US1624246A - Suction cleaner - Google Patents

Description

H. E. HOOVER.

sucTIoN CLEANER Filed oct. 21. 1922 April 12 1927.

Patented Apr. 12, 1927.

UNITED STATES 1,624,246l .PATENT OFFICE.,

HOWARD EARL HOOVER, OF CHICAGO, ILLINOIS, ASSIGN OR, BY MESNE ASSIGNMENTS, i

TO THE HOOVER COMPANY, OF NORTHh CANTON, OHIO, A CORPORATION 0F OHIO.

sUc'rIoN CLEANER.

. Application filed October 21, 1922. Serial No. 595,900.

My invention relates in general to, suction-cleaners and in particular to that type wherein the suction-nozzle is held elevated somewhat above the door and the floor cov. ering being cleaned ,is held suspended against the nozzle-lips byv air pressure and subjected to the action of means designed to beat and sweep the same.

Prior to my invention, suction-cleaners of this type have been provided either with a rotating element designed to both beat and sweep the Hoor-covering, or with means designed exclusively to beat the same.

Where a single means is employed to both beat and sweep the floor-covering, a sacriiice in both beating and sweeping eiliciency must be made in order to secure bothfunctions in a single unit, and Where means designed exclusively or beating are employed, the machine can have but very little sweeping action, which is essential in removing lint and other forms of surface litter.

An object of my invention, therefore-,is to provide a suction-cleaner equipped to both beat and sweep a floor-covering in the most efficient manner.

With these and other objects in View my invention,` consists in the -novel construction and arrangement of parts hereinafter described and more particularly pointed out in the claims.

Practical forms in which my invention may be embodied are shown in the accompanying drawings in which- Figure 1 is a side elevation with parts broken away, .of a suction-cleaner embodying my invention;

Figure 2 is a partial section taken on line X-X of Figure 1.

In Figures 1 and 2 I have illustrated a suction cleaner comprising a casing in which is formed a suction-nozzle 10, the fan-chamber l1 communicating therewith through the aperture 12 and a discharge-conduit 13 leading from the fan chamber to a dust collecting bag 14.

Mounted on the casing above the fanchamber is an electric-motor 15 on the shaft of which is mounted the fan 16 and a pulley 17 over which is traineda belt 18, preferably made of elastic material, the purpose of which will be described later. The casing is supported upon four wheels 19 1n such a manner that the lips of the nozzle ltween them.

opening above the floor. A

That part of the casing which forms the suction-nozzle comprises the outer end walls tures 22 and 23V which receive and act as bearings for the beating element 24 andthe sweeping element 25 respectively.'

In this embodiment o,f my invention, the beating element is shown composed of a body-portion 26 upon which are mounted in two helical rows beaters consisting of balls 27 made of metal or other suitable material and secured to the body-portion 26 by means of rigid rods 28. The sweeping element'I comprises a body-portion 29-upon which are mounted in two helical rows tufts of soft bristles 30, so spaced longitudinally of the body portion that they allow *thev passage of the beating-balls 27 through the spaces be'- 'lhis construction allows the bodies ot the beating elements and the sweeping elements "to be mounted nearer to e'zLclh other than would be otherwise poss1 e.

Mounted on the'beating-element intermediate its ends is a pulley 31 over which a belt 18 .travels and by means of which the beating-element is rotated by the electricalmotor.

Mounted on each end of the body-portion 26 and situated between-the inner and outer end walls of the suction-nozzle isa spurgear 32 which meshes with an idler-gear rotatively mounted on the inner and outer end walls. The idler-gear in turn Ameshes with spur-gear 34 mounted on each end of are held a substantial .distance v20, 20,' and the inner end walls 21, 21. The Y i inner end walls` are each provided with aperthe sweeping-element 35. It will thus be seen that the beating-element and the sweeping-element are operatively connected so that when the beating-element is rotated by means of the motor, a corresponding rotation of the sweeping-element also takes place, and because of the toothed gearing the fixed relative position of the beating and sweeping elements is always maintained and interference with each other is avoided.

I claim:

1. In a suction sweeper, a main casing having a suction mouth, means for drawing a current of air through said mouth, support means maintaining the mouth at a distance above the floor covering to be cleaned,

-in a positive angular relation.

2. In a suction sweeper, a main casing having asuction mouth, means for drawing a current of air through said mouth, support means maintaining the mouth at a distance above the oor covering to be cleaned, means for sweeping the floor covering, means for' vibrating the floor covering while it is drawn up to the mouth by they air, the sweeping means comprising a rotatable'body having separated rows of sweeping elements thereon, the vibratingmeans comprising a rotatable body having thereon rigidly mounted travel, the axes of the 'sweeping and striking bodies separated less than the sum of their overall radii, and means producing ro- `4tation of the sweeping means and yvibrating means in positive angular'relation.

Signed at Chicago, inthe county of Cook, and State of Illinois, this l19th day of October, A. 13,1922.

HOWARD EARL HOOVER.

`striking membersV having fixed orbits` .of

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