US1348582A - Suction-cleaner - Google Patents

Description

W. W. ROSENFIELD.

SUCTION CLEANER.

APPLICATION FILED MAY 24, IBIS.

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W. W. ROSENFIELD.

SUCTION CLEANER.

APPLICATION FILED MAY 24. 1915.

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To all whom it may concern:

Be it known that 1, WILLIAM W. Rosmv- FIELD, a citizenof the United States, residing at New York city, .in the county of New York and State of New York, have invented .certain new and useful Improvements in Suction-Cleaners, fully described and represented in the following specification and the accompanying drawings, forming a part of re thesamb.

This invention relates to improvements in suction cleaners, and more especially to suction cleaner nozzles.

The object'of the invention is to provide a suction cleaning nozzle which shall be adapted to o erate efiiciently both in picking up threads, bers and similar articles or materials which tend to-adhere to the surface being'cleaned, and aYso for cleaning by the ac suction of air through, and extraction of dust anddirt from, the pile or body of the carpet or other fabric to be cleaned.

A full understanding of the invention can best be given by a detail description of an illustrative embodiment of the same in the v formnow considered best, and such a description will'now be given n connection with the accompanying drawings illustrating such an embodiment of the invention,

an and in which;

Figure 1 is a side view in elevation of a self-contained suction cleaner embodying the various features of the invention;

Fig. 2 is an enlarged bottom plan View of er the nozzle and adjacent portions of the ma:

chine I Fig. 3 is a broken bottomplan view of one end of the nozzle on the scale of 2 but showing the nozzle brush and one of the runto ners in operative position;

Fig. 4: 1s a sectional view of the nozzle taken on line 4- 4 of Fig. 3;

Fig. 5is a similar view taken on linen- 5 of Fig. 2 p v Fig. 6 is a side view in elevation of the body of the cleaner, showing-the opposite side from that shown in Fig. 1;

Fig. 7 is .a view similar to Fig. 6 but showing the adjustable'running wheel adto justed to throw the nozzle nearer the floor and the nozzle brush and runners being turned up out of operative position. :Referrmg to the drawings, the suction cleaner shown has a body formed by a motor ea casing 10 within which an electric motor is Specification of Letters Patent. Pgt gnflggdl 'A g- 3 192g) Application filed may 24, 1915. Serial No. 29,968. i

driven by the motor, and a nozzle 12 extending downward from the front of the fan 7 casing. The nozzle is as usual extended transversely at the bottom to provide a comparatively long and narrow suction inlet opening ormouth between the lips of the nozzle. The body ismountedon a pair of running wheels 13 and 14 located adjacent and to the rear of the nozzle and a small rear'wheel 15. The cleaner is operated by a pivoted handle rod 16 and is provided with a porous dirt receptacle or bag 17 connected at 1ts lower end to the discharge throator conduit 18, extending backward from the lower portion of the fan 'casing, .the upper end of the bag being supported by a connection to the upper end of the handle rod.

The running wheels are positioned to support the nozzle slightly above the normal plane of the surfaceto be cleaned, and the 'may be adjustable to predetermined -u per and lower positions as described in my atent N0. 1,300,19c, dated April 1919.-

It is desirable that a suction cleaning nozzle of a self-contained suction cleaner or other suction cleaning nozzle shall be adapted topic'k up from a carpet or other surface being cleaned, thread, lint, hair, or other loose fibrous material, and for this purpose the nozzle should be provided with a suitablethread-disturbing device. ellicient for this purpose, however, the nozzle In order to be must in addition to bein provided witha thread-disturbing device ie formed or' rovided with means to cause a current 0 air to pass over and against the surface'of the carpet to pick up thethreads, etc, which have been loosened from-the carpet or disk turbed by the disturbing device. Forthorough cleaning of the carpet and extraction of its contained dust, howevei ,-it-iscdesirable that the. nozzle shall. operate without causing such surface cleaning current of l air, but so as to cause substantially all of the sucked-in air to ass through the body of the carpet; and or this purpose, it is desirable, therefore, that the nozzle positioned slightl above the normal plane of the surface o the c'arpet shall not be hindered fromdrawing the carpet up slightly are away from the floor and against its lips so that nearly all the air entering the nozzle shall pass completely through the portion of the carpet beneath the inlet opening or mouth of the nozzle, and that what portion of air enters by passing directly beneath the nozzle lips shall also be caused to pass through the body of the carpet. The present invention provides a suction cleaning nozzle which meets the above conditions and requirements, a nozzle made in accordance with the invention being provided with means whereby threads, etc. will be dis-' turbed and the necessary surface cleaning air current secured, and such. means-being adjustable into operative or inoperative positions so as to avoid interference with the regular suction or vacuum cleaning operation of the nozzle.

As shown in the drawings (see especially Figs. 1 to 5), the nozzle has mounted within its mouth a rod or bar 20 mounted to turn .in spring bearings 21 and 22 at the ends of the nozzle. The bar'20 has extending from one side thereof means formin a thread-disturbing rib or brush 23 whlch, when the bar is turned in one position, pro jects slightly beyond the plane of the nozzle lips. The rib should be of a suitable character to frictionally engage and exert the necessary pull or-drag on the threads, etc. with which the rib comes in contact, an

might for this purpose be made of sultable soft rubber or rough felt but is most desirably formed by a row of tufts of suit able bristles providing along narrow brush as shown in the drawin s. The brush or disturbing rib thus'provi ed may be of suf ficient stiffness and extend a suitable distance beyond the plane of the. nozzle lips to hold the carpet sufiiciently' away from the nozzle lips to secure the desired surfacecleaning current'of air inward beneath the nozzle lips and past the surface of the car-v holding. the carpet away from the nozzle lips, and for-this purpose I find it best to provide one ormore runners to extend slightly below the plane of-the nozzle lips when the disturbing rib or brush is in operative position. These runners, of which two are shown in the drawing and marked 2t and 25, are best-mounted on the bar 20 at the ends of the brush so that when the bar is turned to bring the brush into operative position, as shown in Figs. 3 and 4, the run-- ners willalso be in operative position with theirrunning faces lying below the plane of the nozzle lips and about in or slightly below the plane of the engaging face of the brush. These runners serve, as will be evident from Figs. 1 to 4, to hold the carpet adjacent thereto slightly away from the nozzle lips and so provide draft passages or spaces beneath the nozzle lips for the passage of the desired surface cleaning current of air. In order to secure such surface cleaning current of air throughout the whole length of the nozzle, additional run- .20, their length is limited by the necessity oftheir being turned upward within the nozzle. might of course be longer. Such long run- If otherwise mounted the runners ners, of about the relative length shown or loner, in addition to'securing the desired sur acecleaning current of air, also avoid xcesslve pressure of the carpet againstthe brush and nozzle and so insure easier runnlng of the cleaner.

The opposite side of the bar 20 from that which carriesthe brush is formed to provide a' smooth and, most desirably, metal surfaced rib 26 which when the bar is turned-to the position'shown in F igs. 2 and 5 lies" about in the planeof the nozzle lips. This bar serves a useful function in preventing the carpet from being drawn up by the suction somewhat into the nozzle and so decreases friction between the nozzle and the carpet and insures an easier running cleaner. The bar is mounted in its bearings 21 and 22 so that it may be moved slightly endwise therein, and at one end is provided with two oppositely extending lugs 27 and 28, one or the other of which extends into a spring pocket formed as shown in Fig 5 inthe bearing spring 22 when the bar is moved endwise toward the end of the nozzle at which the bearing spring .22 is located, that is, when the bar is'in its normal endwise positionias shown in'Fig. 2. By endwise movement of the bar toward the other end of the nozzle, the lug-27 or 28 will be drawn out of the pocket-in the bearing spring so as to permit the bar to be turned to the position in which the brush is in its operative position as shown in Figs; 3 and 4, or in which the brush is in its inoperative position and thesmooth face of the bar lies in the plane of the nozzle lips as in Figs. 2 and 5. Then turned to either of these positions the bar by the slight .manipulated by taking or may be provided with a suitable finger neaaeee endwise movement to carry the lug 27 or 28 into the pocket of the bearing spring 22 will be locked against turnin The bar may be Trold of it directly piece such as the finger piece 29 carried by a pin which passes through an opening in the end of the nozzle and extends into and is secured in the end of the bar 20. By-

ing by simply pushing inward on the finger. piece. The finger piece pin should be detachably secured in the end of the bar 20 so that it may be removed to permit the bar to be removed from the nozzle, si ch removal of the bar being effected by simply pulling it out of its spring bearings.

When used with the brush and runners 24 and 25 in operative position, the cleaner will usually be used with therunning wheel 15 adjusted to position the nozzle in its uppermost position 'or position farthest away from the normal plane of the surface of the carpet as shown by Fig. 6; but for thin carpets or floor coverings it may sometimes be desirable to have the cleaner adjusted to bring the nozzle into its lower position when using the brush. When the brush -is turned up to its inoperative posi- 'tion, the cleaner will usually be used with the nozzle in its upper position for thick carpets, and its lower position for thin carpets or for cleaning uncar eted or uncovered surfaces, as shown by ig. 7.

It is to be understood that the invention is not to be limited to the exact construction,

arrangement and combinations of .parts shown and'to which the foregoing description has been largely confined, but that it includes changes and modifications thereof within the claims, and that parts of the apparatus claimed may be used in combination with other parts differing from those shown or in. cleaners of other types and construction.

What is claimed islJThe combination with a suction clean-- ing nozzle, of a thread-disturbing member .mounted within the mouth of the nozzle,

mounted to move into and out of operative position with the thread-disturbing member.

2. The combination with a suction clean ing nozzle, of a thread-disturbing member mounted within the mouth of the nozzle and adjustable into and out of operative position, said member projecting slightly beyond the plane of the nozzle lips when in operative position, and means for holding the carpet away from the nozzle lips mounted to move intoand out of operative position with the thread-disturbing member.

3. The combination with a suction cleaning nozzle, of a thread-disturbing brush adjustable into and out of operative position within the mouth of the nozzle and projecting slightly beyond the plane of the nozzle lips when in operative position, means movable into and out' of operative position for holding the carpet away from the nozzle lips when the brush is in operative position, and

a smooth surfaced rib mounted-within the mouth of the nozzle and arranged to extend substantially in the plane of the nozzle lips when the brush is in its inoperative position.

4.- The combination with a suction cleaning nozzle, of a thread-disturbing member and to permit a turning adjustment. of the bar, and thread-disturbing means extending from one side of the bar and adapted to project slightly beyond the .plane of the nozzle lips when the bar is in one position and to be retracted within the nozzle mouth out of operative position when the bar is'turned to another position.

6. The combination with a suction cleaning" nozzle, of a bar mounted within the 1 and thread-disturbing means extending from oneside of the bar and adapted to project slightly beyond the plane of the nozzle lips when the bar is in one position and to be retracted within the nozzle mouth when the bar is tnrned tolanother position, a smooth side of the bar lying substantially in the plane of .the nozzle'lip's when'the bar is turned to bring the disturbing means into inoperative position. f

7 The combination with a suction clean ing nozzle, of a bar mounted within the mouth of the nozzle and supported by means permitting. a turning adjustment of the bar,

ing fromone side-of the bar and adapted thread-disturbing means fast on and extendnozzle lips when the bar is in onie position and to be retracted within the nozzle mouth out of operative position\when the bar is turned to another position, and means outside the end of'the nozzle for turning said bar.

8. The combination with a suction cleaning nozzle, of a bar mounted within the mouth of the nozzle to turn and capable of slight endwise movement, positioning means for holding the bar against turning movement when in one position of its endwise adjustment and permitting the bar. to turn when in another position of its endwiSe ad- 'justment,and thread-disturbing means extending from one side of. the bar and formed to project slightly beyond the plane of the nozzle 'lips when the bar is turned to bring such means into operative position.

9. The combination with a suction cleaning nozzle,,of a bar mounted within the mouth of the nozzle to turn andcapable of slight endwise movement, positioning means for holding the bar against turning movement when in one position of its endwise adjustment and permitting. the bar to turn when inanother position of its endwise' adjustment, thread-disturbing means extending from one side of the bar and formed to project slightly beyond the plane of the nozzle lips when the bar is turned to bring such means into operative position, and runners carried by said bar for holding the carpet away from the nozzle lips when the bar is turned to bring the disturbing means into operative position.

10. The combination with a suction cleaning nozzle, of a member mounted within the mouth of the nozzle and carrying a threaddisturbing member adapted to project slightly beyond the plane of the nozzle lips, and flat runners carried by said member for i old-ing the carpet away from the nozzle ips.

11. The combination with asu'ction cleaner nozzle, of a bar mounted within the mouth of the nozzle and supported by means permitting a turning adjustment of the bar, a brush carried by said bar and extending from one side thereof to project slightly beyond the plane of the nozzle lips when the bar is in one position and to be retracted Within the nozzle mouth when the bar is nsets operative position and projecting slightly beyond the plane of the nozzle lips when 1n operative position, and means mounted to move into and out of operative position with said thread-disturbing member for holding the carpet away from the nozzle lips when the thread. disturbing member is 1n operative position.

- 13. The combination ing nozzle, of a thread-disturbing member mounted within the mouth of the nozzle, and

means comprising flat runners projecting beyond the plane of the nozzle lips and adjustable into and out of operative position for holding the carpet away from the nozzle lips.

14. The combination with a suction cleaning nozzle, of a thread-disturbing member mounted within the 'mouth of the nozzle and adjustable into and out of operative position, and means for holding the carpet away from the nozzle lips mounted to move into and out of operative position with the thread-disturbing member.

15. The combination with a suction cleaning nozzle, of a thread-disturbing member pivotally mounted within the mouth of the nozzle for movement into and out of operative position and spaced away from the front and rear walls thereof, said member when in operative position projecting slightly beyond the plane of the nozzle lips, and means for holding the carpet out of contact with the nozzle lips, said-means being connected with the thread-disturbing member to move into and, outof operative position with said thread-disturbing member.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

. WILLIAM W. ROSENFIELD. WVitnesses:

A. L. KENT, PAnI. H. FRANKE.

l with a suction cleanv

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