US911702A

US911702A - Street-sweeping machine.

Info

Publication number: US911702A
Application number: US31470406A
Authority: US
Inventors: Vincent D Carroll
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-05-01
Filing date: 1906-05-01
Publication date: 1909-02-09
Anticipated expiration: 1926-02-09

Description

Y. CARROLL. 'STREET SWEEPING MACHINE.

APPLICATION FILED MAY 1, 1906.

Pat-@mea Feb. 9, 1909.

0v *j Mime wbt/neon@ fPArnivT-orrion VINDEN-Tf D- CARROLL.' OF l sail, 'Fiiaivoisoo, CALIFORNIA v 'No'. 911,702.

' Sil-G vcation of-:L-ettere Patent. j

Pateatd'res, 9, "i909,-

ToalZ whom 'iff/ neg concern: I

Be it known vthat I-,g

VINCENT D. Canoni.,

Machines, Ofx'whicli' the following is a specification. v

f The present invention relates .t improve ments n istreet 'sweeping machines, and par- .ticularly tothe' constrn'ctionof rotaryA brushes 'for vsuch machines. The particular obi'ect .of the, invention vis 'to-'provide a 'brush for this purpose which .will adapttself tty -ineqnalities'in the' snrface 'over which i t is'inoved and thereby eEecta-more 'etlicient v cleaning'thaI'i is pos-- sible with the constructions commonly innse'. In the, accompanying draWingf- F igure11j v is a plan view of a'portion of a street sweeper,"

shaftandprovide'dwith diskLli'ke-fianges 14 havingv itsy 4b ruslfi constructed in' accordance with thepresent invention', Fig. 2 is a longi' tndinal sectional -view through tliefbrnsh, on'

anenlargedscale; Fig. 3 is-a transverse secr" tional vier;1 through the vbrn'sh, o n the line"4 3-.43 of B ig. 9j Fig- V 4 is a'idetail view illus.- f ti'ating, a', slight modification ofgtheform' voff" shaft' i8 and-hub 10i off the brush sections.

invention showninfthe othergres.

Referring to the. drawings-'1, 1 designate' two of the wheels vof street lsv'vfeeping Inachine, on the axle 2 of'avhichis mounted a driving 4gear 3. .This @gear mesh'esfwith 'a' lpinion 4,2 'Which-isI mounted on an Aauxiliary shaft- 5, a ,suitable ys 'procketfon Which'iscon-l nected'by 'a chain G ivitha sprocket? onthev brush driving-shaft. 8.' 4This shaftis jour-- naled in suitable bearings formed at theendsof arms 9 extending' rearwardly: from. 1the 'ax e 2.

The brush *comprises a 'seriesof similar sections arranged- -si'd'e 'by side 4about the shaft S and' each independently col'inectedA therewith '-as' hereinafter described. @As shovvmthe hub -or body V10' of each section'of the brush Iis providedvvith a passa-gefllQ-the diameter of which fis ,considerably greater 'han' that 'ofy the shaft- 8,' and'the'connection. "between the shaft and .hub V"1s-such that eachsection of the brush free1 to' 'Inove transversely relative to'` the shaft;

The shaftmegbe connected with'4 eacli-o; .x th'esections by any suitable means which, 'while 4communia ting the rotary 'movement of the shaft to the 'brnsh seotion,-will 'permit' the latter to Vmore vertically to ,accommodate itself to'A irregularities 1n` "the surfaceeeye' liwhich if imovea. As'shownii rigs. eine 3,"the hub l'Oof 'each'brush 'section isconnected with the shaft by al flexible band 12. It Willbe seen-that this connection offers no obstruction to a free vertical; movement .of thesec'tion relative to the 'shaft so that when `'any-section of the brushA .ijs moved over `a depression in the surface being cleaned, for

eX'ample,'t-he brush section will lfall until it reachesthebottom of suchdepression; and

`similarly if an obstrnction ,o'r elevation is 1n move npfwardly so as'to clear the saine withoiitin 'any manner effecting the vertical p0- sition' of the othersections of the-brush.

Any suitable means may" be `provided for l holdingtheseveralbrush sections in proper position on the sha-ft orI limiting movement thereof l ongitlid-inally.` of Athe shaft.l As shown, suitablecollars 13 are fitted to the of such diameter as to always extend across 'driving'-sprocket'-7- may beconnec'ted to. or formed integraL with one'ljof said' collars 13. InFig-i 1s illustrated a slightly modified forni of connection 'between .the driving .In thisembodiment'ofthe invention,- the :the-'hubs'of theseveral briish sections.. The

shaft 8 isy provided with radially projecting pins 15, eacli e.\ t'end'ing throu h an aperture sa-id 'aperturel being relatively large so' that ythe 'finge-rio does not interfere with the free "vertical movement of the brush section While transmitting rotaryniotion .from the' driving'shaft. fj- 4 The operation gend :advantages of the, in-

. -ventionwill l-loe'redily understood from the.

foregoing 'descript-ion and 'the drawings. `1R eferring, particularly to Fig- 2 it will e 'seen vthatthebrush Willautomat-ically adapt- I n .a' street sweeping machine', the coni- -.binati on of a wheeled support or carriage,

"n mounted -infbearings 'carried by s'aid .carriage-and adaptedjtobe 'revolved as 'the 'i' latterisi moved,v a brush comprising a pluralityofsection-s snrroimdingtheshaft and gravity to Iapositioneccentric to the shaft, and means4 for;

' nient' from the shaftto the brush.

each' freelyinovableradially of the shaft by '.110 transmittingfrotarymove- Sie' . the brush. 'l ln a stieet sweeping machine,the comloi-nationl of a wheeledfsupport or carriage,`a Shaftmounted. in bearings carried by said` carriage and adapted to be revolved as the latter .is moved, a briish comprising a plu# a street sweeping machine, the com-i l'bination of a wheeled support or carriage a shaft mounted. 1n bearings carried by said 'carriage and adapted to. be revolved as the latter ismoved, a-brush comprising a plurality of sections each ,circular in 'cross secj tion and extendingcontinuously about the shaft, each of said sections being-freely mov.

able .by gravity toa positiony eecen'tric'to the `shaft as it is moved over. a depression inthe siiifacebeing swept,"and 'means for trans itti-ng rotary Vmovement from the-shaft-g-to to said sections from .the shaft.

4. In a street sweeping inachine, the coni.-l

' bination of a wheeled support or carriage, a

Ashaft mounted in bearings carried by said carriage and adapted to' be revolved as'tli'e latter is moved,a brush. comprising a plu-- rality of sections, each including 'a ring-like hub loosely 'surrounding the shaft whereby itmay be moved radially to a positionecceii- Vtric tothe shaft as it passes a depression in the surface being,` swept or meetsan obstruction, and-a flexible connection .betweenlthe shaft and eachof said brush sections for rotating the latter as the shaft is revolved.

5. In a street' sweeping machine,.the cornbinatioii of a wheeled support or carriage, a-

shaft mounted in bearings carried by said carriage and adapted to be revolved as the latter is moved, a brush comprising a pluf rality of sections, each including' a ring-like hub loosely-surrounding the shaft 'whereby it may be moved radially to a position eccentric to the-shaft as it'passesa depression in the surface being swept or meets an obstruction, and a band arranged within each of said hubs and having its ends connected to the hub and shaft respectively.

6. In a street sweeping machine, the. combination of a wheeled support or carriage, ashaft mounted in bearings carried by said carriage and adapted to be revolved as the latter is moved, a brush comprising a phirality of sections each Asurroundin the shaft and mounted to move transverse y thereof independently of the other' sections, means on the shaft for properly separating said sections, and connections -between each brush section :and the shaft whereby -the brush will rotate as the shaft is revolved.

7. in astreet sweeping machine, the conibinatioii of'a wheeled support or carriage, a.

-shaft mounted in bear-ings Icarried by said carriage and adapted to be revolved as the latter is moved, a"l`)rushv surrounding said shaft and comprising a plurality of sections, each adapted to automatically move lto a pol sition eccentric tothe shaft as it passes a depression in the surface over which the brush travels, and-means for transmitting rotary movement from the yshaft to each section of 'the brush.

8. ln a street'sweeping machine, the eonibinatioii of a wheeled support or carriage, a shaft mounted in bearings 4carried -byl said carriage and adaptedto be revolved as the latter is moved, a vbrush comprising a plniality of relatively narrow vsections arranged side by side. about the shaft and each connected with the shaft to be rotated thereby,

each of said brush sections being mounted to automatically move to a position eccen- 't-ric to theshaft as said section comes into `alinement with a depression in the surface being'. swept, and means vfor preventing' movement of the sections'longitudinally ot the shaft. y

9. ln a street sweeping machine, the combination .of a'wheeled support or carriage, a. shaft mounted in bearings' carried by ythe carriage and adapted to be revolved as the carriage is moved, a brushcomprising a plurality of relatively narrow .sections arranged 'side-by side about the shaft., each of said sections being adapted to automatically move to a position .eccentric to the shaft as said section comes into alinement with a depression in the surface over which the brush is moved, a series of plates separating said brush sections and preventing movement thereof longitudinal of theshaft, and means for transmitting rotary movement from the Ashaft to each of said brush sections.

In testimony whereof I affix my signature in presence of two witnesses.

' VINCENT'D CARROLL.

Witnesses:

JAMES LAvLizivn, CHAS. A. WHITMORE.