Improvements in Tobacco Pipes.
Year: 1891

page_text: Date of Application, 17th Oct., 1891
Complete Specification. Left, 4th July, 1892-Accepted, 6th Aug.,., 1882
PROVISIONAL SPECIFICATION.
Improvements in Tobacco Pipes.
We, JOHN STEPHEN, Watchmaker, and, GEORGE STEPHEN Junior,, Teacher
of Mathematics, both of 30 Clarence Street, Edinburgh,,do hereby declare. the
nature of this invention to be as follows:-
The object of this invention is to provide pipes from which the nicotine, or
other objectionable matter generated when smoking tobacco, or other vegetable
substance, in the bowl of the pipe, may be easily and effectually removed from
the stem or tube of the pipe which conveys the smoke to the mouth of the
smoker. To effect this desirable end we make a tube in two longitudinal
sections which will fit into each other forming, when the two sections are joined
together, an air-tight tube the full length of the stem or shank of the pipe.
We suggest that a slot be made in the one section, and a corresponding projection
on the other section which will slide into the slot thus forming a complete tube,
but we do not bind ourselves to this or any other form of connection between
the two halves of the tube. This tube to be threaded as a screw near the
centre so that it may be screwed into the section of the stem or shank next to
the bowl of the pipe; the mouthpiece to form a case or covering which can be
pushed or slid on to the projecting end of the tube which will be slightly graded
so as to form a plug upon which the mouthpiece may be securely fixed. Though
describing the foregoing system of joining the separate parts together we may use
this or any other method of connecting those parts. The pipe when completed
will thus have an inner tube which can be removed and separated into two
portions longitudinally so that all objectionable accumulations may be removed.
This tube or shank can also be so constructed that it will not require the outer
mouthpiece or cover which is mentioned above. These pipes may be made in
all the different designs and materials used in pipe manufacture.
Advantages claimed :-
First Simplicity of construction.
Second Effective manner in which all objectionable matter can be removed from
the tube or stem of the pipe as easily as from the bowl.
Third-The tube being separable longitudinally cannot get choked.
JOHN STEPHEN.
GEO. STEPHEN, JR.
COMPLETE SPECIFICATION.
Improvements in Tobacco Pipes.
We, JOHN STEPHEN, Watchmaker, and GEORGE STEPHEN, Teacher of
Mathematics, both of 30 Clarence Street, Edinburgh, 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 object of this invention is to so make pipes, that the nicotine or other
objectionable matter, generated when smoking tobacco, or other vegetable sub-
stance, in the bowl of the pipe, can be easily and effectually removed from the
stem or tube of the pipe, which conveys the smoke to the mouth of the smoker.
To effect this desirable end, we make a tube, of any suitable material, in two
longitudinal sections, which fit into each other, so as to form, when the two sections
are joined together, an air-tight tube the full length of the stem or shank of the
pipe. We suggest that a slot be made in the ore section, and a corresponding
projection on the other section, which will slide into the slot, thus forming a
ul

page_text: complete tube, but we do not bind ourselves to this, or any other form of connection
between the two halves of the tube. The tube may be screw threaded near the
centre, so that it can be screwed into the section of the stem or shank next to the
bowl of the pipe. The mouth-piece forms a case or covering, capable of being
pushed or slid on to the projecting end of the tube, which latter is slightly graded,
so as to form a plug, upon which the mouth-piece can be securely fixed. The pipe,
when connected together, will thus have an inner tube, which can be removed and
separated into two portions longitudinally, so that all objectionable accumulations
may be removed in the most effective manner. This tube or shank may also be so
constructed, that it will not require the outer mouth-piece or cover, which is
'mentioned above.
The improved pipes can be made in all the different designs and materials used
in the ordinary pipe manufacture.
And in order that our said invention may be properly understood, we have
hereunto appended an explanatory sheet of drawings, whereon
Fig. 1 is a longitudinal section of the improved pipe.
Fig. 2 is a cross section on the line x-x, Fig. 1.
Fig. 3 is a longitudinal section of another form of pipe.
Fig. 4 is a cross section, on the line y-y, Fig. 3.
Fig. 5 is a plan view, of one half of the inner tube used in the pipe, Fig. 1.
Fig. is a plan view of one half of the inner tube, used in the pipe, Fig. 3.
Fig. 7 is a part longitudinal section of a pipe.
Fig. 8 is a plan of one half of the inner tube used in the pipe, Fig. 7.
Figs. 9 and 10 are cross sections of an inner tube, having jointed slots and
feathers.
Referring to the drawings:-
a is the pipe bowl, 6 the stem, c the mouth-piece. d is the inner tube, made in
two parts d¹, d², which, when placed or joined together, form a tube with a central
channel f.
In Figs. 1, 2 and 5, the inner tube d is shown as made larger at the bowl end
than at the mouth end, and is graded or tapered at e, so that the mouth piece c
can be push-jointed to it. The inner tube d is made by merely placing the
parts d', d, together. When this is done, it is pushed into the stem ĭ.
In Figs. 3, 4 and 6, the inner tube d is lengthened and extends right through the
shank of the pipe. It is made with a bulb part 9, which enters the mouth.
The tube is shown as of the same thickness throughout.
In Figs. 7 and 8, the inner tube is shown as similar to Figs. 1 and 5, save that
it is screwed at h into the shank of the pipe.
Figs. 9 and 10 show the two parts d', d, of the tube, jointed together by a
feather or tongue and groove joint. i are the longitudinal. feathers and j. the
grooves. Any other suitable connection can be used for the two pieces d¹, d².
The improved pipe has the following advantages, viz. :-
1st. Simplicity of construction.
2nd. The effective manner in which all objectionable matters can be removed
from the tube or stem of the pipe, as easily as from the bowl.
3rd. The inner tube, being separable longitudinally, cannot get choked.
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 :-
A tobacco pipe, having an inner sectional tube d, which can be removed,
and the parts separated for cleaning purposes, substantially as hereinbefore
described, with reference to the drawings annexed.
Dated this 26th day of June 1892
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.