US2021150A - Smoking pipe cake remover - Google Patents

Description

Nov. 19, 1935. A. N. LEONARD SMOKING PIPE CAKE REMOVER Filed Aug. 20, 1934 Arthur N. Leonard v Inventor j Attorney Patented Nov. 19, 1935 UNITED STATES PATENT OFFICE 4 Claims.

My invention relates generally to tobacco pipe reamers which are capable of eifectively removing the cake that normally forms within the bowl of the tobacco pipe with use and the invention 5 relates particularly to cake removers which leave a smooth and even stufac'e and not jagged surfaces which are made by the pipe reamers now on the market.

It is well known that tobacco leaves are composed of a number of substances including pitch,

tar and natural oils and that the natural tobacco is processed before it is sold on the market as smoking tobacco. In the treating process any one or a combination of what is known as commercial fillers is mixed with the natural tobacco. This filler may consist of licorice, molasses, sugar or honey or other substance which is foreign to the natural tobacco leaves. It is obvious,- therefore, that when tobacco is burned in the bowl chamber of a tobacco pipe; there is created not only the tobacco ash but also other waste products which are normally deposited upon the inner wall of the bowl chamber. The deposited material forms a relatively fixed cake about the bowl chamber wall.

This cake is microp'orous. Consequently, the gases resulting from the burning tobacco enter into these pores. As the heat in the bowl chamber increases this confined gas expands causing the cake to expand. It is obvious that if there is a more than normal amount of cake in the bowl chamber its expansion and contraction will be more violent and if the cake has formed itself unevenly around the chamber wall or if the cake has been improperly reamed out, the cake and chamber wall will contract and expand unevenly. This generally results in the chipping, cracking or evenbreaking of the bowl chamber wall.

.A nominal amount of this waste material around the chamber wall serves to protect it and also gives the resulting smoke which is inhaled by the pipe smoker a somewhat delightful taste. However, if an excessive amount of this waste material is permitted to remain within the bowl 5 chamber, not only is the chamber clogged but the smoke inhaled usually has an acrid taste which is very disagreeable and possibly injurious to the delicate membranes of the mouth and throat and is generally deleterious to the pipe smoker. Then, too, the chemical action which in time occurs in this waste material causes a very displeasing odor to emanate therefrom.

I The primary'object of my inventionis to eliminate as many of the above disadvantages present in the ordinary smoking pipe as is possible and to treat and improve the bowl chamber of the pipe in order to add materially to the pipe smokers pleasure;

Still another object oi my invention is to remove without iniuring the wall, the impurities 5 that normally cling to the wall of the bowl chamber which, if not removed, are ordinarily inhaled with the smoke coming from the burning tobacco.

A further object of my invention is to provide 10 means whereby the cake normally formed within the bowl chamber of a smoking pipe can be quickly removed with a slight amount of effort leaving a comparatively smooth and even cake surface as a wall protective and thus avoiding 15 the possibility of the remaining cake surface to crack or peel.

An important object of my invention is to provide a smoking pipe cake remover which permits the renewal of the abrasive upon the op- 20 crating member when desired.

Still another object of my invention is to permit the inherent friction of the abrasive member to materially assist its retention about the operating member. 5

Another object of invention is to provide a cake remover whose contour conforms to the normal contour of the bowl chamber wall.

Another object of my invention is to provide a tobaccopipe cake remover embodying an op- 30 crating member having a removable abrasive member mounted therearound, said member and abrasive member being so arranged that upon insertion of the assembly into the bowl chamber of a. pipe, the abrasive member will engage 35 the wall of the bowl chamber and create a wedging action upon an inward boring movement of the assembly. 7

An important object of my invention is to provide a smoking pipe cake remover which is simple 40 in design and made of light, inexpensive and durable materials which renders its construction conducive to economic and precise manufacture.

I A still further object of my invention is to provide a unitary article of manufacture capable 4.5 of quick and effective application for the removal of the deposited waste material in the bowl chamber.

The above and other objects and advantages will become readily apparent from the following 50 detailed description having reference to the forms of the invention illustrated in the accompanying drawing forming a part hereof which merely some illustrative embodiments by which the invention may be realized and in which like ref- 55 erence characters refer to corresponding parts throughout the several views.

Figure 1 is an elevational view of the operating member embodying the invention prior to placing the abrasive member about the outer surface of the operating member and into the slot formed therein.

Figure 2 is an elevational view of the operating member shown in Figure 1 illustrating the position of the abrasive member about the outer surface of the operating member and indicating the manner of fastening the abrasive memberby inserting its ends into the slot. A part of the abrasive member is broken away to show that the abrasive element overruns the end of the operating member. 1

Figure 3 is a sectional view of the assembly shown in and taken on line 3-4 of Figure 2 looking in the direction indicated which graphically illustrates the position of the ends of the abrasive member within the slot of the operating member.

Figure 4 is a top, plan view of the abrasive member embodying the invention, showing the outline which is most effective for intimately fitting the abrasive member around the operating member. 7 V

Figure 5 is an elevational view of the assembly shown in Figure 2 and a side view of a standard tobacco pipe which is partially in section. This figure graphically illustrates the position which thecake remover embodying the invention occupies when inserted within a tobacco pipe for the purpose of removing the excessive cake' formed therein. It also shows a part of the abrasive'member broken away indicating that the overrun portion thereof forms itself around the lower end of the operating member'when pressure is applied thereto.

Figure 6 is an elevational view of a slightly modified form of operating'member embodying my invention showing some abrasive material directly applied thereto.

Figure '7 is an elevational view of still another slightly modified form of operating member embodying my invention and showing an abrasive material also directly applied thereto.

" The preferred embodiment of my invention is illustrated in Figures l to 5 inclusive wherein reference character A designates, in general, the main body element; reference character B designates, in general, the abrasive member; and reference character C designates, in general, a tobacco pipe of fancifuldesign illustrated merely for the purposeof showing the manner of applying my invention thereto in order to produce the results desired. Main body element A is of a general cylindrical shape whose upper end I is formed into a holding-member, such as knob 2.

Immediately below knob 2 is formed a circumferential-groove 3 which separates the knob 2 from the remaining portion of the main body element. The remaining portion of the main body element is shaped in the form of a frusto-cone 4. This frusto-cone 4 has a slot 5 disposed longitudinally thereof .dividing it into substantially equal portions 6 and 'I having their lower ends 8-6 rounded. The slot is not only used for the purpose of locking the abrasive member B relative to the main body element A but itadds resiliency to the frusto-cone 4, sothat it may be.decreased incircumference under compressive stresses when applied thereto as will hereinafter be more specifically described. The abrasive member generally indicated by reference character B is of the general shape indicated in Figure 4 wherein the upper-end 9 and the lowereend I are parallel to each other and the sides H and I2 converge slightly toward the lower-end lil. Portions of the abrasive member are out as shown at l3 and M for a purpose which will be more specifically indivcated forthwith. The abrasive member B may have disposed thereon any abrading material ii that is' capable of grinding or wearing away by friction the cake normally formed within atobacco pipe. While crushedsteel, crushed glass or 10 emery cloth. may be used effectively for the purposes desired my present practice is to use pure sand or a'combination of sand and other abrading materials placed on paper commonly known as sandpaper. Attention might well be called to the fact that the abrasive member need not be formed in the precise manner indicated in the drawing. The upper-end 9 and the lower-end l0 might be somewhat circular in order to compensate for the conical-shape of the frusto-cones outer surface and thereby eliminate the necessity of forming the cut-outs l3 and I4.

Figure 2 illustrates the position which the abrasive member B assumes when placed around the frusto-cone 4 of the main body element A. 2.5 It should be noticed that when the converging sides II and I2 are inserted within the slot 5 the. cut out portions shown at I3 and I4 allow the abrasive memberB to surround the upper end of the frusto-cone [as shown at l6l6; and that the abrasive member Bfits snugly around the outer periphery of the main body element A (see Figure 3). This is made possible because sides, I l and i2 converge and thereby permit the abrasive member to assume the general contour of the main body element A and because the area of the. abrasive member B is slightly greater than the surface area of the frusto-cone 4. This arrangement not only permits the insertion of the ends H and I2 within the slot 5 and the upper-end 40" 9 to overrun the upper portion of the frustocone as shown at l6l6, but it also permits the abrasive member B to overrun th e rounded-ends 8-8' as shown at H. Since the surface of the abra sive member B is'covered with an abrading-ma- 'terial l5 it is obvious that when the ends I] and I2 are inserted into the slot 5, the abrading-material prevents their premature removal because the abrading particles interlock with each other 7 3 and maintain a relatively fixed relationship by friction. i The fanciful tobacco pipe shown in Figure 5- and designated by reference character C has a bowl 18 in which is formed chamber I9. Chamber l9 communicates with stem 20 by an orifice -2I which extends therethrough. A mouth-piece overruns the rounded-ends 8-8 as shown amtll will form around and protect theends '8-8 when the assembly is inserted into the bowl chamber of the pipe. By this arrangement an abrading surface is formed at the boring end of the assembly thereby materially assisting in effectively and speedily removing the undesired" portionsof the cake of waste material. V

The abrasive member normally comes in the shape and form shown in Figure 4. In order to secure the abrasive member around the main 16 body element A, the sides H and 12 are inserted into slot 5 and the abrasive member is then thrust upwardly until the cut out portions I3 and M are placed ajacent the end of the slot 5. The assembly is then ready for use in removing the excessive cake formed in a tobacco pipe. When the abrading material is worn out from use another abrasive member may be placed around the main body element A.

Figures 6 and '7 illustrate modified embodiments of the invention wherein the abrading material i 5 is placed directly upon the outer surface of the main body element A thus dispensing with the abrasive member B but eliminating the desired feature of renewing the abrading mateterial without altering or destroying the main body element.

It will thus be seen that there have been described several adaptatio-ns in which the several features of this invention may be attained. However, since many changes could be made in the above construction and many different embodiments of this invention couldbe made without departing from its scope, it is intended that all matter contained in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. Means for partially removing the cake secured to the wall of the bowl chamber of a tobacco pipe, comprising a body element whose contour substantially conforms to that of the bowl chamber, said body element having a longition within the bowl chamber of a pipe, so that the abrading element will engage the wall of the bowl chamber, and said operating member, during the inward boring movement of the assembly being capable of being compressed under the wedging stresses created.

3. A smoking pipe cake remover comprising a main body element including a knob formed at the top thereof and a substantially frusto-conical member formed by the major portion of the body element having a slot longitudinally disposed therein, and an abrading element, having cut out portions and whose sides converge toward each other, adapted for being removably disposed about the frusto-conical portion and retained in relatively fixed relation thereto by having its converging ends inserted into the said slot.

4. As an article of manufacture, a tobacco pipe cake remover consisting of a substantially frustoconical body element having means to impart resiliency thereto and an abrasive member removably disposed therearound and having its free ends inserted within the said means.

ARTHUR N. LEONARD.

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