Improvements in and relating to Tobacco Pipes.
Year: 1899

page_text: Date of Application, 30th May, 1899-Accepted, 8th July, 1899
COMPLETE SPECIFICATION.
Improvements in and relating to Tobacco Pipes.
I, JOHN TOBIN, of 134, North Fullerton Street, Montclair, Essex County, New
Jersey, United States of America, Lawyer, 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:
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This invention relates to pipes for smoking tobacco, and has for its object
such a construction of the pipe as will render its interior readily accessible for
cleaning as it becomes foul from use or is obstructed.
In carrying out my invention, I divide the pipe bowl and stem longitudinally
of the stem, and in a plane which passes through the smoke channel, and in
such manner as to formi separable or partible upper and lower members which
may be readily disconnected in order to gain access to the foul or obstructed
interior; and I secure these separable portions together in any suitable manner,
as by friction at the bowl part, and a band about the stem, which band may be
further utilized to receive the bit or mouth-piece.
A pipe constructed in accordance with my invention will differ in external
visible appearance in nowise from the ordinary pipe, excepting for the line of
division, and this may be so inconspicuous as not to attract attention.
In the accompanying drawings illustrating my invention, in the several figures
of which like parts are similarly designated, Figure 1 is a side elevation of an
ordinary style of pipe constructed in accordance with one form of my invention.
Fig. 2 is a longitudinal section. Fig. 3 is a cross-section taken substantially
in the plane of line 3-3, Fig. 2, and looking toward the bowl. Fig. 4 is a
perspective view of the separable or partible members of the pipe. Fig. 5 is a
longitudinal section, on a smaller scale, of a modification.
As already indicated, and as shown especially in Fig. 1, my invention may be
applied to any ordinary form or style of pipe, having a bowl a, and a stein b.
To construct such a pipe in accordance with my invention, I form the bowl with
its cavity open at both ends, and with the rabbeted bottom portion d, and with
the stem portion e. This stem portion, as shown more particularly in Figs. 3
and 4, is made with what may be called the tenon f having laterally projecting
upper portions g and a portion, say half, of the smoke channel, h.
These parts
constitute what has been herein before referred to as the upper portion or member
of the pipe. The lower portion or member of the pipe comprises the socket i,
which is adapted to receive, frictionally or otherwise, the rabbeted portion
of the bowl, and to form the bottom of said bowl. And said socket portion i
is constructed with the other portion j of the stem, which is made with a mortise k
to receive the tenon f of the upper member, and which portion j also is made
with the complemental portion of the smoke channel.
When these members of the pipe are assembled as indicated in Figs. 1. 2
and 3, they are designed to fit with sufficient tightness to insure the holding
together of the parts without impairing the draft.
A pipe constructed in accordance with my invention offers no visible evidence

page_text: of difference over the ordinary pipe excepting the line of division, as indicated
at m Fig. 1, and as already stated, this is or may be made so inconspicuous as
to evade attention.
As will be observed, the line of division of the pipe into separable or partible
members, is in the plane of the lower portion of the bowl, through the smoke
channel, longitudinally of the stem, and at right angles to the height of the
bowl. Thus the pipe is divided through those portions which become foul or
obstructed in use.
I do not limit my invention to the forms of joints whereby the bowl and stem
portions of the two members are united, as these forms may be variously modified,
but I believe the forms shown commend themselves for simplicity and practic-
ability in the construction of the pipe, the assembling of the parts, the dis-
memberment of the pipe and the facility for cleaning the same.
The mouth-piece or bit may be applied in any of a variety of well known
ways, only one of which is shown, and which consists of a sleeve n having an
internal screwthreaded portion which is fitted to an externally screwthreaded
portion o of the stem, and also having an unthreaded portion pinto which may
be frictionally inserted the mouth-piece or push-bit" r, of any suitable material
and construction. The mouth-piece may be applied directly to the stem in any
usual way and without the use of the band.
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In the form of pipe shown in the drawings, the parts g of the stem overlap
the edges of the mortise k, so as to present a symmetrical exterior, and, for the
same reason, the edges of the socket and the rabbeted portion of the bowl match.
The upper member of the bowl portion need not necessarily have an angular
rabbeted end, but may be made with a tapering end to fit into the socket i, which
will be of complemental shape to receive it, as shown in Fig. 5.
I do not limit my invention to the form of smoke channel or to the point or
plane where the line of division passes through it and the bowl.
I do not limit my invention to the material of which the pipe is constructed,
since obviously, wood, plastic substances and other usual materials may be
utilized in carrying out my invention.
It will be observed that the symmetrical external appearance of the pipe is
preserved, and that the ordinary forms of pipe need not be departed from in
utilizing my invention. The bowl may be of any usual shape, as also may be
the stem, and in these particulars I lay no stress upon the special adaptation
of my invention to the common form of pipe shown in the drawings.
The foregoing and other modifications are within the spirit and scope of my
invention.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:--
A pipe, having an upper and a lower member separable from one another,
the upper member composed of a bowl having a bottomless cavity, a rabbeted
bottom portion and a tenoned stem portion, and the lower member comprising
a socket portion adapted to receive the bowl and form its bottom, and a comple-
mental grooved stem portion to receive the tenoned stem portion of the upper
member, substantially as described.