IMPROVEMENTS IN
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by Edward Ward at the Office of the
Commissioners of Patents on the 20th June 1883.
EDWARD WARD of Liverpool in the County of Lancaster.
TOBACCO PIPES."
"IMPROVEMENTS IN
The object of this invention is to prevent the nicotine and moisture from the
tobacco entering the stem of the pipe, also to absorb the dissolved oil et cetera
contained in the smoke from the tobacco as it is drawn through the stem of the
pipe.
In carrying out the invention I form what I term a nicotine cup underneath
the bowl which contains the tobacco. One or more holes or perforations in the
bottom of the bowl lead to the nicotine cup. A cover or hollow stopper made of
metal or other material a little longer than the cup, is attached to it; the nicotine
drains through the holes in the bottom of the bowl into the nicotine cup, in which
I place an absorbent material and becomes absorbed, and the nicotine is thus
prevented from running into the stem of the pipe.
The material I generally use as an absorbent is either charcoal or sponge, but
any other porous material will do, and it may be inserted in the cup either in one
piece or cut up small, or it may be fixed on the inner part of the stopper. The
absorbent requires to be frequently changed.
The nicotine cup may be formed in different ways. In clay pipes a tube is
formed or is moulded with the pipe underneath the centre of the bowl. This tube
is preferably about half an inch long, and the inner part rather more than a
quarter of an inch in diameter, and one sixteenth of an Inch thick. A cover made
of metal or other material is fitted over the projecting tube, or a stopper pre-
ferably hollow inserted therein forms the Nicotine Cup-the loose cover or
stopper must so fit that it can be easily removed. Sometimes I form the stopper
by means of cutting a thin piece of cork the exact size of the inner part of the
tube, and fix the cork on a piece of wood about one sixteenth of an inch thick,
leaving a narrow margin all round; when I use this kind of stopper I make the
tube a little longer.
In Briar Pipes the Nicotine Cup is cut out of the Wood not moulded as in the
Clay Pipes.
I absorb the dissolved oil et cetera contained in the smoke from the Tobacco bv

page_text: fixing to the stem of the Pipe a tube filled with absorbent material through
which the smoke is drawn, but preferably by either fixing a plug tube made of
metal or other material at the end or other part of the stem or as in the case of
Briar Pipes, I form the plug tube in the inner part of the stem itself. The
absorbent material or plug is placed in the tube. The material I generally employ
is either Charcoal, Sponge, or soft Pumice Stone, though other materials that will
allow the smoke to pass through are suitable.
The absorbent material may be put in the plug tube as in the case of the
Nicotine Cup, either in one piece or finely divided and enclosed in a case perforated
at the ends, or it may be put loosely into the tube.
When at the end of the stein, I fix the plug tube by forming a round collar
thicker than the other part-of-the-stem-and-about a quarter of an inch in length
slightly tapered, and rather more than a quarter of an inch in diameter or of
sufficient size to fit tightly inside the tube. The tube is pushed on to the stem for
about a quarter of an inch.
A mouthpiece made of bone or other material slightly tapered at the end is
pushed into the other end of the tube. The tube must fit both the mouthpiece
and the stem so that they can be easily removed..
When I fix the plug tube in any other part of the stem, I divide it into two
pieces and on the ends form a collar in the same manner as that. abovo described;
the ends of the stem are then pushed into each end of the plug tube. Each part
must fit, so that the stem can easily be disjointed: Instead of the joints between
the plug tube and the stem being as described, screw joints may be used if
preferred..
In some of the Briar Pipes I form the plug tube inside the stem, either at the
end or other part; when I place it at the end I make that part where I require
the tube of a little larger diameter than the other part of the stem and in length
about an inch, I then hollow out this part, A bone or other mouthpiece is fitted
into the tube either serewed or pushed in.
When I form the tube in about the centre of the stem, I divide the stem into
two pieces, and hollow one part out, the other part of the stem may be pushed in
or a screw may be formed and so joined..
I prefer to make tobacco pipes with both the Nicotine Cup and the plug tube,
but as the latter adds more to the expense of an ordinary pipe, in the case of
cheap pipes such as those made of clay, I sometimes dispense with it and make
them with the nicotine cup alone, or if preferred for special purposes the plug tube
only may be used: