US926873A - Tobacco-pipe. - Google Patents

Description

E. IRVING. TOBACCO PIPE.

' APPLICATION FILED NOV. 6, 19707.

Patented July 6, 1909.

m m ws a, w 5 J m New, I MAN 00 MYO-u'mllm melon, u. c.

JOHN E. IRVING, Ol SAULT STE. MARIE, ONTARIO, (ANADA TOBACCO-PIPE.

Specification of Letters Patent.

Patented July 6, 1909.

Application filed November 6, 1907. Serial No. 400,912.

To all whom it may concern:

Be it known that I, JOHN EWART IRVING, a citizen of the Dominion of Canada, residing at Sault Ste. Mario, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Tobacco-Pipes, of which the following is a specification.

My invention relates to tobacco pipes, and more particularly to pipes in which a tortuous passage is provided in the stem in order to inmrove the character of the smoke.

The primary object of my invention is to provide an improved. construction of pipe stem of the above type which shall admit of ready disassembling of the parts for clean.- ing purposes.

A further object of my invention is to provide an improved form of pipe bowl.

With the above and other objects in view, my invention consists in the construction and arrangement of parts hereinafter described, and illustrated in the accompanying drawings, in which:

Figure 1 is a central longitudinal section through my improved pipe, complete. Fig. 2 is a transverse section through the stem, taken on line 2-2 of Fig. 1. Fig. 3 is a perspective view of one of the halves of my improved smoke conduit.

Referring to the drawings in detail, 1. represents the pipe bowl, which may be of any usual or desired. construction, except as hereinafter specified.

2 represents the stem or mouth-piece, provided with the usual bore or smoke passage.

A tubular extension, 3 is formed integral with the bowl, and, together with. the tubular extension 8, formed on the mo nth-piece, constitutes the stem.

Fitted Within the stem is my improved smoke conduit. This comprises a plug, preferably cylindrical, composed of clay, cork, or other suitable material, and split longitudinally into two sections or halves 10 and. 12. This plug abuts at one end against an annular shoulder 7, formed in the bowl extension, and at the other end, against an annular shoulder 9, carried by the mouth-piece. Chambe 7 and 8 are thus formed. at each end of the plug. A plurality of channels are formed in the face of each half or section, 10, 12, and so disposed that, when fitted together, a long, tortuous passage, or conduit, 11. is formed through the plug, having an. opening at each end. As shown, the conduit 11, comprises three passages extending substantially the length of the plug, the outside passages communicating with the inner, at its opposite ends. By this arrangement the smoke is caused to pass successively through all the passages, thus uoducing the same cooling effect as would a long stem. The plug is held in position merely by frictional engagement with the parts of the stem, and it will thus be seen that, by removing the mouth-piece, the plug may be readily slipped out, and the two halves separated. By this construction ready access may be had to the smoke passages for cleaning. ll the plug were made in. one piece, it is evident that the passages could not be satisfactorily cleaned, on account of the bends and angles occurring therein. It will be observed that the plug also serves as a means for holding the two parts of the pipe together, the projecting end constituting a nipple on which the mouth piece is fitted.

From the chamber 7 extends a drip-chamber 5. A smoke-passage l also connects the chamber 7 with the bowl. I have discovered that it is preferable to shape the bowl as shown in the drawing. The novelty consists in forming, at the bottom of the bowl a pit, 6, of smaller diameter than the bowl, and having substantially vertical walls, connected with the walls of the bowl by means of a rounded shoulder 6. The smoke passage l, taps the pit 6 just below this shoulder 6, and I have found that by this construction, the passage l is very much less liable to become clogged, than in the ordinary arrangement.

It will thus be seen that l have provided a very simple and practical pipe, and it is thought the advantages thereof will be read ily recognized by those skilled in the art.

While I have shown and described my improved smoke conduit as composed of two sections or halves, it is of course obvious that three or more sections may be employed if desired, without in any way departing from the spirit of the invention.

What I claim is:-

1. In a pipe, a bowl having a tubular extension, a mouthpiece also having a tubular extension. of substantially the same size, and a plug over which said tubular extensions are fitted so that their edges are in contact and in such manner as to wholly inclose said plug and form but a single external joint, said plug having a smoke passage extending through the same, and being split longitudi nally into sections, whereby, when said plug is removed, and the sections separated, ready access may be had to said smoke passage for cleaning.

2. In a pipe, a bowl having its lower portion contracted and terminating in a pit of less diameter than the bowl, the walls of said pit and bowl merging into each other and forming an annular shoulder around the upper edge 01' said pit, and a smoke passage tap- 10 ping said pit near its upper edge adjacent said shoulder, whereby accumulations may collect in the bottom of said pit without clogging said smoke passage.

In testimony whereof I a'HiX my signature in presence of two witnesses.

JOHN E. IRVING.

Vitn esses EARL F. SAYERS, Gnonern M. CAIN.

Images