Improvements in the Treatment of Linseed Oil.
Year: 1893

page_text: Date of Application, 17th Apr., 1893
Complete Specification Left. 10th Jan.. 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Treatment of Linseed Oil.
We, JAMES EDWARD BEDFORD of Cardigan Road in the City of Leeds, and
CHARLES SAMUEL BEDFORD of Broomleigh Headingley in the City of Leeds,
Chemists do hereby declare the nature of this invention to be as follows:-
This invention has for its object the manufacture of a semi solid or solid material
from raw or boiled linseed oil by subjecting the oil whilst heated & in a fine state
of division to the action of atmospheric air.
For this purpose we treat the oil with or without addition of dryers in a
horizontal cylindrical steam jacketted vessel provided with a central & horizontal
shaft fitted with arms or beaters and capable of being driven at a high speed.
Inlet & outlet pipes are also provided by means of which a strong current of air
can be maintained through the apparatus. The charge of oil should only half fill
the apparatus & after it has been heated by means of the steam jacket assisted by
rapid agitation a current of air is turned into the space above the normal surface
of the oil and which by the agitation is filled with oil spray.
The temperature gradually rises as oxygen is absorbed and it should be governed
within working limits by the introduction of cold water to the jacket. Good
results are obtained when the temperature is maintained between 120° & 160° C.
but higher temperatures may be used. Samples of the product are taken from
time to time & when the desired consistency has been obtained the charge is run
or scraped out into shallow pans to cool.
Dated this 17th day of April 1893.
JAMES E. BEDFORD.
CHAS. S. BEDFORD.
COMPLETE SPECIFICATION.
Improvements in the Treatment of Linseed Oil.
We, JAMES EDWARD BEDFORD of Cardigan Road in the City of Leeds and
CHARLES SAMUEL BEDFORD of Broomleigh Headingley in the City of Leeds,
Chemists 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 has for its object the manufacture of a semi solid or solid material
from raw or boiled linseed oil by subjecting the oil whilst heated and in a fine
state of division to the action of atmospheric air.
For this purpose we treat the oil with or without addition of dryers in a
horizontal cylindrical steam jacketted vessel provided with a central and horizontal
shaft fitted with arms or beaters and capable of being driven at a high speed.
Inlet and outlet pipes are also provided by means of which a strong current of air
can be maintained through the apparatus. The charge of oil should only half fill
the apparatus & after it has been heated by means of the steam jacket assisted by
rapid agitation a current of air is turned into the space above the normal surface
of the oil and which by the agitation is filled with oil spray.
The temperature gradually rises as oxygen is absorbed and it should be
governed within working limits by the introduction of cold water to the jacket.
D

page_text: Good results are obtained when the temperature is maintained between 120° &
160° C. but other temperatures may be used. Samples of the product are taken
from time to time & when the desired consistency has been obtained the charge
is run or scraped out into shallow pans to cool.
The accompanying drawings show the apparatus we employ for the oxidation
of linseed by means of air. Fig. 1 side view Fig. 2 end view:-A wrought iron
cylindrical vessel provided with water jacket B and cast iron ends with manholes I.
C is a central shaft fitted with pulley D & provided with arms. The vessel is set
upon trunnions N carried by the A frames O. H safety valve G pressure gauge
F charging cock P, P, air inlets Q air outlet J thermometer well K sampling
cock M L treacle valve T water outlet R water inlet S lug for raising the end
U steam inlet.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The manufacture of thickened semi solid or solid material from linseed oil
by subjecting linseed oil either raw or after addition of dryers or after boiling
alone or with dryers to the action of a strong current of air whilst the oil is in a
finely disintegrated condition as described.
2. The use and application of the apparatus for the manufacture of oxidized
linseed oil by means of air consisting of a steam jacketted horizontal vessel provided
with a central horizontal revolving agitator and means for producing a strong
current of air in contact with the oil whilst it is maintained in a fiuely divided
state by means of the revolving agitator and at an elevated temperature.
JAMES E. BEDFORD.
CHAS. S. BEDFORD.