US1100808A - Street-sweeping machine. - Google Patents

Description

B. H. WILSON.

STREET SWEEPING MACHINE.

APPLICATION FILED APR.18, 1913.

Patented June 23,1914.

2 SHEETS-SHEET 1.

wi imawea B. H. WILSON.

STREET SWEEPING MACHINE.

APPLICATION FILED APR.18,1013.

1, 1 00,808. Patnted'June 23, 1914..

{ 2 SHEETS-$11331 2 I I Z son, a citizen of the United is my purpose to provide a street sweeping v Th n55 whom it may concern:

siren srarns razrnnrporricn.

BENJAMIN HARRISON WILSON, E WILMINGTON, DELAWARE.

creases,

Specification of Letters Patent.

Application filed April 18, 1913. Serial N 0; 762,111.

- ice it known that I, BENJAMIN H; WIL- States, residing 'Wilmington, in the county of Newcastle and State "of Delaware, have invented new and; useful Improvements in Street sweep- Machines, of which the following vis'a cification. is invention relates to improvements in it sweeping machines and has particuuur application to a machine of that type whereby the refuse is gathered up by the machine so that such refuse maybe carted away and dumped.

in carrying out the present invention, it

machine whereby dirt and-refuse on the surfaces of roadways will be swept up and thrown into a pan, the latter subsequently delivering the dirt-to an elevator so that the refuse ma be thrown into the body of the machine and carted away. I

it is also my purpose to provide a machine of-the class described by means ofwhich the dirt and refuseimay be removed from gutters and thrown intov the path of the road surface sweeper thereby enabling the gutter and road tobe cleaned simultaneonsly and by a single'machine.

Furthermore, I aim to provide a machine of thetype set forth which will embrace the desired features of simplicity, efficiency and durability; one which-may be'operated and maintained at a minimum expense and one wherein thecomponent parts will be so arranged and correlated as to prevent derangement.

With the above and other objects in view,

the invention 'consistsin the1 construction,

combination and, arrangement of parts here- I inafter set forth in andfalling within the scope ofthe claims. 1

In theaccompanying drawings; Figurel is a view in side elevation of .a street sweeping machine constructed in accordance with r p the present invention. Fig. 2 is a horizontal sectional view on the line 2-2 of Fig.1. Fig. i

3 is a fragmentary sideelevation of the side of the machine opposite from that shown in Fig-l. Fig. 4 is a rear view of the ma"- chine. 'Fig. 5 is .a similar view, parts being shown in section, andFig. 6 is a fragmentary sectional view through the dust. ollecting panand elevator showingthe relative arrangement thereof. i

Referrlng now to the accompanying drawings in detail, A designates. a wheeled vehicle composed of a box-like body 1 hav ing an open top and provided with a hinged ordrop bottom 2. This body 1 is mounted upon a rear axle 3 carrying ground wheels 4,4, and a forward steering axle equipped with pilot wheels 5} either horse drawn or sired. I Suitably fastened to the opposite sides of the box-like body 1, at the rear end of such body and extending rearn'arjdly thereof are arms-6, 6 having the free end portions thereofinclined downwardly as at 7 and equipped'with horizontally alining bearings receiving a horizontal shaft 8 adapted for rotation therein and carrying'a sweeper or brush 9 designed, when-rotated, tothrow the dirt and refuse on the surface of the roadway in. a forward direction. In the present instance, the driving mechanism for the horizontal shaft 8 comprises a gear wheel 10 keyed upon one extremity 'of the shaft and meshing with asimilar wheel 11 motor driven as derotat-able about a stub shaft 12 carried by one of the arms'6,'said gear wheel 11 having fast upon dn'e face thereof concentrically of the stub shaft 12 a sprocket wheel 13, while a similar wheel 14 is suitably connected with theh'ubcof one of the rear wheels l'ofthe vehicle,;and over these sprockets 13 and 14 istrained anendless chain 15 by.

means of which rotary movement is trans-' mitted to the the vehicle.

Depending from the horizontal portions of the arms 6, 6 and suitably fastened to such arms are bars 16 carrying at their lower brush in-the movement of extremities a stationary pan 17 contacting with the road surface and disposed in ad Vance .of the brush 9 so that as the latter rotates the dirt and refuse will be thrown into the'pan 17. Pivot-ally connected to the bars 16 and arranged within the pan 17 is a supplementalor auxiliary pan 18 having the front edge thereof equipped with forwardly extending lugs'19. v Suitably fastened-to therear end wall of the body 1 adjacent to the opposite edges of such wall and=spaced apart therefrom are Patented June 23, 1914.;

This vehicle may be 1 guide rods terminating at their upper extremities above the rear end wall of the body 1 in inwardly and downwardly extending lingers 21, the lower extremities of the guide rods terminating in proximity to the lugs 19 on. the pan 18. *Slidably mounted upon the guide rods 20, 20 are sleeves or collars 22 provided with depending arms 23 connected at their lower ends to an elevator bucket 2st. Extending upwardly from the side walls-of the box-like body l adjacent to the rear end wall thereof are bearing posts 25 equipped with, alining bearings re ceiving a shaft 26 u on the opposite ends of which are keyed spools 27, 27 each having connected thereto and trained there-about a cable or rope 28, the free extremities of the: cables or ropes 28 being connected to the rear longitudinal edge of the elevator bucket 2-l z'uljacent'to the opposite ends of such bucket as at 29, 29. The driving mechanism for the shaft .26 and the drums 27 is preferably automatic and in this embodimentelf my invention comprises a sprocket wheel 80 keyed upon one end of the shaft 26, a second sprocket wheel 3]. loosely mounted upon the rear axle of-thc vehicle, and an endless chain 32trained over such sprocket wheels 30 and 31. The sprocket wheel 31 is adapted for sliding movement upon the rear axle-of the vehicle and is providedat one-side with teeth 33 adapted to interlock with teeth 34 formed on the adjacent; wheel hub. A. vertically disposed rod is fulcrumed adjacent to its lower end upon a bracket 36 depending fromthe bottom of the body l and is arranged to one side of the path of movement of the elevator bucket 24 and has the upper and lower ends thereof curved inwardly as at 37 and disposed within such path, while a link rod 38 has one end pivotally connected to the rod 35 and the opposite extremity pivotally connected with the hub of the sprocket wheel 31. By means of this construction, it will be seen that when the elevator bucket 24: gravitates to lowered position andreaches the limit of its path of movement in a downward direction,

such bucket will contact with the lower inturned end of the rod 35 and thereby swing such rod about its fulcrum with the effect to slide the sprocket wheel 31 so as to interlock theteeth 33 on. the hub of such sprocketwheel with the teeth 34: on the hubot the vehicle wheel. Thus, as the vehicle moves forwardly in its path of travel, inotion will be imparted to the sprocket wheel 30,

- through the medium of theehain 32 with the efl'ect to rotate the shaft 26 and drum 27 thereby Winding up the cords or cables 28 so that the elevator bucket 2d is raised. When the bucket 24 reaches the limit of its upward movement, the end wall thereof engages upper intu rned end 37 of the rod 35 with the effect to slide the sprocket wheel '31 out of 1,1oo,eos

driving engagement with the respective vehicle wheel thereby relieving the shaft 26' and the drum 2? of the influence of the driving mechanism and'permitting the elevator bucket to gravitate to'lowercd positioin As the brush or sweeper 9 rotates, the refuse in the path ct such brush is thrown into the pans 17 and 1S and when the elevator bucket 2e reaches the lower extremity of its'path ofmovement, the forward edge of such bucket contacts with the lu s 1.9 on the pan 18 and so swings the latter-about its pivotal connections with the bars 16 thereby delivering the dirt and refuse within the Jan 18 to the bucket 2d. lii'in'iediately succeeding this operat on, the elevator bucket "manipulates therod 35 so as to place the sprocket whe .1l 31 in driving engagement with the adjacent vehicle wheel thereby enabling the elevator to be carried upwardly, the pan 18 to be restored to initial position and the contents of the elevator bucket deposited within the body 1 of the vehicle.

In order that gutters and the like may be cleaned simultaneously with the cleaning of the surface of the roadway, I employ a see 0nd sweeper composed, in the present in stance, of a number of brushes '39 carried by the outer ends of cross arms 40 secured to the lower end oi a vertical shaft :11 jourualc'd in vertically alining bearings 42 fastened to one side wall of the box-like body 1. Splined upon the shaft L1 between the bearings e -2. is a bevel pinion -13 with which meshes a bevel gear 4L1 fixed to a sprocket wheel journaled upon a' stub shaft carried by'the respective side wall of the body 1 and over this sprocket wheel carrying the gear 44, and the Sl Jl'OGliQt wheel fast to the hub oi: the rear wheel carrying the sprocket A wheel ii is trained an endless chain 45 whereby in the travel of the vehicle movementis imparted to the shaft 41 to rotate the brushes 39 about the axis of such shaft and so throw the dirt and refuse out of the gutter and into the path of the brush 9, as will be readily understood. The shaft all is preferably slidably mounted within the bearings 42, i2 and under the control of a system of levers so that the brushes 39 may be elevated and lowered at the will of-the :operator of the machine,

one preferred form ofmy invention by WaY ;1,1oo,sos 3 v of illustration, I desire to have it understood that I do not limit myself to the precise details of construction herein described vand delineated, as modification and varia tion may be made within the scope. of the claim without departing from the spirit of the invention. a

I claim: v a y In a street sweeping machine, a-wheeled vehicle, a pan carried by said vehicle in prfinimity to the ground and mounted for swinging movement, a sweeper adjacent said pan and rotatable about a horizontal axis,

meansjyfor rotating said sweeper whereby the refuse; will', be driven into said pan, an elevator bucket adapted for vertical sliding movement and designed to convey the refuse from said. pan into the body of the Vehicle, and adapted to tilt said pan whereby the refuse contained thereinwill be delivered to said bucket, a shaft, spools keyed to said shaft, connections between said spools and bucket, driving connections between one of the wheels of the vehicle andsaid shaft, a rod arranged atone side of the path of. movement of said bucket andpivoted between its ends for swinging movement and having the opposite ends thereof disposed in the path o'fmovement of the bucket whereby when the bucket reaches its limit of travel in one direction the rod will be swung to one posi' tion, while when the .bucket is' at the opposite end of its path of travel the rod will be swung in the opposite direction, and means operable from said'rod for rendering, the driving connections between said wheel and shaft active and inac tive.

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

BENJAMIN HARRISQN WILSON.

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