US1468215A - Carpet sweeper - Google Patents

Description

Sept. 18, 1923. 1,468,215

J. sHo RRbcK CARPET SWEEPER Filed July 27, 1921 3 Sheets-Sheet 1 I d W 11.. .mm ..i.

6 Fig.3 INVENTOR Patented Sept. 18, 1923.

; .um'reg av sra'ra s 11,468,215 sic JAMES LIGHTFOOT snonnook. or acoameron, ENGLAND, essrenon'ro nN'rwIsLE. AND KENYON LIMITED, or ACCRINGTON, ENGLAND.

' CARPET swnnrnn;

Application filed July 27, '1921. Seiial No. 18K939;

. To all whom it may concern -1 Be it known that '1', JAMES. Lienrroo' r 'SHoRRooK, a British subject, residing at ing from the rotary brush of hairs, fibres,

threads, ravellings and similar material which have a tendency to accumulate around the bristles of the brush It consists of a comb like clearer of trough shape stamped in a single. strip of sheet metal with narrow tines or teeth alon'gboth edges to enter the bristles so suspended from the top of the sweeper case to rock or slide from side to side as the brush rotates in one direction or the other so that the tines or teeth along theedge towards which the brush is rotating will work downwards or into and enter between the bristles and those along the other edge will simultaneously rock upwards or slide away from the bristles, and in the particular construction of such appliance.

The invention will be fully described with reference to the accompanying drawings.

Fig. 1 is a longitudinal sectionthrough carpet sweeper showing one form of the in vent1on;

Fig. 2 is a sectional plan of same.

Fig. 3 is a transverse section.

Fig. 4 is a perspective view of part of the comb appliance or clearer D. V

Fig. 5 is an enlarged transverse sectional elevation of-same. 7

Figs. 6 and 7 are a perspective view and transverse section respectively showing another method of suspending the comb appliance or clearer D.

Figs. 8 and 9 are a perspective Viewv and transverse section respectively showing an-' other method of suspending the comb appliance or clearer D.

Figs. 10 and 11 are a perspective view and transverse sectionshowinganother method of supporting the comb appliance or clearer D.

Figs. 12 and 13 are a perspective view and transverse section showing another method of supporting the comb appliance or clearer D and avariation in the form of teeth.

Fig. 142 is-a transverse section of sweeper showing another form of the invention i;

Fig.- 15 is a perspective viewof same.

Fig. ,16 is a'perspective view or" another method of supporting the comb appliance or clearer D,

The. carpet ,sweeper, is of ordinary construction with a rotary brush A mounted within a casing l3 rotated by driving wheels C.withwhich a pulley c on the hubis in frictional contact and delivering the sweepi'ngs into tray ca; p

The comb appliance or clearer D is stamped inla single piece'of sheet metal of trough or somewhat trough shape, thatis, with a based and a series of tinesor teeth d disposed like flanges along both edges, and is suspended from'the top of the case B to'rock or slide to one side or the other e to draw the teeth or tines cl at the sideof the clearer towards which the brush; A .is rotating into the bristles and simultaneously to withdraw the teeth or tines at the oppog site side from the bristles. of the brush.

A lath or bar E of wood isfitted was interior of the-case Bend the comb appliance or clearer D issuspended therefrom.

In the construction shown in Figs. 1 to 5 the clearer D is stamped in a single piece of sheet metal and longitudinally of the base d, a wire d is soldered or otherwise at-- tachedto stitl'en it, the ends of the wire extending at both ends to form pivots upon whichithe clearer may rock. To the lath or bar E brackets e are affixed at both ends in which the pivot ends of the wire, (Z2 are journalled. The brackets *6 may extend downwards to form thread catchers or clearers e for the ends of the brush A.

In the construction shown in F igs. 6 and 7 the clearer D is stamped in a single piece of sheet metal with a longitudinal stiffening wire 0Z projecting at the ends and pivoted in brackets e and supported at intervals by staples e? driven into. the lath E, orthe brackets 6 may be dispensed with and the rocking-suspension be effected by the staples e alone. 7 I r I In the; construction shown in Figs. 8-and 9 the clearer D is stamped in a single piece of sheet metal and is suspended by staples (Z afiixed thereto which pass over a longi placedin a groove 'in the solder or otherwise and it is suspended by staples e which embrace the longitudinal wire d In the construction shown in Figs. 14 and 15 the clearer D is stamped in'a single piece of sheet metal with slots d, and is supported on screws screwed into the bar E and is free to movewla-terally from side to side on the screws.

In the construction shown in Fig. 16 the clearer D is stamped in a single piece of sheet metal with projecting lugs d at the ends. To the bar E brackets e are affixed at both ends with slots 6 into which the lugs (Z project and by which they are supported. The brackets e extend "downwards to form thread catchers or clearers for the ends of the brush A The tines or teeth cl of the clearer D are,

preferably stamped vor pressed out of the flat metal bent to the desired inclination and then twisted to bring the edge of each into a plane at right angles tothe longitudinal axis of the clearer, as shownin Figsd to 11, and 16, or they may be stamped flat as in Fig. 15, or they may be pins of the desired shaped'attache'd to the base as in Figs. 12 and 13.

The end clearer e for the end of the brush A may form part of the end bracket 6 of the bar E and be fixed, or as part of the clearer D and rock or slide with it.

lVhen the sweeper is in operation the pressure or friction of the brush A'as it rotates will tilt the clearer D or cause it to move laterally to bring one set of tines r teeth 03 clear or practically clear of the bristles and will simultaneously draw the other set more deeply into the bristles to separate and remove the threads, hairs ,or the like which have wrapped round the brush.

What I claim as my invention and desire to protect by Letters Patent is 1. In a carpet sweeper the combination with the rotary brush of a comb like clearer therefore comprising a device of approximately trough shape stamped in a single piece of sheet metal extending therentire length of the brush and provided with a flat base and narrow tines projecting at an inclination at both edges, and means by which it is loosely suspended from the top of the sweeper case and free to move from side to side of the brush as it rotates in one;

a. comb like clearer of approximately trough shape stamped from a single piece of sheet metal and provided with narrow teeth along both edges, a longitudinal wire extending along the centre to stifi'en it and end supports by which to suspend it from the top of the sweeper case so as to be free to move froin' side to side as the brush rotates in one direction or the other so that the tines or teeth along the edge towards which the brush is rotating will work downwards or into and enter between the bristles, and

those along the other edge will simultaneously work upwards or away from the bristles substantially as described. 3. A comb like clearer for the rotary brush of carpet sweepers constructed of ap proximately trough shape stamped in. a

single piece of sheet metal with narrow teeth along both edges, and each tooth twisted at right angles to bring a narrow edge into the path of the rotary brush and locking device to suspend it from the top of the sweeper case so as to be free to rock from side to side substantially the purpose described. 4:. A clearer for the rotary brush of can pet sweepers comprising in its construction adouble comb of trough shape with teeth along both edges stamped in a'single piece of sheet metal, a stiffening and supporting wire attached thereto, and end brackets in which the comb is pivoted and upon which it is free to permit it to rock from side to side as the brush rotates in one direction or the other to bring first one set of teeth and then the other set of teeth into cont-act with and between thebristles of the brush substantially as described.-

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses this 8th day of July, 1921.

JAMEsLieHTFooT SHORBOGK.

WVitnesses I. OWDEN OBRrnN, Gnoncn H. .OBRIEN. V 1

as and for V

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