IMPROVEMENTS IN AND RELATING TO ENVELOPES OR WRAPPERS USED IN THE MANUFACTURE OF OIL AND OTHER CAKES
Year: 1878

page_text: LETTERS PATENT to Charles Speck Brittain and Harold King, both of
Liverpool, in the County of Lancaster, for the Invention of "IMPROVEMENTS
IN AND RELATING TO ENVELOPES OR WRAPPERS USED IN THE MANUFACTURE
OF OIL AND OTHER CAKES."
Sealed the 10th April 1879, and dated the 24th October 1878.
PROVISIONAL SPECIFICATION left by the said Charles Speck Brittain and
Harold King at the Office of the Commissioners of Patents on the 24th October
1878.
"
CHARLES SPECK BRITTAIN and HAROLD KING, both of Liverpool, in the County
of Lancaster. IMPROVEMENTS IN AND RELATING TO ENVELOPES OR WRAPPERS
USED IN THE MANUFACTURE OF OIL AND OTHER CAKES."
This Invention relates to a novel construction of combined envelope and wrapper
for the purposes of making oil and similar cakes.
It consists in an outside wrapper or case, which can be constructed of metal, mill-
board, or any other suitable material. Over the outside surface of the wrapper is
placed a series of ribs made of wood, paper, metal, or other material, and covered
by the ordinary bagging or other material sewn so as to enclose each rib in a kind
of pocket, from which they can be easily removed and replaced if necessary.
wrapper forms the ribs on the cake.
This
To use the apparatus it is placed on the moulding machine, preferably that for
which Mr. Brittain obtained Letters Patent on 12th April 1878, No. 1460. After
being compressed by this apparatus it is taken to the hydraulic or other press, and
there pressed in the ordinary manner between ordinary plain plates. This apparatus
will be found simple in construction and economical in working.

page_text: the said Charles Speck Brittain and Harold King in the Great Seal Patent
Office on the 23rd April 1879.
CHARLES SPECK BRITTAIN and HAROLD KING, both of Liverpool, in the County
of Lancaster. "IMPROVEMENTS IN AND RELATING TO ENVELOPES OR WRAPPERS
USED IN THE MANUFACTURE OF OIL AND OTHER CAKES."
This Invention relates to combined_envelopes and wrappers for use in the
extraction of oil by pressure from linseed and other oligeanous matters: Hitherto
-it-has-been customary to press the crushed seed or other material in bags or
wrappers placed between hairs, corrugated-plates,_and_the_like, quite apart and
distinct from the wrapper, and we are not aware that a combined envelope and-
wrapper has ever before been used.
Our combined evelope. and wrapper consists of an outside case or coat, which can
be of metal, millboard, or other suitable substance, but we prefer American cotton
duck. On this we place a series of ribs of wood or other tough material insoluble
in oil; hempen rope is a very good material for this purpose, and we now use it
almost exclusively. Over this again, forming the inside of the wrapper, is ordinary
woollen bagging.
The accompanying Drawing (Fig. 1 being a plan with part of woollen bagging
removed, and Fig. 2 section) shows a combined envelope and wrapper fifteen inches
wide by sixty long when new. The outside rope A is five-eighths of an inch, and
the ribs B in this case are formed by fifty-eight single folds of three-eighths of an
inch rope on each side the centre. The cross ropes are looped round the selvage rope.
Between each fold of cross rope the covers of cotton duck D and woollen bagging C
are tightly sewn together, enclosing the rope between them. A space E of two
inches clear of rope is shewn in the centre for the fold.
Sometimes instead of sewing the inside and outside envelopes together with the
rope or other bars between we weave the whole in one, the bars taking the place of
cross threads at stated intervals, or are woven in by any other of the well-
known modes.
The mode of using the envelope or wrapper is as follows:-It is placed on the
moulding machine, preferably that patented by Mr. Brittain the Twelfth day of
April 1878, No. 1460, and the requisite amount of oleaginous material measured.
out and compacted in it by the machine. It is then taken to the hydraulic (or
other) press and pressed without the use of hairs, corrugated plates, or the, like, the
embedded ropes forming the ribs on the cake, besides aiding in the extraction of the
oil by their capilliary channels.
We find this combined envelope and wrapper very economical on the following
grounds-First, it outlasts several ordinary wrappers; second, it is not as expensive
as the ordinary hair and wrapper; third, it can be got into a smaller compass in
the press, adınitting of a larger number of cakes being pressed at one operation.
Having now described our Invention, and the best mode known to us of carrying
it into effect, we wish it to be understood that what we believe to be new, and.
desire to protect under the herein-before in part recited Letters Patent is,―
First. The combined envelope or wrapper herein described, consisting of an
internal wrapper of (preferably) woollen bagging and the external envelope of cotton
duck, wood, iron, or other material used for envelopes, sewed or otherwise fastened
so as to form one piece with the internal wrapper and enclosing bars of wood, rope,
or other material for the purposes described, whether such bars form a part of or
are independent of the external envelope.
B

page_text: Second. The manufacture of envelopes for oil pressing with the ribs of a different
material or independent of the outer envelope, substantially as described.
In witness whereof, we, the said Charles Speck Brittain and Harold King,
have hereunto set our hands and seals, this Ninth day of April, in the year
of our Lord 1879.