IMPROVEMENTS IN THE MANUFACTURE OF LUBRICATING COMPOUNDS
Year: 1876

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
"IMPROVEMENTS IN THE MANUFACTURE OF LUBRICATING COMPOUNDS."-A com-
munication from abroad by Henry Von Phul, Draper, and Peter Benjamin
Groat, both of Hannibal, Missouri, United States of America.
ealed the 19th May 1876, and dated the 10th January 1876
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 10th January 1876.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN THE MANUFACTURE OF
LUBRICATING COMPOUNDS." A communication.
My aim is to provide a cheap durable lubricant free from acid, grit, or gum,
which can endure a high degree of heat and is not decomposed by friction.
i
To prepare the lubricant I take petroleum in any of its commercial forms or of
any degree of purification, and to it add a saturated solution of lime water. The
latter is poured into the petroleum gradually, meanwhile stirring constantly, and
until the lime solution is thoroughly incorporated in the petroleum; I add the lime
water until the mixture begins to thicken or becomes soapy. The stirring is kept
up until the color of the mixture becomes a dark brown; continued stirring changes
it to a dark drab and then to a light drab. The compound is fit for use as a
lubricant when it is of a dark brown color; it is improved by stirring until the
lighter shades appear. The compound thus formed is further improved by com-
bining with it any kind of animal fat, in the ratio of one pound of animal fat to one
gallon of the compound. While adding the fat the stirring is maintained; it is
equally practicable to combine the petroleum and animal fat first, and afterwards to
add the lime water. The precise amount of lime water to add cannot in advance be
named as different oils take up different quantities of lime water; a smaller
quantity of the animal fat than above-named can be combined with the other
elements with advantageous results. The lime water is valuable in neutralizing
the deleterious ingredients which are found in petroleum. It also renders the
lubricant incombustible and prevents its gumming. If from standing the compound
becomes too thick it may be thinned by adding more of the petroleum.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said William Robert Lake in the Great Seal Patent Office on the 24th June
1876...
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN THE MANUFACTURE OF
LUBRICATING COMPOUNDS." A communication to me from abroad by Henry Von
Phul, Draper, and Peter Benjamin Groat, both of Hannibal, Missouri, Ūnited States
of America.
My object is to provide a cheap and durable lubricant free from acid, grit, or gum,
which will endure a high degree of heat and is not decomposed by friction.
To prepare this lubricant I take petroleum in any of its commercial forms or of
any degree of purification, and to it add a saturated solution of lime water. The
latter I pour into the petroleum gradually while stirring constantly, and until the
lime solution is throughly incorporated in the petroleum, I add the lime water until
the mixture begins to thicken or becomes soapy. The stirring is continued until
the colour of the mixture becomes a dark brown; continued stirring changes it to a
dark drab and then to a light drab; the compound is fit for use as a lubricant when
it is of a dark brown color; it is improved by stirring until the lighter shades
appear. The compound thus formed is further improved by combining with it any
kind of animal fat in the ratio of one pound of animal fat to one gallon of the
compound. While adding the fat the stirring is maintained; it is equally
practicable to combine the petroleum and animal fat first and afterwards to add the
lime water; the precise amount of the lime water to be added will vary as different
oils take up different quantities of lime water. A smaller quantity of the animal
fat than above-named may be combined with the other elements with advantageous
results. The lime water is valuable in neutralizing the deleterious ingredients
found in petroleum. It also renders the lubricant incombustible and prevents its
gumming. If from standing the compound becomes too thick it may be thinned
by adding more of the petroleum.
Having thus fully described the said Invention as communicated to me by
my foreign correspondents, and the manner of performing the same, I wish it
understood that I claim,-
First. The lubricant consisting of petroleum and lime water combined, as above
described.
Second. The lubricant consisting of petroleum, lime water, and animal; fat com-
bined, as above described.
Third. The process of manufacturing a lubricant from petroleum and lime water
(with or without animal fat), as above described.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twenty-fourth day of June, in the year of our Lord One
thousand eight hundred and seventy-six.
Witness,
HENRY L. BAILEY,
8, Southampton Buildings,
London.
W. ROB“. LAKE,
(L.S.)