US3413980A

US3413980A - Tobacco pipes

Info

Publication number: US3413980A
Application number: US590992A
Authority: US
Inventors: Pollock Ivor Isaac
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-12-28
Filing date: 1966-10-31
Publication date: 1968-12-03
Anticipated expiration: 1985-12-03

Description

' l. l. POLLOCK Dec. 3, 1968 TOBACCO PIPES Filed Oct. 51, 1966 Inventor /m,e /.s'44c fan or)? A llorneys United States Patent Office 3,413,980 TOBACCO PIPES Ivor Isaac Pollock, Rossdene, 20 Carrwood Ave., Bramhall, Cheshire, England Continuation-impart of application Ser. No. 420,215, Dec. 21, 1964. This application Oct. 31, 1966, Ser. No. 590,992 Claims priority, application Great Britain, Dec. 28, 196

51,097/ 63 V 7 Claims. (Cl. 131-214) ABSTRACT OF THE DISCLOSURE A tobacco pipe has a detachable bowl and a metal bowl-holding cup. A smoke-carrying stem extends from and communicates with the interior of the metal bowlholding cup, and a male screw-threaded member within the cup and fixed to and projecting from the bottom of the cup has screw-threaded engagement with the bowl to connect the bowl to the cup. The interior surface of the cup and the underside of the bowl define a smoke chamber between the bowl and the cup, and a slot traverses the screw threads on the male screw-threaded member for passing smoke from the bowl to that chamber.

This invention relates to tobacco pipes and is a continuation-in-part of United States patent application Ser. No. 420,215, filed on Dec. 21, 1964, and now abandoned, in the name of Ivor Isaac Pollock.

According to the present invention there is provided a tobacco pipe having a detachable bowl, a metal bowl holding cup, a smoke-carrying stem extending from and communicating with the interior of the bowl-holding cup, means defining an aperture in the bottom of the cup, a male screw-threaded member within and projecting from the bottom of the cup and fixed thereto through said aperture, said male screw-threaded member having a first flange thereon engaging the inner surface of the cup adjacent and around said aperture and a second flange thereon engaging the outer surface of the cup adjacent and around said aperture, means on the bowl defining a screw-threaded aperture for engagement with the male screw-threaded member to connect the bowl to the cup, the inner surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, and means on the male screw-threaded member defining a passage extending between the bowl and the cup for passing smoke from the bowl to the cup.

Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings in which:

FIG. 1 shows a sectional elevation of a tobacco pipe according to the present invention,

FIG. 2 shows an enlarged plan view of a component shown in FIG. 1,

FIG. 3 shows a sectional elevation of part of FIG. 1 but incorporates a modification of the present invention, and

FIG. 4 shows a detail of FIGS. 1 and 3 but incorporating a further modification.

Referring to FIG. 1 of the accompanying drawings, a tobacco pipe according to the present invention consists generally of a bowl attached to a bowl-holding cup 11 by means of a male screw-threaded member 12, a stem 13 and a mouthpiece 14.

More particularly, the bowl 10 is made of wood, preferably briar, and the bottom thereof is apertured by a screw-threaded socket for engagement with the male screw-threaded member 12. A coiled wire insert 15 may be screwed into a tapped hole in the bottom of the bowl 10 so as to provide the said screw-threaded socket for 3,413,980 Patented Dec. 3, 1968 engagement with the member 12 and an extension 16 of one end of the wire forming the insert 15 bent inwardly so as to project across the upper end of the member 12 and serve as an impediment to the escape of tobacco from the bowl 10 (FIG. 2). Preferably, the insert 15 is made of stainless steel and is of slightly greater diameter than the tapped hole in the bowl 10 so that the coil is under radial compression when in position. The male screwthreaded member 12 may be self-tapping for engagement with an initially plain hole through the bottom of the bowl 10.

The bowl-holding cup 11 is made of metal, preferably stainless steel, and is dished in the form of a deep saucer, the member 12 being fixed to the bottom thereof so as to project upwardly as shown in FIG. 1. The bottom of the cup 11 is apertured and the member 12 is fixed therethrough by means of

flanges

16 and 17, one of the flanges being formed by a rivetting process after insertion of the member 12 through the aperture in the cup 11, the member 12 being a ductile material, for example an aluminum alloy. A layer of poor thermal conductivity material, for example a synthetic resinous cement, may be positioned between the inner surfaces of the

flanges

16, 17 and the corresponding surfaces on the cup 11 so that the cup 11 and the stem 13 will remain relatively cool when the pipe is in use.

The bowl 10 has a land portion 18 in the form of an annular rim which seats on the edge 19 of the cup 11 thereby forming a smoke chamber 20 between the underside of the bowl and the inner surface of the cup 11. An annular washer 21 may be positioned between the land portion 18 and the edge 17.

The stem 13 is also made of metal, preferably stainless steel, extends from the cup at an aperture therein as illustrated and conveys smoke from the smoke chamber 20 to the mouthpiece 14 which is push-fitted into the free end of the stem. The inner end of the mouthpiece 14 may be provided with an extension 22 of reduced diameter so as to form an annular condensate or goo trap 23.

The male screw-threaded member 12 is provided with means defining a smoke passage for passing smoke from the bowl to the cup said means consisting, in the embodiment shown in FIG. 1, of an upright or longitudinally extending bore 24 through the upper portion of the member 12 and a straight, open-ended slot 25 which transversely traverses the member 12 intermediate its ends and communicates with the bore 24. One advantage of this arrangement is that the smoke passages thus formed is easily cleaned, accumulated residues being readily removed from the slot 25 into which any residue in the bore 24 may also be readily displaced.

In the embodiment shown in FIG. 3, parts similar to those shown in FIG. 1 are indicated with the same reference numerals. In this embodiment, a male screw-threaded member 12A is provided with a smoke passage in the form of a slot 26 which longitudinally traverses the member 12A and extends across the threads thereon so as to place the bowl 10 in communication with the cup 11. The arrangement has the same advantage as the FIG. 1 embodiment, the slot 26 being readily freed of clogging residues. In the FIG. 3 embodiment, there may be a plurality of slots 26.

A further modification is illustrated in FIG. 4 wherein a smoke passage 27, 28 through a male screw-threaded member 12A is defined by a conical or countersunk depression 27 in the upper end of the member 12B and a straight, open-ended passage 28 which extends obliquely through the member 12B from the bottom of the depression 27 and emerges intermediate the ends of the member 12B and through the side thereof at a position which is located within the smoke chamber 20 when the pipe is assembled. The member 12B is similar, in outline to

members

12 and 12A, and has the flanges 16 and '17 as previously described. The smoke, passage as defined by the depression 27 and passage 28 is, like the previously described embodiments, easily cleaned by virtue of the passage 28 being accessible from both ends thereof as illustrated.

As a result of the above described embodiments, there are provided tobacco pipes in which the entire smoke passage from the bowl to the mouthpiece may easily be kept clean and in which the bowl-holding cup may be formed as by pressing from sheet metal without having to be diecast or moulded thus permitting of readily fabricated constructions with materials whose quality and durability of appearance provide an eflicient and attractive tobacco pipe at a reasonable price.

I claim:

1. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, a smoke-carrying stem extending from and communicating with the interior of the metal bowlholding cup, a male screw-threaded member within said cup and fixed to and projecting from the bottom of the cup, means on said bowl defining a screw-threaded socket for engagement with said male screw-threaded member to connect the bowl to the cup, the interior surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, and means defining a slot traversing the screw-threads on the male screwthreaded member and for passing smoke from the bowl to said chamber.

2. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, a smoke-carrying stem extending from and communicating with the interior of the metal bowlholding cup, means defining an aperture in the bottom of the cup, a male screw-threaded member within and projecting from the bottom of the cup and fixed thereto through said aperture, means on said bowl defining a screw-threaded socket, a length of helically wound wire screwed into said socket for engagement with said male screw-threaded member to connect the bowl to the cup, the inner surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, means on the male screw-threaded member defining a slot traversing the threads therein, said slot defining a smokecarrying passage through said male member, said passage extending between the bowl and said chamber.

3. A tobacco pipe having a detachable bowl, 2. metal bowl-holding cup, a smoke-carrying stem extending from and communicating with the interior of the bowl-holding cup, means defining an aperture in the bottom of the cup, a male screw-threaded member within and projecting from and fixed to the bottom of the cup through said aperture, said male screw-threaded member having a first flange thereon engaging the inner surface of the cup adjacent and around said aperture and a second flange thereon engaging the outer surface of the cup adjacent and around said aperture, means on the bowl defining a screw-threaded aperture for engagement with the male screw-threaded member to connect the bowl to the cup, the inner surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, and means on the male screw-threaded member defining a passage extending between the bowl and the cup for passing smoke from the bowl to the cup, said means on the male screwthreaded member defining a passage extending between the bowl and the cup comprising at least in part means defining a straight passage having open ends whereby the last-mentioned passage-defining means is readily cleared of obstruction, said means on the male screw-threaded member defining a passage extending between the bowl and the cup comprising in combination means defining a slot which transversely traverses the male member and means defining a longitudinally extending bore through said member, said slot means being located intermediate the ends of the member and said bore means extending between the slot means and the end of the member remote from the bottom of the cup.

4. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, a smoke-carrying stern extending from and communicating with the interior of the bowl-holding cup, means defining an aperture in the bottom of the cup, a male screw-threaded member within and projecting from and fixed to the bottom of the cup through said aperture, said male screw-threaded member having a first flange thereon engaging the inner surface of the cup adjacent and around said aperture and a second flange thereon engaging the outer surface of the cup adjacent and around said aperture, means on the bowl defining a screw-threaded aperture for engagement with the male screw-threaded member to connect the bowl to the cup, the inner surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, and means on the male screw-threaded member defining a passage extending between the bowl and the cup for passing smoke from the bowl to the cup, said means on the male screw-threaded member defining a passage extending between the bowl and the cup comprising at least in part means defining a straight passage having open ends whereby the last-mentioned passage-defining means is readily cleared of 0bstruction, said means on the male screw-threaded member defining a passage extending between the bowl and the cup comprising means defining a slot which longitudinally traverses the male screw-threaded member and extends across the threads thereon.

5. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, a smoke-carrying stem extending from and communicating with the interior of the bowl-holding cup, means defining an aperture in the bottom of the cup, a male screw-threaded member within and projecting from and fixed to the bottom of the cup through said aperture, said male screw-threaded member having a first flange thereon engaging the inner surface of the cup adjacent and around said aperture and a second flange thereon engaging the outer surface of the cup adjacent and around said aperture, means on the bowl defining a screw-threaded aperture for engagement with the male screw-threaded member to connect the bowl to the cup, the inner surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, and means on the male screw-threaded member defining a passage extending between the bowl and the cup for passing smoke from the bowl to the cup, said means on the male screw-threaded member defining a passage extending between the bowl and the cup comprising at least in part means defining a straight passage having open ends whereby the last-mentioned passage-defining means is readily cleared of obstruction, said means on the male screw-threaded member defining a passage extending between the bowl and the cup comprising in combination means defining a conical depression in the end of the member remote from the bottom of the cup and means defining a bore which extends obliquely through the member from the bottom of said depression to a position on the threaded portion of the member, said position being located within said smoke chamber.

6. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, a smoke-carrying stern extending from and communicating with the interior of the bowl-holding cup, means defining an aperture in the bottom of the cup, a male screw-threaded member within and projecting from and fixed to the bottom of the cup through said aperture, said male screw-threaded member having a first flange thereon engaging the inner surface of the cup adjacent and around said aperture and a second flange thereon engaging the outer surface of the cup adjacent and around said aperture, means on the bowl defining a screw-threaded aperture for engagement with the male screw-threaded member to connect the bowl to the cup, the inner surface of the cup and the underside of the bowl defining a smoke chamber between the bowl and the cup, and means on the male screw-threaded member defining a passage extending between the bowl and the cup for passing smoke from the bowl to the cup, said means defining a screw-threaded aperture in the bowl including a coiled wire insert whereof adjacent coils define internal and external screw threads for engagement respectively with said male screw-threaded member and said bowl, one end of the wire of said coiled wire insert having an extension projecting across the end of the male screw-threaded member remote from the bot tom of the cup and providing an impediment to the escape of tobacco from the bowl.

7. A tobacco pipe as claimed iniclaim 1, said means defing a screw-threaded socket on the bowl comprising a coiled wire insert of which adjacent coils define internal and external screw threads for engagement respectively with said male screw-threaded member and said bowl.

References Cited UNITED STATES PATENTS 351,500 10/1886 Degges 131-222 X 782,349 2/1905 Marshall 285-390 X 974,051 10/ 1910 Genther 131-225 X 1/1911 Loewenstein 131-214 X 6/1912 Erickson 285-390 X 10/1925 Burger et a1 131-222 5/1928 Barker 131-222 X 1/1934 Kretzner 131-214X 9/1945 Swift 131-214 X 7/1949 Brown 131-216 X 5/1956 Doumit 131-214 X 1/1960 Wang 131-222 X FOREIGN PATENTS 2/ 1925 Great Britain.

5 1941 Great Britain.

4/ 1934 Switzerland.

SAMUEL KOREN, Primary Examiner.

20 I. S. REICH, Assistant Examiner.