The Cultivation and Manufacture of TeaMoney, Edward
Science
The Cultivation and Manufacture of Tea
Money, Edward
Tea
I only know of one other Tea rolling-machine, which is Nelson’s. It
does not profess to do more than _prepare_ the green leaf for rolling,
which, as stated above, is, I think, all that any machine will ever do.
I have never seen it working, but it appears simple, being nothing more
than a mangle. The leaf is placed in bags, and then compressed under
rollers attached to a box, weighted with stones. The prospectus states,
it will prepare 80 lbs. green leaf in fifteen minutes, and that one
man can then finish as much of such prepared leaf in three minutes as
would occupy him twelve minutes if the same had not been prepared. I
see nothing unlikely in this. The machine, though inferior to Kinmond’s
in its arrangement, _ought_ to be cheap enough to bring it within the
reach of all.[43]
I have already spoken of one of McMeekin’s inventions. His
chest-of-drawers for firing Tea is, I think, superior to his batten
table. It is now so well known, and in such general use, that I
shall describe it very shortly. It is nothing more than a low
chest-of-drawers, or trays fitted in a frame one above the other, the
bottom of each tray being fine iron wire, so that the heat of the
charcoal, in the masonry receptacle over which it is placed, ascends
through all the drawers and thus dries or fires a large quantity of
“roll” at the same time. By the old plan, a single wicker sieve was
inserted inside a bamboo frame called a “dhole,” which was placed over
a charcoal fire made in a hole in the ground. On the sieve the roll was
placed, and all the heat, after passing through this _one_ sieve, was
wasted. Mr. McMeekin’s idea was to economise this heat by passing it
through several drawers.
Most planters use these drawers, and there is no doubt in the space
saved, and the economy of heat: it is a great step in advance over the
old barbarous method, where not only was the heat wasted after passing
through _one_ sieve, but a great deal was lost through the basket work
of the “dhole” itself.
Still I do not advocate four, still less five drawers one above the
other. I think the steam ascending from the lower drawers must, more
or less, injure the roll in the upper ones. I confine myself to two,
and even then in the top tray leave a small circular space vacant by
which the steam from the lower drawer can escape. I utilize the heat
that escapes, partially, by placing “dhallas” in tiers above, with roll
in them. These are supported by iron rods let into the wall, and are
useful not only for partly drying the roll, but also for withering leaf
when there is no sun.
Public-domain text, read in full here on John Shaqi.
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