US1328521A - Road-sweeping machine - Google Patents

Description

J. W. JEMMISON.

ROAD SWEEPING MACHINE.

APPLICATION nuzu JUNE 10. 1919.

1,328,521 Patented Jan. 20,1920.

JOHN WILLIAM JEMMISON, 0F HUDDERSFIELD, ENGLAND, ASSIGNGB TO CLAYTQN &

COMPANY (HUDDERSFIELD) LIMITED, OF HUDDERSEIELD, ENGLAND, A COEPORIL- TION OF GREAT BRITAIN.

ROAD-SW'EEPIIIG MACHINE.

Application field June 10, 1919.

To all whom it may concern:

Be it known that 1, JOHN WILLIAM JEM- MISON, a subject of King George V of Great Britain, residing at Huddersfield, in the county of York, England, have invented a new and useful Improvement in Road- Sweeping Machines, of which the following is a specification.

This invention has reference to road sweeping machines of the type having a cylindrical brush or conveyer rotating within an inclosing casing and adapted to deposit in a receiving receptacle on the machine the dust or refuse swept into said casing by the contact of the revolving brush with the ground, and more particularly to road sweepin machines in which the brush in the casing is located clear of the ground and a second or external revolving brush travels over the road surface and sweeps the dust and refuse into the casing around which it is carried by the revolving brush and deposited therebv into the receiving receptacle, and the object of my invention is to provide an improved arrangement and combination of a plurality of revolving brushes or conveyors in respective chambers or casings into one of which said casings or chambers the dirt or refuse is first delivered by a brush traveling over the road surface or by the revolving brush in the first chamber and conveyed by the said brush or conveyer to a second casing and its revolving brush or conveyer which deposits it in the receiving receptacle except in cases wherein more than two rotary brushes or conveyers are employed in which the last revolving brush or conveyer effects the deposit in the receiving receptacle whereby I am enabled to locate the receiving receptacle intermediate of the front and rear axles of the machine or wagon so that the weight, when loaded, will be equally distributed on the machine, thus avoiding the overhang of the receiving receptacle beyond the rear axle which is an objectionable feature in machines of the type referred to.

The object and nature of the invention thus set forth will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims.

Figure 1 is a longitudinal elevation, partly in section, of so much of a road sweeping Specification of Letters Patent.

Patented Jan. 20, 1920.

Serial No. 303,039.

machine as is essential to show the application of my improvements thereto;

Fig. 2 is a sectional plan taken on line A, B of Fig. 1 and Fig. 3 is a transverse section of the dust receiving receptacle taken on line C, D of Fig. 2.

Referring to the drawings, a represents the chassis of an ordinary motor vehicle constructed for use as a road sweeping machine, b, c the respective front and rear road axles having the road wheels (Z, c mounted thereon, and f is a small road sweeping brush mounted in suitable bearings at the rear of the machine and suitably driven from the rear road wheel as by chain and sprocket wheels 9.

The brush f as it travels over the road surface brushes and forces the dust or refuse up an inclined guide plate 72. and through an opening 2' into a chamber j within which operates a rotary brush or co veyer is mounted on the rear road axle o, the bristles of the brush wiping over or just clearing the interior walls of the chamber. The rotary brush or conveyor 70 is keyed fast on the rear axle c and is driven from one or both of the road wheels 0, which are loosel mounted on said axle, by means of epicyclic gearing Z.

The parts so far described are somewhat as previously proposed in the type of machine referred to with the exception that in this instance the revolving brush 7c is preferably of reduced diameter.

My invention consists in employing in connection with the revolving brush 76, an additional revolving brush m located appropriately above the brush is and operating within a chamber 72 in similar manner to the revolving brush is, the said brush at being driven by chain and sprocket wheels 0 fr in one or both of the road wheels 6 so that it is revolved in a contrary direction to the direction of rotation of the brush 7c.

The chambers 7' and n are formed by thin sheet metal walls j n and in a suitable part of the inclosing walls between the two revolving brushes is an opening or gap 29 through which the dust or refuse, carried upwardly by the brush or conveyor 7c, will be thrown at a tangent into the chamber at.

More than two, as for instance, four revolving brushes in respective casings could be employed if desired but as this would add considerably to the height of the machine and unnecessarily complicate it, I consider that two revolving brushes or conveyers 7a and m arranged somewhat as shown and de scribed will fully serve to effect the object of my invention.

In the wall a of the upper part of chamber 77. and on the side thereof toward which the upper nalf of the brush m revolves there is provided an opening or gap r which gives admission to a receiving tank or vessel carried on the chassis a or suitably secured thereto, in a position intermediate the front and rear road axles b, 0.

111 this instance, the rece'ver s is provided with a central division Z' 3) which curves to each side at its lower end to assist the discharge of the dust or re use collected therein. In each side of the receiver the lower end thereof is a hinged door a which is normally secured in closed position.

il hen released and opened, the refuse in the two halves of the receiver will gravitate through the openings and may be collected in any suitable receptacle.

"it will be obvious that many methods of discharging the refuse from the receiver may be adopteth as for instance, the receiver could be provided with small pulleys adapted to run on cross rails on the chassis a so that it cor d be wheeled off the chassis to any duin place; or the said receiver could be pivoted on the chassis to enable it to be overturned to discharge its contents; or it could be provided with means whereby with suitable lifting tackle it could be lifted oodily off the chassis. In action the dust or refuse swept into the chamber by the road brush 7 is carried upward through saidchamber by the revolving brush 7:: and by centrifugal action is thrown thereby through the gap 2) into the second chamber 72 through which it is conveyed upwardly by the second revolving brush on and thrown thereby through the opening or gap 1" into the re ceiver s, the brushes in and m revolving in the directions indicated by the arrows o, o and the refuse passing through the gaps p and 1* as indicated by the arrows 205 to.

By the combined arrangement of a plurality of revolving brushes or conveyers op erating successively in respective inclosing casings or chambers with a means of c0mmunication between the chambers, the point of delivery of the dust or refuse into the receiving tank is located at a higher level from the ground and consequently the re ceiving receptacle can be made much higher and therefore of reduced length without affecting its carrying capacity.

i 1,s2s,521

The arrangement also has the important advantage that the tank or receiver 3 can be located on the sweeping machine wholly bet-ween the front and rear axles so that the weight is equally distributed and overhang beyond the rear axle thus avoided.

The revolving brushes or conveyors may be of any appropriate construction and the road bruslff be carried by pivoted arms so that it can be raised from th road surface wh in use, somewhat as ordinarily.

hough I prefer to employ the combined arrangement of revolving brushes or conveyors in separate chambers in conjunction with the Xtllltll road sweeping brush will be understood that the revolving h 7.: may be anged to have contact the road surface to form the road iinp; brush and the brush 7'' be omitted.

aving thus cescribed my invention.

what claim as new and desire to secure by Letters Patent is 1. in a road sweeping machine, a receptacle for the sweepings, communicating brush chambers arranged one above another the top chamber having an outlet into the said 1'eecptade brushes arranged in the said chambers, and means for revolving one lnxush in one direction and the other brush.

road sweeping machine, a recephe sweepings, communicating tacie for v brush chambers arranged one above another,

the top chamber having an outlet into the 'eptacle and the bottom chamber havi in at its rear and lower part, blUF e arranged in the said chambers road bru. to drive the dust into 1h arranged the inlet Ol tle bottom chamber and means for revolving all the said brushes the brush of the top chamber sing revolved in the reverse direction from the brush next below it.

3. l he general arrangement, construction and con'ibination of road sweeping machines in which a plurality of revolving brushes, in respective intercommunicating chambers convey the dust or refuse collected from the road surface, upwardly and deliver same into a dust re eiving tank or vessel supported on the machine intermediate of the front and rear road axles, substantially as herein shown and described.

in testimony whereof l affix m signature in the presence of two witnesses.

JOiilhl 'WlLLilAh f JEli lliilSOll.

Vfitnesscs REGINALD Frrznor Cnarrort, THOMAS HENRY BARROW.

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