US1727401A - Tobacco pipe - Google Patents

Description

SePt- 1929,

A. FREEMAN 1,727,401

TOBACCO PIPE I We t .1416 er Z Freeman.

Patented Sept. 10, 1929.

UNITED STATES ALBERT FREEMAN, F YORK, Y.

TOBACCO PIPE.

Application filed December 19, 1927. Serial No. 241,121.

The principal objects of this invention are to eliminate the disagreeable features incident to the saturation of the pipe bowl and stem with nicotine-laden moisture and to provide a smoking instrument which may be kept in a thoroughly sanitary condition.

The principal feature of the invention consists in the novel construction and arrangement of a tubular extension from the mouth piece which will engage a shoulder at the bottom of the bowl and maintain a fluid tight joint therewith, thereby presenting an unbroken passage from the bowl to the tip of the mouth piece that will be free from 5 pockets which will retain moisture or joints that will allow moisture to soak into the bowl stem.

A further important feature consists in the provision of a tapering bore in the tubu- 2 lar extension of the mouth piece.

In the accompanying drawings, Figure 1 is a side elevational view of apipe showing I elastic sleeve 12v'vh1ch is here shown'in the the mouth piece partly withdrawn from the bowl stem.

Figure 2 is a longitudinal mid-sectional view through the pipe and stem.

Figure 3 is a perspective detail of the several portions of the mouth piece and extension tube arranged in position for assembling.

The most undesirable feature about pipe smoking or the use of cigar or cigarette holders is found in the accumulation of moisture, ashes and tobacco in pockets formed in the bowl stem or around the inner end of the mouth piece and in the saturation of the porous material of the bowl.

Many different forms of pipes and other smoking implements have been provided with metal tubes in the mouth piece, which extend through the bowl but this invention has been devised in view of the failure to find a satisfactory implement in which. this undesirable feature has been eliminated.

In the construction illustrated the bowl stem 1 is bored with a cylindrical passage 2 which extends into a shoulder 3, closely adjacent to the bottom of the bowl t. An opening 5 of a smaller diameter than the bore 2 I connects the bowl with said bore.

against in a fluid tight joint.

'The outer end of the passage 2 is counterbored and threaded to receive oneend of a threaded sleeve 6 which is preferably of metal and this sleeve projects beyond the end of the pipe stem and is threaded into the mouth piece 7 I A cylindrical counter-bore 8 extends into the mouth piece beyond the end of the sleeve 6 and connects with thebore 9 of said mouth piece, which leads to the tip thereof. 4

A tube 10, preferably of metal, extends through the threaded sleeve 6 and the cylindrical passage 2 inthe bowlstem and is a sliding fit therein. This tube is provided with a flange 11 which is adaptedtoiabut the end of the sleeve 6 andis 'a sliding fit in the counter-bore 8 of the mouth piece.

The other end of the tube lOis squared and is adapted to abu'tthe shoulder 3 adjacent to the bowl of the pipe and to fit there- VVithin the counter-bore 8 is arranged an form of aspiral compression spring 13 which is embedded in rubberwhich is preferably: vulcanized therearou'ndp This elastic sleeve abuts the flanged end of the tube 10 and the shoulder 14 at the end of the counter-bore 8 and when the mouthpiece is screwed into position on the sleeve 6 with the end thereof abutting the end of the bowl stem, the elastic sleeve is placed under. compression with the small end of the tube 10. abutting the shoulder 3 and the flange 11 spaced from the end of the sleevel6.

This arrangement ensures the constant pressure of the end of the tube 10 against the shoulder 3 so that there can be no leakage. Further, as the tube 10 is free in the sleeve 6 it will not turn with the mouth. piece after it engages the shoulder 3, consequently it will not out the shoulder away and in time impair the fluid tight joint. p

The tube 10 is preferably bored with a taper, the larger diameter being at the end adjacent to the bowl. This construction is highly desirable, as it eliminates the gatheringof globules of moisture which are detrimental to the successful use of the pipe.

, -A' smokingimplement provided with astem construction such as described retains piece between the end of the slidable tube and the fluid tight passage throughout the stem the end of the counterbore and engaging the from the bowl to the tip of the mouth piece end of the tube and the bottom of the counindefinitely and accomplishes this desired terbore in sealing pressure contact.

result in a very simple manner.

What I claim as my invention is:

1. In a tobacco. pipe, the combination with the bowl stem having a bore formed with a shoulder adjacent to the bowl and a mouthpiece secured to the stem, of a tubular stem extending into the bore of the bowl stem, and a tubular elastic member engaging, said mouthpiece and the outer end of said tubular stem and holding the inwardiend of said tubular stem in fluid tight contact with the shoulder in said bore.

2. In a'tobacco pipe, the combination with 'the'bowl stem provided with a bore having a shoulder at its inner end and a mouth piece secured to the bowl stem, of a tubular extension from the mouth piece slidably mounted and adapted to abut the shoulder in the bowl stem in a fluid tightjoint, and an elastic sleeve arranged in the mouth-piece and exerting a pressure against the outer end of the slidable tubular extension therein to hold the inner end thereof in fluid tight contact-with the shoulder in the bowl stem. V

3. In a tobacco pipe, the combination with the bowl stem having abore formed with a shoulder at the inner end, of"a mouth piece connected to the end of the bowl stem and having a 'counter bore, a tube slidably su ported in the mouth piece and adapted to slid ably extend into the bore of the bowl "stem and to abut the shoulder therein, and an elastic sleeve arranged in the counter-bore of the mouth piece and'ahutting the end of the tube and the end of the counterbore in sealing pressure contact. i I i 4. In a tobacco pipe the combination with the bowl having a cylindrical bore in the stem thereof providedwith a shoulder atthe bowl endand'a smaller bore connectingthe bowl therewith and a sleeve threaded into the end of the bowl stem andextending therebeyond, of a mouth piece threaded on to the threaded extension of said sleeve having a counter-bore extending beyond the end of the sleeve, a tube slidable in the threaded sleeve and adapted to engage the "shoulder in the bore of the bowl stem in a fluid-tight joint, said tube having a flanged head atthe outer end, and an elastic sleeve enclosed in the counter-bore in the mouth piece and engaging the flanged end of'the tube and the end of the counterbore in pressure sealing contact. 5. A tobacco pipe havingthe bowl stem bored with a shoulder at the inner end, a

mouth piece secured to the bowl stern having a counter-bore, a tube slidably'arranged in the bore of'the bowl stem and extending into the counter-bore of the mouth piece, and a rubber'encased spiralcompression spring arranged in said counter bore in the mouth ALBERT FREEMAN.

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