US1987407A

US1987407A - Tobacco pipe

Info

Publication number: US1987407A
Application number: US669905A
Authority: US
Inventors: George R Mcallaster
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-05-08
Filing date: 1933-05-08
Publication date: 1935-01-08
Anticipated expiration: 1952-01-08

Description

Jan. 8, 1935. G R. MCALLASTER v I 1,987,407

TOBACCO PIPE Filed May 8, 19153 [N ENTOR Patented Jan. 8, 1935 UNITED STATES PATENT OFFICE My present invention relates to smokers articles and more particularly to tobacco pipes, and it has for its object to provide an improved article of this nature that will be simple in construction, pleasing in appearance, readily disassembled and which will produce a cool smoke without liability of the offensive and distasteful products of combustion entering the user's mouth. The improvements are directed in part toward the provision of an exteriorly exposed heat radiating element in the smoke path for eifecting the cooling and toward a particular shaping of the interior of the stem whereby an absorbent renewable cartridge may be advantageously disposed to collect the fluid residue. 7

To these and other ends, the invention resides in certain' improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of this specification.

In the drawing:

Fig. 1 is a side elevation of a tobacco pipe of a conventional type constructed in accordance with and illustrating one embodiment of my invention;

Fig. 2 is an enlarged vertical central longitudinal section therethrough but with a portion of the bit or mouth piece broken away;

Fig. 3 is a fragmentary horizontal section taken on the line 3-3 of Fig. 2, with the grate removed and looking in the direction of the arrows;

Fig. 4 is a detail plan view of the absorbent cartridge holder, detached, and

Fig.5isaviewsimilartoFig.2buton the scale of Fig. 1. showing a modified embodiment of the invention.

Similar reference numerals throughout the several views indicate the same parts.

Referring more particularly to the drawing, 1 indicates the pipe bowl, 2 the stem proceeding integrally therefrom, as usual, and 3 the bit or mouth piece having the usual bore 4 constituting the smoke passage. The stem 2 is bored out on a larger diameter than usual to provide a cavity 5 that merges into the tobacco chamber 6 and the said stem is connected to the bit 3 by an extension of the latter consisting of an interposed metallic coupling '1 of some non-corroding material of high or at least substantial heat-transwhere it conforms to the stem and bit design but is preferably fashioned in a plurality of spaced annular fins or ribs 10 to increase its surface area and hence its heat-radiating propensities.

Thesmoke arising from combustion in the bowl 6 is drawn through the cavity 5 in the stem, through lateral openings 11 in the coupling tube and thence passes down the passage 12 formed by the tube to the bore 4 in the bit. Its heat is absorbed by the metallic coupling products of combustion carried in suspension by the smoke are attracted to the cooler coupling tube and collect in a gummy coating on the outer surface of the extension 13 from which they can be readily wiped off upon detaching the coupling from the stem. The interior can be correspondingly cleaned by removing the plug 14 and running the ordinary flush cleaner through the bore 12.

In addition to these provisions, I provide other means for collecting and removing these accumulations, particularly the more fluid bodies, resulting to some extent at least from the mixing of saliva therewith in the region of the junction of the bottom of the tobacco chamber 6 in the bowl with the cavity 5 in the stem. This means is in the form of a preferably flat strip 15 of ordinary blotting paper or similar absorbent material which is laid along the bottom of the said cavity and extends into the bowl. A detachable holder is provided therefor which, in the present instance, consists of a wire 16 looped back and forth, as shown in Fig. 4, to give it a wider supporting surface while exposlng as much as possible of the absorbent element. At its inner end, it terminates in a ring 17 that is slipped over the extension of the coupling 13 to lodge at its base while its outer end is bent upwardly, inwardly and downwardly at 18, providing a spring hook that clamps that end of the cartridge strip. The intermediate portion of the cartridge lies against the bottom of the extension tube and between it and the body of he holder. It is obvious that this holder may thus be readily detached, cleaned and fitted with a new cartridge when desired upon disconnecting the coupling from the stem.

The provision or the ring 17 in mounting the cartridge holder permits the removable bit or, rather, the extension '7 having the tube 13, to rotate relatively to the holder in taking the pipe apart, so the holder is not revolved around the interior of the chamber 5 in this operation and there is no tendency toward distorting strains between it and the leg 21 of the grate.

This last mentioned feature of my invention lends itself to and combines with the purposes of the invention disclosed in my copending application, Serial No. 845,645, filed December 5, 1932, in which I describe and claim a detachable grate for the tobacco chamber in the bowl which prevents the tobacco and the ashes thereof from reaching and clogging in the bottom or the chamber forming what is termed a heel. Such a device is shown herein at 19 consisting of a spiral wire coil fastened to the bowl by a clip 20 and spaced from thebottom of the chamber by a leg 21. This forms a clear space 22 into which the cartridge 15 projects to perform the functions above described.

In Fig. 5, I show a very much simplified modification of the cartridge feature. Therein the bit 3 and stem 2' are merged, being made in one piece to fit directly into the bowl 1 at 23. An enlarged chamber 5- is provided as before in com-. munication with the smoke passage 4' and extended at 24 at one side of the latter to form an anchorage or holder for the inner end-of an absorbent cartridge 15 not otherwise supported but which extends-into the space 22" as before. This is a cheap construction that may be sold at a very low price.

I claim as my invention:

1. In a tobacco pipe, the combination with a bowl and a stem embodying a bore and a relatively enlarged cavity communicating with the bowl and with the bore, of a bit and a tubular metallic coupling embodying an exteriorly exposed heat radiating surface connecting the bit and the stem and having a reduced extension occupying the cavity in the latter in spaced relationship to its walls, the outer end of the extension being closed by a removable plug and smoke ports being provided therein near its base at a distance from the plug.

2. In a tobacco pipe, the combination with a bowl and a stem embodying a bit having a bore and a relatively enlarged cavity communicating with the bowl in alinement with the bore, of an absorbent cartridge consisting of a long flat strip of material occupying the cavity in a position 011- set from the axis of the bore so as not to obstruct tridge holder detachably and rotatably mounted on the tube to position the cartridge within the cavity and bowl.

4. In a tobacco pipe, the combination with a bowl and a stem embodying a bore and a relatively enlarged cavity communicating with the bowl in alinement with the bore, of an absorbent cartridge occupying the cavity in a position offset from the bore so as not to obstruct the same, a detachable metallic smoke conducting tube in continuation of the stem extending into the cavity and provided with lateral ports, and a removable cartridge holder detachably carried on the tube to position an abmrbent cartridge within the cavity and bowl.

5. In a tobacco pipe, the combination with a bowl and a stem embodying a bore and a relatively enlarged cavity communicating with the bowl and with the bore, of an absorbent cartridged occupying the cavity in a position offset from the bore so as not to obstruct the same, a detachable metallic smoke conducting tube extending into the cavity and provided with lateral ports, and a removable cartridgeholder detachably carried on the tube to position an absorbent cartridge within the cavity and bowl, said holder comprising a ring at its inner end slipped over the tube and a retaining hook at its outer end bent upwardly, rearwardly and downwardly within the bowl.

6. In a tobacco pipe, the combination with a bowl and a stem embodying a bore and a relatively enlarged cavity communicating with the bowl in alinement with the bore, of an absorbent cartridge occupying the cavity in a position offset from the bore so as not to obstruct the same, said cartridge also extending into the bottom 0! the bowl, a detachable metallic smoke conducting tube in continuation of the stem extended into the cavity, a removable cartridge holder detachably and rotatably mounted on the tube to position the cartridge within the cavity and bowl, and a grate in the latter provided with a spacing leg'holding it above the bottom of the bowl and protecting the adjacent portion of the cartridge from solid matter while leaving the said cartridge tree to absorb fluids.

GEORGE R. McALLABTF-R.