Improvements in and relating to Tobacco Pipes.
Year: 1892

page_text: Date of Application, 21st Oct., 1892-Accepted, 3rd Dec., 1892
COMPLETE SPECIFICATION.
Improvements in and relating to Tobacco Pipes.
We, JAMES WILLIAM PAPE of 80 West Beach Road, Wood Green, London, N.,
Brass Turner and JAMES WILSON of 4 Outram Street, Caledonian Road,
London, N., Brass Turner, 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 :-
Our invention relates to the class of pipes known as clay lined pipes, that is to
say-pipes, the main exterior portion of which is of wood, say briar, cherry
or the like, having an interior lining of clay forming the bowl and stem, with
mouthpiece adapted to the end of the latter.
An air space or "jacket" is provided around the inner clay bowl and stem,
which are formed in two parts, between them and the outer wooden bowl and stem.
With a view to provide for the ventilation of said air space or "jacket,"
apertures are formed through the wooden bowl and the wooden stem. A continuous
current of air thus rises through the lower inlets in the stem, by reason of the heat
from the bowl, the heated air escaping through the aperture or apertures in the
upper part of the bowl. The inner bowl and stem is thus kept cool by the cold air
entering the space. The clay bowl and stem, according to this arrangement only
bear against the wood at a few points, where the clay is thickest, the nicotine or
tobacco juice thus being completely insulated from the wood and prevented from
fouling it, the removable clay lining being the only part allowed to absorb
the juice.
The pipe proper, in accordance with the above description, is completed by the
adaptation to the end of the stem, of a mouth-piece (clear of the ventilating
apertures last mentioned).
This mouthpiece may, when required, be readily detached, whereupon the
clay stem may be withdrawn from the clay bowl and through and out of the
wooden stem for cleaning or renewal, and similarly the clay bowl out of the sur-
rounding wood bowl, and the whole device afterwards may be with facility
connected up together ready for use. The mouthpiece is made in two parts,
'one of which screws into the end of the stem, and is provided with a small
projecting annular piece at its end, which bears upon the end of the clay. In
order that a tight-joint may be ensured and the slightly varying lengths of the clay-
stems allowed for, this intermediate piece is furnished with a groove at the part
where it meets the end of the wooden stem, so that it can be screwed partly or
wholly in as required, without disfiguring the pipe when only partly screwed. The
mouthpiece proper is not screwed to this piece, but fits tightly in a recess, so that
it can be turned without turning the screwed part, thereby being capable of
adjustment independently. In order that the invention may be more clearly
understood, reference is had to the accompanying sheet of illustrative drawings, in
which
Figure is a longitudinal section of a pipe, constructed according to our
invention, and
Figures 2 and 3 front and back views of the clay bowl.
A is the wooden bowl with stem B, within which are placed the clay bowl C and
clay stem D, the latter being made separate from its bowl; and fitting into the
recess c at the back of the bowl, shown more clearly in Figure 3. The stem D has
a small flange d at its end, which bears against the sides of the stem B, thus
preventing it resting at any other point, excepting in the recess c and forming an
annular chamber E.
The bowl C is also provided with a flange c' at top, fitting the interior of
D 077

page_text: the bowl A and a projection c² at bottom which rests in a recess a in the bowl A.
The bowl C thus bears against the interior of the bowl A only at the flange c¹
and projection c², forming a chamber F all around it, communicating with the
chamber E.
At the upper part of the bowl A, a hole G is formed, and in the stem B,
at each end, holes H are also provided, thus opening both the chambers F and E to
the atmosphere. The heat from the burning tobacco causes the air in the chamber F
to expand, making a draught and drawing cool air in through the apertures H, thus
forming a continual current of air, which effectually keeps the clay and smoke cool.
J is the mouthpiece with end of reduced diameter, fitting into the screwed
piece K. This piece is formed with an annular groove k, and a projecting end ¹,
which bears against the end of the clay stem, the arrangement being such that the
piece K can be screwed fully onto the stem D, whether it is shorter or longer than
the ordinary size. The bowl C, as can be seen clearly in the drawings, is locked
securely in position when the stem is inserted and pressed home by screwed part K,
the projection and recess a serving to prevent it being raised. With this
arrangement no air can be drawn in through the mouthpiece except that passing
through the bowl, as the parts are firmly connected together.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
(1.) A tobacco pipe, having a clay bowl and stem, with air space or jacket
surrounding them, communicating with the atmosphere by two or more apertures,
at the upper part of the wooden bowl, and at the lower part of the wooden stem,
substantially as described and for the purposes specified.
(2.) In a tobacco pipe, the combination with a wooden bowl A and stem B of a
clay bowl C and separate stem D, the stem D fitting into a recess at the back
of the bowl C, means being provided for keeping the inner bowl and stem cool.
(3.) In a tobacco pipe, the combination with a wooden bowl A and stem B, of a
clay stem D and separate bowl C, with recess c into which the end of the stem
projects, and projection centering into a recess a in the bowl A, by means of
which the bowl can be locked in position substantially as described and shown.
(4.) In a tobacco pipe, the combination with inner clay bowl C and separate
stem D, of a screwed piece K with groove k, bearing against the end of the
stem D, and adjustable to varying lengths of stems, substantially as described
and shown.
(5.) The improved clay lined tobacco pipe with means for cooling, adjusting and
locking in position the various parts, substantially as described and illustrated in
the accompanying drawings.
1
1
1000
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicants.