Improvements in Pipes for Smokers.
Year: 1895

page_text: Date of Application, 23rd Sept., 1895-Accepted, 26th Oct., 1895
Improvements in Pipes for Smokers.
We, ROBERT BURNET 5 Upper Dicconson Street, Wigan, Lancashire, Medical
Student, and JOHN THOMAS KEYS, 1 Brownlow Terrace, Lurgan, County Armagh,
Ireland, Officer of Inland Revenue, 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 :-
The objects of our improvement in pipes are to produce a pipe for smokers
which may be used longer than any other without fear of getting foul; which can
be easily kept clean, and also prevents nicotine or the like finding its way to the
smoker's mouth.
In carrying out our invention we provide a pipe bowl and a stem bored out and
communicating with the bottom of the bowl. Above the highest part of the bore
of the stem, we form a ledge around the inside of the bowl, on which we place a
partition, diaphragm or the like of asbestos or other suitable material for the purpose
of separating the tobacco from the waste products. At the end of the bore of the
stem and immediately under the above mentioned partition we put any kind of
suitable absorbent material which will take up moisture and impurities. Parallel
with the main bore of the stem we provide a smaller bore opening into the bowl
above the partition already referred to, and communicating (at the end nearest the
smoker's mouth) with the bore proper of the stem, by a small hole, extending from
the bottom of the smaller bore to top of the larger bore, and at a right angle to the
axis of the pipe.
The mouthpiece is screwed or otherwise attached to the stem, the end of the
mouth piece however, extends some distance into the bore of the stem and the
diameter of the extended part is reduced so as to be considerably less than
the diameter of the bore of the stem, and thus forms an annular channel around
the extended and reduced end of the mouthpiece. This reduced end is of sufficient
length to extend beyond the hole forming the communication between the smaller
and larger bores above mentioned. And we prefer to arrange that the space
between the upper side of the reduced end of the mouthpiece and upper part of
the bore of the stem, is less than that between the lower part of the reduced end and
the lower part of the bore of the stem.
It will thus be seen that the smoke from the bowl of the pipe passes along the
small bore above mentioned, and is drawn through the small hole forming the
communication between this small bore and the bore of the stem, and so on to
the smoker's mouth; and any moisture forming or accumulating at the end of the
bore of the stem or passing the partition, and not being absorbed by the material
put underneath the partition for the purpose, is prevented by the above described
annular channel around the end of the mouthpiece, from passing into the smoker's
nouth.
By removing the partition at the base of the bowl, the moisture and impurities
can be removed through the bowl, instead of through the stem or mouthpiece as is
lone at present.
In order to more fully show the nature of our invention we show on the accom-
panying drawing a longitudinal section of a pipe made in accordance with our
nvention.
a is the bowl of the pipe; b the partition or diaphragm of asbestos or other
absorbent material resting on the ledge e formed around the interior of the bowl:

page_text: is the bore of the stem e; fis the absorbent material placed under the partition b;
is the smaller bore parallel to the main bored of the stem; his the hole forming
the communication between the bores g and d; i is the mouthpiece having the end
projecting and reduced in diameter as shown at j; the centre of the projecting end
is above the centre of the bore of the stem, so that the annular channel formed
between the outside of the projecting end and the inside of the bore of the stem is
wider at the top than it is at the bottom.
We do not confine ourselves to the precise disposition or formation of the various
parts or to their relative proportions, as any or all of them can be varied without
departing from the spirit of our invention.
Our improved pipe can be made of any suitable material or combination of
materials.
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. In pipes for smokers the combination of partition, diaphragm or the like;
absorbent material; small bore communicating with main bore; and annular channel
formed by the projecting end of the mouthpiece the whole for the purposes set out
in the above Specification and substantially as therein described and exemplified in
the accompanying drawing.
Dated this 23rd day of September 1895.
HUGHES & YOUNG,
23 Coleman Street, London, E.C., Agents for Applicants.