that I, the said Henry Josiah Jupp, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following
statement:-
:-
The object of my Invention is the production of a composition made
from ordinary well-known materials to be used in the construction or
covering of roads, footways, floors, roofs, bridges, &c., also for lining
cisterns, tanks, and similar structures, and for plastering the interior
sides of the walls of buildings and other structures to protect them
from damp.
The means by which I propose to effect my said object are as
follows:
Firstly. I mix in about equal proportions alumina in the form or
condition of dried and powdered clay, and coal or other mineral tar in
a suitable cauldron, which I place on or over a fire and raise the
mixture to a temperature of from 300 to 400 degrees of Fahrenheit's
scale; in this process the alumina or dry clay absorbs or otherwise 2
unites with and deodorizes the greater portion of the volatile oils con-
tained in the mineral tar. After subjecting the aforesaid mixture or
composition to the said heat for a short time, (say, half an hour, more
or less, according to the nature of the materials,) to assist or facilitate
the absorption of the said volatile oils I add sulphuric or nitric acid a
equal in quantity to about two per centum (2 parts in 100) of the
said composition and maintain the aforesaid temperature for about half
an hour additional, which effectually carbonizes and completes the
deodorization of the residue of the volatile oils contained therein, which
completes the process, and the composition is ready for use, and will a
be found when laid or used to remain uninjured and unaffected by
atmospheric influences.
If it be desired to carbonize the said residue of the volatile oils more
rapidly than by the addition of the acid alone, I add about one per
centum (one part in 100 of the composition) of the black oxide of
manganese to the said acid when or before mixing the latter with the
said composition.

page_text: My improved composition may be either cast in blocks, bricks, roof,
paving, and drain tiles, or be used for any or all of the different purposes
to which natural or artificial asphaltes are applied. When required
for foot ways and other light traffic or work this composition may be
mixed with twenty-five per centum (25 parts in 100 of the composition),
more or less, of sand, gravel, ashes, or other similar and suitable
material.
Having now fully described and ascertained the nature of my said
Invention, and the manner of performing the same, I hereby declare
that what I more particularly claim as my Invention and desire to
secure by Letters Patent is, the manufacture of a cheap, durable, and
inodorous composition or artificial asphalte, substantially as herein
described.
In witness whereof, I, the said Henry Josiah Jupp, have hereunto
set my hand and seal, this Seventh day of December, in the
year of our Lord One thousand eight hundred and seventy-one.