US1770338A - Chimney cleaner - Google Patents

Description

I July 8, 1930. I KOHL 1,770,338

CHIMNEY CLEANER Patented July 8, 1930 UNITED STATES PAUL KOHL, OF WAUSA U, WISCONSIN, ASSIGNOR TO ANKO CHIMNEY CLEANING MA- 7 PATENT OFFICE CHINE COMPANY, OF'WAUSAU, \VISCON SIN A PARTNERSHIP CON SISTING- THEO- DORE G. KOHL, HARRY J'. HEIN, WILLIAM N. WALKER, AND PAUL KOHL CHIMNEY CLEANER Application filed October 3, 1927.. Serial No. 223,715.

This invention relates to a chimney cleaner, and particularly to a portable cleaner adapted to be lowered into a chimney or'flue to dislodge the accumulated soot therefrom.

An object of the invention is to provide a chimney cleaner which is inexpensive to man ufacture, and light in weight, yet durable 1n use.

A further object is to provide a chimney cleaner which is simply and easily adjusted to various sizes of fiues.

A further object is to provide a chimney cleaner with an .open frame work providing ample air space, so that the device will not clog up with the dislodged soot but will allow the same to fall to the foot of the flue.

A still further object is to provide a chimney cleaner whose scraping members can readily adjust themselves toinequalities in the size of the flue being cleaned, and which will not am against projections therein.

These and other objects will be apparent from the following description taken in connection with the accompanying drawings wherein:

Fig. 1 shows the chimney cleaner in side elevation;

Fig. 2 is a plan thereof; Fig. 3 shows a detail; and Fig. 4 shows a detail of a modification. Referring to the drawings, the cleaner comprises a central rod 1 having fixedly secured near one end thereof a-spider 2. An eye 3 is provided to receive a rope or chain by a means of which the cleaner is lowered intov selves to variatlons 1n the flue and are not and pulled out of the flue to be cleaned.

Pivotally connected tothe four arms of spider 2 are links 4. The lower ends of links 4 are perforated to receive the bent-over ends of four coil springs 5, the springs thus forming a rectangle. Each spring 5 is enlarged at its center about midway between the points of connection to arms 4, and tapers toward each end. 1

Pivotally' connected to links 4, by means of the bent-over ends of springs 5, are a second set of arms 7. Arms 7 are pivoted at their lower ends to a spider 8, said spider being freely slidable on central rod 1. It will be seen that springs will tend to slide the I movable spider 8 downwardly as seen inv as the means for pivotally connecting the arms 4 and 7 in pairs, but it will be under- .stoood that the-invention is not so limited,

since separate pivot pinsmay be provided at this point. The springs 5 may be connected to the upper arms 4 or the lower arms 7, or both, the only essential being that they be connected adjacent the points of connection of these arms The springs .5 are shown" as connected to one pair ofarms in Fig.4, a separate pivot pin being'provided for thearms 4 and 7. I i Below spider 8, the central arm li s/surrounded by a coil spring 9 hearing at one end against spider 8 and retained at its other end by a cotter pin 10, said cotter pinpassingthrough oneof a series ofholes 11in central rod 1. y

An eye 12 is attached to the lower end of central rod .1 to support a weight (not cotter .pin 10.111 the different holes 11, to

thereby adjust the cleaner for various sizes of fines. Springs 5 function as effective scrapers for the flue,-since they can adjustthemeasily caught upon obstructions. The open frame allows the dislodged soot to fall freely through the cleaner.

I have shown my cleaner as'having four sets of toggle arms but it'will be understood that the invention is not so limited, since I may usemore orless than this number, de-

pending upon the shape of the fiue to be cleaned.

Various other changes in shape, size and arrangement of parts may be made without departing from the scope of this invention as expressed in the following claims.

I claim:

1. In an apparatus'for cleaning a chimney or flue, a central member, a pair of spiders thereon, a plurality of arms connected to each spider, the free ends of said arms being connected in pairs, and a coil spring between each pair of arms, said springs defining generally a polygon substantially similar to the cross-sectional shape of the chimney flue to 4 be cleaned.

2. The structure asin claim 1, wherein each coil spring is enlarged at its center and tapers towards its ends. 7

3. The structure as in claim 1, wherein one of said spiders is slidable on said central member and a coil spring presses the same toward the companion spider, said coil spring surrounding said central member and pressing at one end directly on said spider and at the other end against a member adjustable along said central member.

4. A chimney cleaning device comprising a plurality of coil springs connected end to end, to form aclosed polygon, said springs having enlarged portions substantially midway between the adjacent junctions, and tapering from said enlarged portions toward their ends.

5. A chimney cleaning device comprising a plurality of contractive coil springs connected to provide resilient scraping means conforming substantiallyto the cross-section of the chimney flue, and adjustable resilient means normally tending to hold said springs in their expanded state whereby the effective scraping surface may be varied.

6. In apparatus for cleaning a chimney or flue, a central member, a pair of spiders thereon, one of said spiders being loosely connected to said central member, a plurality of arms connected to each spider, the free ends of each of said arms being arranged in pairs, and a coil spring between each pair of arms, the ends of said coil springs passing through perforations, in said upper and lower arms to'thereby pivotally connect the same.

In testimony whereof, I aflix my signature.

PAUL KOHL.

Images