US2587069A - Pipe bit - Google Patents

Description

Feb. 26, 1952 SP. SHARRON PIPE BIT Filed Oct. 12, 1949 (I I/1g 15 III} 1.9

2 Z0 20 12 19 1 J6 J 7 L g 18 J INVE1{TOR. .15 J2 B JAM MW mu! 6' W ATTflH-NE'YS Patented Feb. 26, 1952 UNITED STATES PATENT OFFICE PIPE BIT Samuel Paul Sharron, Brooklyn, N. Y.

Application October 12, 1949, Serial No. 120,905

Claims. (Cl. 131229) This invention relates to a bit for smoking pipes or the like, including cigarette holders and cigar holders. This application is a continuation-in part of applicants application Ser. No. 663,186, filed April 18, 1946, now abandoned.

An object of the invention is to provide such a bit in which the smoke, as it is drawn into the users mouth, is directed away from the tongue in order to reduce or eliminate the burning sensation frequently observed with bits of ordinary form.

Another object is to make the bit substantially dripless by disposing the smoke channels so that moisture from the mouth cannot readily, if at all, flow into the pipe or holder.

A further object is to provide certain improvements in the form, construction and arrangement of the several elements of the bit by which the above named and other objects may eifectively be attained.

A practical embodiment of the invention is shown in the accompanying drawing, wherein:

Fig. 1 represents a top plan view of a pipe bit constructed as proposed herein;

Fig. 2 represents a side elevation of the pipe Fig. 3 represents an end elevation of the bit, viewed from the right of Fig. 2;

Fig. 4 represents a horizontal axial section taken on the line IV--IV of Fig. 2;

Fig. 5 represents a top plan View of a preferred form of bit;

Fig. 6 represents a vertical section taken on the line VIVI of Fig. 5;

Fig. 7 represents a vertical section of the bit shown in Fig. 5 with the cap piece removed, and

Figs. 8, 9 and 10 represent, respectively, plan, end and side views of the cap piece.

Referring to the drawings, the bit I, which may be of any desired length or general style, is provided with an enlarged tip 2 having such smooth contours as may make it comfortable to the user. The tip 2 may be vertically thickened as compared to the shank 3 to provide transverse ridges 4, 4 across the bottom and top, or may be otherwise shaped as desired.

The bit is axially drilled or molded to provide a main smoke channel 5, the rear end of which terminates inside the tip 2 and a pair of side channels 6, 6 extend from vents 1, I on the sides of the tip to points of intersection with the channel 5 adjacent its end. At least the outer ends of channels 6, 6 preferably lie at angles of less than 90 with the channel 5, in a forward direction, and angles between 30 and 60 are particularly suitable and convenient.

At least the inner ends of channels 6, 6 are curved inward toward each other so as to provide a smooth continuous channel from side .to side of the bit, such a channelbeing of great im, portance in facilitating the cleaning of the bit by means of the conventional pipe cleaner. The direction of outward flow of smoke is determined by the direction of the channels immediately adjacent the vents l, I, and moisture is prevented from flowing into the main channel so long as any parts of the side channels (particularly their inner ends) are located higher than the vents l, 1 during normal use.

Figs. 5 to 10 show a two-part construction which has been found most convenient in actual practice; these figures showing also an adaptation of the invention to the form of bit commonly used with a straight stem pipe. In this form the main smoke channel 8 is shown as being developed from cylindrical to flat shape toward the tip end of the bit 9 and said end is provided with a horizontal slot l0 having parallel upper and lower wall surfaces ll, l2 and a convexly curved inner wall surface l3, the outer ends of the latter lying at an angle of approximately (or less) with respect to the channel 8. The end surfaces [4 of the bit are preferably straight.

A cap piece l5 has straight wall surfaces l6 of the same size as the end surfaces M of the bit, and is provided with a projecting tongue, having flat parallel upper and lower surfaces [1, I 8 and a smooth concavely curved inner wall surface IS; the thickness of the tongue being such that it will fit snugly into the slot l0 and the length of the tongue being less than the depth of the slot measured along corresponding lines parallel to the main bore of the bit. The cap piece is assembled with the bit as indicated, the several matching surfaces being cemented together, and the completed bit having (between the wall surfaces l3 and 19) side channels 20, 20 which may correspond as closely as desired with the channels 6, 6 of Figs. 1 to 4.

In such a two-part bit very attractive effects may be obtained by making the cap piece in a color which contrasts with the color of the main bit portion, so that bits embodying the present invention are readily distinguishable from conventional bits. The two-part construction is adaptable to bits of any type, including the type shown in Figs. 1 to 4, as will readily be understood, and other detail modifications can be made as desired.

In operation, it will be seen that smoke drawn in through the main channel 5 can only enter the mouth through the channels 6, 6 and vents I, 1, (or the channels 20, 20) which direct the smoke laterally along the sides of the mouth and away from the more sensitive parts of the tongue. Furthermore, when the front of the bit is inclined downward, as is normal during use, the side channels shown will slope upward from the vents to the point of intersection with the main channel so that moisture from the mouth will not fiow intoqthe bitand any'moisture which may enter the side channels will immediately run out again.

What I claim is:

1. A bit of the character described comprising, a shank, a tip, a main smoke channel extending through the shank and tip, at leastthe tip being provided with a slot the baseof which defines a generally convex wall surface extending from the main smoke channel to both sides of the bit, and a cap piece adapted to fit against the end of the tip and having -a=tongue which fits in-the slot, is,'-co-extensive laterally' with-said slot. and -has. an inner: wall ;-deflning a smoothly concave surfacewspaced from the -said, convex wall surfacawhereby the space between said surf aces constitutes -a -pair of side channels -ex+ tending from --theend of the-main channel tovents-in the sides of the bit which are positioned forwardly of said end of the main channel.

2. Abitaccording to claim 1 in-which the upper ,andlower surfaces of the slot are parallel. 80

3. A bit according to claim 1 in which the tip terminates in vertical surfaces above and below theslot and in which the cap piece has vertical wall surfaces above and below the tongue, said surfaces on the cap piece being of the same size and shape as the corresponding surfaces on the tip.

4. A bit according to claim 3 in which the upper and lower surfaces of the slot are parallel.

5 A bit according to claim 1 'in which the outer ends of the said convex and concave surfaces lie at an angle of 60 or less to the axis of the bit in a forwardly direction.

SAMUEL PAUL SHARRON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 757,760 Manahan ,Apr. 19,1904 2,079,961 Harrison r May 11, 1937 2,323,243 Ritter h June 29, 1%3

FOREIGN PATENTS.

Number Country Date 10,987 Great Britain of 1894 354,272 Great Britain Jan. 28, "1930

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