US2191006A - Stoker pipe - Google Patents

Description

- .Feb. 20, 1940. I H. T. BLUM 2,191,006

STOKER PIPE Filed Jan. 10, 1939 30 Figure 2 is an enlarged detailed side cross-secof member 26.

sTATEsr STOKER PIPE Harold. T. *Blum, Glenmont, Ohio, assignor to Briar Hill Corporation, Millersburg, Ohio, a corporation of Ohio Application January 10, 1939, Serial No. 250,220 3 Claims. ((31. 131-431) The present invention relates to smoking pipe positiimed perpendicularly from the end therestructures and r especially to pipe strucof. Said wall lli'is, as shown, threaded upon its tures providing an arrangement for producing a p p e cool, dry smoke. A pipe tobacco reservoir it is formed from a 5 The principal object of the present invention bular p ec of metal av a W i2 and a 5 is to provide a structure and arrangement flange. it e te d perpendicular flOm 0118 611d th 1 1 h 111 deliver th user a 0 1, dry or said wall l2. Wall it has formed therethrough and tar-free smoke. a series of openings it at a point near the flanged A. further object of ti present invention is to e e Sl ably moun ed 0 on di provide a Fire "ure and arrangement theremovement within the tobacco reservoir l4 and 10 1 hi h i 1 t manufacture d yet extending thereacross is a circular concave plate is capable of b g readily cleansed, while at the 5 formed p from a metal- Formed same time, fproviding a cool, dry smoke With said plate 55 at the central point thereof is to the user tl i an extending portion it having a threaded bore And it is an eeri y important object of the fo aXially thereof- Said plate 15 has a 15 present invention to provide a smoking pipe that threaded shaft i l extending throu he t a d will not become calced nor cause a loss in the bore of port o t d ShaftWBXtcnds through the tobaccg s r t 111 t, th game ti probore of a stop and support member 26 to a point vide a cinch ion is cool and has had objectionoutside of member I where it terminates with a able heavy 11 e and watpvapors onden d knurled head it mounted thereon. Said mem- 20 therefrom and which condensed liquids are preher time an ope 501111661 therethrough in vented from reachi g a user thereof. which is mounted said stop and support member Other objects oftlie present invention will be 20, which member Sill has portions thereof bent partly obvious and in part pointed out in the folt Co pl e y e s mid im Sa 5 lowing detailed description of the accompanyshaft l'l has a radially e tend D OJ t I 3 25 ing drawing. formed upon the periphery thereof which is re- In the drawing: ceived in a recess extending from the bore of said Figure l a side cross-sectional view of the e er wf e y Preventing a Sliding v pipe structure embodying the present invention. en Of S d Shaft ll d y 0f he o e tional view of a part of the pipe structure em- A ring l f rm p f y of a h at insulatbodying the present invention. ing material such as a plastic or wood and hav- Figure 3 is a cross-sectional View taken on line ing a tapered bore t3 extending centrally thereof 3-5. of Figure 2. has its outer Walls shaped to cooperate with the Figure 4 is a perspective view of the tobacco Walls Of 110N101? 1? to Complete therewith the 1 35 reservoir forming part of the pipe structure, and pearance of a smoking pipe bowl. Said ring 4 Figure 5 is a perspective view of the baffles and further has bore stepped, forming a longitutheir connection to one another as used with dinally extending threaded Wall 77 connected to the pipe structure. said bored by a step 8.

ing now more particularly to the ac- A series of baffles 2d and 25 formed from a 40 company lg drawing wherein like reference heat conductive material and carried by a bar 23 characters de ignate like members, numeral l in spaced relationship to one another and which designates a tubular sl member having a baffles have a radius equivalent to the interior substantially L-shaped configuration and which Wallsurface'of armii and which are in the form 5 member is to be from a lightweight metal of a substantially semi-circular disc are inserted or a plastic. extended arm -5 of said memthrough the open end of arm it before the inserber i has detachably connected by means of tion therein of mouthpiece ii. These baliles are threads at lit-l mouthpiece ii of the usual conshaped and positioned relative to bar 23 in such struction and which has a bore 2'! extending amannerthat they will frictionally engage with axially thereof. Arm of member I, which as the interior Wall surface of arm 3 to form a series 50 shown, is formed to simulate a pipe bowl, extends 0f intelfionnectfid wmpartments s S own in somewhat at right angles from arm 3. The end Figures a Bail 23 Connecting the baffles of arm or portion of member l is stepped, hav- 24 and is formed fle b e etall c mateing a flange 9 extending perpendicular thererial and Where it is desirable to form arm 3 havfrom and which flange 9 has an extending wall ing a curved shape, the bafiles may be readily 55 inserted within the arm 3 and the bar 23 will, of its own accord, bend to agree with the curve of arm 3. Therefore, the arrangement of bafiies as disclosed in Figure 5 may be readily used with either pipe constructions having a straight or curved stem portion.

Metallic and tubular member I has the tobacco reservoir Ml mounted within portion 2 by placing flange ll upon the edge of wall Ill. The insulated ring 4 is then screwed onto wall I0 and the connecting portion 8 of ring 4 will be caused to bear against a heat insulating disc 3| and thereby retain said flange II against wall I0, and at the same time, spacing wall I2 of reservoir I4 I from said wall Ill. Ring 4 is further insulated from portion 2 by a disc 30 of heat insulating material mounted on the step of portion 2. Further, bore 6 which has its larger diameter equivalent to the diameter of the interior of reservoir it will be positioned in line therewith, with bore 6 gradually narrowing as it tapers upwardly.

With tobacco placed in reservoir I4, the user of a pipe according to the construction herein described may, upon applying a flame to the tobacco and drawing through mouthpiece 5, cause the ignition of the tobacco, inasmuch as the suction applied through bore 2'! of mouthpiece 5 will drawair inwardly through bore 6, through the tobacco and then through openings I3 to within the interior of the tubular member II and past the bafiles 25 and 24. The smoke drawn from the burning tobacco will obviously pass through only a small portion of the tobacco before it enters through openings I3 to the large and spacious interior of member I. As the tobacco is burnt and consumed, the user of the pipe will, by turning knurled knob I9 cause plate iii to be progressively advanced upwardly due to the threaded engagement of rod IT with the bore of said plate I5. Plate I5, being in frictional engagement with the interior of wall I2 or where found desirable in a guide and slot arrangement, not shown, with the interior of said wall I21, will be prevented from rotating and upon the turning of shaft ll will advance upwardly, forcing the tobacco from reservoir I4 to within bore 6. Bore 6, being tapered, will compress the tobacco forced thereinto and will therefore provide a uniform and continuously burning tobacco. As the burnt tobacco will, by this arrangement, remain within the bore 6, the ashes therefrom can readily be shaken outwardly without interfering with the burning of the remaining tobacco, due to the remaining tobacco being in its compressed condition, whereas, of course, the ashes are in a relatively loose state.

Plate l5, which has an extending portion I6 located centrally thereof, will, upon being advanced to the lower portion of reservoir I4, be automatically stopped by the portion I6 contacting an extended portion 22 of member 20.

The burning of the tobacco will always take place within the bore 6 and the heat therefrom will be confined within the insulated ring 4 and, therefore, portion 2 will remain cool due to the interposition between portion 2 and the bore 6 of the heat insulating discs 30 and 3|. The walls I2 of reservoir I4 will contain tobacco or, upon the upward movement of plate I5, will be gradually emptied but will be protected by plate I5 and the tobacco thereon from the heat of the burning tobacco within bore 6. Therefore, the space 29 between wall I2 and the tubular member I will remain cool and this is further aided by constructing the member I of a lightweight metal which will readily conduct heat therefrom. By maintaining space 29 in a cool condition, the objectionable heavy oils, tars and water-vapors coming from openings I3 will be caused to condense and drop to the bottom of said member I. Babies 25 and 24 prevent these condensed liquids from reaching the mouthpiece 5 and, further, aid in the cooling of the smoke as well as further condensing any remaining liquids before the smoke reaches opening 21. The baffles 25 and 24, being in close contact with arm 3, will conduct heat from the smoke to the arm 3 which, being of a lightweight material, will readily conduct the heat to the atmosphere whereby the smoke asit passes over ends 26 of each of the baflles will be gradually cooled before reaching said opening 21.

Space 29 has sufficient volume to hold smoke coming through openings I3 to permit the smoke therein to cool between puffs by the smoker. As plate I5 is gradually moved upward, the volume of space 29 is increased and, therefore, as the area within bore 6 becomes hotter with the continued burning of the tobacco therein and with the resulting raising'of temperature of the smoke from openings I3, the volume of space 29 will be increased to accommodate more smoke and, therefore, permit the same to remain longer in order to be sutficiently cooled to condense the liquids therein before reaching the smoker.

By removing ring 4, tobacco reservoir I4 may be-readily withdrawn from within arm 2 and also by unscrewing mouthpiece 5, the baffles 24 and 25 can be removed from arm 3. Therefore, by two simple operations, all of the members forming the pipe construction can be removed for cleaning without leaving any unaccessible points or hard to get at places which would prevent the removal of the condensed liquids therefrom.

My invention is capable of considerable modification but such modifications as come within the scope of the appended claims, I deem to be within the spirit of my invention.

I claim:

1. A smoking pipe comprising an outer bowl of heat-conducting material, a stem having the bore thereof connected to the bore of said bowl, an inner bowl spaced from said outer bowl, means maintaining said inner bowl in spaced relationship to said outer bowl and closing the space between the upper ends of said bowls, said inner bowl including a plate slidably mounted longi tudinally thereof, perforations formed through the wall of said inner bowl and positioned substantially at the upper end of said outer bowl, means formed of heat-insulating material having an opening formed therethrou'gh positioned above the top ends of said inner and outer bowls, said insulating means being of such thickness in a direction parallel to the axis of said inner bowl that the opening formed through said insulating means will constitute substantially the entire tobacco burning area during the smoking of the pipe and manually operable means connected to said plate and adapted to shift tobacco supported on said plate upwardly for maintaining the tobacco combustion area within the opening formed through said insulating means.

2. A smoking pipe comprising an outer bowl of a heat-conducting material, a stem having the bore thereof connected to the'bore of said bowl,

an inner bowl of heat-conducting material spaced from said outer bowl, said inner bowl consisting of a tube having an outwardly extending flange at the upper end thereof and a bottom slidably mounted longitudinally of said tube, perforations formed through the wall of said tube adjacent said flange and positioned substantially at the upper end of said outer bowl, a heat-insulating ring positioned above said flange and the top of said outer bowl and maintaining said tube and said outer bowl in assembled relationship, said insulating ring being of such thickness in a direction parallel to the axis of said tube that the space within said ring will constitute substantially the entire tobacco burning area during the smoking of the pipe, and manually operable means mounted through said outer bowl connected to said bottom and adapted to shift tobacco supported on said bottom upwardly for maintaining the tobacco combustion area within the space formed by said ring.

3. A smoking pipe comprising an outer bowl of heat-conducting material, a stem having the bore thereof connected to the bore of said bowl, an inner bowl of heat-conducting material spaced from said outer bowl, said inner bowl consisting of a tube having an outwardly extending flange at the upper end thereof and a bottom slidably mounted longitudinally of said tube, perforations formed through the tube wall adjacent to said flange and positioned substantiallyat the upper end of said outer bowl, a heat-insulating ring positioned above said flange and the top of said outer bowl and maintaining said tube and said outer bowl in assembled relationship, heat-in sulating washers interpositioned between said insulating ring and the upper ends of said outer bowl and said inner bowl, said insulating ring being of a thickness in a direction parallel to the axis of said tube so that the bore thereof will constitute substantially the entire tobacco burning area during the smoking of the pipe, and manually operable means connected to said bottom and adapted to shift tobacco supported on said bottom upwardly for maintaining the tobacco combustion area within the space formed by said ring.

HAROLD T. BLUM.

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