US2819478A - Convertible carpet scrubbing or floor polishing machine - Google Patents

Convertible carpet scrubbing or floor polishing machine Download PDF

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Publication number
US2819478A
US2819478A US402307A US40230754A US2819478A US 2819478 A US2819478 A US 2819478A US 402307 A US402307 A US 402307A US 40230754 A US40230754 A US 40230754A US 2819478 A US2819478 A US 2819478A
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US
United States
Prior art keywords
disc
carpet
ribs
scrubbing
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US402307A
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English (en)
Inventor
Otis B Sutton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoover Co
Original Assignee
Hoover Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE534663D priority Critical patent/BE534663A/xx
Application filed by Hoover Co filed Critical Hoover Co
Priority to US402307A priority patent/US2819478A/en
Priority to GB37140/54A priority patent/GB773818A/en
Priority to CH329018D priority patent/CH329018A/fr
Priority to FR1117004D priority patent/FR1117004A/fr
Application granted granted Critical
Publication of US2819478A publication Critical patent/US2819478A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4077—Skirts or splash guards
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A47L11/164—Parts or details of the brushing tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/32—Carpet-sweepers
    • A47L11/325—Shampoo devices for carpet-sweepers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • My invention relates to the art of carpet cleaning and is particularly directed to a simple, economical, replace able, attachable and detachable device for floor polishers which will enable the same to be used to do an effective job of carpet cleaning utilizing cleaning compounds such tached to an existing floor polisher without removing any parts thereof for the purpose of readily, converting.
  • polisher into an eflicient carpet scrubbing device.
  • Figure l is an elevational view, partly broken away and partly in section, illustrating a known type of floor polisher with my invention attached thereto;
  • Figure 2 is a partial sectional elevational view on an enlarged scale of a part of the device of Figure 1;
  • FigureB is a bottom plan view'of a first preferred form of a scrubbing member
  • Figure 5 is a bottomplan View of another modified.
  • Figure 7 is a view similar to Figure 6 illustrating the action of the rib on a carpet after. it has been used a short time and illustrating the manner in which the cleaning compound is worked into the carpet nap or pile;
  • Figure 8 is an enlarged sectional view of the disc of Figure 3 showing the effect of the tapered undersurface flange thereofin gliding the disc across the surface of' the carpet and preventing the same from digging thereinto.
  • this floor polishing machine comprises a main frame 1 upon which is supported a pair of drive shafts 3 connected by suitable gearing, not shown, to an electrical drive motor 2.
  • the shafts 3 project downwardly below the lower end of the frame 1 and extend through the central portion of brush backs 4 which are detachably secured to the shafts in driving relation in any desired manner. of the shafts 3 carry downwardly projecting tongue 6 for a purpose to be described hereinafter.
  • the brush backs 4 carry downwardly extending polishing bristles 5 which may be used for polishing, brushing, scrubbing or any other suitable operation as desired.
  • the frame structure 1 of the polishing machine is overlaid and covered by a protective plastic shell 8 which formsa decorative cover therefor, and an electrical insu lating shield around the electrically energized parts of the apparatus.
  • the frame 1 at opposite sides thereof carries projecting trunnion bosses 10 which pivotly support the opposite ends of handle bail 11 carrying a manipulating handle 12, only part of which is shown.
  • the scrubbing disc forming the principal subject matter of my invention is designated generally by the reference character 15 and comprises a central upstanding hub portion 16 provided in the upper part thereof with a transverse slot 17 which receives the flattened tongue 6 on the lower end of the drive shaft 3.
  • the tongue 6 and hub 16 are detachably secured together by a separable snap fastener generally designated by the reference character 18.
  • the upper half of the fastener 18 is secured to the tongue 6 by means of a rivet 14 and the lower half of the fastener 18 is secured to the hub 16 by means of a rivet 19.
  • the disc 15 may readily be attached to and detached from the shaft 3 without in any way interfering with the brush structure on the polisher. Additionally, the fastener and drive structure for the disc is elevated above the lower ends of the brush bristle 5 so as not to interfere with their functioning when the disc 15 is not applied to the machine.
  • the disc 15 is provided with a flat upper face 2% surrounding the central hub 16 against which the brush bristles hear.
  • the flattened tongue 6 fits loosely into the complementary slot 17 to form a loose but positive dri' ing connection therebetween.
  • the snap fastener 18 holds the disc 15 to the tongue 6 firmly against axial forces but cooperates with the loose drive of the disc 15 to permit some rocking movement between thedisc and shaft-which is desirable as providing resiliency to permit the disc to Patented Jan. 14, 1958,
  • the lower ends travel over any inequalities in a carpet being worked on.
  • the brushes resiliently engage the disc to resiliently resist rocking movement thereof and also resiliently transmit some of the weight of the polisher structure to the discs.
  • the lower surface of the disc 15, designated generally by the reference character 21, is tapered to a slight extent upwardly and outwardly from the lower portion of the hub 16 as shown most clearly in Figures 1 and 8 and terminates at its outer periphery in an upwardly and outwardly inclined peripheral surface 23.
  • the bottom surface of the disc comprises a central, substantially-circular rib 24 at the lower portion of the central hub 16 which rib connects to a plurality of radial ribs 26 joining a substantially-circular peripheral rib 27 which in turn joins the surface 23.
  • the ribs 26 and circular ribs 24 and 27 are separated by shallow depressions 25 formed in the bottom surface 21 of the disc as viewed in Figure 3 or as viewed in Figure 1 the depressions 25 are raised with respect tothe bottom surface 21 of the disc so that the ribs 24, 26 and 27 form the principal portions of the disc which actually come into contact with and sink into the pile of the carpet undergoing cleaning. That is, the disc is provided with alternate protrusions 26 and depressions 25.
  • the ribs 26 are smoothly rounded in cross section and are curved to merge gradually with the depressions 25 to avoid rough surfaces or abrupt joints which produce carpet wear while insuring desirable scrubbing and agitation of the carpet.
  • granular cleaning material indicated generally by the reference character 30 is lying on the surface of the nap or pile 31 of a carpet 32 which is to be cleaned.
  • the granular cleaning material indicated generally by the reference character 30 is of the type consisting of a carrier such as wood flour which is impregnated with suitable carriers and cleaning compounds which are either organic or inorganic whichever may be desired.
  • a carrier such as wood flour which is impregnated with suitable carriers and cleaning compounds which are either organic or inorganic whichever may be desired.
  • suitable carriers such as wood flour which is impregnated with suitable carriers and cleaning compounds which are either organic or inorganic whichever may be desired.
  • a number of these compounds are known and marketed at the present time and a common example thereof is that disclosed and claimed in U. S. Letters Patent to Edwards, Number 2,364,608.
  • the radial rib 26 advances into the nap in a rotary direction it causes the nap or pile 31 to bend and scrubs the compound 30 against the individual elements thereof and at the same time forces the compound deeply into the pile or nap as the rib opens the same in the manner illustrated in Figures 6 and 7. This action is very vigorous and scrubs the compound 30 into intimate and forceful engagement with each element of the carpet nap to insure the same will be cleaned with maximum facility.
  • the disc 15, which is preferably of plastic material as illustrated but which may be made of metal, is smooth surfaced on all portions thereof which are likely to contact the carpet so as to produce a vigorous agitating and scrubbing action thereon without abrading the same and producing undesirable wear.
  • the granular cleaning material together with the soil which it has removed from and absorbed from the carpet, may be removed with a suction cleaner or in some similar manner.
  • the discs 15 may be readily and simply attached to the polisher and removed therefrom without in any fashion altering or affecting the relation of the mechanical parts thereof and, in particular, without disturbing the brushes.
  • to restore polisher to its original function it is only necessary to snap the discs 15 away from the ends of the shafts 3 and the polisher is restored.
  • to condition the polisher for carpet scrubbing it is only necessary to snap the discs 15 onto the ends of the shafts 3.
  • the device comprises a disc 40 having an upper surface, a central hub structure, driving means and fastening means which are identical in every respect with the disc 15 previously described.
  • Those portions of the disc 40 which are identical with disc 15 are given the same reference character distinguished by the addition of a prime.
  • the lower surface of disc 40 is designated generally by the reference character 41 and is substantially flat though tapered upwardly and outwardly from the center in the manner of the surface 21 on the disc 15. It does not, however, have circular, central and peripheral ribs corresponding to the ribs 24 and 27.
  • the disc 40 is provided with a plurality, six in the illustrated form, of downwardly-projecting, rounded-edge ribs 42 which are nonradial; that is, their longitudinal center lines are set at an angle to any radius which they intersect.
  • the ribs 42 are so angled with respect to the direction of rotation of the disc, indicated by the arrow, that their outer ends lead their inner ends whereby they exert a pumping action on the granular cleaning material, tending to work the same into the center of the disc as it is rotated in the direction of the arrow.
  • This form of the invention gives a more vigorous cleaning action than that illustrated and described with respect to the disc 15 because of the greater length of the ribs 42 and the greater penetration thereof into the nap.
  • the disc of the type illustrated in Figure 4 is not generally necessary but is desirable for very highly soiled carpet.
  • the angularity of the ribs 42 has been found effective to prevent centrifugal discharge of the granular cleaning material even though there is no peripheral rib such as the rib 27 present in this form of the invention.
  • FIG. 5 there is illustrated a third form of disc generally designated by the reference character having an upper surface and mounting arrangement which is identical in every respect with that illustrated and described above in connection with the disc 15.
  • the lower surface of the disc 50 indicated generally by the reference character 51 is substantially planar.
  • the surface 51 is provided with a plurality of downwardly-extending, narrow, rounded-edged,
  • radial ribs 52 which extend from a point spaced from the central portion of the disc outwardly to a peripheral, sub 3 stantially-circular rib 27" which in turn merges with a peripheral upwardly and outwardly directed guide surface 23.
  • the ribs 52 and 27 are slightly tapered as is the lower surface 21 of the disc 15, that is, the inner ends of the ribs 52 project downwardly below the surface 54 a slightly greater distance than to their outer ends and the circular rib 27" to facilitate skidding of the disc such as is illustrated in Figure 8 for the disc 15.
  • This form of the invention is somewhat simpler to make than the disc 15 but has slightly inferior support on the carpet due to the absence of the central rib structure 24.
  • the cleaning effectiveness of the construction illustrated in Figure 5 is substantially the same as that of the disc 15 illustrated in Figures 1 and 2 and is slightly less expensive, but requires slightly greater effort to force the same across the carpet due to having a lesser supporting structure actually engaging the carpet nap or pile.
  • a machine for scrubbing granular cleaning material into a carpet comprising a frame structure, a vertical driven shaft on the frame structure, and a carpet engaging disc drivingly connected to the lower end of the shaft so as to form a support for the machine on the carpet, the lower face of said disc sloping upwardly from its central portion toward its outer peripheral edge so as to aid in propelling the machine over the carpet, a plurality of downwardly facing carpet engaging ribs formed on the underside of said disc, said ribs being smoothly rounded in cross-section so as to enter into the carpet pile and work granular cleaning material thereinto as said disc is rotated, the under side of said disc between said ribs being disposed above the carpet for confining a supply of granular cleaning material on the carpet between said ribs.
  • a surface treating tool comprising a floor olisher including a frame, a drive motor on the frame, a shaft driven by the motor, a floor polishing brush drivingly connected to the shaft and a manipulating handle attached to the frame, a carpet scrubbing disc, means forming a detachable driving connection from the shaft to the disc, the disc having an upper surface adapted to be engaged by the brush to form a resilient backing for the disc and to elevate the brush above a carpet being cleaned and the disc having carpet engaging scrubbing protrusions on the lower face thereof for scrubbing a cleaning agent into and against the carpet nap or pile, said protrusions supporting the disc on the carpet and said disc having an underside disposed above the carpet for confining a supply of granular cleaning material on the carpet between the protrusions.
  • a sunface treating device comprising a frame having a downwardly projecting driven shaft therein terminating in a clutch member having one element of a separable snap fastener on the lower end thereof, a carpet cleaning d1sc having an upstanding central hub terminating in a clutch member complementary to the clutch member on the shaft and having another element of a separable snap fastener thereon engaging the snap fastener element on the shaft, and the lower face of the disc having carpet agitating protrusions thereon, for supporting the disc on the carpet, said disc having its underside disposed above the carpet for confining a supply of granular cleaning material on the carpet between the protrusions and resilient means attached to the shaft adapted to engage the upper face of the disc around the hub.
  • a carpet cleaning device adapted to be attached to a rotatable shaft on a floor surface treating machine compris ng a disc member having a driving and attaching device on the upper surface thereof and carpet agitating protrus ons projecting from the lower face thereof, said protrusions supporting the disc on the carpet and being in the form of non-radial ribs having smoothly rounded contours in cross section in which the outer ends of the ribs lead the inner ends thereof with respect to the directron of rotation of the disc for urging a cleaning agent toward the center of the disc and said disc having its underside disposed above the carpet for confining a supply of: a granular cleaning agent on the carpet between said n s.

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  • Cleaning In General (AREA)
  • Brushes (AREA)
US402307A 1954-01-05 1954-01-05 Convertible carpet scrubbing or floor polishing machine Expired - Lifetime US2819478A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE534663D BE534663A (enrdf_load_stackoverflow) 1954-01-05
US402307A US2819478A (en) 1954-01-05 1954-01-05 Convertible carpet scrubbing or floor polishing machine
GB37140/54A GB773818A (en) 1954-01-05 1954-12-23 Improvements relating to apparatus for treating carpets with granular cleaning material
CH329018D CH329018A (fr) 1954-01-05 1954-12-29 Appareil ménager
FR1117004D FR1117004A (fr) 1954-01-05 1955-01-04 Perfectionnements aux appareils pour le brossage des tapis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US402307A US2819478A (en) 1954-01-05 1954-01-05 Convertible carpet scrubbing or floor polishing machine

Publications (1)

Publication Number Publication Date
US2819478A true US2819478A (en) 1958-01-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US402307A Expired - Lifetime US2819478A (en) 1954-01-05 1954-01-05 Convertible carpet scrubbing or floor polishing machine

Country Status (5)

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US (1) US2819478A (enrdf_load_stackoverflow)
BE (1) BE534663A (enrdf_load_stackoverflow)
CH (1) CH329018A (enrdf_load_stackoverflow)
FR (1) FR1117004A (enrdf_load_stackoverflow)
GB (1) GB773818A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917760A (en) * 1956-11-12 1959-12-22 Black & Decker Mfg Co Electric hand drill powered floor polisher
US2956296A (en) * 1958-09-11 1960-10-18 Westinghouse Electric Corp Surface cleaning apparatus
US3008168A (en) * 1958-12-08 1961-11-14 Doyle Thomas Abrasive polishing wheel
US3047897A (en) * 1959-02-13 1962-08-07 Electrolux Corp Floor treating devices
US3078489A (en) * 1959-02-09 1963-02-26 Brillo Mfg Company Inc Metal wool pad
US3120016A (en) * 1960-12-23 1964-02-04 Knapp Rug shampoo machine
US3277507A (en) * 1964-07-28 1966-10-11 Gen Floorcraft Inc Rug shampoo attachment
US3441969A (en) * 1967-03-08 1969-05-06 Singer Co Shampooing attachments for reciprocating floor polishers
US5249325A (en) * 1990-10-18 1993-10-05 Wilen Manufacturing Co., Inc. Brush and bonnet carpet cleaning assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000629B1 (en) * 1977-08-02 1981-11-11 Milliken Research Corporation Carpet cleaning device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498255A (en) * 1923-03-23 1924-06-17 Winchester Carey Carter Rug and fabric cleaning device
US1778470A (en) * 1928-11-16 1930-10-14 Stratmore Company Surfacing apparatus
US1988193A (en) * 1930-07-18 1935-01-15 Inventia Patent Verwert Ges Floor treating machine
US2289117A (en) * 1940-06-22 1942-07-07 John T Harrison Cleaning machine
CH276664A (fr) * 1949-01-20 1951-07-31 Engel Willy Machine centrifuge à nettoyer une surface sensiblement plane.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498255A (en) * 1923-03-23 1924-06-17 Winchester Carey Carter Rug and fabric cleaning device
US1778470A (en) * 1928-11-16 1930-10-14 Stratmore Company Surfacing apparatus
US1988193A (en) * 1930-07-18 1935-01-15 Inventia Patent Verwert Ges Floor treating machine
US2289117A (en) * 1940-06-22 1942-07-07 John T Harrison Cleaning machine
CH276664A (fr) * 1949-01-20 1951-07-31 Engel Willy Machine centrifuge à nettoyer une surface sensiblement plane.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917760A (en) * 1956-11-12 1959-12-22 Black & Decker Mfg Co Electric hand drill powered floor polisher
US2956296A (en) * 1958-09-11 1960-10-18 Westinghouse Electric Corp Surface cleaning apparatus
US3008168A (en) * 1958-12-08 1961-11-14 Doyle Thomas Abrasive polishing wheel
US3078489A (en) * 1959-02-09 1963-02-26 Brillo Mfg Company Inc Metal wool pad
US3047897A (en) * 1959-02-13 1962-08-07 Electrolux Corp Floor treating devices
US3120016A (en) * 1960-12-23 1964-02-04 Knapp Rug shampoo machine
US3277507A (en) * 1964-07-28 1966-10-11 Gen Floorcraft Inc Rug shampoo attachment
US3441969A (en) * 1967-03-08 1969-05-06 Singer Co Shampooing attachments for reciprocating floor polishers
US5249325A (en) * 1990-10-18 1993-10-05 Wilen Manufacturing Co., Inc. Brush and bonnet carpet cleaning assembly

Also Published As

Publication number Publication date
CH329018A (fr) 1958-04-15
BE534663A (enrdf_load_stackoverflow)
GB773818A (en) 1957-05-01
FR1117004A (fr) 1956-05-15

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