IMPROVEMENTS IN SUBSTANCES USED FOR THE PURPOSES OF LUBRICATION
Year: 1878

page_text: LETTERS PATENT to Alexander Forsyth, of Salford, in the County of Lancaster,
Clerk, for the Invention of "IMPROVEMENTS IN SUBSTANCES USED FOR THE
PURPOSES OF LUBRICATION."
Sealed the 24th December 1878, and dated the 26th June 1878.
•
PROVISIONAL SPECIFICATION left by the said Alexander Forsyth at the
Office of the Commissioners of Patents on the 26th June 1878.
ALEXANDER FORSYTH, of Salford, in the County of Lancaster, Clerk. "IMPROVE-
MENTS IN SUBSTANCES USED FOR PURPOSES OF LUBRICATION."
"
My Invention consists in the use of a certain substance to be applied to moving
parts, whereby a more effective lubrication is obtained. The substance I employ is
oxide of silver, a small portion of which I find has the desired effect. This material
may be mixed with any of those fatty substances now employed for lubrication,
and may be combined with hemp or other fibrous material used in its raw state, or
woven, or otherwise manufactured.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alexander Forsyth in the Great Seal Patent Office on the 24th
December 1878.
ALEXANDER FORSYTH, of Salford, in the County of Lancaster, Clerk.
MENTS IN SUBSTANCES USED FOR PURPOSES OF LUBRICATION."
"IMPROVE-
My Invention consists in the use of a certain substance to be applied to moving
parts, whereby a more effective lubrication is obtained. The substance I employ is
oxide of silver, a small portion of which I find has the desired effect.
In carrying out my Invention I take any of those fatty substances now employed
for lubricating purposes, and I intimately mix therewith, by any suitable mechanical
means, a small portion of oxide or sub-oxide of silver. The quantity to be added
to the fatty matter may be varied, but as a guide I may state that I have found
one per cent. of the oxide to answer the purpose, and the combined materials
nay then be conveyed to the moving parts to be lubricated in any ordinary
manner.
It is well known that fibrous materials previously saturated with fatty matters
are employed as packing for moving parts, and my Invention may be adapted in
this manner, or in any other known method of diminishing friction.
The oxide of silver above referred to may be obtained in any known manner, but
I do not limit myself to its use in a pure state, as it may be contaminated with
impurities to a certain extent, and may perhaps contain a portion of finely divided
inetallic silver; if combined with much impurity the per-centage used will of course
be varied. The best proportion will be readily ascertained by practice.
Having thus described and ascertained the nature of my said Invention, and the
nanner in which the same is to be performed, I desire it to be understood that I
claim as secured to me under the above in part recited Letters Patent and for the
purpose above set forth, the use of oxide of silver, substantially as described,
combined with ordinary lubricating materials.
In witness whereof, I, the said Alexander Forsyth, have hereunto set my hand
and seal, this Twenty-third day of December, in the year of our Lord One
thousand eight hundred and seventy-eight.
ALEXANDER FORSYTH. (LS)