IMPROVEMENTS APPARATUS FOR MAKING in the County of Middlesex COFFEE, TEA, AND OTHER BEVERAGES, PARTLY APPLICABLE TO COOKING PURPOSES GENERALLY
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by Charles Denton Abel at the Office
of the Commissioners of Patents on the 2nd December 1882. A communica-
tion to him from abroad by Bruno Harrass of Böhlen near Grossbreitenbach,
Thüringia, in the German Empire
CHARLES DENTON ABEL of N° 28 Southampton Buildings Chancery Lane,
IN
"IMPROVEMENTS APPARATUS FOR MAKING
in the County of Middlesex
COFFEE, TEA, AND OTHER BEVERAGES, PARTLY APPLICABLE TO COOKING PURPOSES
GENERALLY A communication to him from abroad by Bruno Harrass of Böhlen
near Grossbreitenbach, Thüringia, in the German Empire
"
This invention relates to apparatus for making coffee and tea wherein the parts
containing the water to be heated and the tea or coffee grains to be acted upon
thereby are contained in separate vessels made principally of glass, so that the
action of the apparatus can be readily observed and the proper cleansing thereof be
insured, while the tea or coffee grains are also contained in a receptacle separate
from that containing the beverage. For these purposes the apparatus is constructed
as follows. A cylinder of glass is fitted with its lower end in an annular groove
formed on the outer circumference of a circular plate that constitutes the bottom of
the vessel, the said groove being partly filled with a suitable packing material such
as asbestos fibre or paper that will render the joint water tight. The upper end of
the cylinder is fitted into a similar annular groove with packing formed on a ring
shaped piece which is tied to the bottom plate by tie bolts and a clamping ring.
The inner edge of the upper ring has a screw thread formed on it and into it is
screwed a cover that closes the upper end of the cylinder. The before mentioned
annular grooves are made of sufficient width to allow the glass cylinder to expand
and contract freely therein. By unscrewing the tiebolts the parts can be readily
separated for cleansing purposes. Upon the top cover of the above described
vessel, which serves for heating the water for making the coffee or other beverage,
is placed the can or receptacle for the coffee when made. This has a large sized
tube projecting upwards from its bottom, and open at top, and within this tube a
second smaller tube projects upward from the cover of the water vessel, such tube
also being open at top. The top of the receptacle for the beverage is closed by a
deep cover made of glass and constituting the receptacle for the coffee grains or
tea leaves from which the beverage is to be made. Projecting centrally from the

page_text: top of this cover is a small tube having holes near the top and having also a
perforated shield just below the said holes. The cover being inverted, the part
above the shield is filled with the coffee grains &c and it is then closed at top by
another perforated shield which is secured by screwing a second small tube
with a projecting flange on to the end of the tube of the cover. The cover being
thus closed, it is turned down again and the small tube projecting downwards from
it is inserted into the tube projecting up from the water vessel and the cover is
lowered until it seats upon the receptacle for the beverage, when its small tube will
have descended nearly to the bottom of the water vessel, while the beforementioned
flange thereon will rest upon and close the top of the tube of the water vessel in a
steam tight manner. The water in the latter being now heated by a lamp below,
it will, as soon as it attains the boiling point, be forced up the small tube leading
to the top of the cover, where it will issue through the small side holes and flow
through the top perforated disc among the charge of coffee grains or tea in the
cover, and thence through the lower perforated disc into the receptacle for the
beverage below.
The first above described construction of vessel for heating water may also be
used as a cooking vessel, separate from the other parts of the apparatus.