IMPROVEMENTS IN LUBRICATING COMPOUNDS
Year: 1884

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PROVISIONAL SPECIFICATION.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
LUBRICATING COMPOUNDS," a communication to me from abroad by J. Dyson
Dearbon Wass of the City, County and State of New York, United States of
America to be as follows:-
This Invention relates to an improved lubricating compound composed of
paraffine, mineral oil and tale with or without the addition of alcohol, and to the
manufacture of blocks or cartridges of this compound with a protective sheath or
envelope of paraffine.
The proportions of the constituents of the compound may be varied and those
hereafter stated are given by way of example only.
The compound is prepared as follows. I take one pound of paraffine and melt it
by heat and then stir in one pound of any suitable mineral oil and when the
mixture has cooled until it has assumed the consistency of paste I stir into it 1/20th
part of a pound of pulverized tale, continuing the stirring until the ingredients are
thoroughly incorporated.
The lubricating compound is then allowed to cool and solidify, and is cut
pressed, or divided into suitable blocks or pieces, or made into balls or cartridges,
when it is ready for use.
If alcohol is added it should be stirred in the proportion of 100th part of a pound
before the talc is added.
The compound when cut up or formed into blocks or cartridges is dipped into
melted paraffine and quickly withdrawn whereby the blocks or cartridges are
coated with a protective coating or sheath which effectually seals the compound
from the atmosphere and gives the cartridges a smooth hard exterior, enabling
them to be handled without damage.

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
LUBRICATING COMPOUNDS" (a communication to me from abroad by Dyson Dearbon
Wass of the City, County and State of New York, United States of America,) and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention relates to an improved lubricating compound, composed of
paraffine, mineral oil, and talc, with or without the addition of alcohol, and to the
manufacture of blocks or cartridges of this compound with a protective sheath or
envelope of paraffine.
In carrying out the invention I prepare the improved lubricating compound in
the following manner :-I take one pound of paraffine and reduce it to liquid form
by melting, and I then stir into the paraffine one pound of any suitable mineral
oil. I then add to the mixture, and stir in, a one hundredth part of a pound of
alcohol. I allow the mixture to cool slightly until it assumes the consistency of a
paste, and, while in this condition, I stir into it one-twentieth part of one pound of
pulverized talc, and continue the stirring until the ingredients are thoroughly
mixed.
The lubricating compound thus formed is then allowed to cool and solidify, and
is then cut, pressed, or divided into suitable blocks or pieces, or made into balls or
cartridges, when it is ready for use.
The compound may be made with or without the alcohol, but in general it is
preferable to add the alcohol, as it seems to have the effect of quickening the
formation of the ingredients into a homogeneous mass.
The compound, thus formed, is an improvement on those in which talc is used in
connection with crude forms of petroleum, grease, spermaceti and other vegetable,
mineral, and animal oils, as it is much cleaner and does not gum up the parts of
machinery to which it is applied. I do not claim broadly the uso of talc in
connection with crude forms of petroleum, or mineral, vegetable, or animal, oils.
After the compound has been pressed, cut, or divided into suitable form it is ready
for use, but it is improved, and its preservative and other qualities increased, by
being sealed in an envelope of paraffine which protects the compound from the air
and also melts when in use so as to mix with and become a constituent of the
lubricating compound. The lubricating compound is preferably pressed or cast by
any suitable means, into the form of cylinders or cartridges, having, when finished,
a diameter of one inch and one-eighth, a length of two inches, and a weight of one
ounce. But any other convenient dimensions and any other suitable shape may be
employed.
When the cakes or cartridges are prepared as before described, I envelope them
in paraffine in the following manner :-
In a convenient vessel I heat a suitable quantity of paraffine until it reaches the
fluid condition; I then dip the prepared balls, cakes or cartridges in the melted
paraffine and quickly withdraw them, by which operation I completely cover the
ball, cake, or cartridge, with an external coating of paraffine which preserves the
compound, forms a smooth hard coating enabling the ball, cake, or cartridge, to be
handled, and when placed in the axle box or grease cup of the journal to be
lubricated melts and mixes with the other constituents so that the whole mass
serves as a lubricant for the journal.

page_text: 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 what
I claim is:-
1st A lubricating compound made as herein described, of paraffine, mineral oil,
and talc, in about the proportions set forth.
2nd A lubricating compound made as herein described, of paraffine, mineral oil,
tale, and alcohol, in about the proportions set forth.
3rd A cake, ball, or cartridge of lubricating compound composed of paraffine,
mineral oil, and talc, with or without the addition of alcohol, enclosed and sealed
within a shell or coating of paraffine as ect forth.