An IMPROVED BAG FOR PHOSPHATES, SALTPETRE, GUANO, AND OTHER LIKE. MATERIALS
Year: 1874

page_text: LETTERS PATENT to Benjamin Roland Croasdale, of Philadelphia,
Pennsylvania, United States of America, now of No. 8, South-.
ampton Buildings, London, Chemist, for the Invention of "An
IMPROVED BAG FOR PHOSPHATES, SALTPETRE, GUANO, AND OTHER LIKE.
MATERIALS."
Sealed the 21st August 1874, and dated the 23rd June 1874.
PROVISIONAL SPECIFICATION left by the said Benjamin Roland
Croasdale at the Office of the Commissioners of Patents, with
his Petition, on the 23rd June 1874.
I, BENJAMIN ROLAND CROASDALE, of Philadelphia, Pennsylvania,
United States of America, now of No. 8, Southampton Buildings,
London, Chemist, do hereby declare the nature of the said Invention
"AN IMPROVED BAG FOR PHOSPHATES, SALTPETRE, GUANO, AND OTHER LIKE
MATERIALS," to be as follows:-
for
My Invention relates to an improved bag for containing phosphates,
superphosphates, saltpetre, guano, nitrate of soda, and other like

page_text: materials. The want of a bag for this purpose has been long felt, and
attempts have been made to supply this want, but hitherto no bag has
been produced capable of resisting the destructive effects of the acids,
the ammonia, and the moisture of the said phosphates or other
substances.
In practising my said Invention I make the bags of canvas, cotton
cloth, jute cloth, or other suitable textile fabric, and of any desired form.
and size; and I saturate them with hydrate of lime by immersing them
in a mixture of lime and water; this mixture is preferably of the
consistency of new cream.
In many instances it is desirable that the lime should have the same
or nearly the same colour as the bags, I therefore add to the aforesaid
mixture suitable colouring matter, for instance, if the bag is made. of
canvas I add to the lime mixture a small quantity of yellow ochre.
The said bags after being saturated as above described are immersed
in oil, or in a compound consisting of about three parts of oil and one
part of paraffine. After immersion in this oil or compound the bags are
immediately passed between squeezing rollers.
Instead of applying the oil or oily mixture or compound separately,
as above described, I may mix the oil or oily matter with the water used:
for slaking the lime in the proportion of about one pint of oil to three
gallons of water; but I prefer to apply the oil or oily mixture separately,
as above described.
It is obvious that I may apply the lime and oil or oily compound to
the fabric before forming the bags thereof, but I prefer the method of a
first making the bags and then treating them with the lime and oil as
above described.
SPECIFICATION. in pursuance of the conditions of the Letters Patent,
filed by the said Benjamin Roland Croasdale in the Great Seal
Patent Office on the 19th December 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BENJAMIN
ROLAND CROASDALE, of Philadelphia, Pennsylvania, United States of
America, now of No. 8, Southampton Buildings, London, Chemist, send
greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of June, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
6 give and grant unto me, the said Benjamin Roland Croasdale, Her
special licence that I, the said Benjamin Roland Croasdale, my
executors, administrators, and assigns, or such others as I, the said
Benjamin Roland Croasdale, my executors, administrators, and
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 "AN IMPROVED BAG FOR PHOSPHATES,
SALTPETRE, GUANO, AND OTHER LIKE MATERIALS," upon the condition (amongst
3 others) that I, the said Benjamin Roland Croasdale, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed and cause the same to be filed in the Great Seal Patent Office,
within six calender months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Benjamin Roland Croasdale,
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 relates to an improved bag for containing phosphates,
superphosphates, saltpetre, guano, nitrate of soda, and other like
materials. The want of a bag for this purpose has been long felt, and
attempts have been made to supply this want, but hitherto no bag has
been produced capable of resisting the destructive effects of the acids,
the ammonia, and the moisture of the said phosphates or other
substances.
In practising my said Invention I make the bags of canvass, cotton
cloth, jute cloth, or other suitable textile fabric, and of any desired form
and size. Then I saturate the said bags with hydrate of lime by
immersing them in a mixture of lime and water. I prefer that this
mixture should have the consistency of new cream.

page_text: In many instances it is desirable that the lime should have the same
or nearly the same colour as the bags, I therefore add to the above said
mixture suitable colouring matter, for instance, if the bag is madė
of canvass I add to the lime mixture a small quantity of yellow ochre.
The said bags after being saturated with hydrate of lime, as above
described are immersed in oil, or in a compound consisting of about three
parts of oil and one part of paraffine. After immersion in this oil or
compound the bags are immediately passed between squeezing rollers,
and will then be ready for use.
Instead of applying the oil or oily mixture or compound separately, 1
ás above described, I may mix the oil or oily matter with the water used
for slaking the lime in the proportion of about one pint of oil to three
gallons of water; but I prefer to apply the oil or oily mixture separately,
as above described.
It is obvious that I may apply the lime and oil or oily compound to 1
the fabric before forming the bags thereof, but I prefer the method of
first making the bags and then treating them with the lime and oil as
above described.
Having thus fully described my said Invention, and the manner of
performing the same, I wish it understood that I claim, a bag formed 2
of a textile fabric treated with hydrate of lime, and with oil, or a
compound of oil and paraffine, as herein set forth and for the purpose
specified.
In witness whereof, I, the said Benjamin Roland Croasdale, have
.
hereunto set my hand and seal, the Twenty-third day of June, 2
in the year of our Lord One thousand eight hundred and seventy-
four.
TYTT
TAT
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