заявка
№ US 0001759731
МПК A47L11/204

Номер заявки
2214193
Дата подачи заявки
19.08.1927
Опубликовано
20.05.1930
Страна
US
Как управлять
интеллектуальной собственностью
Чертежи 
1
Реферат

Формула изобретения

1,759,731 The tw6 brackets are preferably made of punched:sheet steel:and are wholly indepeiideiat of each other, their only connection being through the spindle of the polisher and ?thg, bearings thereof. On the inner membei5 oi each bracket is @fastened a relatively small rou'nded head 33 which is of su@h size 'as to permit of being pressed into a spring hanger through' . the open epd by the application of 10 a relatively small a@Daount o,f pressure. When once seated in . the hanger it will b6 retained by the . ressur@ exerted by the flat spring 21 -P on the two ni6mbers of the ha-nger, whieb tends to movetlie-members to-vvard eacl-i other 15 at all times. Since the heads or members 33 of the brack46ts entering the spring hangers are round,.it is neces@ary to providi@ meaiis for preventiiig the brush from rocking or moving back aild 20 forth with respect to the iiozzle 6,bout the disks 33 as pivots Eis the devlice is operated. This.is ticeompfished by @o sh-apingy ancl arranging the offset por@tions of the brackets that they engage the under surfaces Of the 25 nozzlp walls and in so-doing form relatively, large flat bearing surfaces or seats. The seat-ing portion of each bracket is provided with a pair of str@ck-up lugs 34 which e'ng-age the front and'rear lips 35 of the . no!zzle. The 3o point of connection between the p'arts 30 and 32 6f the bracket is c-ut away at 36 to provide clearance for the front floor wheels 16 on the nozzle so that it is uiln6c6ssary to adjust -the whe4@ls iii applying th6 polisher. An3r, 'other featui@ of the offsbts is that th(,y permit of the use of a polisher which, is at least is long as the nozzle opening thereby ensuring the polishiiig of a subqtantial area at each stroke. - The bearings being wholl@@ outside 40 of the nozzle and being mounted- on brackets impose no restri@tions as to the length of the pohsher. The spring hangers within the nozzle in addition to holding the,,upper ends of the brackets also serve to clamp the upper sur..45 fac6s of the olfset parts 32 agains.t the uiid'er. surface of the nozzle. This is due to the inclined fingers or parts of the hangers..which eng@ge the heads 33 at two points belo-,@ the max.unum, diameter thereof and hence to pull iso the brackets upwardl Li':motLnting the pof@her in place , the first is to re @move what may be termed the norbrush -together with its driving belt .Then one of the brackets is moved into aligna5 ment *ith a spring hanger insid the nozzle and the head or member 33 is pressed home. After this the same action is repeated with the second brack@t and its head memb or er with the result that the polisher is firmly seao cured in place. It,will facilitate the ins'ertion of the heads 33'm the hangers and their kemoval if essure be applied to the hanger Pr member 20 b y the thumb of the operator in a direction to move the same away from its ss companion part. The rubber belt 2,7 which @revious, to mouiating the polisher has to be slipped over the pulley is then pa sed UP thiough the iiozzle ani bver the p-alley oln the armature shaft. This is done through the, opening in the front wall of the nozzle 1 70 which is covered by th ' late e p eral thin . t is preferable to remove the dusf g@ I bag and also cover the -outlet of the fan casing before mounting the polisher in place. To remove the polisher it is 0 necessary to remove the belt @and then it@ by a 7r) relat@ively strong pull in a dir 0 ay from the nozzl6. The polisher rotates @ iit relativel@ high speed and iii uch direction as to pr6pel the so apparatus forward. The'operator through the handle re@trains this forward movement and it is the difference in speed between the,- peripher@l stii-face of the polisher and the forward movemeiit of th6 clevice as a whole 85 -@vhich cause-S the polishin'g- action. Any @uitable means may be employed to prevent the, reverse action o@ the polisher when the device as a whole is moved backwardly by. the operator. . Such a, device is shown in Fig.'3 go where 37 indicates'hardene d steel rollers, 38 cam surfaces a@d 39 springs to seat the rollers. With this co'nstruction, the polishing brush is free to rev6lve in one direction but ndt in the 6pposite. I have illustrated a type of spring Ilan er, whi6h is suitable for the purpoi tut Olther types ma@ b6 employed'@o:long as they fu netion to hol( the brackets and the polisher. I have illu@trated oiae type of polisher but it loo is evident that the. invention in @ its. br6ader as bctg is not limited thereto. Wat I claim as new and desire to secure by Letters Patent of the United States is.- 1. A polishing attachmeiit adapted to be 195 -,6cured under the nbzzle of a@vacuum cleane.r havin- the usual motor, fan, and spring pressed @1eaning brush hangers in the -@d noz e, comprisinz in Combiiaation a i-otary flool.. golloisher, b-rac@6ts which support the polisher 110 w the nozzle,, each of said brackets h6ving a member which extends upwardly inside the nozzle and is supported by the hangers,, a se,cond hiember which extends downwardly and support@ one end. of thb polisher, -and 5 me ans for rotatiirigthe polisher. 2. -A. polishing attacbm.ent adapt6d to be secured@under the nozzle of a vacuuni cleaner having the usu&l motor, fan, -and spr'mg essed cleanin- brush hangers in the nOz- 120 pr zle, comprisiiag @n combination a rotar y floor polisher, independent sd]Pporting brackets for the polisher, ea'ch of said brackets having ft member which supports the polisher -at one end, a second member which extends into the 125 nozzle and is @supported by- a hanger, a . nd means which eiigage the lips of the- nozzle to hold the members against rocking movements. 3. A'polishing,attachment adapted to be i3o Asa gen-

1,759,731 secured Linder the i@ozzle Of a @vacuum cleaner having the usual motor, fan, and spring pres,-,ed cleaning brush hanoers iri the nozzle, compri,sin g in combination @ rotary floor polisher, independent supporting'brackets for the polisher, each of said brackets compristwo members which are connected by an In oiset portion which latter forms a seat and enga(yes the under,@urface of the nozzle one 10 weinber of each bracket being seated in a ha-nger, and means for rotating the polisber. 4. A polishing attachmerit adapted to be se6uredunder the nozzle of a, vacuum cleaner having the, usual motor, f an, 'and spring 15 pressed cleaning brush hangors in the nozzle, comprising in combinatio-n a, rotary floor polisher wbich e@,tends lengthwise of the nozzle, and a pair of independent brackets which support th'e' polisher by its ends and below the nozzle each of said brackets having a 20 member which engages the brush and a seeond member which extends upwardly into the nozzle and is seated in a hanoer. 5. A polis@ing, attachmient ad@pted to be 25 secured under the nozzle of a vacuum cleaner having the usual motor, fan, and spring res, p 3ed cleaning brush hangers in the nozzle, comprising in combinatio'n a rotary polisher. which extends lengthwise of the nozzle, a pair of independent brack@ts for su@portiilg the pol'isher, each of said braekets having a member which engages the p6lisher at one end and a second member which extends upward into the nozzle and has an enlargement -which enters and is helcl by a hanger, ancl means for rotating the polisher. 6. A polishing attachment adapted to be secured under the nozzle of a vacuum cleaner having the usual motor, fan, and spring 40 pressed cleaning brush hangers in the nozzle, cornprising in combination a rotary polisher, independent brackets for supporting the polisher, each of -,which comprises a member ivhich enters a hanger and is held th6reby, a 45 second member which directly supports one end of the polisher, a flat surfaced element which conneefs said membe'rs and is held acrainst tl-ie end surface of the nozzle by the action of the spring hanger on the first named co member, and means for rotating the polisher. 7. A -poli I shing attachment adapted to be secured iinder the nozzle of a vacuum cleaner havin(r the usual motor, fan, atid spring pressed cileanincr brush hangers,in the nozzle, comprising in combination a rot@ry polisher located below the nozzle, bearings for the polisher, independent brackets, each of which carries one of the beari,ngs at its lower end aiid at the other end extends into the nozzle co and is seated iii a hanger, means for preventing the brackets froin rocking,,and means for rotatin(r the polisher. 8. A polishing attachment, adapted to be secured under the - nozzle of a vacuum cleanU5 er having the usual motor, fan, and spring zl pressed cleaning brush hangers in ihe noze, comprising in combination a rotary floor polis@er, means havina@ portions io support the polisher at its end@'below the nozzle and other portions which enter the nozzle, extend 70 iiito the han-ers and are held iii place by the spring pressed elements thereof, and means extendiiig downwardly to a point below the nozzle lips f or rotating I the polisher. 9. A polishinly attachment adapted to be 75 secured under tli@ nozzle of a vacuum cleaner having the usual motor, fan, and spring pressed cleaning brush hang6rs in the noz@le, comprisiiig in combination a, floor polisher, brackets for supporting the polisher below 50 the nozzle, one end of each bracket holding the polisher, the other end being seated in a. haiiger, and means located@between the ends of the brackets which engage the lips of the nozzle and,prevent,,the polisher from rock- 85 i n In witness whereof, I have hereunto set my hand ti-iis 16th day of August, 1927. JESSE F. CARSOI@. 90 95 l@DO 105 115 120 125

Описание

[1]

Patented May 20, 1930 1 1 7 5 9 7 3 1 UNITED STA-TES PATENT OFFICE JESSE F. CARSON, OF EAST CLEVELAND, OHIO, ASSIGNQR TG ELECTRIC VACUUX CLEANER COXPANY, INC., OF CLBVELAND' OHIO, A CORPORAT ION OF NEW YORK FLOOR POLISHER Appl.leation filed August 19, 1927. Serial No. 214,193. The present invention relates to floor polishers which are adapted to be applied to and i@emoved from a vacuum elleaner at Willi and when so applied are adapt-ed to be driven by the motor which normally drives the suction fan thereot. @ In order for a device of this character to be commercially successful it must be so - constructed and arranged that it can be easily 10 and quickly applied to and remove.d . from the cleaner by unskilled. persons, and this without the us6 of a too!. The present invention has for its object to provide a simplo and effective means jr, whereby a rotary polishing brush may be quickly mountedunderneath the nozzle of a vacuum clean6r aii-d in such position'that it. may be driven from the shaft of tho-cleaner motor, 6r removed therefrom. 20 For a consideration Gf what I believe to be novel and my inventi6n, attention is directed to the accompanying description: and the claims apl)ended thereto. In the atf@'ched drawling which is illu@;- 25 trative of my invention, Fig. 1 is a perspective view of a vaoutfm cleanor with the polish- er applied t]@ereto; FiLy. 2 is a perspective view of th6 polisher &ncits supporting brackets, and Fi6,. 3 is a detail view of the ratchet 30 Iiiechanisin to prevent reverse@@otation of the .polislier. 'I have cliosen'to illustrate my invention ,as applied to a well-know:il type of cle@ner, in which 5 indicates the casing of tlle drivS5 ing motor, 6 its field magnet, and 7 its armature. 8 indicates the fan casirig to which the motor casing i's connected, and 9 the suction fan which is mounted on the arm-ature shaft 10. Attached to 'tlie fan casing 40 :and usually cast integral therewith is a nozzle 11 having an open-mouth or suction inlet at its lower end. In the front wall of the nozzle is an opening which is normally lolosed by a cover plate 12 when the cl6aner 45 is in opera-tion. The discharge conduct 13 of the fan casing.is norrrlally connected to the dustbag when the apparatus is used as a vaeuunt cleaner. When the polishino, brlish is used, the end of the conduit is closed by tt 50 cover 14 to reduce the load on the motor by decreasing the effective action of the fan. 15,,indicates the operatina-liandle and 16 the floor wheels of whic,h there are three, two in the front for supportin- t,he nozzle and on6 in the rear under the ni@otor casing. r)5 Such a 6leaner in normal use is also provided with @L relatively small rotary brush whi6h is located wh@lly Ni,ithin the nozzle except for the tips of the bristles which brush the, surface being cleaned. The brush is 60 driven by a belt from a small pulley 17 located on the front end of the coinbined arinature and fan shaft 10. The brush isearried on a spindle having bearings at its ends and these are mounte'd in spring ' hangers 18 which are supported by the end walls of t-lie nozzle.- Each hanger comprises a stationary member 19 which is firmly supported by the nozzle w All through part'40 and a movable nien-iber 20. The ends of the two members 70 which are pivotally united at the top are pressed toward each other by a flat' steel 21. The inembers have out-turned lower ends and t-he space between theni is less than the diameter of the brtisli-supportijig 75 bearings. Thus-far the description lias beeii directed to a well known cleaiier as previously indicated. 25 indicates a relatively large dianieter polisher in the form of a brusli of anv Suit- 80, able construction,having bristles wllieh alte sti:ff enough to support the weight 'of the cleaner without appreei'able ben(lina tliereof at the tips. 26 indicate's a pulley located mid-. -way between the ends of the brush and by 85 means of which and a belt 27 the brush is driven by the pulley 17. The polisher has bearings 28 at its opposite ends and to eacli is secured a bracket 29 the lower portion 30 of, which is.situated wholly below the lips go of the cleaner nozzle and th@ upper part 31 wholly within the nozzle, the two parts beint), connectod by a horizontal offset portion, element or member 32. The portions of the brackets -which carry tlie heads 33 are so 95 spaced apart in an' ax'tal direction that the distancebetween them is only slightly less than the distance between tho members 40 which support the hangers. As a result of this the olisher is held'against endwise movement. ioo p

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