Патент USA US2118612код для вставки
May 24, 1938. w. KREUTZ 2,118,612 SMOKING PIPE Filed May 14, > 1936 m INVENTOR; _ WALTER KREUTZ BY 69% ATTORNEY. Patented May 24, 1938 2,118,612 UNITED ‘STATES PATENT OFFEQE 2,118,612 SMOKING PIPE Walter Kreutz, St.’ Louis, Mo. Application May 14, 1936, Serial No. 79,661 3 Claims. (01. 131—12) My invention relates to smoking pipes and the smoking pipe is provided with the usual in more particularly to means whereby the draw of the pipe can be varied to suit each individual. One of the objects of my invention is to pro 5. vide a smoking pipe with adjustable means for varying the amount of smoke that may be drawn through the mouthpiece, thus permitting the smoker to get ‘either a light or a heavy smoke as desired regardless of whether the tobacco is 10 loosely or tightly packed in the bowl. Another and more speci?c object of my inven tion is to provide a means for varying the draw of a smoking pipe which is carried by and remov able with the mouth-piece when it is detached 15 from the bowl and which is so constructed that easy cleaning of the pipe will not be obstructed. Still another object of my invention is to pro vide a means for controlling the draw of a smoking pipe which is e?icient and reliable in 20 operation, easily incorporated in a pipe, economi cally manufactured, and which does not necessi tate any change in the present standard pipe construction. Other objects of my invention will become ap parent from the following description taken in 2 connection with the accompanying drawing show ing two embodiments thereof. In the drawing Figure 1 is a view of a smoking pipe embodying my invention, the mouth-piece 3O 3 being separated from the bowl; Figure 2 is an enlarged longitudinal cross-sectional view of the principal parts for controlling the draw of the pipe; Figure 3 is a view of the tubular member which cooperates with the cap; Figure 4 is a cross-sectional view of a modi?ed construction; and Figure 5 is a cross-sectional view taken on the line 5—5 of Figure 4. As is well known to pipe smokers, the present smoking pipes do not all have the same type of 40 draw through the mouth-piece. This, of course, is due to varying cross-sectional areas of the pas sages in the mouth-pieces and to the varying lengths of the passages between the bowls and the open ends of the mouth-pieces. Also, the draw of a pipe is affected by the type of tobacco 4 used and its degree of tightness in the bowl. Be cause of all of the above mentioned variables affecting the draw of a pipe, it is, of course, nearly impossible for a smoker to ?nd a pipe that is 50 "satisfactory to his particular liking as there is nothing on the pipe by which he can control the draw to suit his taste irrespective of the kind of pipe he may buy or the way he packs the tobacco in the bowl. By the use of my invention I am enabled to overcome the above noted objectionable fea tures found in pipes as now constructed and pro duce a pipe in which the draw can be so con trolled as to secure the type of smoke desired. Referring to Figures 1, 2 and 3, the bowl l oi‘ 60 tegral stem 2 having an enlarged bore or pas sage 3 in communication with the interior of the bowl by the smaller passage 4. The mouth-piece 5 of the pipe is of usual construction having a central passage 6. The inner end of the mouth piece has integrally formed thereon a reduced portion ‘i, which is of the same diameter as the inner diameter of the bore 3, whereby the mouth piece may be connected to the stem of the bowl 10 by inserting the reduced portion I into the bore 3. All of the structure just described is well known and considered as standard pipe construc tion. In accordance with my invention, I provide the 15 connecting end of the mouth-piece with a tubu lar element 8, which is adapted to be inserted into a bore 9 at the end of the mouth-piece, this bore being nothing more than an enlargement of the passage 6 of the mouth-piece. If desired, the 20 tubular element may extend the entire length of the passage 6. The outer end of the tubular ele ment is cut away in the manner shown in order to produce an extended portion In of semi-cy lindrical formation. Integral projections H are left upon the end of the extension ill for a pur 25 pose which will soon become apparent. A cap l2, having an internal diameter substantially equal to the external diameter of the tubular ele ment 8, is slidably mounted upon the extension II}. The construction is such that the coopera tive relation between the tubular element and the cap forms a variable ori?ce [3, the area of this ori?ce depending upon the distance between the open end of the cap and the tubular element. 35 When the cap I2 is slid inwardly upon the ex tension l!) as far as possible, the ori?ce 13 will be completely closed and when it is slid in the op— posite direction to a point adjacent the end of the extension, the ori?ce will be fully open and of 40 an area equal to or greater than the cross-sec tional area of the passage 5 in the mouth-piece. The projections ll, above referred to, may be . bent in and out as desired and in this manner provide the desired amount of friction between 45 the inner surface ofthe cap l2 and the extension to insure that the cap will remain in an adjusted position. The cap I2 is of a smaller outer diameter than the bore 3 of the stem of the bowl and when the mouth-piece is connected to the stem, the tubu lar element and cap will lie in the bore 3. There 50 is suflicient space between the wall of this bore and the cap that the total cross-sectional area of the space will be as great as the cross-sectional 55 area of the passage in the mouth-piece, thus not decreasing the total amount of smoke which can be drawn through the mouth-piece passage when the ori?ce i3 is opened to its fullest extent. Referring to Figures 4 and 5, I have shown a 60 2 2,118,612 slight modi?cation of the structure shown in Fig ures 1, 2 and 3. The tubular element 8 is formed a “wet heel”. Also, the cap prevents any ?ne tobacco from being sucked into the passage of with an extension ID’ in the same manner as the the mouth-piece and thereby clogging up the extension In previously described but the pro jections ll eliminated. The external surface of the extension It!’ has formed thereon threads l4 pipe. and the cap I2’ is provided with internal threads l5 for cooperation with the external threads l4. The movement of the cap l2’ with respect to the 10 extension In, to vary the area of the ori?ce I3, is now accomplished by a screwing instead of a sliding operation. Since the use of internal threads on the cap l2 may necessitate increasing the thickness of 15 the wall of the cap and thereby decreasing the amount of space between said cap and the wall of the bore 3 of the stem, when the cap is posi tioned in said bore, the external surface of the cap is provided with a plurality of spaced longi 20 tudinal grooves I 6 in order to insure that the cap will not in any way obstruct the free passage of smoke. The tubular element and the cooperating cap may be made of any type of material found de sirable, as, for example, metal or possibly a phenolic condensation product. However, in the construction shown in Figures 1, 2 and 3, I pre fer to make the parts out of metal and the tubular element 8 especially should be made from some deformable metal in order that the projections may be easily bent to the proper position to form the desired amount of friction between said pro jections and the interior surface of the cap l2. From the foregoing description of my inven tion it is readily seen that the draw of the pipe may be controlled as desired by varying the area of the ori?ce l3. The pipe may be originally constructed with the passage 6 of the mouth piece as large or as long as desirable and yet the 40 draw of the pipe may be changed to suit the taste of the individual purchaser. If the smoker is in the habit of packing his tobacco tightly in the bowl and at the same time desires a heavy smoke, he may properly adjust the ori?ce l3 so that the 45 area thereof is as large as the cross-sectional area of the stem 6. On the other hand, if the smoker desires a light smoke, he may decrease the draw of the pipe by decreasing the size of the ori?ce l3 to the desired area. If the smoker 50 packs his tobacco loosely in the bowl and desires a heavy smoke, it will not be necessary to open the ori?ce to such an extent as would be neces sary when the tobacco is tightly packed. Also, for a light smoke with loosely packed tobacco, the ori?ce I3 would be closed to a greater extent than when the tobacco was tightly packed. Also, Being aware of the possibility of modi?cations in the particular structure herein described with out departing from the fundamental principles of my invention, I do not intend that its scope be limited except as set forth by the appended claims. 10 Having fully described my invention, what I claim as new and desire to secure by Letters Pat ent of the United States is: 1. In a tobacco pipe, the combination of a mouthpiece adapted to be detachably connected 15 to a pipe bowl and having a passage therethrough, a tubular element having one end extending into the passage of the mouthpiece and provided at its other end with an integral semi-cylindrical extension, and a cylindrical cap having a closed 20 end and telescopically positioned on said exten sion for longitudinal movement, the end edge of said cap being cooperatively associated with the edge portion of the tubular element adjacent the point of joinder of the extension to thereby form a variable ori?ce for controlling the volume of smoke that can be drawn through the mouth piece, said tubular element and extension when the cap is removed forming no obstruction to the free passage of a cleaning element in an axial 30 direction through the stem and tubular element. 2. In a tobacco pipe, the combination of a mouthpiece adapted to be detachably connected to the pipe bowl and having a passage there through, a tubular element having one end ex tending into the passage of the mouthpiece and provided at its other end with an integral semi cylindrical extension, said extension being pro vided with resilient projections, and a cylindrical cap having a closed end and telescopically posi tioned on said extension for longitudinal adjust ment, said projections frictionally cooperating with the inner wall of the cap to hold said cap in adjusted position, the end edge of said cap being cooperatively associated with the edge por 45 tion of the tubular element adjacent the point of joinder of the extension to thereby form a vari able ori?ce for controlling the volume of smoke that can be drawn through the mouthpiece, said tubular element and extension when the cap is removed forming no obstruction to the free pas sage of a cleaning element in an axial direction through the stem and tubular element. 3. In a tobacco pipe, the combination of a mouthpiece adapted to be detachably connected 55 to a pipe bowl and having a passage there through, a tubular element having one end ex by the use of my invention a long pipe can be made to draw like a stubby pipe or vice versa by a proper adjustment of the ori?ce. 60 As can be readily seen, my invention does not tending into the passage of the mouthpiece and provided at its other end with an externally require that the general construction of the pipe be changed in any manner except possibly in creasing the length of the bore 3 in the stem of a cylindrical cap having a closed end and in ternal threads and adapted to be screwed on said the bowl. Its use on a pipe also does not hinder the cleaning of the pipe for the cap I2 may be quickly removed and the absorbent pipe cleaner passed directly through the passage in the mouth-piece in the usual manner. When my invention is embodied in a pipe, it is 70 to be noted that the cap 12 is very e?ective in preventing any moisture, which may seep down the passage 6 of the mouth-piece from the smok er’s mouth, from passing on to the bottom of the bowl of the pipe and causing What is known as threaded integral semi-cylindrical extension, and 60 extension for longitudinal adjustment, the end edge of said cap being cooperatively associated with the edge portion of the tubular element ad 65 jacent the point of joinder of the extension to thereby form a variable ori?ce for controlling the volume of smoke that can be drawn through the mouthpiece, said tubular element and ex tension when the cap is removed forming no ob 70 struction to the free passage of a cleaning ele ment in, an axial direction through the stem and tubular element. WALTER KREUTZ.