Improvements in Tobacco Pipes.
Year: 1890

page_text: Improvements in Tobacco Pipes.
I, EDMUND LEACH of Moss House Rochdale in the County of Lancaster, Solicitor,
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:-
This invention relates to tobacco pipes and its object is to prevent the passage from
the pipe to the mouth of the smoker, of the condensed products of the combustion of
the tobacco or of liquid and other substances.
I will describe my invention with reference to the accompanying drawing which
represents a longitudinal section of a tobacco pipe constructed according to my
improvements.
When the pipe is in use, the tobacco is contained within a bowl A the lower part
of which is surrounded by the chamber B formed within the external bowl of the
pipe C. The lower part of the bowl is perforated so as to allow the smoke to pass into
the chamber and the upper part may be quite plain or preferably be formed with a
flange of the full diameter of the external bowl.
Within the pipe there is or are arranged one or more small tubes D D which or
each of which opens in and close to the upper part of the chamber B. The other end
of the tube or of each of the tubes D D communicate with a second chamber E
formed in the stem of the pipe and separated from the chamber B by the plugs or
diaphragms F. This communication of the tube or tubes D D may be effected by
connecting them with a larger tube G formed in or passing through the diaphragms F
and opening into the chamber E, or it may be effected by passing the tube or
tubes D D through the part F so that it or they open at one end in the upper part of
the chamber B and at the other end into the chamber E. I prefer however in all
cases that the communication in or through the part or parts F should be by means of
a single tube and I prefer also that the end of this tube within the chamber E should
be controlled by a small ball arranged on a seating as a back pressure valve, that is to.
say, in such a manner as to permit the free passage of the smoke in one direction (to
the smoker's mouth) and to close on its seating and block the passage when air is
attempted to be forced in the opposite direction into the pipe.
The upper ends of the small tubes DD may be straight or they may be re-curved
as shewn in the drawing so that the smoke enters them in an upward direction.
A pipe constructed according to these improvements may be formed of any suitable
materials, as for example meerschaum or bruyere wood for the bowl and stem, and
meerschaum or pipe clay for the inner bowl, and it may also be made to any desired
pattern or dimensions as an ordinary wooden or meerschaum pipe.
Having uow particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
1. A tobacco pipe constructed and arranged substantially as and for the purpose
hereinbefore described and as illustrated by the accompanying drawings.
2. In a tobacco pipe, the combination and arrangement of a chamber surrounding
the lower part of an inner bowl in which the tobacco is contained, a second chamber
contained in the stem of the pipe, and a tube or tubes opening at one end near the top
of the bowl chamber and at the other end within the stem chamber, and with or
TD

page_text: without the back pressure valve; substantially as and for the purpose herein before
described and as illustrated by the accompanying drawing.
Dated this 4th day of December A D 1890.
WILLIAM E. HEYS,
Agent for the Applicant.