US911696A - Street-sweeping machine. - Google Patents

Description

Patented Fem, 1909.

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gvwentoz flttroznu J. BANSER. STREET SWEEPING MACHINE.

APPLIUATION AFILED JULY 22, 1908.

Patented Feb. 9, 1909.

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STREET SWEBPING MACHINE. lfIfI-.IGATION FILED JULY 22,`1908.

`91 1,4696.l y Patented Feb.9, 1909.

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STREET-summinc MACHINE. y

No;l 911,696. Y

Y speeineation @Letters raient.

" ratentedvreb. 9, 1909.

i Applicationf1ednJulyn22, 1908. ySerial110.444,801. i

To all whom it may concern: A

Be it known that I, JOHN BANSER, citizen 0f the United States, residing atv Cedar Lake, in thecounty of Lake-andState of Indiana, have invented certain new'and useful Improvements in :Street-Sweeping Machines, of whichvthe'following is a specifica# tion. y

This invention relates' to machines for sweeping streets, and especially to that class thereof which sweep'the dirt into awagon body or box by means of which'the same may be carried away and dumped in any de-V lsired place. w 1 f The invention is characterized particularly by improvements with respect 'to the means for sweeping and elevating the dirt, and with respect to the means for raising and lowering the brushes and associated parts and for driving the same.

The invention is illustrated in the accompanying drawings in which- Figure 1 is a top plan view of the machine; Fig. 2 is aside elevation; Fig. 3 is a longitudinal section; Fig. 4 is a cross section on the line 4 -4 of Fig. 1.

Referring specifically tothe drawings, the

frame of the machine or vehicle consists of a pair of closed sides 6 with a box vat the rear formed by a bottom 7 inclined downwardly and rearwardly. At the back is a door 8 which may be opened to allow the matter collected to be dumped from the box. The frame is mounted upon rear wheels 9 and front wheels 10, and is provided with the usual draft devices. ,Directly behind the front wheels is a pair of rotary brushes 11 and 12, which revolve toward each other, or

in the direction shown vby the arrows, that is, the front brush sweeps backwardly and the rear brush sweeps forwardly and thev dirt is collected or lifted. between the tw'o and thrown up and back onto an Vendless apron 13 which'elevates the dirt into the box or hopper above referred to. VThe apron extends at an inclination upwardly and backwardly from the rearl brush. The' shaftsA of the brushes are supported at their .ends

in boxings at the lower edge of castings orv frames 14, of which there is `one at each side. Each 4casting or frame has a standard 15 extending upwardly therefrom and slid-V ing in a guide formed in the side frame 6 of the machine. At the upper end the stand- Y ards are connectedrto levers 16,by meansk of which they may be raised and lowered,

vertically adjustable frames 14.

The power is supplied from the rear wheels of the machine. The axle 2O of said wheels has a spur gear 21l thereon which meshes with a spur gear 22 the stub shaft 23 of which has a sprocket 24 thereon. A chain 25 passes around the sprocket and around a sprocket 26 onthe shaft of the lower roller 17 of the apron andalso around a sprocket 27 on the shaft of the rear brush 12 as well as -a sprocket 23 on a stub shaft 29 which carries afgear 3() meshing with a gear 31 on the shaft of the front brush 11. The chain also passes over idler pulley 32 mounted upon a sliding boxing 33 which is set in guides in the side frame of the machine and which is movable up and down vby means of a rodV 34, to tighten or loosen the belt. A spring 35 is coiled around the rod,` acting normally to hold the belt tight. The stub axle 23 which carries the driving sprocket 24 is also mounted in a sliding lboxing 36 which is movable up and down Vin a guide recess in the .side frame of the machine, being normally pressed down by spring 37 which holds the gears 21 and 22 in mesh. A rod 38 is connected to the boxing 36 and extends upwardly beside the frame and is connected at the top to a lever l39 which is fulcrumed at 40. This lever is connected by a rod `41 to a hand lever 42 at the front of the machine, adjacent the seat- 43 of. the driver.- By manipulation of the lever, the boxing 36 may be raised or lowered, and the gears 21 and 22 engaged or disengaged, thereby starting or stopping `the operation of the machine.

When the device is not in use, the driving gears 21 and 22 are disengaged, as stated, "and the sideframes or castings 14 are lifted to remove the brushes from the ground. To operate the machine for the intended purpose, the driving gears 21 and 22 are engaged, which drives the belt and so operatesV the brushes and the apron.' The supporting frames 14 are then lowered by means 0f the lever 16, bringing the brushes in contact with the ground, and then'as the machine` is hauled along, the dirt is swept up bietween the rapidly revolving brushesv lland` forni shown; but Various inodilieations niay be made: within y.the scope thereof, as indicated in the followingclaims..A

IClaiin:

l; ln' aI street sweeper, the combination off a wagoirfrarne-with afboX atI Oneend thereof, a pair oit" rotary brushes extending across atltheother endfofathe frame', means to ldrive said brush'es in aopposite directions,

."where'by thefdirtf will belifted` or' thrown up Lbetween them, anv inclined shield fixed between the sidesV of the` franie above the brushes -andextendlng at an'inelinatlon upbox at the rear end, rotary brushes at the front end thereof, a eonveyer extending from saidbrushes to the wagon box, Vertieally adjustable frames supporting said brushes and the front end or the eonveyer, and ineans to drive said brushes and the Conveyor, including a. Vgear wheel on the rear axle ot the wagon, a stub sha'lt slidably mounted on the side et the wagon and having@v thereon a` gear wheel movable into and outA of engagement with the said gear wheel, and belt and sprocket gearing between-the stub shaft and the brushes and eonveyer;

In testimony7 whereof, I alliK my signature in presence of two witnesses.

JOHN BNSER.

llitnesses z THURMAN S. llonixsox,

S. C. Dwfnu.

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