US2166537A - Tobacco pipe - Google Patents

Description

y 19-39- B. M. SHOEMAKER 2,166,537

TOBACCO PIPE Filed Oct. 12, 1934 crnar d l /1oem'qker INVENTOR v ATTORNEY Patented July 18, 1939 UNITED STATES PATENT OFFICE 1 Claim.

My invention relates to tobacco pipes, and,

more particularly to the type in which the bit and bowl portions are separably united to each other.

The principal object of my invention is to maintain the smoke passage in the pipe substantially free of solid deposits, making for general cleanliness in the interior of the pipe and sweet, cool smoking qualities.

I accomplish this object by arranging within the pipe a readily replaceable absorptive mem- I her which is designed to receive condensate and solid matter from the smoke as it passes through the pipe. The preferred form of such absorptive member is an ordinary pipe cleaner which, as is well known in the art, comprises a highly flexible metallic core portion carrying a large number of bristles extending therefrom.

One embodiment of the invention is illustratively exemplified in the accompanying drawing in which Fig. 1 is a longitudinal sectional view of a pipe; Fig. 2 isa transverse sectional view on the line 22 of Fig. 1; Fig. 3 is a transverse sectional view on the line 3-3 of Fig. 1; Fig. 4 is a broken elevational view of a metallic tube or liner constituting one of the pipe elements; Fig. 5 is an elevational view broken intermediate its ends, of the form of absorptive member used in the present construction.

Referring to the drawing, and more specifically to Figs. 1 to 3, l0 denotes the pipe bowl, II the bowl stem, [2 the bit and I3 the tenon by which the bit and bowl stem are separably united. The bowl stem has the usual well l4 and the bit the usual smoke or draft passage IS. The bit I2 is further provided with three bores, I51), I and Hid forming a continuation of the smoke passage IS. A metal tube I6 is provided which is longitudinally slotted at its lower por- 'tion and through the slot l8 the products of well be omitted. The tube l6 lies in the bore 15b. The pipe cleaner H is doubled upon itself and'the two legs or branches of thepipe cleaner enter the bores Ho and l5d' and rest there during use of the pipe. The bores I50 and l5d parallel the bore I5b at opposite sides of its longitudinal centre. The embodiment of the invention described is a very desirable construction inasmuch as it receives a standard length pipe cleaner, which in its folded position in the passage I4 is ofiset from the axis thereof, and which when rotated or twisted with the tenon to seat the same thefolded strands of the cleaner engage and brush or clean the wall of the bore.

The operation of the device is very simple. The pipe is sold complete with the pipe cleaner in position. After the pipe has been used for a length of time it will be found that the pipe cleaner is practically saturated with deposited matter. Thereupon the pipe cleaner is simply removed from the pipe and a new one inserted in its place. If desired, the cleaner may also be used in the ordinary manner, naturally before it has become fouled, by moving it back and forth once or twice through the draft passage l5 and/or tube Hi.

What I claimv is:

In a tobacco pipe, a bowl portion having a stem provided with a central bore, and a bit portion for said stem, the bit having a centrally disposed smoke passage and grooves arranged in the bottom of said passage, a tubular liner mounted in the smoke passage and adapted to project into the bore of the stem, said liner having its under side provided with a longitudinal slot opening into the grooves and bottom of the central bore of the stem beyond the bit, and an absorptive member mounted in said grooves and arranged under the liner throughout its length to receive condensate from the liner and to wipe the wall of said bore when the bit is turned.

BERNARD M. SHOEMAKER.

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