US699480A - Tobacco-pipe. - Google Patents

Description

No. 699,480. Patented May 6, I902.

A. K. BOWMAN.

TOBACCO PIPE.

(Application filed Apr. 10, 1901.)

(No Model.)

WITNESSES: INVENTOR {Q 4 fi//0/?]:b0d( V72a/Z ALLAN K. BOlVMAN, OF PITTSBURG, PENNSYLVANIA.

TOBACCO-PIPE.

SPECIFICATION formingpart of Letters Patent No. 699,480, dated May 6, 1902.

Application filed April 10, 1901. Serial No. 55,171. (No model.)

To all whom, it may concern/.-

Be it known that I, ALLAN K. BOWMAN, a citizen of the United States, and a resident of Pittsburg, in the county of Alleghenyand State of Pennsylvania, have invented a new and Improved Tobacco-Pipe, of which the following is a full, clear, and exact description.

This invention relates to a tobacco-pipe with certain novel constructions by which the smoke is rendered pure, free from nicotin as it passes to the smoker, and by which all liquid matter accumulating in the stem is safely retained therein until the stem is opened to clean it.

The invention involves various novelties of form and arrangement, which will be fully developed hereinafter.

This specification is a specific description of two forms of the invention,while the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side view of myinvention. Fig. 2 is alongitudinal section thereof. Fig. 3 is a detail view of the gauze tube. Fig. 4 is adetail section of the plug which holds said tube. Fig. 5 is a detail view of the battleplate in the gauze tube. Fig. 6 is asectional View showing a slight modification of the invention, and Fig. 7 is a detail of the mouthpiece shown in Fig. 6.

a indicates the bowl of the pipe, which is preferably of spherical form.

a indicates a cover or lid of the bowl which is formed with a slot a extending across its circumference. In this slot is received a headed pin a fastened to the bowl. A catch of anysuitable form may be provided for holding the cover in a closed position. \Vhen it is desired to open the cover, it may be slid on the bowl, the movement of the cover being guided by the walls of the slot engaging the pin a thus sliding the guide sidewise and extending the opening in the top of the bowl a.

The stem Z) of the pipe is screwed onto the bowl, as shown best in Fig. 2, and the mouthpiece 0 is connected to the stem by a coupling comprising a threaded band d and a web or disk (1, projecting inwardly therefrom and lying between the parts I) and c. This web d serves a function which will be hereinafter brought out. Establishing communication between the bowl a and the stem 1) is a tube e, which is screwed or otherwise fastened in the bowl, as shown in Fig. 2, and has the end within the bowl cut square, so as to form a shoulder at the upper side of the tube, this shoulder receiving the pressure of the tobacco when packed in the bowl and causing the tobacco to lie loose immediately before the tube. This avoids clogging the tube.

The interiors of the stem 1) and mouthpiece c are provided with absorbent liningsf. These linings are preferably of blotting-paper or the like, so that the nicotin and other liquid and like substances accumulating in the stem and mouthpiece will be absorbed and retained by these linings. The linings are not absolutely essential to my invention; butIconsider them advantageous, since they constitute an assurance of effectiveness. \Vithin the stem I arrange a strainer in the form of a woven metallic tube, which acts to strain and break up the smoke into small particles as it passes therethrough, thereby robbing it of its deleterious qualities. This strainer-tube is indicated at g in the drawings. It is constructed, preferably, of aluminium, and it lies Within the stem Z), the tube extending from the outer end of the tube e to engagement with an enlargement h on the tube 7t, which is fitted within and held by the web 01 of the collar or sleeve d. Approximately at the center of the tube 9 is arranged a baflie-plate g of the peculiar form shown in Fig. 5, the peripheral prongs on the baffle-plate being engaged in the mesh of the tube g to hold the baffle-plate in place. The mouthpiece c has a contracted portion or mouthpiece proper, c, and the inner extremity of this has a small tubular extension. 0 projecting into the mouthpiece c to prevent liquid from passing from the mouthpiece into the mouth of the smoker.

Now with the arrangement above described it is clear that the tobacco cannot be so crowded around the tube 6 as to clog the bowl of the pipe and prevent easy smoking. As the smoke passes through the tube 6 into the woven tube g it is caused to pass out and then back into the woven tube around the baffle-plate g and through the tube 71. to the mouthpiece. This passage of the smoke through the woven tube g will divide the smoke up into fineparticles and collect from it the suspended poisonous substances. This tube g will also cool the smoke by breaking it up into small particles, and thus facilitate the reduction of its temperature. Any liquid that accumulatesin the stem or mouthpiece will be absorbed by the pads f. The smoke passes from the tube It to the contracted portion 0 of the mouthpiece and then to the mouth of the smoker.

The form of my invention shown in Figs. 6 and 7 illustrates a modified arrangement of the mouthpiece in which the extremity of the mouthpiece is curved inward, as at 0 to conform to the shape of the teeth of a person, so that the pipe may be held easily in the month without danger of dropping it and without the exercise of much strength. In other respects the invention shown in Fig. 6 is the same as that shown in the other figures. This improved mouthpiece is adaptable. to pipes with either straight or crooked stems.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A pipe having a spherical bowl cut off at the top, a cover for said top, the cover being concavo-con vex in form and having a slot therein, and a guide device fastened to the bowl and loosely received in the slot.

2. A pipe having a strainer-tube of woven fabric arranged therein and adapted to have the smoke drawn through it, and a battleplate situated in the tube.

3. A pipe having its stem provided with a strainer in the form of a foraminous tube into which the smoke-passage of the bowl leads, said tube being provided with a baffie-plate at about the center of its length.

4:. A pipe having a bowl, a stem fastened thereto, a mouthpiece fastened to the stem, a

coupling for joining together the stem and mouthpiece, the coupling comprising a web projecting between said parts, a smoke-tube held in the web, and a strainer in the form of a foraminated tube held in the stem and mounted on said smoke-tube.

5. In a pipe, a stem provided with an apertu red web extending across its bore, a short tube carried by the web,anda tubular strainer into the outer end of which the short tube projects, said strainer being provided with a transverse partition.

6. A pipe comprising a bowl havingatube leading therefrom, a stem secured to the bowl, a mouthpiece secured to the stem, an apertu red web arranged between the stem and mouthpiece, a short tube secured in the aperture of the web, and a tubular strainer into the inner end of which the tube of the bowl projects, the said strainer being provided with a transverse partition and having its outer end fitting upon the said short tube, as set forth.

7. A pipe, com prising'a bowl having a tube leading therefrom, a stem secured. to the bowl, a mouthpiece, a threaded band engaging the stem and mouthpiece and securing them together, said band being provided with a web having a central aperture, a short tube having a reduced end fitting in the aperture of the web, and a tubular strainer into the inner end of which the tube of the bowl extends, the said strainer being provided with a transverse partition and having its outer end fitting upon the inner end of the said short tube, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALLAN K. BOWMAN.

Vitnesses:

WM. G. LEE, E. A. WILLE.

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