US813544A - Street-sweeper. - Google Patents

Description

No. 813,544. PATENTED FEB. 27, 1906.

G. M. EAVES, J. WJSLAVEN & G. W. WADE.

STREET SWEEPER.

APPLICATION FILED MAY 20, 1904.

3 SHEETS-SHEET 1.

No. 813,544. PATENTED FEB. 27, 1906. G. M. EAVES, J. W. SLAVEN & G. W. WADE.

STREET SWEEPER. APPLICATION FILED MAY 20, 1904.

3 SHEETS-SHEET Z.

Illlllllllllllllllllllt No. 818,544. PATENTED' FEB. 27, 1906. 0. M. EAVES, J. W. SLAVEN & G. w. WADE.

STREET SWEEPER.

APPLICATION FILED MAY 20, 1904.

3 SHEETS-SHEET 3.

UNITED sTATEs PATENT oEEIcE.

CHARLES M. EAVES, JOHN W. SLAVEN, AND GEORGE WV. WADE, OF GALESBURG, ILLINOIS.

STREET-SWEEPER.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed May 20, 1904. Serial No. 208,968.

To all whom it may concern:

Be it known that we, CHARLEs M. EAvEs,

'JoHN W. SLAVEN, and GEORGE.W. WADE,

cart or wagon in advance of the sweeping mechanism as the device proceeds.

We are cognizant of the existence of Patent No. 746,229, granted to A. S. Young, December 8, 1903, and herein disclaim any of the specific inventions disclosed by said patent.

Our invention consists in novel structural features and combinations of parts, the operation of which parts separately and in combination will be found hereinafter described and the novel combinations of which parts are specified in the claims of this specification.

Mechanism showing the arrangement, connection, and mutual relationship of the parts forming the subject-matter of our improvements is illustrated in the accompanying drawings, in which- I Figure 1 is an elevation of one side of a sweeper and parts of awagon, and Fig. 2 is an elevation of the opposite side thereof, both embodying our invention. Fig. 3 is a perspective of the rear frame and parts connected thereto. Fig. 4 is a transverse section in the line 4 4 in Fig. 1. Fig. 5 is a side elevation. Fig. 6 is a sectional View.

Referring again'to the drawings, in which like letters or numerals refer to like parts in the several figures thereof, 1 represents part of a wagon box or body, and 2 the rear supportingwheels thereof, to the spokes 4 of one of which is secured a master-wheel 3 for actuating the sweeping and elevating devices. On the sides and at the upper edges of the wagon-body we have provided keepers 5 for purposes hereinafter described. These keepers are preferably of sheet metal .bent into inverted-U-shaped form and bolted. All the rest of the parts of the wagon may be of any ordinary type of dust-tight dump-wagon and need not be further described herein. For the purposes of this specification we shall hereinafter term the foregoing parts (1, 2, 3,

4, and 5) the forward section.

, The frame of the rear section, (shown fully at Fig. 3,) which frame is inclosed by a casing and which carries or supports all the operative parts of the elevator and sweeper, is preferably of angle iron or steel; but we have shown it as of strap metal, and it is constructed as follows: Beginning at the point X, Fig. 3, one of a pair of bars 6 6 is extended forwardly to a point Y, where it is bent backwardly upon itself. It is then extended backw ardly and rearwardly, thence upwardly at an angle of about twenty-five degrees, thence downwardly at about the same angle to the juncture of the drum and chute, (hereinafter described,) thence upwardly and rear wardly, and thence downwardly to its rear end 7, where it is bolted or otherwise fixed to one of a pair of bars or rods 8 8, which extend forwardly to the point 9, is thence bent at an angle corresponding to the parallel bend of the bar 6, thence upwardly to its point of meeting with the bar 6, to which it is secured. The bars 8 8 are curved or bent at points shown to form parts of journalboxes, hereinafter described. 10 10 are trusses; 11 11 and 12 12, braces or stiffeningrods. 13 is a brace rod or plate. 1.4 14 are diagonal rods or braces. 15 15 are rods secured to the upper and lower frame-bars 6 6 and 8 8, respectively, by bolts or rivets.

Fixed to the bars 8 8.are hangers 1'8 18, which are bent to form journal-boxes 19 19. 20 20 are rods secured in any preferred manner at their upper parts to the rods 6 6 and at their lower parts to the rods 8 8, as shown. 21 21 are bars secured to the bars 6 6 and 8 8 in a similar manner, but their ends extending in opposite directions from the ends of the bars 20 20. The bars 20 20 and 21 21 are secured to each other, and at their submedian portions are bent to form journal-boxes 22 22 for a purpose hereinafter described. 23 is a metal plate connecting rear parts of the bars 6 6. 24 24 are eyes secured to the under sides of the bars 8 S. For the purposes of this specification we shall hereinafter designate the foregoing described parts as the rear frame or frame A.

In mesh with the master-wheel 3 is a pinion 25 on one end of a shaft 26, journaled in suitable bearings 19 in the frame A. On the distal end of the shaft 26 is a sprocket-wheel 27. Above and in mesh with the pinion is a spur-wheel 31 on one end. of a shaft 32, j ournaled in suitable bearings 17 in the frame A. On the distal end of the shaft 32 is a sprocket-Wheel 18. J ournaled in bearings 16 in the standards B of the frame A is a shaft 30, having a roller 34 fixed thereon. On the distal end of the shaft is a sprocketwheel 29, geared by a sprocket-chain 35 to the sprocket-wheel 18. Journaled in suitable bearings 22 in the inclined standards C v of the frame A is a shaft 36, having fixed thereon a roller 37. v

The main portions of the frame are inclosed within a dust-proof casing D, having a forwardly and upwardly inclined and extended part or chute E and an enlarged rear part or drum F, as shown best at Figs. 1, 2, and 5. The casing may be of any desired material,- but we prefer that the bottom of the inclined portion E be of boards or other smooth material, so that an endless conveyer 38, having pans or blades 59, which conveyer passes around the rollers 34 and 37, will not become accidentally engaged by nor entangled with the frame A.

Exterior to the sides of the drum F and depending from the cross-bar 23 are hangers 39, which pass downwardly through guidebrackets 40, secured to the sides of the drum F, and at their lower ends 41* are enlarged to form bearings for the reception of a shaft 41, which carries a broom 42. The upper portions 39 of the hangers 39 are threaded and have nuts 23 turned onto them and bear upon the topside of the plate 23, through which said threaded portions of the hangers pass, so that by turning the nuts in one direction or the other the broom-shaft may be raised or lowered, as desired. Any other wellknown means for raising and lowering the broom may be used, if desired.

To support the rear end of the frame A and the casing D we have provided caster-wheels 43, secured to the bars 6 of the frame by rods 44 and braces 45. The wheels 43 are carried by forked stocks 46 the upper parts of which rotate on their axes in bearings in the rear ends of the hangers 44 and braces 45.

In sweepers of the type to which this invention relates it is desirable to use but one rear section with several forward sections and to save time in connecting and disconnecting them. To effect this object and for the purpose of connecting the sections rigidly together, we have provided draw-bars or connecting-rods 46 46, which are secured by hooks 47 at their rear ends to eyebolts 24 in the frame-bars 8, Fig. 3, and at their forward ends by hooks 48 to eyebolts 49 in the rear axle 50 of the receiving-wagon. To further effect this object, we have provided legs 51 51 for supporting the forward end of the rear section when it is disconnected from the forward section, which legs are hinged at their upper portions 52 52 to the frame-bars 8 8 and supported at their free ends when not in use by hooks 53 53. The legs are secured to each other and made rigid by crossbraces 54 54 and diagonal braces 55 55.

When it is desired to begin sweeping, the forward and rear sections are connected, as shown at Figs. 1 and 2,with the forward ends of the bars 6 of the frame A resting securely in the housings 5 and on the upper edges of the sides of the wagon-body 1 and the hooks 48 on the connecting-rods 46 engaged with the eyebolts 49. The draft-animals being then attached to the guide-pole, the machine is drawn forwardly and the operation of sweeping proceeded with in an evident manner. When the receiving-wagon is filled, the dirt having been swept up by the broom 42, deposited on the conveyer 38, elevated thereby and deposited in the wagon-box, the supporting-legs 51 are let fall to the position shown by full lines at Fig. 3, the hooks 48 are withdrawn from the eyes 49, and the wagon drawn away for the purpose of unloading or dumping. It will readily be seen that the legs 51 will then support the part E of the rear section in a normally upright position, ready for engagement with an empty wagon, which may be backed up into place and engaged with the rear section, as hereinbefore described. The legs 51 being then raised to the position shown by full lines at Figs. 1 and 2, the operation of sweeping, may be recommenced. In operation the draft-animal s are attached to the pole of the receiving-wagon and the forward and rear sections connected as hereinbefore described, with the open forward end of the casing or chute resting over a corresponding opening in the top of the Wagon -box, which is elsewhere dust-tight and which is preferably a dumping-box. The master-wheel fixed to one of the rear wheels of the wagon will be rotated thereby in the same direction, and its rotation will be transmitted to the pinion 25, and thereby to the sprocket-wheel 27 on the shaft 26, but in a reversed direction. A sprocket-chain 56 passes around the wheel 27 and also around a sprocket-wheel 57 on the distal end of the broom-shaft 41. With this arrangement the rotation of the wheel 27 will be transmitted to the wheel 57 and to the broom-shaft 41 and broom 42 and in the same direction, or, in other words, the broom will be caused to revolve in a direction opposite to that of the ground-wheel of the wagon. The pinion 25, being meshed with the spur-wheel 31, will transmit movement thereto, but in an opposite direction. The wheel 31, being fixed on the shaft 32, will transmit the same motion to the s rocket-wheel on the distal end thereof, and said wheel being. geared by the sprocket-chain 35 to the sprocket-wheel 29 on the roller-shaft 30 will transmit its motion IIO thereto and in the same direction. per portion of the endless conveyer 38, passing over the friction-roller 34 on said shaft and the lower portion thereof passing around the roller 37, it will be revolved in the direction of the arrows by its frictional contact with the roller 34. That part of the broom which is in contact with the surface being swept revolving forwardly throws the dust and dirt ahead of it and onto the pans 59 on the endless carrier 38 and carries it upwardly to and over the roller 34, where it is deposited in the receiving-wagon The carrier-belt being entirely within the casing, no dust can dribble or escape therefrom to cause annoyance to persons or damage to property. No gear or operating part being within the wagon-box, clogging by reason of dust collecting thereon cannot result. A door (not shown) is provided to close the opening in the top of the box when the wagon is disconnected from the rear section.

Shifting boxes may, if preferred, be used for the shaft 36, so that as the broom wears off in use said shaft may be adjusted rearward into proper relation to the broom.

The frame, the casing, and all the operating parts being supported at their forward parts by the wagon, which preferably is constructed without a reach, and the rear portions supported by the caster-wheels, great facility and ease of operation is attained, and the construction permits of turning the device in a space not greater in diameter than its own length.

The advantages of the operation will be apparent, and the operation will be understood from the foregoing description, it being particularly noted that various changes may be made in the details of construction without departing mater ally from the general idea involved.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a mechanism of the class described, a framework consisting of forwardly-extended bars connected by a cross-piece, rearwardlyextended bars connected by a cross-plate, lower standards connecting the upper and The uplower bars of the framework, bearings in said standards for the reception of a shaft, upper standards connecting the upper and lower bars of the framework, bearings in said standards for the reception of a shaft, bearings at the rear parts of the forwardly-extended bars of the framework,for the reception of a shaft, and hangers depending from the lower bars of the framework and having bearings for the reception of another shaft, substantially as described.-

2. A street-sweeper rear section comprising the casing D, the frame A having the standards B, the journal-boxes 16 therein, the journal-boxes 17, 19 fixed to the frame, the standards C, the journal-boxes 22 therein, the cross-plate 23, the adjustable hangers 39 depending therefrom, said hangers having their lower ends enlarged to form shaft-bearings, being contained within said casing, the caster-wheels 43 and means for attaching them to the rear portion of the casing.

3. In a street-sweeper and in combination with a wheel-supported forward section or dirt-receiver having a master-wheel fixed to one of the ground-wheels thereof, a rear section comprising a frame having journalboxes 16, 17 at the forward portion thereof, journal-boxes 22 at the rear portion and journal-boxes 19 intermediate said boxes, the shaft 30 seated in the boxes 16 and carrying wheel 29, the shaft 32 seated in the boxes 17 and carrying wheels 18, 31, the sprocketchain embracing said wheels, the shaft 26 seated in the boxes 19 and carrying Wheels 25, 27, the shaft 36 seated in the bearings 22, the endless belt 38 on the shafts 30 and 36, the cross-bar 23, the adjustable hangers 39 carrying a broom shaft 41, the sprocketwheel 57 onsaid last named shaft, the sprocket-chain 56 embracing the wheels 27 and 57, the wheel 25 meshed with the masterwheel, and caster-wheels secured to the rear portion of the frame.

CHARLES M. EAVES.

JOHN W. SLAVEN.

GEORGE W. WVADE. Witnesses:

O. M. S. RICHARDS, L. M. RICHARDS.

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