Improvements
Year: 1898

page_text: I, JOHN THOMAS DAWES, of Cefn Mawr, Mold, in the County of Flint,
Civil Engineer, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a pipe which shall allow of ready insertion
or removal of absorbent or filtering material, into or from some part of the stem, or
into or from a chamber formed therein, and to provide means for readily closing or
opening a passage into such chamber.
For this purpose I provide a chamber in or connected to the bore or stem of the
pipe such chamber having an opening in the side thereof through which absorbent
or filtering material can be passed. In order to close the said opening I use a
rotating cover fitting over the chamber and attached to, or formed as part of the
mouthpiece. By turning the mouthpiece an opening in the cover can be brought
opposite the opening into the chamber so that absorbent inaterial can be inserted into
the chamber. By again turning the mouthpiece the opening in the chamber is
closed.
I prefer to form a chamber in the mouthpiece separated from the chamber
containing the absorbent material by a diaphragm having a small opening for passage
of smoke.
Improvements in
I, JOHN THOMAS DAWES, of Cefn Mawr, Mold, in the County of Flint, Civil
Engineer, 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, reference being had to the accompanying drawings:-
-
The object of this invention is to provide a pipe which shall allow of ready insertion
or removal of absorbent or filtering material into or from some part of the stem or
into or from a chamber forined therein and to provide means for readily closing or
opening a passage into such chamber.
For these purposes I provide a chamber in or connected to the bore or stem of the
pipe such chamber having an opening in the side thereof through which absorbent
or filtering material can be passed. In order to close the said opening I use a
rotatable cover fitting over the chamber and attached to or formed as part of the
mouthpiece. By turning or moving the mouthpiece an opening in the cover, either
the open end of such cover or an additional opening in the side thereof, can be

page_text: Fig. 1 is a longitudinal section partly in elevation of a pipe constructed according
to my invention. Fig. 2 is an end view of the diaphragm and Fig. 3 is a sectional
view shewing the cover withdrawn. a is the stem of the pipe, b is a chamber
formed in or connected to the bore of the pipe c is an opening in the side of the
chamber through which filtering or absorbent material b¹ can be inserted or removed
from the chamber. Such material is for the purpose of preventing objectionable
matter passing to the mouth of the smoker. d is a cover over the chamber. This
cover is formed as part of, or attached to, the mouthpiece e and can be turned and
withdrawn as shewn in Fig. 3 so that the open end e¹ is opposite the opening c so as
to expose such opening c and allow insertion or removal of absorbent material or
removal of any liquid collected in the chamber b. The chamber 6 is closed at one
end by a diaphragm for the like having a central opening g to allow of cleaning the
bore of the pipe. h is a sinall opening or openings to allow passage of smoke.
If
desired the openings may be dispensed with, the smoke then passing through the
opening g alone. j is a chamber formed in the mouthpiece and separated from the
chamber b by the diaphragın f which prevents saliva from the mouth of the smoker
running into the chamber b. Any liquid or saliva from the mouth of the smoker is
collected in the chamber j and when the mouthpiece and cover are completely with-
drawn from the chamber b any liquid in the chamber j and liquid or absorbent
material in the chamber b are readily removed.
h
Fig. 4 is a side elevation and Fig. 5 is a longitudinal section partly in elevation of
a modification under my invention. Like letters indicate similar parts as in Figs. 1,
2, and 3. In this modification the cover d is provided with an additional opening d
at the side so that by turning the mouthpiece and with it the cover the opening d¹
can be brought opposite to the opening c in the chamber b as in Fig. 5 so that such
opening is exposed for removal or insertion of absorbent material or removal of
liquid. By again turning the cover so that the opening d¹ is at the side as in Fig. 4,
the opening c is closed and the pipe is then ready for use. In order to empty the
chamber j in the mouthpiece the cover is completely withdrawn from the chainber b.
A stopper k may be inserted into the opening g in the diaphragm to prevent passage
of saliva or liquid through such opening from the chamber j to the chamber or
vice versa. The stopper is formed with a broad head which serves to prevent any
saliva being blown through the openings h.
I do not confine myself to the particular arrangements above described as such
may be varied without departing from the nature of my invention.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
I claim is
First. In a tobacco pipe the combination with a chamber in the stem or bore
having an opening in the side thereof, of a mouthpiece having formed therewith or
attached thereto a cover for the chamber substantially as and for the purposes set
forth.
Second. In a tobacco pipe the combination with a chamber in the stem or bore
having an opening in the side thereof, of a diaphragm having an opening therein,
and of a mouthpiece having formed therewith or attached thereto a cover for the
chamber substantially as and for the purposes set forth.

page_text: Third. In a tobacco pipe the combination with a chamber in the stem or bore
having an opening in the side thereof and a diaphragm with a passage therein, of a
mouthpiece having a chamber therein and a cover for the chamber in the stem or
bore formed with or attached to such mouthpiece substantially as and for the pur-
poses set forth.
Fourth. In a tobacco pipe the combination with a chamber in the stem or bore
having an opening in the side thereof of a mouthpiece having attached thereto or
formed therewith a cover for the said chamber such cover having an opening in the
side substantially as and for the purposes set forth.