US2027793A - Nozzle for vacuum cleaners - Google Patents

Description

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Jam. M9 M360 v. N, M. SMITH NozzLE FOR VACUUM CLEANERS Filed Deo. 2l, 1935 Patented Jan. 14, 1936 l Nirsn smrss Y zolzws *l 2,027,193 I No' ron. VACUUM CLEANERS Victor Norris Morley Smith, Fergus, Ontario,

Canada, assigner' to Beatty Bros. Limited, gus. Ontario, Canada, a corporation of Can- Appllcation December 21, 1933, Serial No. '703,336 En @aliada December 21, 1932 2Gb-ima.

In Ithe renovation of carpets, rugs, tapestries and the like, it has become a common practice to use vacuum devices, which will rapidly draw a current of atmospheric air through the article carrying with it any dirt and dust which has accumulated in or o n it; and it has been ascertained that by drawing atmospheric air over it close tothe nozzle mouth, then forcing the air down and then upwardly between the lips of the nozzle into the vacuum device a better and quicker cleaning is attained.

The object of this invention is, therefore, to design a nozzle for a vacuum cleaner which will remove substantially all the dirt from a carpet,

rug or the like by drawing a rapid current of atmospheric air over it in close proximity to the nozzle mouth, then down into it and then upwardly between the lips of the nozzle mouth of the vacuum device, 'especially in those types of 20 rugs having a pile exposing the dirt which lies in the gutter and effecting its removal without any resistance being ofiered, the manner in which y this is accomplished being lunderstood by reference to the following description and the accompanying drawing in whlchz- Fig. l is a front view of a vacuum device:I embcdying this invention;

Fig. 2 is a plan view of the mouth of the nozzle;

so' Fis. 1:

F18- 4 1B a fragmentary sectional view oi th mouth of the nozzle; and v Fig. 5 illustrates the manner in which the mouth of the nozzle during operation separates the pile.

. Like characters ofl reference refer to like parts throughout the speciiication and drawing.

In the drawing the vacuum device is shown in conjunctionwith a piece of-carpet, this be-l cleaning device. The nozzle mouth t is provided' with front and rear lips l and l respectively, each lips lower extremity la and la respectively being tapered to a point throughout its entire lengthsndonellpbeingatadifferent elevation than the other. In Figs. 3, 4 and 5, I have shown the iront lip l, at a lower elevation than the rearv lip 5 jbut the nozzle will work just as eiliciently if the rear lip is the lower of the two.

n As diagrammatically illustrated in Fig. 5, 6 indicates the weave of a rug, 1 the pile, and

8 the dirt gutter, the nozzle being assumed tol travel inV the directionv indicated by the arrow and in so doing the front lip l exposing the dirt gutter to the action of the rapid current of air which is being drawn into thesuction chamber. The air current'is s indicated by the arrows in Fig. 5, most of the 'air passingl between the higher lip and the pile of the carpet to the nozzle mouth, thereby cleaning the surface and dirt gutter in the pile ofthe rug. The inrush of air into the nozzle mouth creates a lower pressure than atmospheric pressure, in the dirt gutter, ex-

posed by the action of the lip 4 separating the I Having thus fully described my invention what,

I claim as new and desire to secure by Letters Patent is: f

l. A vacuum cleaner nozzle for cleaning carpets', rugs and the like having two parallel wedge shaped lips forming a substantially narrow mouth, one of said lips being at a. higher elevation than the other lip, the higher positioned lip directing the ilow of air before it enters the nozzle over the surface of the carpet in c lose proximity to the mouth of the nozzle and then down into the dirt gutter at the base of the pile and then upwardly between the lips of the nozzle to the dirt collecting chamber oi the vacuum cleaner, the lower positioned lip penetrating the pile and spreading it as the nome is moved to and fro over the carpet.

y2. A vacuum cleaner nozzle for cleaning carvrc'roa No1-mrs uom sum1.

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