Improvements in Tobacco Pipes.
Year: 1890

page_text: Date of Application, 24th Oct., 1890
Complete Specification Left. 21st July. 1891-Accepted. 12th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Tobacco Pipes.
JAMES MUIR, Tobacconist, 144 Main Street, Bridgeton Glasgow, N.B. I do
hereby declare the nature of this invention to be as follows:-
An anti-nicotine smoking pipe, whereby the nicotine and saliva cannot possibly
combine, owing to spiral which fits bore of stem, the spiral having india-rubber
washer fitted on end, to prevent nicotine from entering bowl, through which projects
small tube, which is fixed to bowl of pipe. The spiral being hollow with division
in centre, forming nicotine & saliva reservoirs, the draught is carried from nicotine
reservoir through hole in upper part of spiral near bowl, round spiral to hole in
upper part of saliva reservoir, thence to mouthpiece, the mouthpiece & spiral being
in separate parts, to facilitate cleansing of pipe.
Dated this 22nd day of October 1890
JAMES MUIR.
COMPLETE SPECIFICATION.
Improvements in Tobacco Pipes.
JAMES MUIR 130 Main Street, Bridgeton, Glasgow N.B. Tobacconist 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:-
A smoking pipe to prevent nicotine from entering the mouth, by inserting in
stem, a hollow clay spiral F 4 with wall A in centre forming seperate saliva and
nicotine chambers G. H. Fig. 1, draught being projected into nicotine chamber by
a small bone tube, fixed in bowl, is carried through hole Fin upper part of chamber
entering spiral, round spiral to hole E in upper part of saliva chamber, thence
through mouthpiece, spiral being covered with a thin tube of clay B, and made an
easy fit for bore of stem, and being screwed between two air-tight coushions, rubber
washer I and cork washer C, so as to prevent any smoke or nicotine, getting into
stem of pipe, cork washer acting also, as air-tight fitting for mouthpiece Fig. 2.
Fig. 1 section of pipe.
Fig. 2 mouthpiece.
Fig. 3 section of briar showing bone tube and rubber washer I.
Fig. 4 spiral with covering broken, showing hole F entering spiral.
Fig. 5 socket D made of vulcinite.
Fig. 6 external appearance of pipe.
In making the spirals the clay is first forced through a "bore, forming round
rods, then cut into 11" lengths, one of these is placed in one half of mould C.
Fig. 7, Fig. 8. Mould is now closed, and placed in position in machine, screw B is
forced against it keeping halfs of mould tight together, by depressing lever A the
two pins, D. D. are projected forward into centre of mould, forming the chambers,
and centre wall, and forcing the clay to fill the mould, any surplus clay being cut
of by shoulders of pins, mould is now taken out, and parted, leaving spiral in one
half, it is now threaded on pin G. Fig. 9 moveable pin D being pushed home in
opposite chamber, mould is easily drawn away, spirals are now allowed to dry.
Spirals being dry are now slightly shrunk so that cover can be put on an easy fit,
for this purpose they are centred on pin I. Fig. 1', cylinder being charged through
hole E in end, with clay piston is forced forward with ratchet lever fixed on screw F,
clay is first forced through brass wire gauze J fixed against face of grating Ġ that

page_text: supports dividing pin H, to prevent any grit from passing into nozzle, 16 turn of
screw projects enough clay to cover spiral, face of nozzle is provided with a pair of
spring knifes, that cut of spiral when covered, they are now slightly spounged on
end, and are ready for the kiln.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare what I claim is-
(1) The inserting in stem of pipe a hollow clay spiral, with wall in centre,
forming seperate saliva and nicotine chambers, the draught being carried through
hole in upper part of nicotine chamber, entering spiral, round spiral to hole in upper
part of saliva chamber, thus seperating saliva from nicotine, spiral being covered
with tube of clay, and made so as to drop easily out and in stem, so that when
saturated with nicotine it can easily be replaced with a new spiral.
(2) Apparatus for making the clay spirals for pipes.