An Improved or New Manufacture of Black Lead.
Year: 1892

page_text: Date of Application, 16th Dec., 1892
Complete Specification Left, 18th Feb., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
An Improved or New Manufacture of Black Lead.
I, RICHARD RIPLEY of Blandford Street Works, Liverpool in the County of
Lancaster, Blue Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention has for its object the giving of a brilliant polish to black lead
without the very large amount of friction now required to effect that object.
The invention consists in making the composition of, (first) graphite or plumbago
or black lead, (second), beeswax and (third), turpentine. This combination can be
varied to a considerable extent; thus in place of beeswax, other waxes greases,
mineral waxes and the like can be used which will give the peculiar polish or shine
which polished wax does, and in place of turpentine, other menstrua in which
beeswax is soluble, such for instance as petroleum spirit can be used. The whole
is mixed together, allowed to set and compressed into cakes.
Dated the 14th day of December 1892.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved or New Manufacture of Black Lead.
1, RICHARD RIPLEY of Blandford Street Works, Liverpool, in the County of
Lancaster, Blue Manufacturer, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention has for its object the giving of a brilliant polish to black lead
without the very large amount of friction now required to effect that object.
The invention consists in making the composition of-
First, graphite or "plumbago
Second, beeswax and
Third, turpentine.
"
or "black lead":
This combination can be varied to a considerable extent; thus, in place of
beeswax, other waxes, greases, mineral waxes and the like can be used, which will
give the peculiar polish or shine which polished wax does, and, in the place of
turpentine, other volatile menstrua in which beeswax is soluble can be used. The
whole is mixed together and preferably compressed into cakes or granules.
As regards quantities, these depend considerably on the material and also on the
blackness or silveriness required; the following five receipts have all been used
by me for various purposes, but I do not confine myself to them-
X oz. wax
XX
-
11
2
XXX
2
H
1
"
turpentine }
oz. wax
"
to 1 lb. 10 ozs. lead
turpentine } 1 lbs. lead
oz. wax
دو
turpentine to 14 lbs. lead
oz. wax
وو
turpentine }
Oz. wax
ני
"turpentine }
1 lb. 6 ozs. lead
2 lbs. lead.
[Price 8d.]

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A black lead compound consisting mainly or entirely of graphite and a wax
or its equivalent, such as described.
2. The manufacture of a commercial black lead by mixing together graphite,
waxy material such as described and a volatile solvent for that waxy material.
Dated this 17th day of February 1893.
a
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham and London, Patent Agents.