US1643231A - Tobacco pipe - Google Patents

Description

Sept? 1927. G. WILSON TOBACCO PIPE Filed Nov. 20, 1925 Patented Sept. 20, 1927.

PATENT OFFICE.

enonen H. wrnsoiv, or LOUISVILLE, KENTUCKY.

TOBACCO PIPE.

Application filed November 20, 1925.

This invention relates to tobacco pipes and proposes the construction of a pipe in which the stem portion thereof is provided with means for mixing a current or currents of cool air with the heated smoke as it emanates from the smoke passage in the stem, so

that excessive salivary secretion incident to the contact of heated smoke with the mouth tissues is avoided, minimizing the tendency to expectorate as well as permitting complete combustion of tobacco into the pipe by avoidance of leakage of saliva back into the stem which occurs when the flow of saliva is unduly stimulated.

A further object of the invention is to provide ventilating means for the stem ex posed exteriorily thereof so as to be accessible at alltimes for cleansing or sterilizing.

Other objects of the invention will appear 2 as the following description of a. preferred embodiment thereof proceeds.

In the drawings Figure 1 is a perspective view of a pipe incorporating the distinctive features of my invention.

Figure 2 is a or mouth-piece.

Figure 3 is a cross section taken along the line 33 of Figure 2.

plan view showing the stem figures, the stem 1 is provided with the superficial grooves 2, which may be one or more in number, and extend preferably but not necessarily, longitudinally of the stem.

The grooves are of such narrowness in width as to prevent the lip inadvertently sinking thereinto and occluding the passage of air into the mouth, while at the same time permitting the lip to be used as a valve, when desired, forclosing said passages when applying forced draft to the pipe. The lower side of the stem is made without grooves so as to avoid the risk of saliva leaking along the stem, as well as to insure control of the passages solely by the upper lip, and they terminate at the inner end of the stem adjacent the smoke passage 3.

When smoke is drawn into the mouth a Referring now in detail to the several Serial No. 70,345.

strealn or streams of air at atmospheric temperature are simultaneously drawn in through the grooves 2, mixing with the smoke and reducing the temperature there of, greatly enhancing the pleasure of smokmg. Y

While the effect of a cool smoke is primarily physiological in that it does not excite an excessive flow of saliva, yet it re-acts to the benefit of the pipe in that saliva does not leak down into the stem, impairing perfect combustion of the tobacco, as happens when the saliva flow is stimulated. F urthermore, perfect combustion retards the fouling of the pipe so that a deliciously cool mellow smoke may be enjoyed for a long time, this being made possible either directly or indirectly by the presence of the grooves 2.

The arrangement of the ventilating grooves on the outside of the pipe stem is one of the distinctive features of the invention since it prevents the grooves becoming obstructed by foreign 'matter, .and renders thenr accessible to mechanical cleansing means as well as to washing and other means of cleansing or sterilization.

While I have above described what I be lieve to an appropriate and practical embodiment of my invention yet it is to be understood that the utilization of construction hereinbefore described and illustrated need not be adhered to in practice, except in so far as theyare prescribed by. the expressed terms of the appended claim.

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

In a tobacco pipe, a stem having an external groove or grooves on the upper side only extending longitudinally of said stem from a point exposed to atmosphere when the pipe is in use to a point adjacent the orificeo-f the smoke passage.

In testimony whereof I have hereunto set my hand.

GEORGE H. WILSON.

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