An Improved Sheep Dip.
Year: 1893

page_text: Date of Application, 10th Feb., 1893
Complete Specification Left, 19th July, 1893-Accepted, 19th Aug., 1893
PROVISIONAL SPECIFICATION.
An Improved Sheep Dip.
I, ALEXANDER ROBERTSON of Oban in the County of Argyle, Manufacturing
Chemist do hereby declare the nature of this invention to be as follows:-
This invention for an improved sheep dip has for its object to produce a paste
which shall contain active insecticides and be freely soluble in cold water; and
consists of a mixture of tar acids and arsenic combined with substances which have
a waterproofing effect on the fleece, are soluble in water, and which, when combined
with hellebore, tobacco, and sulphur constitutes an effectual preventive against, and
remedy for " "Aly."
The following are the constituents of which my dip is composed, and the
proportions in which I prefer to use them viz. :-
Take 3 parts of pine resin and 1 part grease, melt, and add 6 parts of tar acid
oil (which contains both carbolic and crisylic acid and 25% of tar acids) and
2 parts carbolic acid such as contains 95% of tar acids. To this mixture is added
2 parts of white' arsenic dissolved in 14 parts soda lye or an equivalent of yellow
sulphide of arsenic. The result is a carbolic and other tar acid mixture with
arsenic, suitable for sheep dipping, soluble in cold water and containing the combined
strength of a simple "carbolic dip" and "arsenical dip."
For preventing the fly striking in summer and for some other purposes, I
combine the above mixture with sulphur, tobacco powder, and hellebore, adding
5 lbs. of the latter mixture to 15 lbs. of the former soluble mixture of carbolic acid
and other tar acid with arsenic, and a suitable quantity of water to make a bath
for sheep.
Dated this 10th day of February 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
An Improved Sheep Dip.
I, ALEXANDER ROBERTSON, of Oban in the County of Argyle, Manufacturing
Chemist, 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 for an improved sheep dip has for its object to produce a fluid
which shall contain active insecticides, be freely soluble in cold water, and suitable
for use in preparing a bath or dip, and which shall contain the full proportion of
arsenic usually employed for a simple arsenical dip and also the full proportion of
tar acids necessary for a simple carbolic dip for sheep; and consists of a mixture
of tar acids and arsenic combined with substances which have a waterproofing effect
on the fleece, soluble in cold water and which, when combined with hellebore,
tobacco and sulphur constitutes an effectual preventative against and remedy
for "fly."
The following are the constituents of which my dip is composed and the
proportions in which I prefer to use them viz. :—
Take 3 parts of pine resin and 1 part grease, melt, and add 6 parts of tar acid
oil which contains 25% of tar acids (mainly carbolic and cresylic acid) and
2 parts carbolic acid such as contains 95% of tar acids. To this mixture is added
2 parts of white arsenic dissolved in 1 parts soda lye or an equivalent of yellow
[Price 8d.1

page_text: sulphide of arsenic. The result is a carbolic and other tar acid mixture with
arsenic, suitable for sheep dipping, soluble in cold water and containing the
combined strength of a simple "carbolic dip" and "arsenical dip."
For preventing the fly striking in summer, and for some other purposes, I
combine the above mixture with sulphur, tobacco powder, and hellebore, in the
proportions of flowers of sulphur 3 lbs., tobacco powder 1 lb. and hellebore 1 lb.
adding 5 lbs. of the latter mixture to 15 lbs. of the former soluble mixture of
carbolic acid and other tar acid with arsenic, and a suitable quantity of water to
make a bath for sheep.
By means of the said fluid a solution is made containing active insecticides in the
form of tar acids and arsenic, the tar acids having the effect of coagulating
albumen, of which sheeps parasites are largely composed, and the arsenic having a
continuous poisonous effect on the progeny.
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 fluid sheep dip compound comprising carbolic and other tar acids in com-
bination with arsenic dissolved in soda lye or yellow sulphide of arsenic, and
pine resin and grease, compounded substantially in the manner and proportions
described.
2. The fluid compound set forth in Claim 1 in combination with hellebore,
tobacco powder and sulphur substantially as described and for the purpose
specified.
· Dated this 19th day of July 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.