US1711132A - Vacuum cleaner - Google Patents

Description

April 30, 1929. B S 1,111,132

VACUUM CLEANER Filed Sept. 30, 1927 Mia! Case INVENTOR.

TTORNEY Patented Apr. 30, 1929.

A 1,711,132 PATENT OFFICE.

RUBIN BASS, OF BROOKLYN, NEW YORK.

VACUUM CLEANER.

Application filed September 30, 1927. Serial No. 223,062.

My invention relates particularly to small size devices useful for cleaning clothes, furniture, draperies, etc. Such devices being usually small and compact it is difficult to assemble or adjust and repair them.

One object of my invention is to facilitate the removal and replacement of the brush.

Another object is to prevent the clogging of the brush with threads, etc.

Another object isto facilitate cleaning the brush.

Another object is to facilitate replacement and repair of the brush.

In carrying out the invention I locate the brush and its driving belt in a chamber in the bottom of a casing which chamber is entirely open when the brush is being inserted or removed and which chamber is closed by a removable bottom plate having a suction inlet or inlets adjacent the brush when the plate is in place. The brush is made in sections and provided with baflle plates or fins between the bristles. The brush is preferably removably mounted in the casing independently of the bottom plate.

Fig. 1 is an edge view and partial longitudinal section of the arts involvin my invention showing the ottom plate in place.

Fig. -2 is a view showing the underside of the device with the bottom plate in place.

Fig. 3 is a view of the underside of the device, the bottom plate being removed so as to expose the brush and driving belt.

Fig. 4 is a fragmentary detail view of parts of the brush and its driving pulley. .Fig. 5 is an edge view showing a modification.

n The casing 10 isadapted to contain any suitable form of motor and suction fan. The lower part of the casing 11 may be secured to the upper part by a series of screws 12. A switch having an operating lever 13 may be provided for turning the motor on and oil.

The bottom of the casing is provided with a chamber 14 which extends outwardly at one end and is normally closed when in use by a plate or cover 15 having one or more suction openings 16. The dirt, etc. is drawn through the opening 16 and passes through the opening 17 and is ejected and collected in any suitable manner.

The joint between the plate 15 and the bottom of the casing may be made air tight in any suitable manner, as for instance by providing a rubber gasket 18 and/or a flange 19 on the cover which overlaps the edge 20 of the casing inside the recess'l l. This plate 15 may be secured in any suitable manner, as for instance by means of a hinge 21 at one end and a spring catch 22 at the other end.

The brushconsists of two shaft sections 23 connected by a pulley 24 into which they are screwed. The brush is supported in sockets 25 and 26 which are secured to the opposite sides of the chamber 14 in the casing in any suitable manner. The drive shaft 27 of the fan motor extends into one end of the cha1nber 14 and is provided with a pulley 28 which is connectedby means of a quarter turn belt 29 to the pulley 2 1 of the brush. In such devices in the past it has been customary to use an elastic belt which rapidl deteriorates due to'the heating to which the evice is frequently subjected. I prefer to use a leather belt or a belt of other durable materialavhich need be only slightly yielding so as to permit stretching suflicient to allow one end of. the shaft 23 to be tilted up the inclined socket 26-for the purpose of removal and replacement.

In order to preventthreads, hairs and the like from becoming entangled with the bristles 30 of the brush, I provided plates, or fins 31 between the bristles which extend outwardly from the shaft 23 and tend to knock off short threads and the likeand prevent them from remaining in the brush. l'prefer toprovide thesefins in pairs spaced apart from each other so as to constitute a channel between the bristles, so that if long threads, or the like, are Wound around the brush they will be held spaced apart from the shaft so that a knife or the blade of a pair of scissors can be readily inserted to cut the thread and facilitate its removal. a 3.

Instead of hinging the bottom plate 15 it may be secured in a groove 32as shown in Fig. 5 so that the cover plate 15 can be slid into place. Both forms of plates as shown in Fig. 3 and- Fig. 5 are considered removable within the meamngof the claims since either one can be removed from its closing position to facilitate aecess to the suction chamber 14 and the brush and driving-belt.

The brush construction herein shown and described is claimed in my application 266,-

312, filed March 31, 1928.

I claim:

said chamber for a driving means and a brush, said lower wall having an opening therein at a point opposite the space for the brush, the entire lower well being movable to cover and uncover said chamber.

2. In a vacuum cleaner, an open suction chamber, a drive shaft and pulley disposed in one side of said chamber, a brush and pulley disposed in the opposite side of said chamher, a belt connecting said pulleys, a plate engaging all of the marginal edges adjacent the 10 the casing adjacent the drive shaft, said plate 15 having an opening exposing only said brush.

RUBIN BASS.

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