US2134698A - Ventilating pipe - Google Patents

Description

NOV. 1, A. w BRENNINGER VENTILATING P IPE Filed May 3, 1935 E137- F1 5E1.

INVENTOR.

. Patentecl Nov. 1, 1938 UNITED STATES "PATENT oFFicE Alfred Brenninger,

Pelham, N. Y., assignor of one-half to James F. McConnochie, New

York, N. Y.

Application May 3,

9 Claims.

This invention relates to an improved smoking pipe, and particularly to a pipe the shank of which may be ventilated so as to permit the air to circulate through the bore of the same and rapid- {5 1y dry and purify the wood from which the pipe is constructed.

One of the objects of the invention is to provide a smoking pipe with a shankand a member insertable therein, the shank being constructed with a longitudinal slot to permit of inspection and insure free ventilation, and the insertable member being constructed to seal the bore of a the stem against leakage to the ventilating slot and to provide a condensation slot in its base and an axial smoke passage communicating with the same, the ventilating slot terminating inwardly of the mouthpiece receiving end of the shank, so that it will notexpand to impair the sealing fit of the slotted stem with the insertable stem member.

Anotherobject of the invention is the provision of a pipe having a shank constructed as above set forth, with a mouthpiece which is provided with a sliding closure for the ventilating slot, the rear end of which is swivelled to the mouthpiece bit by means of the insertable stem member, the rear end of which is coupled in the mouthpiece bit, so that the mouthpiece can be turned by the pipe user to withdraw the insertable member, without injuring any of the parts of the pipe.

Another object of the invention is to provide a pipe with, a shank and mouthpiece part which is insertable in the stem to provide a condensation trap at the base of the bore of the shank, and to provide means on the insertable part which will produce a scraping or wiping action, to remove nicotine or other matter deposited in the con densation trap. V 40 A still further object of the invention is to provide aninterfitting connection between the inner end of the insertable member and the body of the pipe, to insure against smoke leakage and to provide a closed draft through the stem. 7

A still further object of the invention is to realize these features by a construction which will be simple in design, economical to manufacturaand which will give superior service in use for aprolonged period of time.

With the above and other objects in view, the invention consists in certain new and useful constructions, combinations, and arrangements or parts, clearly described in the following specifi- *cation,and fully illustrated in the drawing, in

which:--

1935, Serial No. 19,646

Fig. 1 is a side view of the improved pipe.

Fig. 2 is a longitudinal sectional view thereof, taken on line 22 of Fig. l, looking in the directionof the arrows.

Fig. 3 is a transverse sectional View, taken on line 3-3 of Fig. 2, looking in the direction of the arrows.

Fig. 4 is a top plan view of the improved pipe.

Fig. 5 is a plan view of the bit and insertable member, showing the sliding slot closure turned to right angles, of its normal position, for illustrative purposes only. i

Fig. 6 is a top plan view of the pipe bowl and shank, with the mouthpiece and insertable member removed.

i Fig. 7 is a transverse sectional view, taken on line 'l- E of Fig. 6, looking in the direction of the arrows.

Fig. 8 is a similar view, taken on line 83'of Fig. 6, looking in the direction of the arrows.

Fig. 9 is a fragmentary plan view of a modified form of a pipe having a shank provided with a metal collar.

Fig. 10 is a transversesectional view thereof.

Referring to the drawing illustrating the practical construction of the invention, 5 desigates the bowl of the pipe and 5 an integral shank. The shank is formed with a smoke passage 1 which communicates with the combustion chamber 8 of the bowl.

1 The passage 1 is enlarged to receive a cylindrical insertable member 9, which is formed with an axial smoke passage l0, which communicates with the bowl passage l. The tubular wall of the shank is formed with a longitudinal slot l I, which is shown to be located on the upper side thereof. This slot extends through the wall of the shank from a point spaced rearwardly of the bowl 5 to a point spaced forwardly of the rear end of the shank, thus providing an unslotted shank por tion or bridge 52, shown in Figs. 6 and 7, and an unslotted bridge portion l3 adjacent the bowl 5.

The insertable member 9 is formed with an internally bevelled forward end 9a, which thus provides a good sealing fit with the corresponding portion 9b, formed in the forward end of the shank, as shown in Fig. 2. The maximum surface area between the forward end of the insertable tube or member and the pipe is thus provided. The lower side of the insertable tube or member 9 is also formed with a longitudinal slot M, through which nicotine and other undesirable matter may condense against the bottom surface of the enlarged bore of the shank, in the area.

bounded by the sides of the longitudinal slot M. The forward side or edge of the slotted tube or member 9 is provided with a wiping or scraper edge l5, adapted to have a wiping or scraping action against the bottom surface of the enlarged bore la, of the shank, when the tube 9 is withdrawn from the stem.

The insertable tube or member 9 is coupled by means of the screw threads IS with the forward end of the mouthpiece bit I1, which is provided with an axial passage I8 leading to the mouth receiving end of the bit, to discharge smoke to the mouth of the user. This tube 9 is also formed with a shoulder 9 and between this shoulder and the forward end of the bit I! a circular member is mounted, so that it can turn freely in either direction, using the tube 9 as a pivot for such turning action.

The circular member 20, which is in the nature of a washer or bearing disc, is equipped with an integral sliding closure bar or arm 2|, which is adapted to slide over the slot H, and close the same. To insure a smooth external fit of this closure bar with the shank 6, the latter is formed with a longitudinal shoulder 22, which extends \parallel to the slot on each side thereof, and beyond the end of the slot, and this shoulder is engaged by the inner surface of the sliding closure bar or finger 2|.

The forward end of the mouthpiece bit is provided with an index mark 23, shown to be located on the upper and most easily observed side of the bit. The washer or bearing disc 28 is also provided with a corresponding index mark 24, which is designed to register with the index mark 23. When the two marks are in registration the condensation slot in the lower side of the insertable tube 9 will be located in its normal bottom position. By rotating the bit the tube 9 will be turned, thus freeing the same for easy withdrawal. Whenthe bit is rotated or turned the closure finger or bar will not be disturbed.

The heat conducted to the tube 9 is dissipated to some extent through the metal washer or disc '20 and through the air space 25 above the tube and below the sliding closure finger 2|, to the latter, so that the construction tends to produce a cooling action on the smoke stream.

When all the parts are properly coupled in working relation, as shown in Figs. 1 and 2, the smoke will be drawn from the combustion chamber of the bowl 5, through the passage H] to the passage H! of the mouthpiece bit, and discharged into the mouth of the smoker.

The flow of smoke will cause nicotine and other matter to condense over the slotted area of the tube 9, thus producing a purifying action. By withdrawing the mouthpiece bit both the tube 9 and the closure finger 2| will be detached, and at the same time any nicotine or deposited matter will be scraped from the enlarged bore la of the shank. When the mouthpiece bit, the tube 9 and the sliding finger 2| are thus removed, the longitudinal slot II will be wholly exposed, thus provi'ding a longitudinal ventilation opening for the shank. Due to the fact that this slot is located within the ends of the shank, leaving the shank ends unslotted, the shank will not expand or change the sealing fit between the tube 9 and the wall of the shank, and the draft conditions of the pipe will be maintained indefinitely.

The closure finger also serves as a means for decorating the pipe shank, and carrying identification data. When the closure finger has been removed the interior of the stem may be easily inspected.

After use pipe shanks accumulate moisture and particles of tobacco adhere .to the moist walls of the shanks, thus producing a soggy condition, which tends to restrict the smoke passage, cor rupting the flavor of the smoke, making the smoking more difficult and inefficient, and diminishing the pleasure obtained from smoking.

At best, such pipe shanks can only be partially cleaned by the frequent use of pipe cleaners. Furthermore, standard pipe shanks have only a small passage, which presents a small opening to the atmosphere, so that it requires a long period of time to permit the air to dry out the moisture charged shank. But even this drying out process does not result in a complete ventilation and purifying of the pipe shanks.

With my improved smoking pipe, the air can freely circulate throughout the length of the pipe shank, due to the fact that the bore of the shank is relatively large, when the insertable tube 9 is removed, and this enlarged bore is in direct communication with the atmosphere for its entire length, not only through the open rear end of the shank, but through the large lateral opening or longitudinal slot ll of the shank.

This construction permits of the exposure of the interior of the shank to the direct rays of the sun, and a complete ventilating and purifying action can be thus obtained in a short period of time, with the result that the ventilated and purified pipe shank will deliver a sweeter and purer smoke stream to the smoker.

This construction also permits of complete inspection of the entire pipe shank, and enables the smoker to use any pipe cleaner with better results.

It is also possible to wash the pipe shank, if so de-v sired.

In Figs. 9 and 10 I show a pipe shank having a longitudinal slot 26, and a reduced outer end portion 21, on which is mounted the metal sleeve 28. This sleeve is formed with a longitudinal groove 29, which is aligned with the slot 26. This sleeve reinforces the shank against spreading or split:

ting, and prevents the expansion of the shank when the insertable member of the stem or mouthpiece is pushed into position or withdrawn.

Having described my invention I claim:-

1. A smoking pipe having a shank provided with a longitudinal slot opening to the atmosphere and a smoke passage communicating therewith, the slot terminating inwardly of the ends of the shank and thus providing a ventilation opening located inwardly of both ends of the shank, a bit, and;

means connected to said bit for closing both sides of the slot.

2. A smoking pipe having a shank and bowl, said shank having a lateral and completely enclosed opening in one side thereof, a mouthpiece bit insertable in the shank and provided with a sealing fit with the shank, and means carried by the mouthpiece bit having a sliding fit with the external surface of the shank to close said lateral opening.

3. A smoking pipe comprising a bowl having a combustion chamber, a shank connected to said bowl provided with an axial bore communicating with the combustion chamber and a slot in the upper wall opening the bore to the atmosphere,

a tubular member adapted for insertion in the axial bore of the shank provided with an end seat on the shank and a lower slot opening to the bore wall, a bit coupled to the tubular member, said shank slot terminating short of the shank end.

and means carried by the bit for externally closing the shank slot.

4. A smoking pipe having a bowl and a shank connected thereto, the shank having a longitud i nal passage communicating with the bowl and having an opening in the upper part of its wall terminating inwardly of the outer end of the shank, a tubular member insertedin the passage of the shank and having sealing engagement at its inner end with the wall of the said passage and normally closing communication between the said passage and the opening of the shank, a bit coupled to said tubular member, and a finger rotatably mounted on the bit and slidable on the shank to externally close the opening thereof.

5. A smoking pipe section comprising a bowl and a shank connected thereto, said shank having a smoke-duct extending axially thereof, an aperture terminating short of the rear end of the shank exposing substantially all of said duct to the atmosphere, a sealing member, and means on the rear end of the shank for bridging the sealing member over said aperture to externally seal same.

6. In combination, a pipe having a bowl and a shank; the shank having a bore from the bowl to the rear end of the shank, said shank having an upper longitudinal slot terminating short of the rear end of the bore, and communicating with said bore and with the atmosphere and provided at the exterior face of the shank with a marginal said bore and sealing the slot from end to end; a mouth piece bit secured fast to the member and adapted to withdraw the member; and a sleeve around the rear end of the shank for preventing the enlargement of the bore at said end, thereby to maintain a snug fit on the tubular member.

8. In combination, a pipe having a bowl and a shank; a sleeve around the rear end of the shank; the shank having a bore from the bowl to the rear end of the shank, said shank having an upper longitudinal slot terminating short of both ends of the bore, and communicating with said bore and the atmosphere and provided around its outer side and end portions with a marginal rabbet shoulder said sleeve being formed with a recess alined with the shoulder and extending to the rear end of the shank; a tubular member snugly fitting in said bore; a closure strip slidably fitted on said rabbet shoulder; and a mouth piece bit secured onto the end of said tubular member.

9. In combination, a pipe having a bowl and a shank; the shank having a bore from the bowl to the rear end of the shank said shank having an upper longitudinal slot communicating with said bore and provided around its outer side and end portions with a marginal rabbet groove extending through the rear end of the shank; a tubular member snugly fitting in said bore, and having a rearwardly projecting reduced threaded end and a rearwardly faced shoulder at the inner end of the reduced portion; a collar rotatably and slidably fitted on said threaded portion against the end of said shank and said shoulder and provided with an integral closure strip slidably fitting on said groove; and a mouth piece bit engaging said collar provided with an axial passage having a threaded enlargement tightly screwed on said threaded portion.

ALFRED W. BRENNINGER.

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