AN IMPROVED COMPOSITION OIL OR LIQUID USEFUL PARTICULARLY FOR ILLUMINATING PURPOSES
Year: 1871

page_text: LETTERS PATENT to Carl Christian Molchin, of 21, Cockspur Street,
Westminster, in the County of Middlesex, for the Invention of
"AN IMPROVED COMPOSITION OIL OR LIQUID USEFUL PARTICULARLY FOR
ILLUMINATING PURPOSES."-A communication from abroad by Carl
Jahnoomnise of Sehwerin in Mecklenburg in Germany
Sealed the 28th June 1872, and dated the 30th December 1871.
PROVISIONAL SPECIFICATION left by the said Carl Christian Molchin
at the Office of the Commissioners of Patents, with his Petition,
on the 30th December 1871.
I, CARL CHRISTIAN MOLCHIN, of 21, Cockspur Street, Westminster,
5 in the County of Middlesex, do hereby declare the nature of the said
Invention for "AN IMPROVED COMPOSITION OIL OR LIQUID USEFUL PARTICULARLY
FOR ILLUMINATING PURPOSES," a communication to him from abroad by

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Carl Christian Molchin in the Great Seal Patent
Office on the 29th June 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CARL
CHRISTIAN MOLCHIN, of 21, Cockspur Street, Westminster, in the
County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of December, in the
year of our Lord One thousand eight hundred and seventy-one, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Carl Christian Molchin, Her special
licence that I, the said Carl Christian Molchin, my executors, adminis-
trators, and assigns, or such others as I, the said Carl Christian Molchin,
my executors, administrators, and assigns, should at any time agree
with and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "AN
IMPROVED COMPOSITION OIL OR LIQUID USEFUL PARTICULARLY FOR ILLUMINATING
PURPOSES," a communication to me from abroad by Carl Schneeweiss, of
Schwerin, in Mechlenburg, in Germany, upon the condition (amongst
others) that I, the said Carl Christian Molchin, my executors or
administrators, by an instrument in writing under my, or their, or
one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said Carl Christian Molchin, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement:-
The objects aimed at by this Invention are,—
1st. That the flames from lamps which are filled with this oil
composition or liquid shall emit in burning much more light than a
lamp supplied with ordinary oil.

page_text: 2nd. That the flame from this oil or composition or liquid and
the wick inflamed shall keep alight even when carried on a locomotive
with a great draught operating thereon.
3rd. In comparison generally with other oils shall be slower in
consumption by burning, therefore affording great economy in use.
4th. That smokiness shall be avoided or reduced to a minimum.
The oil composition or liquid referred to consists of the following
constituents, namely, of rapeseed oil, and of petroleum, camphor, and
common salt, or their equivalents commingled together so as to form
one compound oil or composition or liquid, which in order to the
efficient attainment of the objects above stated it is proper should be
used in lamps of such construction as will maintain a good and constant
supply to the wick, like the library or reading lamps and railway
carriage lamps now in use.
125 ounces of rapeseed oil.
75
petroleum.
12+
3
common salt.
camphor.
It is desirable that the rapeseed oil and camphor should be mixed
together by well shaking that mixture, whereby the rapeseed oil and
camphor become well combined together when the petroleum is to be
added, and that mixture containing this added petroleum is to be well
shaken so as to combine all together when the common salt is to be 2
introduced and the whole has to be well shaken up together, and after
being allowed to stand so that the salt settles at the bottom, the
composition will upon the removal of the salt be ready for use.
The above-named substances and proportions are those which have
been found to answer upon trial; but a due admixture of mineral and 3
vegetable oils other than those named might be found useful, and I
therefore reserve to myself liberty to use them in substitution for
rapeseed and petroleum as above named.
I also reserve to myself the liberty to supersede common salt and
camphor by any chemical or chemicals, substance or substances, that 3
will have substantially the same effect when used in combination with

page_text: the oils, that is, may be capable of being used in the place of the salt
for freeing the oils from superfluous water, or of replacing the camphor
for improving the light.
Having now particularly described and ascertained the nature of the
said Invention, and in what manner the same is to be performed,
I declare that I claim the herein-described Invention of "An Improved
Composition Oil or Liquid useful particularly for Illuminating Purposes,"
wherein the mixture of mineral and vegetable oils with the other sub-
stances herein-before mentioned are important and peculiar features.
In witness whereof, I, the said Carl Christian Molchin, have here-
unto set my hand and seal, this Twenty-eighth day of June, in
the year of our Lord One thousand eight hundred and seventy-
two.
CARL CHRISTIAN MOLCHIN. (L.S.)
Witness,
THOMAS MORGAN,
Secretary,
Inventors' Patent Right Association, Limited,
21, Cockspur Street,
S.W.