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Publication numberUS417566 A
Publication typeGrant
Publication dateDec 17, 1889
Filing dateSep 12, 1889
Publication numberUS 417566 A, US 417566A, US-A-417566, US417566 A, US417566A
InventorsNorman Knowles
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Norman knowles and william philipson
US 417566 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Mode1;)


l GIRGULAR BRUSH, No. 417,566;

Patentedv Deo. 17, 1889.

3fm/vanto@ @WVM/Leona@ Zw n mm @aua .ahw Ww .T a M ua ww UNITED STATES PATENT OFFICE.



SPECIFICATION forming part of Letters Patent No. 417,566, dated December 1'?, 1889. Application filed September 12, 1889. Serial No. 323,730. (No model.) Patented in England October 27, 1888, No. 15,480.

To all whom it may concern:

Be it known that We, NORMAN KNOWLES, cotton-spinner, of Egyptian Mill, Bolton, and WILLIAM PHILIPsoN, engineer, of Holland Street Iron Works, Astley Bridge, near Bolton, both in the county of Lancaster, England, have invented new and useful Improvements in Circular Brushes, (for which we have obtained apatent in Great Britain, No. 15,480, dated October 27, 1888,) ot' which the following is a specification..

The object of this invention is to -make brushes with long bristles as effective as those with short bristles, thereby dispensing with the necessity of cutting or singeing the brisfles of new brushes, so common at the present time.

It is a well-known fact that long bristles in brushes are weak, owing to their length. Consequently they bend when operating on the surfaces they are intended to clean, which diminishes the brushing or cleansing power of the same, as well as wearing the side of the bristles. To overcome this defect it is a common practice to shorten the length of the bristles by cutting or singeing, which causes the brushes to be speedily worn out.

Figure l is a sectional elevation of our improved circular brush. Fig. 2 is a longitudinal elevation, and Fig. 3 is a sectional elevation through line A B in Fig. 1.

On the center A is secured the block or body B, provided with the slots or recesses C, to receive the adjustable bristle-stocks D. The perforated Aplates E are secured to the block or body B by the screws F. The bristles I-I protrude through the perforations G in the plates E,as shown in Figs. 1 and 3. The bristlc-stocks D are operated in either directioni. e., up or down-in the slots or recesses C by the screws I, according to the length of bristle or the amount of rigidity required. The screws I are mounted in the bottom end on the plate K', and are secured bythe plates u L and screws M. The screws I pass through Several screws I are provided in the length of the brush to increase the stability or iirmness of the brush-stocks D, to prevent bending or deliection when the brush is in opera-` tion.

Each end of the brush-block or body B is fitted with the metallic ends P, secured by 6o screws or their equivalents.

In circular brushes at present employed for stripping carding-engine cylinders and doffers the bristles are placed spirally once round the body in the length of the brush, whereas according to our present invention the spiral is formed in about one-fifth, or thereabout, of the diameter. Owing to the spirals of our improved circular brush being reduced in length and the firmness of the 7o bristles increased, the same can be driven or rotated at a much slower speed than hitherto, which will prolong the life of the same and effect a great saving in the cost of renewals.

This improved brush is equally applicable for carding-engines and combing and other machinery wherein circular brushes are employed.

If desired, our improved brush can be made without spirals, the slots in the block orbody 8o B being formed in line with the center line of same.

The brush-center A is provided with the pulley R, by which it can be driven from any convenient source.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is y In a circular brush, the combination, with the body B, having the slots or recesses C, 9o bristle-stocks D, and perforated plates E, of the screws I, mounted in the bottoms of the slots C, having a threaded engagement with' the bristle-stocks, and adapted to be operated through the plates E to move the said bris- 95 tle stocks, substantially as described.

In testimony whereof we afIiX our signatures in presence of two Witnesses.




529 C'hesly Old Road, neem" Bolton. EDMUND CHADWICK,

92 St. Georges Road, Bolton.

Referenced by
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US2568772 *Apr 20, 1946Sep 25, 1951Birtman Electric CoAdjustable brush assembly for vacuum cleaners
US2601693 *Dec 9, 1947Jul 1, 1952Hoover CoRotary brush for suction cleaners
US3019463 *Sep 2, 1959Feb 6, 1962Mitchell Samuel LPower hair brush
US3134123 *Oct 20, 1960May 26, 1964Osborn Mfg CoSegmental rotary brush
US3139641 *Jun 22, 1961Jul 7, 1964Power Brushes IncCylindrical brush construction
US3186021 *Feb 20, 1959Jun 1, 1965Tennant Co G HPower sweeper
US5113559 *Sep 1, 1988May 19, 1992Constructions Mechaniques F. Laroche & FilsRotary drum with points for a textile machine, an opener, a desintegrator, a tearer
US6125495 *Nov 20, 1998Oct 3, 2000Tennant CompanyVariable diameter cleaning brush
US20080276414 *Oct 18, 2006Nov 13, 2008Nilfisk-Advance, Inc.Floor Maintenance Machine Using a Spiral, Tufted, Cylindrical Brush
US20100038346 *Aug 18, 2008Feb 18, 2010Xiao Lin WuAuxiliary welding apparatus
Cooperative ClassificationA46B13/006