IMPROVE- MENTS IN MATERIALS OR COMPOSITIONS FOR DESTROYING VERMIN ON SHEEP AND OTHER ANIMALS, AND FOR PROTECTING THEM THEREPROM
Year: 1860

page_text: LETTERS PATENT to Alexander McDougall, of Manchester, in the County
of Lancaster, Manufacturing Chemist, for the Invention of "IMPROVE-
MENTS IN MATERIALS OR COMPOSITIONS FOR DESTROYING VERMIN ON SHEEP AND
OTHER ANIMALS, AND FOR PROTECTING THEM THEREPROM."
Sealed the 12th April 1861, and dated the 15th October 1860.
PROVISIONAL SPECIFICATION left by the said Alexander McDougall at
the Office of the Commissioners of Patents, with his Petition, on the
15th October 1860.
I, ALEXANDER MCDOUGALL, of Manchester, in the County of Lancaster,
Manufacturing Chemist, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MATERIALS OR COMPOSITIONS FOR DESTROYING VERMIN ON
SHEEP AND OTHER ANIMALS, AND FOR PROTECTING THEM THEREFROM," to be as
follows:-
My Invention consists in the use of the heavy oil of tar or dead oil, or crude
carbolic acid, as it is sometimes called, or creosote, obtained in the destructive
distillation of the carbonaceous substances. These materials I treat with an
alkali, and add a saponifiable fatty substance.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alexander McDougall in the Great Seal Patent Office on the
15th April 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
MODOUGALL, of Manchester, in the County of Lancaster, Manufacturing
Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of October, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-fourth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Alexander McDougal, Her special license that I, the said Alexander
McDougall, my executors, administrators, and assigus, or such others as I, the
said Alexander McDougall, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland
the Channel Islands, and Isle of Mau, an Invention for "IMPROVEMENTS IN
MATERIALS OR COMPOSITIONS FOR DESTROYING VERMIN ON SHEEP AND OTHER
ANIMALS, AND FOR PROTECTING THEM THEREFROM," upon the condition (amongst
others) that I, the said Alexander McDougall, by an instrument in writing
under my hand and seal, should particularly describe and ascertain the nature
of the said Invention, and in what manner the saine was to be performed,
and cause the same to be filed in the Great Scal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Alexander McDougall, 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, that is to say :-
My Invention consists in the use of the heavy oil of tar or dead oil, or crude
carbolic acid, as it is sometimes called, or creosote, obtained in the destructive
distillation of carbonaceous substances. These materials I treat with an
alkali, and add a saponifiable fatty substance.
1
And in order that iny Invention may be fully understood I will proceed to
describe a method by which I carry the same into practical operation.
take crude carbolic acid, or heavy oil of tar, or other products obtained from
the distillation of tar, which, like those mentioned, have a greater specific
gravity and a higher boiling point than water, and act upon it with caustic

page_text: soda or potash so as to render it soluble or mixable with water. This
mixture is heated (say to about the boiling point of water) and agitated, so
that all the parts may be equally acted upon; I then add to it fat, tallow, or
other saponifiable substance, and give it the consistency of a soft paste, in
which condition it is suitable for use. The proportions may be varied, but
those I prefer are two parts by weight of the carbolic acid, one part by weight
of caustic soda of 50° Twaddle, and one part by weight of tallow, fat, or other
saponifiable substance. The composition thus prepared if not to be used for
salving may be dissolved in water and used as a bath, in which the sheep or
other animals are to be dipped, or it may be used by "pouring" or otherwise,
as is well known to those acquainted with the management of stock requiring
such treatment.
Having thus described and ascertained the nature of my said Invention,
and the manner of carrying the same into effect, I desire it to be understood
that I claim as secured to me under the above in part recited Letters
Patent,-
-
Firstly, the use of carbolic acid in the preparation of materials or com-
positions for destroying vermin on sheep and other animals, and for protecting
them therefrom.
Secondly, the use of alkalies and tallow, or other saponifiable substance, in
combination with the above products when used for the purposes above set
forth.
In witness whereof, I, the said Alexander McDougall, have hereunto set
my hand and seal, this Thirteenth day of April, in the year of our
Lord One thousand eight hundred and sixty-one.
A. M'DOUGALL. (L.S.)

page_text: Filed 12th August 1504.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
MCDOUGALL, of Manchester, in the County of Lancaster, Manufacturing.
Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of October, One thousand eight
hundred and sixty, did, for Herself, Her heirs and successors, give and grant
unto me, the said Alexander McDougall, Her special license that I, the said
Alexander McDougall, myexecutors, administrators, and assigns,orsuch others
as I, the said Alexander McDougall, my executors, administrators, or assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the time therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "Im-
PROVEMENTS IN MATERIALS OR COMPOSITIONS FOR DESTROYING VERMIN ON SHEEP
AND OTHER ANIMALS, AND FOR PROTECTING THEM THEREPROM," upon the condition
(amongst others) that 1, the said Alexander McDougall, by an instrument in
writing under my hand and seal, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent. And whereas I, the said Alexander McDougall, in pursuance of the
said condition in the said Letters Patent contained did, by a Specification,

page_text: being an instrument in writing under my hand and seal, particularlydescribe and
ascertain the nature of my said Invention, and in what manner the same is to
be performed, and did cause the same instrument to be filed in the Great Seal
Patent Office on the Fifteenth day of April, One thousand eight hundred and
sixty-one. And whereas since the filing of the said Specification I have been
advised that there are doubts whether the claim to the use of carbolic acid in
the preparation of materials or compositions for destroying vermin on sheep or
other animals, and for protecting them therefrom, as set forth in the first claim
of the said Specification, is not too wide and general; and I am therefore
desirous to disclaim the first claim of the said Specification, and otherwise to
alter the said Specification in manner herein-after shewn.
NOW KNOW YE. THEREFORE, that I, the said Alexander M Dougall, by
and with the leave of Her said Majesty's Solicitor-General, do hereby disclaim
the first claim of my said Specification, as herein-before mentioned. And by
and with the leave aforesaid, and for the reason aforesaid, and for the purpose
of expunging the said claim from the said Specification, I do hereby alter the
said Specification by striking out the following words, which occur on the
third page of the print of the said Specification, printed by the Queen's
Printers, and published at the great Seal Patent Office, namely:-
"Firstly, the use of carbolic acid in the preparation of materials or com-
positions for destroying vermin on sheep and other animals, and for protecting
them therefrom. Secondly," which words are in the seventeenth, eighteenth,
nineteenth, and twentieth lines of the said third page of the said print.
And in order that it may be clearly understood what is the Invention which
I now consider to be secured to me by the herein- before in part recited
Letters Patent, I shall proceed to repeat (omitting preamble and testing
clause), my said Specification as proposed to be amended by this present
Disclaimer and Memorandum of Alteration, as follows:-
NOW KNOW YE, that I, the said Alexander McDougall, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, that is to say:
My Invention consists in the use of the heavy oil of tar or dead oil, or
crude carbolic acid, as it is sometimes called, or creosote, obtained in the
destructive distillation of carbonaceous substances. These materials I treat
with an alkali, and add a saponifiable fatty substance.
And in order that my Invention may be fully understood I will proceed to
describe a method by which I carry the same into practical operation. I
take crude carbolic acid or heavy oil of tar, or other products obtained from

page_text: the distillation of tar, which, like those mentioned, have a greater specific
gravity and a higher boiling point than water, and act upon it with caustic
soda or potash so as to render it soluble or mixable with water. This mixture
is heated (say to about the boiling point of water) and agitated, so that all
the parts may be equally acted upon; I then add to it fat, tallow, or other
saponifiable substance, and give it the consistency of a soft paste, in which cou-
dition it is suitable for use. The proportions may be varied, but those I
prefer are two parts by weight of the carbolic acid, one part by weight of
caustic soda of 50° Twaddle, and one part by weight of tallow, fat, or other
saponifiable substance.
The composition thus prepared, if not to be used for salviug, may be
dissolved in water and used as a bath, in which the sheep or other animals are
to be dipped; or it may be used by "pouring" or otherwise, as is well known
to those acquainted with the management of stock requiring such treatment.
Having thus described and ascertained the nature of my said Invention, and
the manner of carrying the same into effect, I desire it to be understood that
I claim as secured to me under the above in part recited Letters Patent,―
The use of alkalies and tallow or other saponifiable substance in combi-
uation with the above products when used for the purposes above set forth.
And I, the said Alexander McDougall, do further declare that the above
written Disclaimer and Memorandum of Alteration are not nor is either of
them, nor is any part thereof respectively, intended to extend the exclusive
right granted by the said Letters Patent, and that these Presents shall not
extend the said exclusive right in any way whatsoever.
In witness whereof, I, the said Alexander McDougall, have hereunto set
my hand and seal, the Nineteenth day of July, One thousand eight
hundred and sixty-four.
Temple, August 11th, 1864.

page_text: MCDOUGALL'S DISCLAIMER AND MEMORANDUM OF
ALTERATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
MCDOUGALL, of Manchester, in the County of Lancaster, Manufacturing
Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of October, One thousand eight
hundred and sixty, did, for Herself, Her heirs and successors, give and grant
unto me, the said Alexander McDougall, Her special license that 1, the said
Alexander McDougall, my executors, administrators, and assigns, or such others
as I, the said Alexander McDougall, my executors, administrators, or assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "IM-
PROVEMENTS IN MATERIALS OR COMPOSITIONS FOR DESTROYING VERMIN ON SHEEP
AND OTHER ANIMALS, AND FOR PROTECTING THEM THEREFROM," upon the condition
(amongst others) that I, the said Alexander McDougall, by an instrument in
writing under my hand and seal, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent. And whereas I, the said Alexander McDougall, in pursuance of the
said condition in the said Letters Patent contained did, by à Specification,

page_text: being an instrument in writing under my hand and seal, particularly describe and
ascertain the nature of my said Invention, and in what manner the same is to
be performed, and did cause the same instrument to be filed in the Great Seal
Patent Office on the Fifteenth day of April, One thousand eight hundred and
sixty-one. And whereas since the filing of the said Specification I bave been
advised that there are doubts whether the claim to the use of carbolic acid in
the preparation of materials or compositions for destroying vermin on sheep or
other animals, and for protecting them therefrom, as set forth in the first claim
of the said Specification, is not too wide and general; and I am therefore
desirous to disclaim the first claim of the said Specification, and otherwise to
alter the said Specification in manner herein-after sbewn.
NOW KNOW YE, THEREFORE, that I, the said Alexander McDougall, by
and with the leave of Her said Majesty's Solicitor-General, do bereby disclaim
the first claim of my said Specification, as herein-before mentioned.
And by
and with the leave aforesaid, and for the reason aforesaid, and for the purpose
of expunging the said claim from the said Specification, I do hereby alter the
said Specification by striking out the following words, which occur on the
third page of the print of the said Specification, printed by the Queen's
Printers, and published at the Great Seal Patent Office, namely:-
66
Firstly, the use of carbolic acid in the preparation of materials or com-
positions for destroying vermin on sheep and other animals, and for protecting
them therefrom. Secondly," which words are in the seventeenth, eighteenth,
nineteenth, and twentieth lines of the said third page of the said print.
And in order that it may be clearly understood what is the Invention which
I now consider to be secured to me by the herein-before in part recited
Letters Patent, I shall proceed to repeat (omitting preamble and testing
clause), my said Specification as proposed to be amended by this present
Disclaimer and Memorandum of Alteration, as follows:-
NOW KNOW YE, that I, the said Alexander McDougall, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, that is to say :-
My Invention consists in the use of the heavy oil of tar or dead oil, or
crude carbolic acid, as it is sometimes called, or creosote, obtained in the
destructive distillation of carbonaceous substances. These materials I treat
with an alkali, and add a saponifiable fatty substance.
And in order that my Invention may be fully understood, I will proceed to
describe a method by which I carry the same into practical operation. I
take crude carbolic acid or heavy oil of tar, or other products obtained from

page_text: the distillation of tar, which, like those mentioned, have a greater specific
gravity and a higher boiling point than water, and act upon it with caustic
soda or potash so as to render it soluble or mixable with water. This mixture
is heated (say to about the boiling point of water) and agitated, so that all
the parts may be equally acted upon, I then add to it fat, tallow, or other
saponifiable substance and give it the consistency of a soft paste, in which con-
dition it is suitable for use. The proportions may be varied, but those I
prefer are two parts by weight of the carbolic acid, one part by weight of
caustic soda of 50° Twaddle, and one part by weight of tallow, fat, or other
saponifiable substance.
The composition thus prepared, if not to be used for salving, may be
dissolved in water and used as a bath, in which the sheep or other animals are
to be dipped; or it may be used by "pouring" or otherwise, as is well known
to those acquainted with the management of stock requiring such treatment.
Having thus described and ascertained the nature of my said Invention, and
the manner of carrying the same into effect, I desire it to be understood that
I claim as secured to me under the above in part recited Letters Patent,-
The use of alkalies and tallow or other saponifiable substance in combi-
nation with the above products when used for the purposes above set forth.
And I, the said Alexander McDougall, do further declare that the above
written Disclaimer and Memorandum of Alteration are not nor is either of
them, nor is any part thereof respectively, intended to extend the exclusive
right granted by the said Letters Patent, and that these Presents shall not
extend the said exclusive right in any way whatsoever.
In witness whereof, I, the said Alexander McDougall, have hereunto set
my hand and seal, the Nineteenth day of July, One thousand eight
hundred and sixty-four
0
I hereby grant my fiat, giving leave to the above-named Alexander
McDougall to file in the Great Seal Patent Office, with the Specification to
which the same relates, the above-written Disclaimer and Memorandum of