US2022239A - Suction nozzle - Google Patents

Suction nozzle Download PDF

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Publication number
US2022239A
US2022239A US716378A US71637834A US2022239A US 2022239 A US2022239 A US 2022239A US 716378 A US716378 A US 716378A US 71637834 A US71637834 A US 71637834A US 2022239 A US2022239 A US 2022239A
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US
United States
Prior art keywords
suction nozzle
nozzle
casing
shaft
strips
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
US716378A
Inventor
Harkness William Faustus
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Individual
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Individual
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Publication date
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Publication of US2022239A publication Critical patent/US2022239A/en
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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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0422—Driving means for the brushes or agitators driven by the rotation of the supporting wheels on which the nozzle travels over the floor
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/045—Friction gearings

Definitions

  • This invention relates to a suction nozzle for vacuumcleaning apparatus of the'kind having a rotary element or beater mounted in the mouth thereof. While having particular reference to a suction nozzle adapted to be connected to its associated suction producing device in a readily detachable mannerv the invention is obviously not limited in its application to such nozzles.
  • An object of the invention is to provide a suction nozzle having a rotary element or beater that will have an extremely strong brushing or cleaning action.
  • Another object of the invention is to provide a suction nozzle having a rotary element or beater 16 that will not gather and become choked with fluff as do bristle brushes.
  • Another object of the invention is to provide a suction nozzle in which rapid alternations of pressure occur at the mouth of the nozzle.
  • Figure 1 is a front elevation of a. suction nozzle in accordance with my invention
  • Figure 2 is a vertical section therethrough taken on the line 2-2 of Figure 1.
  • the nozzle com- 80 prises a casing I whichis open at the bottom and is secured at the top'to a pipe 2 by means of which it can be detachably connected to a suction producing device.
  • the casing I is supported at each end by a rubber-tired, I-section wheel 3 which is ll carried on a stub axle projecting from the end of the casing.
  • a pinion 4 Secured to the inner face of the web of each wheel 3 is a pinion 4 which mesheswith a smaller pinion 5, fast on one end of a shaft 6 journalled in the ends of the casing I.
  • Secured U to the shaftii are two diametrically opposite strips of rubber, felt, fibre or other flexible and resilient material.
  • suction nozzle comprising an open-bottomed casing, a rotary shaft journalled in said casing and a number of strips of resilient material each secured at one edge to said shaft, the said strips being disposed opposite one another on the shaft and coacting with the nozzle to substantially interrupt passage of air through the nozzle when said strips are transversely of the nozzle during their rotation.
  • a suction nozzle comprising an open-bottomed casing, a rotary shaft journalled in said casing at a distance from the bottom thereof equal to less than half'the width of said casing and a number of pairs of diametrically opposite strips of resilient material each secured at one edge to said shaft and each of a width equal substantially to one half the width of said casing.
  • a suction nozzle comprising a casing having an air passage therethrough, a rotary member comprising a shaft and vanes projecting diametrically from said shaft mounted in said casing and operative to intermittently close said air pas-,- sage during the rotation of the shaft whereby said air passage is alternately guarded by the vanes and unguarded thereby during, the rotation of the shaft.

Description

Now-"26,1935. w; F. H RKNESS Y ,0
I SUCTION'NOZZLE Fi led March 19, 1954' Patented Nov. 26, 1935 PATENT OFFICE.
' SUCTION NOZZLE William Faustus Harkness, London, England Application March 19, 1934, Serial No. 716,378
In Great Britain March 23, 1933 3 Claims. (01 15-155) This invention relates to a suction nozzle for vacuumcleaning apparatus of the'kind having a rotary element or beater mounted in the mouth thereof. While having particular reference to a suction nozzle adapted to be connected to its associated suction producing device in a readily detachable mannerv the invention is obviously not limited in its application to such nozzles.
An object of the invention is to provide a suction nozzle having a rotary element or beater that will have an extremely strong brushing or cleaning action.
Another object of the invention is to provide a suction nozzle having a rotary element or beater 16 that will not gather and become choked with fluff as do bristle brushes.
Another object of the invention is to provide a suction nozzle in which rapid alternations of pressure occur at the mouth of the nozzle.
20 With these and other objects in view the invention comprises certain novel combinations of.
parts shown in the accompanying drawing and hereinafter more fully described andclaimed.
In the drawing: 26 Figure 1 is a front elevation of a. suction nozzle in accordance with my invention;
Figure 2 is a vertical section therethrough taken on the line 2-2 of Figure 1.
Referring now to this drawing, the nozzle com- 80 prises a casing I whichis open at the bottom and is secured at the top'to a pipe 2 by means of which it can be detachably connected to a suction producing device. The casing I is supported at each end by a rubber-tired, I-section wheel 3 which is ll carried on a stub axle projecting from the end of the casing. Secured to the inner face of the web of each wheel 3 is a pinion 4 which mesheswith a smaller pinion 5, fast on one end of a shaft 6 journalled in the ends of the casing I. Secured U to the shaftii are two diametrically opposite strips of rubber, felt, fibre or other flexible and resilient material.
When the nozzle is moved over the surface to be cleaned the friction wheels 3 rotate and, acting through the step-up gearing 4, 5, cause rapid rotation of the beater shaft 6. The distance of the shaft 6 from the surface of the article to be cleaned is less than the width of the strips I, so that owing to their resilience the latter have a strong brushing action on the article to be cleaned. Moreover, the parts are so dimensioned that when the strips 1 lie in the position shown in dotted lines in Figure 2 they almost completely close the suctionpassage. Thus as the nozzle is 10 moved over the article to be cleaned, rapid alternations of pressure occur within the suction nozzle. This greatly improves the cleaning effect,
and in particular the capacity of the nozzle for picking up threads and similar articles.
What I claim and desire to secure by Letters Patent is:-
1.'A suction nozzle comprising an open-bottomed casing, a rotary shaft journalled in said casing and a number of strips of resilient material each secured at one edge to said shaft, the said strips being disposed opposite one another on the shaft and coacting with the nozzle to substantially interrupt passage of air through the nozzle when said strips are transversely of the nozzle during their rotation.
2. A suction nozzle comprising an open-bottomed casing, a rotary shaft journalled in said casing at a distance from the bottom thereof equal to less than half'the width of said casing and a number of pairs of diametrically opposite strips of resilient material each secured at one edge to said shaft and each of a width equal substantially to one half the width of said casing.
3. A suction nozzle comprising a casing having an air passage therethrough, a rotary member comprising a shaft and vanes projecting diametrically from said shaft mounted in said casing and operative to intermittently close said air pas-,- sage during the rotation of the shaft whereby said air passage is alternately guarded by the vanes and unguarded thereby during, the rotation of the shaft.
WILLIAM FAUSTUS HARKNESS.
US716378A 1933-03-23 1934-03-19 Suction nozzle Expired - Lifetime US2022239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8774/33A GB416682A (en) 1933-03-23 1933-03-23 Improvements in vacuum cleaning apparatus

Publications (1)

Publication Number Publication Date
US2022239A true US2022239A (en) 1935-11-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
US716378A Expired - Lifetime US2022239A (en) 1933-03-23 1934-03-19 Suction nozzle

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US (1) US2022239A (en)
GB (1) GB416682A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2532649B (en) * 2013-07-31 2017-11-22 Dyson Technology Ltd Cleaner head for a vacuum cleaner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788015A (en) * 1952-04-23 1957-04-09 Rockwell Mfg Co Ball valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2532649B (en) * 2013-07-31 2017-11-22 Dyson Technology Ltd Cleaner head for a vacuum cleaner
US10117554B2 (en) 2013-07-31 2018-11-06 Dyson Technology Limited Cleaner head for a vacuum cleaner

Also Published As

Publication number Publication date
GB416682A (en) 1934-09-19

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