US522533A - Emma h - Google Patents

Description

(No Model.) E. H. RAYMOND.

CARPET SWEEPER.

No. 522,533. Patented July 3, 1894.

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.UNITED l STATES;A

PATENT OFFICE.

EMMA H. RAYMoNn'oE GRAND RAPIDS, MICHIGAN, AsSIeNoR To T. STEWART WHITE, THOMASIERIANT, GAIUS W. PERKINS, AND CHARLES J. REED, or

SAME PLACE.

CARPET-SWEPER.- Y

'srEcIFIcATIoN formingpart or Letterfs'-ratent1vo. 522,533, dated my 3, .1 894. llApplication led February 6,1 8'93Y. Serial No. 461,12()- (No model.)

To all whom it may concern.- l

l3e it known that l, EMMA H. RAYMOND, ai citizen of the United States, residing at Grand Rapids, 1n the county ofv Kent and State ofi Michigan, have inventedcertain new and use ful Improvements in Carpet-Sweepers; and I' do hereby declare the following to be a full,

- clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same. l

vMy invention relates to rimprove'n'ients in short distance at each revolution of the brush in thedirection that the sweeper is moved, thus lifting the dust and other matter by a sort of scraping movement of the ends of the brlstles upon the surface of the carpet. The brush has usuallybeen rotated by means of drlvewheels supporting the case and engag- Ing pulleys on the brush shaft, said pulleys havlng considerably less diameter than the brush (usually about onetl1ird). In my improved sweeper the lower side of thepbrush moves relative to the case, opposite to the' dlrection in which the device is moving, and the ends of the bristles move about its axis, but slightly faster than the sweeper moves over the carpet, and the brush operates to throw the dust and other matter into the pans, solely bythe flexibility of the bristles as they recover their normal radial position, after being bent as will more fully appear in what follows: reference being had to the accompanying drawings, in which-- Figure l is a vertical section in the line of movement Aof a device embodying my inven' tlon; and Fig. 2.a transverse vertical section on the line 2-2 of Fig. l. i

Like letters refer to like parts in both gures.

A represents any suitable case, having the bail attached at B, and a rear shoe C to support the side next the bail, the other side being supported by the vbrush rolls E, E; said case is. also provided with any convenient dust pans G, G.

F, F, are hangers having cone centers F', F', upon which the brush D is journaled. These described parts may be varied as most convenient and are not essentiallynovel.

D is the brush shaft, in which are inserted flexible radial bristles D', forming a cylindrical brush. These bristles should be somewhatlonger than usual, and more evenly and closely arranged, and also of a quite flexible quality. At each vend of said brush shaft is attached Iaroll, or wheel E ,of somewhat less diameter than the brush, andprovided with suitablecountersunk centers to receive the centers F', upon which they rotate in unison upon the handle at B will bend said bristles as shown in Fig. 1 and bring the r'olls E in contact with the carpet. As thev device is moved forward the ends of the bristles move slightly faster owing to the difference in diameter of the rolls E and the brush. This serves to determine the direction in which the bristles will bend as they contact the carpet at their ends, which bending brings the ends of the bristles substantially in line with `the outer surface of the rolls E. The bristles are thus retarded at their ends in their movement around the axis of the shaft D, and also thrust endwise into the interstices and de pressions of the carpet. The brush thus rolls forward over the carpet, and the ends of the bristles being eventually released from the same, suddenly recover their normal radial position, thus by their flexibility throwing any loose particles of dust, sand, lint,for other matter on or in the carpet over the edge of, and into the rear pan. This exibility of the bristles is'found amply sufficient for this purpose, and the vertical penetration' of the brush is much greater by virtue of the endwise thrust of the bristles as described, being especially eiective in removing heavy p irticles, such as sand, fine gravel, and the Another desirable result is found to be that the brush and carpet are not worn as rapidly, and also there is but little tendency to wind strings, thread, hair and the like upon the brush; the peculiar movement of the bristles tending to throw such oft the brush and into the pan instead. This device is also more effective in picking up bits of paper and the like, the pressure ofthe bristles, crushes the paper into the carpet, which tendsito raise the end of said paper and canse the same to pass above the angle of the advancing pan, and as the brush finally leaves the paper, the bristles engaging its edge will throw it into the same as they spring to their normal radial position. It is evidently unnecessary to connect the rolls E with the brush, for the reason that their function is only to support the case when the sweeper is in actual operation, and determine the distance of the axis of the brush above the floor; journals for said rolls may be provided at any other convenient points. The brush is revolved on its axis, by the bent and shortened bristles in contact with the carpet, the ends of which move sloweras they approach the axis of the brush shaft, the only purpose of attaching the rolls E to the brush being to save separate journal bearings. It should be clearly understood that the function of said rolls is not to rotate the brush, but only to support the ease, and carry the same over the carpet when the sweeper is in actual operation.

I do not wish'to be understood as claiming broadly a carpet sweeper in which the brush is rotated by contact of its bristles with the carpet and in which said bristles are of such length and flexibility as to be thrust endwise into the carpet, and Iiexed laterally and will forcibly assume their normal position, since I ain aware that such is not broadly new with me and that an application for a patent to cover it has been made by the inventor.

l. In a carpet sweeper, a cylindricalbrush, having radial iexible bristles, rolls of less diameter than said brush attached to the same, said rolls and brush arranged to roll in contact with the carpet, substantially as and for the purpose described.

2. In a carpet sweeper, the combination of the case, hangers therein having inwardly eX- tending projections, a brush journaled upon said projections, rolls, secured to the ends of said brush and having countersunk centers receiving said projections, said brush having its bristles Iiexible and extending considerably below said rolls and rotating the brush by engaging the tloor, and a dust-pan located in the case adjacent to said brush, substantially as described.

In testimony whereof Iattix my signature in presence of two witnesses.

EMMA II. RAYMOND. Witnesses:

LUTHER V. MoUL'roN, Lois MoULToN.

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