AN IMPROVED LUBRICANT, PACKING, AND NON-CONDUCTOR
Year: 1881

page_text: LETTERS PATENT to James George Accles, of Hartford, Connecticut, in the
United States of America, now residing at South Shields, in the County of
Durham, Engineer, and Joseph David Scott, of South Shields aforesaid,
Mariner, for an Invention of "AN IMPROVED LUBRICANT, PACKING, AND
NON-CONDUCTOR."
COMPLETE SPECIFICATION filed by the said James George Accles and
Joseph David Scott at the Office of the Commissioners of Patents on the
7th December 1881.
JAMES GEORGE ACCLES, of Hartford, Connecticut, in the United States of
America, now residing at South Shields, in the County of Durham, Engineer, and
JOSEPH DAVID SCOTT, of South Shields aforesaid, Mariner. "AN IMPROVED
LUBRICANT, PACKING, AND NON-CONDUCTOR."
Our Invention has for its object improvements in the manufacture, production,
or treatment of lubricants, packing and non-conducting materials, and has reference
to lubricants and packing intended respectively to prevent heating or leakage in
the working parts of machinery, steam engines, or other motors in cases where
subject to heating by friction or to leakage, and the non-conducting material is
for clothing engines, boilers, and pipes, or for other purposes where it is desired to
prevent radiation or conduction of heat.
As a lubricant we mix alumina, as hereinafter defined, with oils, tallows, and
greases, the proportions depending upon the consistency required. By alumina we
mean and include hydrates of alumina and its various 'salts, such as sulphates of
alumina, phosphates of alumina, or kaolin.
The oils we prefer to use are gallipoli, castor, and rape seed, but many other oils
are applicable and may be used.
The tallow or grease we prefer to use is pure Russian, but common tallows and
several greases are applicable and may be used.

page_text: The proportions in which we prefer and propose generally to mix the alumina
with the oils, tallows, and greases are per 112 lbs., tallow, 46 lbs.; gallipoli, 22 lbs. ;
castor oil, 22 lbs.; rape oil, 21 lbs. ; alumina, 1 lb.; but the proportions may be
varied for the purpose of producing a lubricant of proper consistency for the work
to which it is to be applied, and we do not restrict ourselves to the precise pro-
portions named above. The tallow being dissolved in a boiler or pan the oils are
inixed with it by stirring until the mixture reaches the boiling point. It is then
run into a vat or trough, where it remains till it begins to stiffin sufficiently to
hold the alumina in suspension, when the alumina in a powdered state is added
and mixed in by stirring.
A lubricant is thus produced suitable for all purposes, where heat is caused by
friction in machinery, steam engines, or other motors.
For the purpose of making packing we take some suitable absorbent material,
such as cotton, yarn, hemp, or the like, formed either with or without a "core," and
saturate the same with the lubricant. Or we use the alumina as a powder to mix
into some suitable fibrous material as a medium for holding it.
For the purposes of a non-conducting material we use the alumina as a powder
mixed with water, in combination with some or any other substances, as French
chalk, plaster of Paris, cement, or the like, in about the proportion of one part of
alumina to two parts of the selected substances to the consistency of a paste for
application to the purpose required.
Having now described our Invention, and the manner in which it is to be
carried into practical offect, we declare that what we consider to be novel and
original, and therefore claim is,—
First. A lubricant containing alumina, as herein before defined, in admixture
with tallows, greases, or oils, substantially as described.
Second. The use as a packing of fibrous material saturated or treated with
lubricant containing alumina, as above defined, in admixture with tallows, greases,
or oils, or with alumina, as above defined, unmixed with tallows, greases, or oils,
substantially as described.
Third. A non-conductor of heat containing alumina as above defined, in com-
bination with other non-conducting materials or material, substantially as
described.
In witness whereof, we, tho said James George Accles and Joseph David
Scott, have hereunto set our hands and seals, this Sixth day of December,
in the year of our Lord One thousand eight hundred and eighty one.
Witness,
T. J. DANSON,
(L.S.)
J. GEORGE ACCLES.
JOSEPH DAVID SCOTT. (L.S.)
Consulting Engineer & Patent Agent,
Newcastle on Tyne.