Improvements in Tobacco Pipes.
Year: 1897

page_text: Date of Application, 21st Apr., 1897-Accepted, 26th June, 1897
COMPLEIE DIEUITI
Improvements in Tobacco Pipes.
I, ERNEST CRAIG MARTIN of 7 Parkhill Terrace, Old Charlton Lane,
Charlton, Kent, Factory Foreman 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 has for object more effectively to prevent the objectionable
products of smoking tobacco or particles of tobacco from entering the mouth, as
also to ensure freedom of draght in the pipe.
Instead of one passage for smoke (as is usual) I bore two passages in the stem
to the bowl.
These passages are bored below the centre line of the stem of the bowl. A
cylindrical cavity is made in the end of the stem furthest from the bowl. The
object of this cavity is two fold, viz.: firstly, to form a smoke chamber in which
the deleterious products of smoking may collect, and secondly to provide a hold for
the mouthpiece. This cavity must be of sufficient depth to allow of the insertion
of the flange or projection on the mouthpiece hereinafter referred to and a
sufficient. part of the mouthpiece itself to hold the two parts together. The
mouthpiece, which is made preferably of vulcanite or horn, is fashioned, as regards
the end to be inserted in the smoker's mouth, of the usual shape: but the end
which is to be inserted into the cylindrical cavity in the stem of the bowl is made
so as to fit into & hold in the cavity in the end of the stem and is provided with a
flange or projection near its centre line. This flange or projection has one or more
holes bored in it to allow of the passage of the smoke. Just above the flange I
bore two passages in the mouthpiece for smoke. These passages are made to meet
at about one third of the way from the end of the mouthpiece nearest the stem,
where they join a single bore or passage made from the mouth end of the
mouthpiece.
The bores of the stem being so arranged as to be below the the flange on the
mouthpiece the smoke is drawn from them into the lower part of the cavity or
smoke chamber and then up through the hole or holes in the flange of the mouth-
piece into the upper part of the cavity and thence through the bores of the
mouthpiece itself into the smoker's mouth.
The accompanying drawings (in which like letters represent like parts) will help
to illustrate my invention.
Fig. I is a horizontal section or plan of the bowl & stem of the pipe; B, being
the bowl; S, S, the smoke passages in the stem, and C, the cylindrical cavity at
the end of the stem.
Fig. II is a horizontal section or plan of the mouthpiece showing P the projection
or flange with holes H, H, and smoke passages S¹, S¹.
Fig. III is a perspective view of the mouthpiece showing the part C' which
fits into the sides of the cavity C in the stem, also the openings of the smoke
passages S¹ S'above the projection or flange P with its holes H, H.

page_text: Having now 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 :-
The construction and combination of the parts of a tobacco pipe substantially in
the manner & for the purposes above described.
Dated this 21st day of Anril 1807