US2020730A - Tobacco pipe - Google Patents

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INVENTOR n l E- ,Da wl zu] L a v/ fe S BY /l {'1 ATTORNEY.

Nov. 12, 1935.

Patented Nov. 12, 1935 UNITED STATES PATENT GFFICE 2 Claims.

This invention relates to improvements in tobacco pipes and has reference particularly to means separably holding together the bowl stern and pipe bit and for collecting and trapping within the body of the bit any juice from the tobacco which may have been discharged while smoking.

It is desirable in the construction of tobacco pipes of this character to provide a joint to support the bit in the bowl stem and in order to effect a perfect hold for the bit in the bore of the stem, the fit of the two parts must be fairly tight. As a result there is a tendency on the part of the stem to crack or split when subjected to any undue expansion of the bit tenori, a condition following the flow of warm smoke through the stem and into the bit.

With the foregoing in mind it is an object of my invention to avoid strains upon the wall of the bore in the stem and I accomplish this object by providing a double support for the bit within the bore of the bowl stem so as to distribute a greater part cf the strain to the mid portion of the bowl stem where the material thereof has its 'greatest thickness.

Another object of my invention is to provide a cylindrical plug attachably connected to the bowl stem and arranged completely within the bore of the latter, the plug having an enlarged portion to lit closely in the bore of the bit tenon to form a closure, which is adapted to trap within the bit any juice from the tobacco, and which is drawn out of the tenon when the bit is removed to permit discharge of the trapped juice.

A still further object of this inventionis to provide a cylindrical plug in the bore of the bowl stem having a reduced portion with an opening into the bore of the plug, the stem being provided vwith an air opening entering the space about the reduced portion of the plug to keep the latter cool and to introduce a jet of cool air into the smoke- (Cl. ISL-12) the bowl and I I the bowl stem with a smoke passage or bore I2 leading from the bowl I0 into and through the latter, the bore I2 being increased in diameter from its mid portion to the outer end of the stem to form a well I3. The inner end of the bore I2 is threaded to 4'receive the threaded end I4 of a tubular plug I5.

The plug I5 consists of a metal member having a flange I5 at the inner end of the threads I4 to abut the shoulder I'I at the inner end of the well I3, a reduced mid section IS provided with a radial opening I9 leading into the bore 20 of the plug. The plug at the end of the reduced section I8 has an enlarged intermediate part 2| and a tubular terminal part4 22.

The bit member is designated 23 and is provided with a smoke passage 2li leading to a well 25 at the inner end of the bit. The well 25 accommodates at its free end a tubular part 26 of a tenon joint or union 2l', the part 25 being pro- H vided with radial projections which embed themselves into the wall of the well 25 Jto-forin a rigid connection between the parts. intermediate the union 2'I is a flange 28 which abuts on one face the inner end ci the bit and on the other seats against the end of the bowl stem il. A tubular part 29 beyond the flange 28 forms a tenon which fits into the open end of the well i3 and receives the enlarged intermediate part 2l of the plug I5,

the part 2I completely closing the well, as illus o tratively exemplified in Figures 1 and 2. I'he tubular terminal part 22 projects into the well 25 to a point corresponding With-the outer end of bowl stem. To prevent bits of tobacco or other matter entering the smokers mouth, it is desirable t-o provide a length of tube 30 extending from the inner end of the smoke passage 24 into the well 25.

In order to cool the smoke an orifice 3I is drilled transversely of the bowl stem at a point which will allow it to open into a chamber 32 in the well 25 disposed between the flange I 6 and enlarged portion 2l.

If it is desired to clean the pipeof any deposit which may have formed therein, the bit 23 is simply withdrawn from the bowl stem and shaken whereupon any deposits which may be contained in the well 25 are discharged therefrom.

When the bit is replaced it will be Seen that it receives double support in the bowl stem, rst at the usual point where the tenon 29 fits closely the wall of the well 25, and second where the enlarged intermediate part 2l fits into the end of the bore of the tenon 29, any strain at the second support being dissipated through the screw end I4 of the plug into the bowl stem Il at its inter- Vmediate and heaviest part.

an air chamber in the Well and being provided Y with an orioe leading into the bore of the plug, said stem having an oriiioe to admit air into said chamber, an intermediate enlarged part to fit into the tenori and support the bit and a tubular terminal part projecting into the bore of the bit.

2. In a tobacco pipe, the combination of a. bowl having a stem with a bore and a well at its free end, a bit having a tubular joint fixed in its inner end and projecting therefrom to form a tenori insertable into the Well of the stern for support, and a tubular plug fixed in the bore of the stem and projecting into the'well thereof, the intermediate part of the plug being enlarged to t the bore of the tenon to further support the bit, the portion of the plug intermediate the fixed end and the enlarged part being arranged in the well of the stem and provided With an orifice opening into the bore of the plug, said stem having an orifice admitting air to the Well in the stem and in proximity of the orifice in the plug.

DAVID PAUL LAVIETES.

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