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| Process for fabricating foundry shapes |
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| Modular type guided beam flat display device |
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Smoker's pipe
| Details |
Inventors: Ball, David;
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:
A smoker's pipe comprises a bowl portion having a tobacco-receiving cavity below which is formed a transverse, tapering socket. A passageway interconnects the cavity with the socket. A tapering end portion of a stem part is a friction push-fit into the socket whereby the bowl portion can be rotated about the end portion of the stem part. The stem part includes a bore communicating directly with, and forming an extension of, the passageway. A primary reservoir in the lower regions of the bowl portion communicates with the bore and the passageway but is not in the direct path between the bore and the passageway, thereby keeping to a minimum the internal surface area of the pipe between the cavity and the bore. Thus the primary reservoir stores unwanted liquid in the pipe. Rotation of the bowl portion relative to the stem portion seals off the cavity from the reservoir and bore. |
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DETAILED DESCRIPTION It is an object of the present invention to produce a smoker's pipe less prone to the formation of liquid than heretofore and furthermore which enables disposal of the bowl content without contamination of the bowl by any liquid present in the pipe.
According to the present invention there is provided a smoker's pipe comprising a bowl portion including a tobacco-receiving cavity and, extending transversely of the lower regions of said bowl portion below said cavity, a tapering socket, a passageway in the bowl portion interconnecting said cavity with said socket, the pipe further comprising a stem portion one end region of which is of tapering configuration to be a push-fit in the receiving socket of the bowl portion, the stem portion being provided with a bore extending from the other end thereof to terminate in the tapering surface of said one end region of the stem portion and communicating directly into, to form a continuation of, said passageway in the bowl portion, the lower regions of the bowl portion further including a primary reservoir into the upper regions of which said bore in the stem portion communicates, the bowl portion and stem portion being rotatable relative to one another about the longitudinal axis of the stem portion between a normal position in which the passageway in the bowl portion forms a continuation of the bore in the stem portion, and a displaced position in which said passageway is disconnected from said bore.
Conveniently the end extent of the bore within the tapered end region of the stem portion makes an acute angle with the longitudinal central axis of the stem portion and terminates in the upper surface of, intermediate the length of, said tapered end region.
The primary reservoir may be formed in the tapered end region of the stem portion inwardly of the end of the bore in the stem portion, a groove in the upper surface of said tapered end region of the stem portion interconnecting said bore with said primary reservoir.
Alternatively the primary reservoir may be formed in the socket of the bowl inwardly of the tapered end region of the stem portion, the end of said stem portion defining part of the bounding surface of the primary reservoir, a groove in the upper surface of the tapered end region of the stem portion interconnecting the bore of the stem portion with said primary reservoir
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Manufacturing Materials 
