Year: 1888

page_text: Date of Application, 2nd May, 1888
Complete Specification Left, 4th Feb., 1889
Complete Specification Accepted, 9th Mar., 1889
I JAMES ROBERT DRY of 4 Agnes Street, Burdett Road, County of Middlesex,
Engineer, do hereby declare the nature of my said invention to be as follows:-
This invention relates to a novel method of operating on or preparing Jute or
Rhea cane either in a green or dry state, but preferably in a dry state soon after being
gathered.
For the purpose of my invention I take the required quantity of cane and place
them crosswise alternately in layers in a crate or skeleton frame. This charged crate
I lower into boiling soda liquor and keep it there for about 15 minutes; the crate is
then raised and the soda liquor allowed to drain, after which I transport the crate
to another boiler containing soapy water, boiling, and after about 2 hours I remove
the crate and immerse it in a cold soda liquor tank giving it a series of dips therein.
I prefer the soda liquor in this tank to be of about the same density or strength as
that of the first mentioned tank, this being determined by the quality or condition of
the cane under treatment.
This dipping operation, or what I term rinsing, removes the soap and brings the
cane into a condition for immersion into a chloride of lime liquor in which it is
allowed to remain from 8 to 10 hours until the "Epidermis" becomes sufficiently
white.
The cane is then washed in clean cold water and to ensure that all saponaceous
matter be removed the cane can be dipped in a sulphuric acid bath for that purpose.
1000
H. GARDNER,
166, Fleet Street, London,
Agent for the said J. R. Dry.

page_text: "
I, JAMES ROBERT DRY, of 4 Agnes Street, Burdett Road; County of Middlesex,
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 relates to a novel method of operating on Jute or Rhea (Ramie) in
a fresh state and soon after being gathered.
For the purpose of my invention, the outer bark or covering of the canes or stems,
.consisting of fibre with gummy or resinous matter is peeled or stripped off in
ribbons," and these ribbons are laid in crates or frames in alternate layers,
crosswise.
;
6
The crate (with its contents) is then placed in a tank or vessel containing a strong
solution of soda and brought to the boiling point. The material is allowed to remain
in this bath (without boiling) for about 15 minutes. The crate is then raised and the
soda liquor allowed to drain, after which I transport the crate to another vessel con-
taining a solution of saponaceous material, preferably yellow soap and black or soft
soap in equal quantities, in the proportion of about 1 lb. of soap to every 5 lbs. of
ribbons. The contents of the crate are then boiled for from 1 to 3 hours.
The actual quantities of soda and of saponaceous material employed in the above
treatment, and the exact length of time occupied in the bath and in the boiling in
soapy water will depend upon the state of maturity and the freshness of the
" ribbons."
After this boiling, the material is steeped and rinsed in a bath of soda solution,
which may be the soda tank, first referred to, and then dipped in a weak solution of
sulphuric acid, partly with the object of neutralizing the soda, and partly with the
object of preparing it for bleaching, if necessary, in a weak solution of Chloride of
Lime, in which it would be allowed to remain for from half an hour to four hours
according to the maturity of the fibre and according to the degree of whiteness
desired.
Jute requires a longer treatment than Khea or Ramie.
Finally the material is thoroughly rinsed in cold water, and afterwards dried either
by exposure to the air or by artificial heat.
The fibre thus treated is freed from all gummy, resinous, and other matter and fairly

page_text: separated so as to be ready for the subsequent processes of manufacture into textile
fabrics.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I'
claim is :-
The novel method of operating on Jute and Rhea as hereinbefore described for the
purposes set forth.