US1796589A - Tobacco pipe - Google Patents

Description

F. BUTTNER TOBACCO PIPE March 17, 1931.

Filed- Aug. 31. 1929 //7 v enfor'.

Patented Mar. 17, 1931 UNITED STATES PATENT OFFICE FRITZ IB'U'TTNER, OI DANZIG, FREE CITY 03 DANZIG roimcco rrrn Application filed August 31, 1929, Serial No. 389,796, and in Germany October 13, 1.928.

This invention relates to a tobacco pipe with removable pipe bowl and removable insert of porous substance arranged under the bowl. The pipe body has a wide bottom as 5 flat as possible, from which extends a tubular extension designed to receive the mouth piece, the lower surface of said extension being flush with the lower surface of the pipe body. The cylindrical side wall of the pipe-body is perpendicular on the bottom face, so that a hollow space is obtained easy to *observe, showing no hidden corners, and which can be easily and perfectly cleaned. In this hollow space an insert, known per so, made of porous material is arranged which accurately fits on the wall of the hollow space, has at its centre a wide bore designed to hold the pipe bowl and in its inner and outer surfaces parallel channels, the outer channels terminating in an annular groove.

An essential characteristic of the invention is, that this annular groove is at a certain distance above the bottom plate of the insert, the effect of the pipe aimed at being attained only thereby. It is important that under any condition filtering of tobacco juice into the mouth piece of the pipe is prevented, as the smoke from the pipe bowl ascends first on the inner side of the insert to descend on the outer surface of the same. Before the smoke flows into the annular groove the mois-- ture carried along by the same has had time to penetrate into the porous walls of the insert so that the smoke arrives in the annular groove in a perfectly dry state. If the annular groove communicated with the bottom of the pipe body, it might be possible that the smoke absorbs again moisture from tobacco residues which collect in the course of time on this bottom, so that the previous drying would be useless. Inorder to exclude the possibility that the liquid residues flow from the pipe body into the mouth piece when the pipe is inclined in a certain position, the inner mouth of the suction channel is situated a certhe bottom of the pipe plate of porous material, flows through vertical channels into the annular groove arranged in the upper portion of the pipe bowl and then into the mouth piece.

Two embodiments of the invention are illustrated by way of example in the accompanying drawing in which Fig. 1 shows a pipe according to the invention in longitudinal section,

Fig. 2 is a section on line 22 of Fig. 1,

Fig. 3 shows in lon itudinal section a modified construction of t e pipe.

Fig. 4 is a section on line H of Fig. 3.

The pipe body a is constructed, as shown, so that its hollow space is limited by straight planes and has no hidden corners, the flat bottom extending" straight, said pipe body having a tubular extension a into which the mouth piece a is inserted. The mouth a of the smoke channel in the mouth piece is a gercain distance above the bottom of the pipe .AZI insert 0 of porous material is in the pipe body. This insert a is preferably made of infusorial silica and coated with meerschaum,

as thereby the taste of the tobacco will be improved. The meerschaum coating is produced by strewing meerschaum powder in the mould so that it combines with the infusorial silica at the pressing.

The insert 0, into which the pi e bowl 6 fits tightly, rests on the bottom 0 the pipe body with a large surface, and it has vertical channels d in its outer surface and vertical channels e in its inner surface. The outer channels it terminate at the lower end in'an annular groove 7 arranged a suitable distance above the bottom of the insert a. pipe bowl I) has a central bore 6 in its bottom plate, and the ring flange at its upper end is with liquid, it is interchanged against'a fresh insert.

The pipe shown in Fig. 3 differs from the pipe shown in Fig. 1 in that the vertical ascending channels it, the vertical descending channels '70 and the annular groove 2' are arranged in the outer surface of the pipe bowl The descending channels at the outer surface on the inner side and an annular groove connecting the top ends of said ascending and descending channels.

4. A, tobacco pipe as specified in claim'l, comprising" an insert made of infusorial silica.

5. A tobacco pipe as specified in claim 1, comprising an insert made of infusorial silica and coated with meerschaum.

In testimony whereof I affix my signature.

FRITZ BI lTTNER.

g, the annular groove 71 being at the top end of the vertical channels h and la. The channels k on the outer side communciate with the hollow space in the bottom of the pipe bowl A plate m of porous material is inserted between the bottom of the pipe bowl g and the bottom of the pipe body. The smoke gives up its moisture to the late m of porous material and ascends then t rough the vertical channels ,kinto the annular groove 5 and descends thence through the vertical channels k to flow into the mouth a of the mouthpiece.

I claim 1. A tobacco pipe, comprising in combination a body with cyllndrical inner s ace havin no hidden corners and a plane ottom, a tu ular extension of said pipe body having a flat bottom and designed to receive a mouthpiece, a pipe bowl having a central bore in the bottom plate removably inserted into said pipe body, and an insert of porous material -1n said pipe body underneath said pipe bowl and having vertical ascending channels and an annular groove in its outer surface and vertical descending channels in its inner surface desigr ed to conduct into the mouthpiece the smoke which has given up its moisture to the porous insert.

2. A tobacco pipe as specified in claim 1,

comprising in combination with the pipe body, an insert of porous material bearing with its large bottom face upon the flat bottom of the pipe body and having at a certain height an annular groove communicating with the vertical channels.

3. A tobacco pipe as specified in claim 1,

comprising in combination with the pipe body and the mouth piece, a plate of porous material on the bottom of the inner space of the pipe body, and a pipe bowl removably mounted in the pipe body and having ascending channels on the outer side communicating with the hollow space under said pipe bowl

Images