IMPROVEMENT IN THE CONSTRUCTION OF TOBACCO PIPES
Year: 1884

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I, JAMES WOOD of N° 4 Bladud Buildings in the City of Bath and County of
Somerset, Tobacconist do hereby declare the nature of my invention for AN
IMPROVEMENT IN THE CONSTRUCTION OF TOBACCO PIPES, to be as follows:-
The stem I graduate in size or so shape that the end when fitted or secured in
a mouth piece of required capacity, a space is formed in, around and between the
stem and the mouth piece. In to the entrance or passage at the top of the stem of
the pipe, I place a moveable plug of conical form, made of absorbent substance or
material and I obtain the draught from the mouth piece fitted on the stem, by
perforating holes around the stem (at a required distance from the top of the stem)
in to the passage of the stem, the shape and length of the plug as placed in the
stem providing a sufficient space therein, and by way of the perforated holes a free
draught throughout the entire pipe is secured.
My Invention as applied to the mouth piece is maintained by transfering the
perforated holes and plug to the month piece and adjusting it in the stem or passage
of the pipe.
My Invention affords a desirable and easy method of cleansing the pipe and
checking the ascendancy of offensive matter to the mouth of the smoker.
Dated this twenty eighth day of March one thousand eight hundred and

page_text: I JAMES WOOD of N° 4 Bladud Buildings in the City of Bath, Tobacconist
do hereby declare the nature of my said invention for AN IMPROVEMENT IN
THE CONSTRUCTION OF TOBACCO 'PIPES and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
The object of my Invention is to afford an easy and as far as practicable
an effectual method of cleansing a Tobacco Pipe and to intercept and condense
the so called "Nicotine" and check the ascendancy of offensive matter to the
mouth of the smoker.
"
- In carrying out my invention I arrange the tube of the pipe so that a small
portion of it is double or telescoped" either by the mouth piece overlapping
the stein or by the stem overlapping the mouth piece- and I place in the inner
tube of the telescoped portion-it may be in the stem or it may be in the mouth
piece a moveable plug of conical or conoidal form, and of an absorbent substance
or material, that is to say, of wood paper, meerschaum, or the like.
I perforate the inner tube where it surrounds the coned part of the plug,
preferably near the base of the cone, with a convenient number of holes, and I so
construct the pipe that the telescoped parts may easily be separated for the purpose
of cleansing and be fitted together again. By this construction an impediment is
presented to the direct passage of the smoke as it is drawn from the bowl of the
pipe, and as the stream of smoke impinges upon the apex of the cone (the apex
being towards the bowl) it takes an oblique course and passes in a lateral
direction through the perforations into a chamber formed around the perforations,
by either, reducing the stem, or, enlarging the interior of the mouth piece, and
thence through the mouth piece to the mouth of the smoker. The arrangement
just described is when my invention is applied to the stem of a pipe. When it is
applied to a mouth piece the smoke impinges upon the head of the plug and the
smoke has to pass into a chamber around the perforations then pass through the
perforations and afterwards flow in a line with the apex of the coned plug (the
apex being towards the mouth) through the mouth piece. In consequence of the
obstruction presented to the direct course of the smoke a great quantity of the
essential oil of the Tobacco or "Nicotine" is deposited on the conical plug and
around and about the perforations before mentioned, and such deposit may be
removed from time to time as it accumulates by taking the tube apart and taking
out the conical plug. The accumulation can then be wiped off the parts and the
tubes can be cleansed with a piece of twisted paper or with ordinary tube cleaners
or by other well known means.
In order that the foregoing description may be better understood I have appended
hereto drawings to illustrate my invention wherein Fig 1 represents a longitudinal
section of a pipe with my invention applied to the stem-a being the stein of the
pipe. the movable. plug-c the mouth piece d the reduced part of the stem
forming a chamber around the perforations e. Instead of reducing the stem to
form a chamber the mouth piece may be under cut, but I do not find that plan so
convenient. Fig: 2 represents a longitudinal section of a pipe with my invention

page_text: applied to the mouth piece, a being the stem of the pipe b the movable plug c the
mouth piece, d the reduced part of the mouth piece forming a chamber around
the perforations e. In this case also instead of reducing the mouth piece to
form a chamber the interior of the stem may be enlarged. Fig 3 shews the stem
of a pipe with mouth piece and plug removed. Fig: 4. Conical and conoidal
plugs.
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
1 In a pipe used for the purpose of "smoking" the combination of a movable
plug of conical or conoidal, form with the stem of a pipe such stem
having a series of perforations substantially as herein before described and
illustrated.
2 In a pipe used for the purpose aforesaid the combination of a movable plug of
conical or conoidal, form with the mouth piece of a pipe, such mouth piece
having a series of perforations substantially as herein before described and
illustrated.