US1902534A - Vacuum cleaning device - Google Patents

Description

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v v v v v v March 21, 1933. F. wlELATz VACUUM CLANING DEVICE Filed Jan.

Y intimate contact with eac Patented Mar. 21, '1933 PATENT oFFlcE FRED WIELATZ, CHICAGO, ILLINOIS.

'vacuum CLEANING DEvIcE Application led January I1, 1932. vSerial No. 585,826.

This invention relates to vacuum lcleaning devices, and more particularly toa brush attachment whereby dust andvgrit may be removed from places inaccessible to the ordi- 3 nary attachment devices usually provided with the equipment of .vacuum cleaners,

. the object being to provide a simple and inexpensive, yet practically designed. and

highly efiicient device, and to attain certain 13 advantages as will hereinafter more fully appear in the following description.

The invention consists in the novel general structure and in the arts and combinations 'and arran ements oi) parts hereinafter del'scribed an pointed out with particularity in the appended claims.

In the accompanying drawing, forming part of this specification, and illustrating practical adaptations of the invention,-

Fig. 1 is an elevationalview;

v Fig. 2 is a longitudinal section, taken on p or about the line 2-2 of Fig. 1;

Fig. 3 is a transverse section on the line 3-3ofFig.1;. .Y Fig.- 4 is a'fragmentary longitudinal section of a modified construction; and

Fig. 5 is a transverse section on the line 5--5 of Fig. 4.

Referring now to the drawing, the numer- '30 al 10 designates generally anozzle member having a tubular shank portion 1I tov which is attached a flexible tube of rubber or other suitable material 12, which latter, in 4use, is

in turn connected to the suction portionota vacuum cleaner of any kind (not shown),

Theouter end portion 13 of the nozzle 1Q is flattened somewhat, thereby` producing a pair of restricted longitudinal passage-v ways 14, 15, at opposite sides, said passage-l 43 ways being preferably f elliptical in crosssection, as shown more clearly in Fig. 3 of the drawings, and being separated y the truly liattened medial portions 16 which are pressed inwardly from o posite sides into il other. The extreme end portions 17 of the nozzle member are compressed to ether in `the same plane as the intermediate epressed longitudinal portions 16, said portions 17 being welded or otherwise. secured together, if desired, but

in some cases, where the metal is of a certain gauge, the inherent rigidity thereof may be depended -upon` to maintain the end ofthe. nozzle in this closed conditiony without the- ,employment of anyl special means of astemng. A

The pair ofv restricted ' tubular end portions 14, 15;, are provided with apertures 18 at o posite sides, said apertures being preferab y --arranged. in staggered relation, as shown more clearlyl in Fig'. 1 of the drawing, but, obviously, they may be arranged otherwiseI and formed -as elongated slots instead of circular aperturesl as shown. Brush elements comprising elongated rela- @5 tively 'narrow body plates 19, carrying the tufts of bristles '20, are secured in the depressedV portions or. valleysv 16 between the pair of restricted tubular portions 14, 15, said brush body plates 19 being secured in 70 place in any approved manner, asv b means of bolts, screws, pins, rivets, or t e well known present daywelding methods', and the bristlesbeing preferablyarranged in stag-'- gered relation inn two or more longitudinal 7-5 rows, as shown. l

In the modification shown in Figs. 1'to 3, inclusive, of the drawing, the pair of tubular portions 14, 1,5, "are of substantially the same cross-sectional area throughout their length, but inthe modification illustrated in Figs. 4 and `5,- the end ortion of. the nozzle wherein the correspon ing pair oftubular portions 14* and 15'L arelocated, is tapered 1 or wedge-shaped. In this modification the a5 end portions 17 of the nozzle are closed, as

in the structure shown in Fi 1 to 3 of the drawing, but the intermediate attened V portions 16 between` theside portions 14 and 15?i are spread apart at an inclination 90 with respect; to each other, the space widening toward the shank portion 11, and the restricted sideltubularv ortions 14" and 15l being correspondingly ared in the same direction, and being also open to communica-v tion with each other throughout their length,

by virtue of the s acing of the portions 16.. Ingorder to avoi producingan undue obstruction within the device, Aand at the same timefsupport the intermediate flattened portions 16 in their spaced relation, a strut 21' in the form of a sleeve is provided, through which a securing bolt or rivet 221s passed, asshown more Vclearly in Fig. 4'of the draw- 5 ing. As far as the'abrush elements 19, 20, .and the means of attachment to the vacuum cleaner or suctiondevice are concerned, these and other incidental features may be the same in the two modifications.

The device of the present invention is readil inserted and manipulated in spaces ditcu t ofv access, particularly in between the legs or sections of radiators of steam and hot water heating systemsland the like, the

particles of dirt and mattertol be removed being loosened by the brushing action of the- -bristles andthe loosenedfmaterial being drawn into the tubular portions 14, 155 or 14, 15, as the case may be, through'.` the 21,00 eningsy 18, and delivered to the vacuum.

' c eaner through the hose pipe 12, as in the of ordinar nozzles and attachments.

v In addition to t e advanta es of eiiiciency of v the device,there is a-furt er advantage-in the economical production of the device, in that it ma be readily formed from a singlej blank of s eet material or. ressed into shape f froma single piece of or inary commercial l tubing, the shank ofthe device being provided by the prefnrmed'iube ma the j working -portion of-I the nozzle being pron. vided b compressing and reforming the tube, w ich may be conveniently accomplished in a suitable die or rolling machine process;

While the devices illustrated in the drawingI embodyl practical adaptations of the invention, 4"obviously -many further modifi- 'y catiqis niay be made, in the structure without -450 inthe least departing fromthe spirit and character described, comprising a tubular stricted tubular side portions, said restricted tubular portions bein a rtured on opp'osite sides of the nozz e e ement," the lon tudinal medial portion of the original tu being completely flattened ually fromopposite sides of the nozzle ketleni'ent, providlng depressions between said restricted tubular` side portions, ando posed external brush elements in said medlal flattened depressions.

41A suction cleaner attachment ofthe 85 nozzle member, the base shank portion of which is of substantially cylindrical cross section, the forward portion of the devicel being artially flattened and provided withl lateral yv spa-ced longitudinal internal passageways, the forward portion of the nozzle member being apertured communicably. with said internahpassageways, the medial longitudinal ortion of the device being further iiattene and y a brush element Adis, osed longitudinally on said further giiatten portion in interposed working relation medially .between said apertured portions.

n In testimony whereof I have signed my name to this specification.

FRED WIELATZ.

scope Iofthe invention as defined by the appended claims. The invention, therefore, .is not limited to the specific construction and arrangement shown.l

'46, Having thus described my invention,

` what I claimas new and desireto secure by Letters'Patent is: I

1. A'suction nozzle for cleaning devices, formed with a pair of laterally spaced i 50 longitudinal internal passageways and .pro-v Avided with apertures von opposite sides in communication with said passageways, and` opposed longitudinally extended brushing elements on the opposite sides of the nozzle 55' and interposed medially between said passageways.

2. A suction nozzle for cleaning devices,

. comprising a tubular shank portion merging communicably with a branched pair of parlo allel laterally 'spaced longitudinally extending restricted tubular portions, said nozzle being apertured on opposite sides throughout the length of each of said restricted `tub-v ular portions, and opposed Iexternal brush elements on opposite sides,l of the nozzle

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