US 1931510 A
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Oct. 24, 1933. w R|NEHART 1,931,510
SMOKING TOBACCO PIPE Filed Sept. 3, 1932 M A TTORNEY,
Patented Oct. 24, 1933 UNITED STATES PATENT OFFICE Application September 3, 1932 Serial No. 631,705
My invention relates to improvements in manner of construction and general working features of a tobacco pipe in which different grades, styles and mixtures of tobacco may be smoked with- 5 out there being the tendency to clog the hole in the stem at the point where it connects with the bowl. It also makes possible the forming of a space between the end of the stem and the tobacco in the bowl which serves as a cooling chamber for the smoke as well as a pocket into which foreign matter that may have collected in the hole in the stem may be blown by the smoker, thereby giving temporary relief. v
With these'encls in View, I have attached hereto, a drawing which is a part of these specifications, using reference characters to indicate the several parts.
Fig. l is a vertical longitudinal sectional view of my pipe showing its two and only parts, bowl B and stem C fitted together and in a position to be filled and smoked.
Fig. 2 is a View similar to Fig. 1, except that stem C is extended or pulled out, showing the manner in which adjustments are made In carrying out my invention the shank or stub end E of the bowl B is provided with a relatively large bore, the full dimension of which extends to the base of the bowl cavity. The stem C has its inner portion formed for endwise adjustment in this bore so that it may either be adjusted inward so as to fill said bore completely and extend to the base of the bowl cavity, or be pulled out at will as indicated in Figure 2 to provide a chamber A. When the stem is thus pulled out it not only constitutes a cooling chamber but provides also an enlarged draft area, i. e., when the stem is adjusted inward as shown in Figure l the draft area is limited to the cross section of the draft passage D through the stem while when the stem is pulled out as seen in Figure 2 the draft area is enlarged to the full cross sectional area of the bore in the shank. Further, when the stem is extended or pulled out even to a small extent it gives a clear passage to the draft hole D in the stem C, in case some of the tobacco held in bowl B has fallen, or been pressed into, or against hole D in stem C,-i. e., the draft opening D is removed from the obstruction.
This feature is, I believe, radically difierent from all other pipes in that it simply removes the part obstructed from its obstruction instead of attempting to trap, remove or rearrange the obstruction.
In outward appearance my pipe would be similar to the usual styles, the difference being the manner in which the stem C is connected with and into bowl B, allowing stem C to extend through stub end or shank E of bowl B and on and into inner wall of bowl B.
This stem 0 which extends into and through shank E and on and into the bottom of bowl B and terminating flush with the inner wall of bowl B may be made up of one or more parts or sections and materials as economy in manufacturing and efficiency may warrant.
My pipe differs also in the fact that it is optional with the smoker as to whether he uses cooling chamber A as shown in Fig. 2 or not, as in position shown in Fig. 1. It also enables the smoker to so adjust the stem C in shank and bowl E and B that different size cooling chambers (A) may be formed.
Having now described my invention what I claim as new and desire to secure by Letters Patent is:-
A pipe comprising a bowl equipped with a shank having a relatively large passage therethrough of substantially uniform cross section throughout, extending 11111013116 bowl cavity, and a stem with a draft hole extending lengthwise completely therethrough, said hole being at all times in communication with the bowl cavity and said stem having its inner portion of substantially the same cross sectional dimension as said passage and fitted for adjustment in said passage to locate its inner end at the locality of the base of the bowl cavity or to space the same outwardly therefrom,
WILLIAM GEORGE RINEHART.