Improvements in Varnish, and in the Mode of Manufacturing the same.
Year: 1896

page_text: Date of Application, 20th Apr., 1896-Accepted, 23rd May, 1896
COMPLETE SPECIFICATION.
Improvements in Varnish, and in the Mode of Manufacturing
the same.
I EDWARD WILLIAM BARNSLEY. of Century Varnish Works, Western
Road Birmingham in the County of Warwick, Manufacturer, do hereby declare
the nature of my said invention and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement :-
My invention has for its object improvements in varnish and in the mode of
manufacturing the same by which I obtain a very superior article suitable for
high class purposes.
I will explain enumerate the liquids and materials used in the composition of my
new varnish as well as the particular mode I have found to be successful in mixing
and manufacturing the same, though it will be clearly understood that both in
regard to quantities of material and liquids as well as the procedure that some
variations may be made without departing substantially from iny invention.
The approximate quantities and procedure which I have found to be suitable
are as follows.
Ae a preliminary-Place 300 gallons of refined pure Baltic linseed oil (that has
been previously tanked in a raw state for two years) into an oil furnace made of
copper, suspend in the furnace an openwork basket inade of galvanized iron wire,
into this place 60 lbs. of finest selected pale lump Turkey uinber then lower the
same just under the surface of the oil: start boiling the oil and raise gradually
during the first day up to 450 degrees. Next day pump out of the furnace into a
tank 200 gallons of the oil which is then ready for use and is called "prepared
thin umber oil." Then gradually raise the heat of the 100 gallons left in the
furnace up to 550 not exceeding 580 degrees using a proper gauge in the oil to
test the heat, this finishes what is called the prepared thick umber oil, and should
be tanked off ready for use.
Next Place 84 lbs. finest quality Africau fossil gun animi in au ordinary gum
running varnish pot, run the gum to a liquid very carfully over a fierco fire, as soon
as thoroughly dissolved, add slowly 15 gullons of the prepared thin number oil and
when properly amalgamated tako the pot off the fire and thin contents with
18 gallons of genuine American turpentine pour the whole out of the varnish pot
into a large store tauk and repeat the process until the quantity of varnish required
is made. When the whole is cold sprinkle iuto the tank at the rate of 12 lbs. of
powdered magnesia to every 100 gallons of varnish and keep agitating the whole of
the contents of the tank for 7 or 8 hours the tank must now be closed for six
months. After this time has expired carfully pump off into a clean tank (which
must stand in a heated store room). Aftor this add to each 50 gallons of varnish
in the tank 5 gallons of the prepared thick umber oil and then sprinkle into the
tank at the rate of 12 lbs. of powdered lithrage to every 100 gallons of varnish and
keep agitating the whole of the contents of the tank for 7 or 8 hours the tank
must now be closed again for another 6 months and the store room kept constantly
at a temperature of 90 to 95 degrees when it will be properly matured for sending
out for use.
Having now particularly described and ascertained the nature of my said inven-
ion and in what manner the same is to be performed I declare that what I -
claim is :-
The improvements in varnish and in the mode of manufacturing the
samo

page_text: substantially as herein before explained as to the quantities in the mixing and the
mode of procedure in the manufacture of the same.
Dated this 18th day of April 1896.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.