US2128822A - Brush - Google Patents

Description

. Aug. 30, 1938. E. D. HORNE 2,128,822

' BRUSH Filed Oct. 11, 1937 .ZZward 3 15 07726 INVENTOR WITNESS Patented Aug. 30, 1938 UNITED STATES PATENT OFFEQE 1 Claim.

The invention relates to a brush and more especially to a cylinder brush.

The primary object of the invention is the provision of a brush of this character, wherein the interior surface of a pipe or other cylindrical piece of work can be readily cleaned so that the soldering of fittings therewith can be successfully carried forth particularly when sweat soldering one to the other.

Another object of the invention is the provision of a brush of this character, wherein the same is self-adjusting for effecting the internal cleaning of a cylindrical body, pipe or the like and is usable with plumbers for soldering operations, the brush being susceptible of fitting within diiferent cross sectional sizes of cylinders, pipes or the like.

A further object of the invention is the provision of a brush of this character, which is simple in its construction, thoroughly reliable and effective in operation, easy of application, strong, durable, and inexpensive to manufacture.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention and pointed out in the claim hereunto appended.

In the accompanying drawing:

Figure 1 is a side elevation of a brush constructed in accordance with the invention.

Figure 2 is a sectional view on the line 2-2 of Figure 1 looking in the direction of the arrows.

Figure 3 is an enlarged sectional view taken on the line 3-3 of Figure 2 looking in the direction of the arrows.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally the brush constituting the present invention and in this instance comprises a cylindrical stock constituting a barrel 5 of the required length open at opposite ends and having in diametrically opposite sides near one open end elongated longitudinally disposed slots 6 through which project and in which operate a pair of lever-like links I which turn on a pivot 8 common thereto and carried in the bifurcated end 9 of a plunger l0 adapted for rotation in any desirable manner.

The links 1 exteriorly of the barrel 5 have swingingly connected thereto elongated outwardly arched brush heads H, the links 1 being pivoted at l2 to the said heads ll intermediate of their length and these heads are fitted with brush bristles [3.

Surrounding the plunger H1 is a coiled spring l4, active in compression, one end being seated against a washer l5 loose upon the plunger Ill and adapted for contact with the barrel 5 at its end next thereto while the other end of the spring is seated against a cross pin l6 fitted in the plunger Ill. The spring M in compression holds the heads ll close to and in contact With the barrel 5 at diametrically opposite sides thereof and by moving the plunger l0 relative to the barrel 5 in one direction the heads I I through the action of the links 1 are moved outwardly and their pivotal connection with the links enables self-adjustment of these heads in conformity with the interior wall formation of a cylinder, pipe or the like, a portion of a pipe being denoted at H. Now by rotation of the plunger from any suitable source of power, the bristles l3 will act upon the inner wall of the pipe I! for the thorough cleaning thereof so that the sweat soldering of this pipe with a fitting can be accomplished.

Built exteriorly on the barrel 5 at diametrically opposite sides thereof are laterally extending stop wings l8 which are step shouldered at H! and the purpose of these wings is to limit the insertion of the brush in a piece of Work of varying diameters as is illustrated in Figure 2 of the drawing.

The brush hereinbefore described is designed to clean the fittings used in the plumbing. trade for connecting water piping and makes such fittings ready for service in sweat soldering of joints in such piping or the like.

The outermost end of the barrel 5 has fitted therein a picking prong 2|] usable for cleaning purposes.

What is claimed is:

A brush of the kind described comprising a barrel, shaft means movably fitting in the barrel, a plurality of bristled or brush heads positioned about the circumference of the barrel, a toggle, each link of which is pivoted to a head at one end and pivotally connected at the other end to said shaft means, the said barrel having apertures for receiving the linkage and providing an abutment therefor, resilient means associated with the barrel and shaft means to normally hold the brush heads against the barrel, and a plurality of radially spaced stop wings carried by the barrel, said stop wings having symmetrically stepped shoulders, one group of which abut against the end of a pipe being cleaned whereby axial movement of the said shaft means with respect to said stop wings may spread the brush heads into operative engagement with said pipe.

EDWARD D. HORNE.

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