IMPROVE- MENTS IN PIPES FOR SMOKING TOBACCO AND IN TUBES FOR SMOKING CIGARS AND " CIGARETTES
Year: 1884

page_text: I, JOHN PRESTON of 46 Argyle Street Dunoon in the County of Argyle,
Tobacconist, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN PIPES FOR SMOKING TOBACCO AND IN TUBES FOR SMOKING CIGARS AND
"
CIGARETTES and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This Invention, which relates to improvements in pipes for smoking tobacco, has
for its object to filter and comparatively speaking dry the smoke in its passage
from the bowl of the pipe to the mouth of the smoker.
The improvements constituting the invention are illustrated by the several
figures on the drawings annexed hereto and as shown by the said figures they are
comprised in the stem of the pipe, the improved stem being removable from the
bowl and a part of it situated in a cylinder or casing formed on the bowl and
constituting part of the stem as seen at figure 1. The joint between the permanent
and removable part may be a push screw or other ordinary and approved form of
pipe joint.
Figure 2, of the drawings is a side elevation figure 3, a plan, and figure 4ª an
end elevation showing the direction of the passage through the stem. Figures 4,
and 5, are respectively an elevation and plan showing the application of filtering
and cleaning media to the stem.
Beginning at the end a, nearest the bowl passages for the smoke are as seen
more particularly at figure 4a, made in each side of the stem. These passages
terininate at b, (figures 2 and 4) where they enter a chamber extending from b,
to c, and divided into two parts longitudinally by the mid rib d. The two
compartments so formed communicate with each other through holes or passages f
but not otherwise, it being important that except where passages are intentionally
provided the part of the removable stem encased in the permanent stem should fit
air tight.
From c to g, a horizontal passage is made in the circumference of the removable stem.
This passage enters a circular passage h, extending around the stem and at a point
diametrically opposite the passage g, the said passage h, meets another passage i,
parallel with the passage g, and also made in the circumference. This passage i, in
its turn conducts the smoke into another passage j, formed similarly with the
passage h; and the passage j, meets another horizontal passage h, corresponding
with the passage g, i, and leading into another circular passage l, from whence the
smoke passes through a passage m, which as seen on figures 2, and 4, may be
diagonal or it may be parallel with the length of the stem in which case it is or
may be formed in the circumference after the manner of the channels g, i, k.
At the part n, of the removable stem an enlargement is formed as indicated and
when the pipe is made with a push joint the forward end of this enlargement
constitutes an abutment and prevents the removable part of the stem from being
pushed too far into the permanent portion which latter may have a ferrule o

page_text: around it, at that part as usual. Instead of a push joint the part n, may be
screwed or otherwise secured air tight into the permanent stem From n to p,
a chamber similar to that extending from b, to c, is made the said chamber being
enclosed by a sliding and removable ferrule o¹, figures 1, and 5, and divided into
two compartments by a mid rib 8, which is preferably placed at right angles to the
rib d, and formed with holes or passages for communication between the two
compartments. From the rear of the chamber n, p, the bore is made straight
through the mouth piece which may be in one with the removable stem or be
screwed on to it as indicated at figure 1.
In the chambers bc, np, woollen cotton or other equivalent fibre or yarn blotting
paper or other filtering and absorbent material is placed. When fibre or yarn
is used it may to secure it in position be threaded through the holes communicating
between the two compartments of the chamber as indicated at t, t¹, figures 4, and 5,
or it may be wound round the mid ribs d, s, in which case the ribs are preferably
countersunk as indicated at figure 6, to give a better hold to the material. This
latter arrangement is also applicable when blotting paper or equivalent absorbing
material is used.
In the forward chamber b, c, it is however preferred to arrange the filtering
medium as shown as that arrangement conveniently permits of a pad or wiper
being secured along one or both edges of the mid rib d. This wiper which may
be of chamois leather or equivalent substance is indicated at u, figure 4, and its
function is to clean out the channel of the permanent stem by turning round the
removable stem in the act of withdrawing it from the pipe. As indicated at
figure 2, the said rib d, is countersunk to receive the strip u, of leather which
when in position should exactly fill the space between the countersunk part and
the inner surface of the permanent channel.
The smoke in passing through the stem-comes in contact with the fibrous or
other filtering medium in the chamber. b, c, whereby nicotine and other obnoxious
matters are filtered out of it. It then passes into the tortuous channel g, h, i, j, k, l,
which I term the drier wherein it is cooled and injurious matters which may have
escaped the action of the filtre are further condensed out. From thence it passes
into the second chamber n, p, wherein it is further refined and thereafter through
the straight bore to the mouth of the smoker.
The filtering medium in the chamber n, p, also acts as a trap or absorbent for
saliva.
The drier or tortuous passage g, h, i, j, k,l may be continued to any desired
length a circumferential and longitudinal passage alternating with each other as
shown and hereinbefore set forth.
Manifestly the improvements hereinbefore described may also be applied to tubes
for smoking cigars & cigarettes.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is,
In pipes and tubes for smoking tobacco, cigars and cigarettes a removable stem
constructed and arranged substantially as and for the purposes herein before
described with reference to the drawings hereunto annexed.
T 17
GEO. M. CRUIKSHANK, Fel. Inst. P.A.,
135, Buchanan Street, Glasgow,
.Agent.