US1227682A - Cleaning device. - Google Patents

Description

Patented May l H,y S35/HTH Q MBLANCH.

CLEANNG DEVICE.

mmc/mor.' man sv'rA 3, 1913.

ARTHUR H. SMITH AND MALCOLM BLANCH, 0F WORCESTER,`MASSACHUSETTS, ASSIGN ORS TO DOMESTIC VACUUM CLEANER COMPANY, OF

A CORPORATION 0F MASSACHUSETTS.

WORCESTER, MASSACHUSETTS,

`CLEANNG- DEVICE.

Speciiicaticn of Letters Patent.

Patented May 29, 1917.

Application filed September 3, 1913. Serial No. 788,026

To all 1e/minet may concern:

Be it known that we, ARTHUR H. SMITH and MALCOLM BmNon, citizens of the United. States, residing at lVorcester, in the county ot lilorcester and State of Maseachusette, have invented a new and useful Clean ing Device, of which the followingis a specification.

This invention relates to a combined vacuurn cleaner and brush. sweeper and the principal objects thereof are to provide a sini pleT cheap and practicable construction in which the brush sweeper can be kept ont of *commission until after the suction cleaner has taken up the loose dust, thuspreventing the i'aisingot dust and rendering the device thoroughly efficient for all purposes, and ein trernely sanitary; to provide a brush cleaner that will occupy a minimum amount of space and will be so located with respect to the `wheels for operatingthe pneumatic part of the cleaner that they will not interfere with the edective operation thereof,and yet will operate the brush with. a high degree of efficiency. Also to provide an improved. construction of frame for supporting the brush and its operating devices and improved. means for adjusting and holding the frame so as to secure a maximum efficiency in the operation of the device.

The invention also involves improvements in details of construction as will appear hereinafter,

lyei'erence to be had to the accompanyingdrawings in which,

Figure il a side elevation ofa combined pneumatic and sweeper cleaner constructed in acordarme with this invention;

Fig. 2 is slt-longitudinal central sectional view ot a portion of the saine; l

Fig. 3 is a plan of the brush supporting frame and connected parts; and

Fig, fi an end eleva-tion showing the details of the means .for holdingbr the sweeper roller in position.

Vr.Phe invention is shown as applied to a well.known type of pneumatic cleaning' device comprising a main. casing .10, suction prodnicingdevice or bellows 11,' nozzle l2 at the liront end oi' the casing, and rollers 13 at the rear.' end. ci the casing `for supporting that end ot the casing and operating the bellows through pitrncn connections 14 or the like as usual in this class of pneumatic cleaners, the machine is operated by a handle 15 pivotally cminectcil by a Vbail or the like 1G with the body of thecasing, adapted to be held in vertical inoperative position by a clip 17 or the like. It is to be observed, however, that the bail is pivoted to the casing itselil in front of the operating wheels 13 and substantially on a level with the top thereof so that the pressure applied in pressing down on the handle in the usual Way ot operating will tend to swing the nozzle or front end of the casing about the operating wheels as a center and keep the nozzle in proper contact with the surface to be cleaned.

The dust box 18 of the main casing 10 is shown as recessed at the bottom and in thisy recess is fixed an auxiliary casing 20. This auxiliary casing is intended to be a permanent part oit the device and while it can be removed for repairs, it is not intended to be removed in the ordinary use of the machine. This casing is provided with a frame pivted thereto by means of screws 21 or other pivots located between the nozzle 12 and the `rollers 13 and in fact, substantially half way' between them. This :trame comprises a pair of. side arms 22 and a transverse rod 23. Adjacent to the two side arms are brackets 24C parallel with them and spaced therefrom.`

These are bent up at their ends and riveted to the transverse rod 23. These parts 22, 2,3 and 24 are preferably formed of sheet metal died out into shape, as indicated in 3, the connection between one of the arms 22 and the rod 23 being doubled. upon itself at 25 to provide a projecting handle foroperat- ,ing the-frame from the side. Journaled between each piece 24 and the acent arm 22 is an operating roller 26 preferablycovered with rubber or the like. Each of these rollers is adapted to be engaged by a roll 27 fixed on the shaft 28 of a rotary brush 29.

For the purpose of securing an intimate contact between the rolls and the rollers,

eachmrni 22 is provided With a spring 30 held between a pin 31 lixed to the arm, and a sheet metal support 32 slidably inounted von the arm and having on the inner side thereof a cylindrical projection which extends into the end of the shaft 28 and forms a journal therefor.

The shaft of the brush 29 passes through slots 34: in the auxiliarycasing 20. The auxT firmly down in contact with the'surface -to 40 is arranged to bear onthe rod 23 and t is motion is limited by a stop 41 engaging the lower side of this rod 23. his spring and stop thus hold the f aine in operative position. When it is be cleaned, a. sprin l-d 'ir to ut the brush out of operation,

fthe f Iame is pressed upwardly around itspif-ots against the resistance' of the spring AU `dntrl it comes above the top of a spring ylatch l2-which then holds it in its elevated i inoperative position.

rollers 13 It xwillbe noticed that the brush is located between l: e nozzle and the main operating but nearer the latter, and that the operating `=r0llers 26fo'r the `brush are 1ocated betweenv the-brush and the main operating' rollers 13 so as to be as far from the nozzle as is convenient. This arrangement with v"the auxiliary casing or brush.

sweeper at' the rear of the bottom of the main casing results in securing a. high degree of pressure on the rollers 26 from thev handle 1 5. On account of this arrangement of 'the parts, both sets of 1ollers'are in position to receive suiiicient pressure to insure their effective operation under vall ordinary conditions. to regulate the vertical position of the nozzle so that the' device can be used effectively on different kinds offsuifacesl It will` be seen,` also, that the rollers 26 are held 'firmly in .a rigid frame and are supported thereby `at both `ends so that. there is no danger of getting out of true or wabbling-on their' axes.'

By the adjustments specified, all desired combinations of the pneumatic cleaner and sweeper can be obtained. That is to say, the two can be used together|- for the purpose of securing a maximum cleaning action, or

when itis desired to use the pneumatic cleaner alone such resistance as is provided by thebrush sweeper can be eliminated by turning it up out of operative position. It'

will be understood that ordinarily `the cleaner is pushed forward so that the nozzle passes over the surface to be cleaned, before the brush; consequently the duty 'of the vbrush is merely to pick up threads, vapcrs or other things which have escaped t ie action of thesuction cleaner. It will be seen, there-l fore, that on account of the well known eili- -ciency of the suction device itself, the brush does not have a high duty. to perform and consequently la comparatively small pair of pans for dust is sufficient. It has been found in practice that"@w-itl1 materially taking ied -by thel dust away from the The adjustable rollerf45 is used box, a brush sweeper can be inserted in the position indicated in this application, of such a character -as to perform this duty with an extremely high efficiency.

'Although we have illustrated and de-A scribed a specific form of the invention, We are aware 'of the fact that modifications can be made therein by any person skilled in the :,rt without departing from the scope of the invention as expressed in the claims. There- .t'ore we do not wish to be limited to all the details of construction herein shown and described, but

lVhat we do claim is,-

l. The combination with a supporting frame, and rollers for supporting the end of the frame, of a complete brush sweeper located close to said rollers under the bottoni of the fraaie, and comprising a rotary brush, rollers for opera-ting the brush located between the brush and the first named-1" rollers, and "means for adjusting'thebrush rollers into andoutof contact with the sur# face to be cleaned.

2. The. combination with a main casing, and rollers for supporting one en'd thereof, of an auxiliary casing located under said main casing near said' rollers, a brush c arried by said auxiliary casing, a roll on each cndof' tlie'brush, and a pair of rollers supported from said auxiliary casing-between the brush and irst named rollers, and adapted to .engage the surface to be cleanedand I for the purpose o-i "'1'00.

also to engage said rolls, operating lthe brush.- Y 3. The combination with a casing havingy a support ,at one end and supporting rollers at the other, of a frame pivoted en thebot# tom of said casing between the support and rollers and having itsfree end adj acenttosaid said frame,

ried by said frame and having rolls thereon',

a pair of rollers journaled on said frameffor operati-ng the rolls and brush, and .springs on the vfranie for holding said rolls yield'- 1'ngly in contact with the rollers. A

5. The' combination of a frame comprisinga pairof side arms,a transverse rod,

arms, a pair ofl 12 connecting-,the ends of said longitudinal pieces parallel with said arms .and spaced from them connected'with said transverse rod at one end and'with the arms atlthe other'en'd, said pieces and arms having journals thereon, a pair of rollers, one 13o ,ice rollers, a second pair of rollers journaled on the freine up 1n opposition to said *yielding in gseid frame stop.

journaled between each of said pieces and the adjacent arm, a brush carried by seid frame, and Ineens for driving seidV brush from the rollers. f

In a carpet cleaner, the combination of a support, a sweeper casing on the bottom thereof, a movable frame, :L brush, a roller carried by said frame for operating the brush, a, stop, und yielding means for hold- (lown in Contact with said 7. In of a support, a movable frame, e brush, a roller carried seid frame for' operating the brush, yielding mea-ns for holding seid frame down, andpositive means for holding means, said positive means being detachably connected With the" frame.

8.*In a--eerpet cleaner, the combination of zt 'movable ,frame Vcomprising ltjpairV of side arms, a roller carried by eeelrv Verm for engegin f the surface to Vbe elelmfil,V e sup?.

a carpet cleaner, the combination ing means for moving each support toward one 'of the rollers, L brushsluxft carried by Said supports, and a pair of rolls fixed on said shaft engaging said rollers.

9. In a carpet cleaner, the combination of a movable frame comprising a. pair of side arms, a roller carried by each arm for engaging the surface to be cleaned, al sheet metal support slidubl y mounted on eeeh aufm,

scribing Witnesses.

ARTHUR H. SMTPL v MALCOLM BLANCH. Witnesses: ALBERT E. FAY,

C. Forensi* Wesson.

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