US1433021A - Vacuum duster - Google Patents

Description

R. E. MICHAEL.

VACUUM DUSTER.

APPLICATION FILED DEC. 16, 1921.

Patented Oct. 24

IASSQZL Get. 24, 1922.,

rise ST ROBERT E. MICHAEL, DE LOS ANGELES, CALIFORNIA.

VACUUM DUSTER.

Application filed December 16, 1921. Serial No. 523,163.

T 0 all whom it may cmwewi Be it known that I, Rocnn'r E. MICHAEL, a citizen of the United States of America, residing at Los Angeles, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Vacuum Dusters; and I do hereby declare that the following is a full, clear, concise, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in rotary brushes, having for an object to provide a combined brushing and cleaning device particularly advantageous for brushing and cleaning clothing and like articles, the brushing meansthercof serving to remove and loosen dirt arid dust from a. surface being treated therewith, 'hile suction creating means operable in conjunction with the brushing means function to effect the conveying of the loosened dirt or dustfrom the article being cleaned and depositing it in a container therefor It is also an object of the invention to provide a novel emotion converting and transmission means for operating the brush and suction cleaning means of the device, the same being manually actuated and capable of driving the active elements of the invention at a speed to ensure the proper performance of their respective functions.

Other objects will be in part obvious. and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by persons skilled in the art, I have in the accompanying illustrative drawings and in the detailed following description based thereon set out one possible embodiment of the same. I

In these drawings Figure 1 is a vertical section through the improved device;

Fi 2 is a horizontal section taken on the l1ne 2-2 of Figure 1 looking in the directipn in which the arrows point;

F gure 3 is a bottom plan view of the brush shield and nozzle;

Figure 4 is a fragmentary detail in section showing the arrangement of the motion converting and transmitting gearing arranged within the device; and,

Figure 5 is a'detail perspective view of the rack guide. I

Having more particular reference to the drawings, in connection with which like characters of reference will designate corresponding parts throughout, the improved brushing and cleaning device may be stated to include a housing or casing 1, the upper portion of which is provided with a cover 2 corresponding in shape and size thereto and adapted to be secured in position in respect to the same through the medium of screws 3, or similar fastening devices, the free portions of which are engaged with the inner faces of the casing side wall as at 4. A diametrically disposed arm 5 is arranged within the casing 1 and secured at its opposite ends to adjacent portions thereof and serves to provide aneffectual bearing for a driven shaft 6 arranged concentrically of and positioned vertically within the casing; the upper end of this shaft crossing through a bearing disc 7 arranged in the upper portion of thecasing and engaging a suitable bearing 8 in the cover 2, While the lower portion thereof passes through a bearing located within a diametrically disposed bar 9 formed with the casing 1 downwardly through a point in proxlmity to the constricted lower open end 10 of the said casing, the purpose of which will be hereinafter described.

A handle 11 may be and preferably is secured to one portion of the peripheral surface of the circular casing 1 for an obvious purpose.

As hereinbefore described, the vertical shaft 6 has rota-table bearing within the easing 1, a fly wheel 12 being fixedly mounted thereon whereby to facilitate rotation of the same at its maximum speed.

Fixedly mounted upon the upper portion of the vertical shaft 6 is a pinion 13 meshing with a gear 14 mounted upon a bearing bracket 15 secured to adjacent portions of the casing wall and having aslip clutch 16 arranged concentrically within the same, the gripping members 16 of which are adapted, as will be understood, to establish driving connection as between said pinion and the clutch element, clearly illustrated in the Fig ure 2. Another pinion 17-is fixedly mounted upon the particular shaft carrying the gear 1 1 which as will be noted, is journalled in a suitable. bearing 18 at its upper end, this latter pinion 17 meshing with one side of a bifurcated element 19 slidably engaged in ing wall and adapted to have radial sliding movement with relation tothe same. Suspended by means of the set screw or like -fas-.

' ment 19, hereinafter more fully described,

being transmitted to the pinion 17 and converted thereby into rotary motion, from whence it is transmitted through'the medium of. the trip clutch 16 to the upper portion of'the shaft 6. In this connection, it is of course to be understood that by reason of the slip clutch connection 16-with the gear 14, rotary motion in but one direction will be imparted to the gear 14 since there will be an intermittent connection as between this gear and the slip clutch 16 driven from the pinion 17 a A contractile coiled spring 22 is connected at one end to the bifurcated element 19, while its opposite-end is secured to the guide track 19 or any other fixed portion of the casing 1, thus affording ample means for normally retaining the element 19 in its outermost position withrespect to the easing.

As means for imparting reciprocal motion to the bifurcated element 19, a reversely curved fan lever 23 is pivoted to the peripheral portion of the casing 1 as at 24, the intermediate portion thereof engaging with the outer end of the bifurcated element 19 through a roller 25 rotatably mounted in said outer end of the latter. By intermittently pressing the free po tion of the lever 23 inwardly with respect to the casrelation tofthe casing '1 will occur, inward movement of such element being resistedby ing 1, it will be thus understood that radial movement of the bifurcated element 19 with the coiled spring 22 which as above stated, normally tends to returnthe same to its outermost position with respect to the casing in order that it may be rapidly reciprocated for trafismitting rotary motion to the pin- .ion 17.

The constricted lower open end 10 of the casing 1 is externally screw threaded and receives thereupon" a correspondingly screw threaded neck 26 of a nozzle 27,'which as shown in the Figure 3, is substantially oval in shape and serves to'house a plurality of rotatable brushes 28' mounted upon stubshafts having bearings in a bar 29 suitably secured within the-nozzle 27 and connected to the vertical shaft '6 by'means of a flank 6', which flank in turn, is connected with a gear 30 fixedly mounted upon the stub shaft of the intermediate brush 28 and meshes with similar gears 31 fixedly mounted upon the stub, shafts of the remaining brushes 28, that is, the brushes upon either side of the intermediate brush. From the above, it will be understood that by reason of theconnection of the rotatable brushes 28 with the vertical-shaft 6, rotary motion will be transmitted thereto from the motion converting and transmitting means hereinbefore described.

As means for removing the loosened dirt and dust from a surface being cleanedwith the'device subsequent to its engagement with the rotatable brushes 28, a fan 32 is fixedly mounted upoirthe intermediate portion of said vertical shaft 6 above the bar 9 and in consequence, with rotation of the blades-of said fan which. are properly pitched, a suction will be created within the casing v1, and

at the nozzle 27 sufficiently strong to remove such loosened dirt-and dust and to convey the same upwardly into the casing from whence it will be discharged by way of the operator with one hand with the thumb thereof free to engage with the lever 23 pivoted to the casing 1, this lever being intermittently pressed whereby to effect rapid reciprocation of the bifurcated element 19 which in turn will transmit rotary motion to the pinion 17, thereby effecting transmission of rotary motion in step by-step fashion to the gear 14 from whence it will be transmitted through the pinion 17 to the vertically mounted shaft 6. W ith applicationof rotary motion in the step by step fashion above noted, tothe vertical shaft 6, the same will readily gainmomentifm by reason of the arrangement of the fly wheel 12 there- 0 and will effect the rotation ofthe brushes 2 8 at a high velocity together with the suction creating fan 32, said brushes 28 when engaged with the surface-to be cleaned effecting the loosening of dirt and dust therefrom which in'turn will be drawn or sucked 'upwardly through the constricted open lower I claim:

1. A device of the character described comprising a casing having an open lower end and a nozzle secured thereover, a plurality of rotatable brushes supported within said nozzle, a vertically disposed shaft mounted in the casing having driving connection with said brushes, a fly wheel carried on the shaft, a radially disposed bifurcated reciprocal element in the casing having one end slidably received in a portion of the walls thereof, one side of said element having a rack formed thereon, a pinion engaging said rack and mounted Within the casing, a gear mounted in proximity to said pinion, a slip clutch con-- nected to the pinion and engageable with the gear, a second pinion fixedly mounted upon the upper portion of said vertical' shaft and meshing with the aforesaid gear, manually operable means arranged upon and exteriorly of the casing engageable with theouter end of said bifurcated element for imparting sliding movement to the same, spring means engaging the casing and a portion of said element for retaining the same in its normal position, -a fan fixedly mounted upon the vertical shaft and a container detachably connected to said casing adJacent an outlet opening therein communicating with the shaft, as and for the purpose set forth.

2. A device of the character described comprising a casing having a' constricted open lower end, a nozzle secured to said open lower end, a plurality of inter-connected rotatable brushes supported within said nozzle, a vertically disposed shaft mounted in the casing and connected to one of said rotatable brushes, a 15 wheel carried on said shaft, a radially disposed reciprocal bifurcated element extending into said casing by way of an opening in the side wall thereof,-one side of the bifurcated element havinga rack formed thereon, a pinion engaging said rack and mounted within the casing, a gear rotatably mounted in proximity to said pinion, a slip clutch connected to the pinion and engageable with said gear, a second pinion fixedly mounted upon the upper portion of said vertical shaft and meshing with the aforesaid gear, a lever pivoted at one end to the peripheral portion of the casing and adapted to have engagement intermediate its ends -with the outer end of said bifurcated element, a fan fixedly mounted upon the ver-' tical shaft and a container detachably connected to said casing adjacent an outlet opening therein and communicating with said fan as and for the purpose set forth.

In witness whereof I have hereunto set m hand.

y ROBERT E. MICHAEL.

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