US1249618A - Pipe-bowl cleaner. - Google Patents

Description

W. R. GROCOFF.

PIPE BOWL CLEANER.

APPLICATION FILED JAN. l2. I917.

Patented 10 11,1917.

WI T/I/ESSES Wazaw .6? I ma A TTORIVEYS WILLI a. eaocorr, or niurmarmu, rnnnsrnvama.

IIPIPJEFJBO'WL antenna.

Specification of Jtetters Patent. Pater 1 11! Application filed January 12, 1917. Serial No. 141,959.

scription.

This invention relates to smoking pipes and has particular reference to means for scraping or, cleaning the interior of a pipe bowl.

Among the objects of the invention is to provide a cleaning device of the character indicated of av simple, neat and effective construction which may becarried in ones vest pocket or elsewhere with the occupancy of a minimum amount of space. 7

With the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein,

' reference characters designate the sameparts in the several views, and in which- Figure 1 is a perspective view of the conventional form of smoking pipe, the bowl of which is in section and indicating one of my improved cleaners therein;

Fig. 2 is a side elevation of the cleaner; Fig. 3 is an edge elevation of the same; Fig. 41 is a horizontal sectional detail on the line H of Fig.2 having reference only to the shank and cross head; and

Fig. 5 is a view similar to Fig. 4, but indicating a modification of the cross head.

Referrin now more particularly to the drawings, show a pipe bowl cleaner comprising a substantially straight rib or shank 10, having its upper end swaged down at 11, where it is secured to a flat finger piece 12. The longer axis of the finger piece is perpendicular to the axis of the shank through which the shank may be rotated.

The opposite end of the shank is preferably cut ofl square or in a plane perpend'cular to the axis of the shank. 1S

13 indicates a cross head secured to the intermediate portion of the shank 10 and extending from opposite sidesof the shank, the axis of the cross head being perpendicularto that of theshank. The cross head may be constructed in various ways, either as a solid piece of metal or other material, or as a short section of tubing 13, as indicated in Fig. 5. This piece of tubing may be projected through a hole formed in the shankand braced in place rigidly. The ends ofthe cross head are provided with slots 14 lying in a plane coinciding with the axes of t suitable, flat, strong material, but of peculiar form. The exterior edge of each blade is rounded at its lower end orcurved according to the type of bowl for which it may be specially designed, while the upper end of the. blade may be straight. The inner edge of each blade, furthermore, is provided with an angular indentation at 18 providing a shoulder 19 which is adapted to strike against the square end of the shank to limit the movement of the blade toward the finger piece. The blade substantially at its middle portion is embraced by the wall of the cross head on each side of the slot the blades are both adapted tovbe rotated flexibly and positively through the rotation of the shank and cross head around the axisof the shank. The blades, however, are

free to move inwardly along the slots ld and I provide means also whereby the u dpe and lower ends of each blade are adapte to be tilted inwardly toward the axis of the shank independently, so as to more completely or readily conform to the shape of the bowl.

,-The connecting means between the blades and the shank consists of a pair of spring wires 20 and 21. Each of these wires is in the nature of a spiral, flattened in a direction perpendicular to the axis of the spiral, and each wire is provlded at its opposlte ends with short angular portions 22 extending through holes 23 in the upper and lower ends of the blades. More specific my, the spring 20 extends from the upperfend of one of the blades down along one side of the cross head, then through the hole 16 'at the free end of the shank and thence up along the other side of the cross head to the top of the other blade where it is 70 cross head are a pair of blades 17' of any 7 fastened pivotally, the ends in all cases beother spring may be described as leading" from the connection 2 1 at the lower'end of the first mentioned blade, thence up along theback of the cross head, thence forwardly through the shank hole 15, thence downwardly on the front of the cross head to the hole 23 at the bottom end of the opposite blade. It will thus be seenthat the two springs have parallel bars lyingon the same side of the device. Each blade thus has in effect two independent resilient supports, but the nature of the spring supports is such that the blades will ordinarily not be withdrawn from the slots 14 and area'lways subject to movement toward each other according to the compression set up against the blades due to the forcing of the device into the pipe bowl, When the rounded ends of the blades are forced into a comparatively small bowl, the shoulders 19 engage the end of the shoulder and prevent the turning of the blades on their connections toward the finger piece. After the device is introduced into the pipe bowl, it may be rotated in either direction for the purpose of scraping the inner surface of the bowl.

I claim:

a 1. .In a pipe bowl cleaner, the combination of a shank having a fiat end, means wherei by the shank may be rotated around its axis,

a pair of blades lying in the same plane on opposite sides of the shank and movable radially toward and from the shank, means extending between the shank and the blades serving to cause the rotation of the blades with the shank, the blades being formed with curved outer edges and with angularly formed inner edges providing shoulders adapted to cooperate with the flat end of the shank to limit the movement endwise of the blades, and means to prevent the separation of the blades from the shank.

2. In a pipe bowl cleaner, the combination of a straight rigid shank, means whereby the shank may be rotated around its axis, a cross head extending in opposite directions from the intermediate portion of the shank, the ends of the cross head being slotted in a plane coinciding with the axis of the shank, a pair of blades lying in said plane and fitted loosely in said slots for movement toward and from the shank, and resilient means connectingthe ends of each blade independently to the shank.

3. In a pipe bowl cleaner, the combination of a shank, means whereby the shank may be rotated, a cross head rigidly secured to the shank and extending in opposite directions therefrom, a pair of rigid blades lying on opposite sides of the shank and having connection with the cross head for positive rotation of the blades from the shank, the shank being provided with diametrical holes extending therethrough above and below the cross head, and a pair of fiat spiral springs extending through said holes and having pivotal connections with the several ends of the blades providing for resilient

Images