US797503A

US797503A - Wheeled scraper.

Info

Publication number: US797503A
Application number: US21793104A
Authority: US
Inventors: Michael Dunn
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-07-25
Filing date: 1904-07-25
Publication date: 1905-08-15
Anticipated expiration: 1922-08-15

Description

PATENTED AUG. 15, 1905.

M. DUN-N. WHEELBD SGRAPER.

APPLICATION FILED JULY 25, 1904.

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UNTTEE sTaTEs PATENT oEEToE. MICHAEL DUNN, OF MILTVA'UKEE, WVISCONSIN.

WHEELED SCRAPER.

Specification of Letters Patent.

Patented Aug. 15, 1905.

Application filed July 25, 1904:. Serial No. 217,931.

T at whom it Uta/y concern/.-

Be it known that I, MIOHAEL DUNN, a citizen of the United States, residing at Milwaukee,county of Milwaukee, and State of Viscousin, have invented new and useful Improvements in Wheeled Scrapers, of which the fol lowing is a specification.

My invention relates to improvements in wheeled scrapers.

The object of my invention is to provide a form of scraper which may be driven and manipulated by mechanical power under the manual control of the operator, who is enabled to .apply the power for driving the vehicle upon which the scraper is mounted and for lifting and dumping the scraper.

In the detailed description reference is had to the accompanying drawings, in which Figure 1 is a side view of my invention. Fig. 2 is a detail view of the means for releasing the scraper-supporting bars from raised position. Fig. 3 is a detail view, partly in section, showing one of the standards and the scraper-supporting bars in section and illustrating the relation of one of the spring-actuated catches and its releasing mechanism thereto. Fig. 1 is a detail front view of the driving and reversing gears of the vehicle. Fig. 5 1s a general plan view of my lnvention. Fig.

6 is a detail view of the front end portion of the vehicle in vertical section, showing the scraper-pan in dumping position.

Like parts are identified by the same reference characters throughout the several views.

The vehicle-frame 1 is mounted upon supporting-wheels 2 and 3 and is steered by means of a hand-wheel 4:, vertical rod 5, pinion 6, and gear'wheel 7, the latter being fast on the pivot-post 8, connected with the axle-bar 9 of the rear wheels 3. 12 is a motor for driving the vehicle, any suitable style of motor being employed. 13 is a fly-wheel connected with the motor, and 14: is a motor-shaft from which power is transmitted to the drive-shaft 15 by means of a pinion 16 and gear-wheels 17 and 18, the latter being fast upon the shaft 15.

A shifting clutch member 20 of ordinary type is mounted upon the shaft 15 and operated by means of a lever 21, whereby it may be shifted along the shaft either into engagement with the counterpart clutch member of the gear-Wheel 22 or the similar member of the gear-wheel 23. hen the clutch member 20 is shifted to engage and actuate gear-wheel 22, a forward motion is communicated to the vehicle through said gear wheel 22, gearwheels 25 and 26, chain 29, and sprocketwheel 30, the latter being connected with the front or traction drive-wheels 2.

hen it is desired to back the vehicle, the clutch member 20 is shifted to engage the gear wheel 23, whereupon motion will be transmitted, through said gear-wheel and a gear-wheel 31, to the shaft 27. This motion is in the opposite direction from that communicated through the gear-wheel 22. hen the clutch member 20 occupies the intermediate position, it is obvious that the shaft 15 may rotate without driving the vehicle in either direction,

wheels

22 and 23 being loose on said shaft.

A scraper-pan is supported by bars 36 in front of the vehicle. The bars 36 are pivotally connected at 37 with standards 38 and are also pivotally connected at 39 with the a front portion of the scraper-pan, as best shown in Fig. 1, the bars being provided with an elbowed portion at 10, adapted to permit the scraper-pan to be lowered, as indicated by dotted lines in Fig. 1.

To elevate the scraper-pan, the bars 36 are lifted by means of the cable a2 and branch cables 43, connected with the respective bars. Cable 42 is wound upon a winding-drum 4a, which is actuated from the shaft 15 through the medium of the shifting clutch member 15 and gear-wheels 46 and 17, the clutch member 4E5 being shifted by means of a lever 18.

The branch cables 13 are passed over suitable pulleys 419, connected with frame-standards 50, and the ends of the cables are connected with the bars 36 near the elbowed portion, so that when cable 42 is wound upon drum 4 1 the bars 36 will be lifted to elevate the scraperpan. the scraper-pan with the respective bars, thus preventing the scraper-pan from tilting downwardly at its rear end when elevated.

To dump the scraper, a cable 56 is connected with the scraper-pan at its rear end near the bottom. This cable is passed over a suitable pulley 57, supported from the standards and wound upon a winding-drum 58, which may be driven from the shaft 15 by means of a shifting clutch member 59 and gear-wheels 60 and 61. A lever 62 is used to operate the clutch member 59.

When the scraper-pan is lifted, it is desirable that it should be supported independently of the cables. I have therefore provided Chains 52 connect the rear corners ofspring-catches 65, which are connected with the auxiliary standards 66 and are adapted to spring inwardly to a position of support underneath the bars 36 when the latter are in raised position. These catches may be manually released by means of a cable 68, branch cables 69, elbowed levers 70, and links 71. The latter connect one arm of each elbowed lever 70 with the corresponding catch 65. The rear end of the cable 68 is connected with the frame-standards 38 at 72 or at any other convenient point where it can be readily reached by the operator. A latch 75 is arranged to cooperate with the catches 65 in supporting the scraper-pan in raised position. This latch is mounted in a suitable guide 76 and is actuated by means of a spring 77, which automatically pushes it forwardly in position to engage in notches 78, formed in the rear wall of the scraper-pan. The front end of the latch 75 is beveled, so that it will be pushed backwardly during the upward movement of the pan 35. The notches 78 are formed to facilitate the retraction of the latch during this movement. The latch, however, is pressed forwardly into each notch of the spring 77, so that it will engage and support the pan at any point of elevation. When it is desired to lower the pan, the latch may be manually retracted by means of a cable 79.

The scraper is provided with a draft-yoke 80, adapted to facilitate the attachment of horses, if desired. The pan is also provided with prongs 81, adapted to loosen up the soil in advance of the pan.

In operation the vehicle is propelled forwardly, as above explained, by shifting clutch member 20 into engagement with gear-wheel 22. The scraper-pan is lowered at the desired point by pulling upon the cable 68 to retract the spring-catches 65 from their supporting position underneath the bars 36, the latch 75 being also retracted, thus permitting the pan 35 to drop by gravity to the position in which it is shown by dotted lines in Fig. 1. When the pan is filled, the clutch member 45 is shifted to engage gear-wheel 46, whereupon the winding-drum 4A is actuated, winding up cable 42 and lifting the pan until the spring-catches 65 engage underneath the bars 36, whereupon the clutch member 45 is moved to position of release. When it is desired to dump the pan, the clutch member 59 is shifted to engage the gear-wheel 60, whereupon power is applied to actuate the windingdrum 58 to wind up the cable 56. This movement lifts the rear end of the pan and causes it to tilt upon the pivot-studs 39 until it swings to the position in which it is shown by dotted lines in Fig. 4, when the contents of the pan will be dumped. The clutch member 20 may then be shifted to engage gear-wheel 23, whereupon the vehicle will move in the opposite direction and return to the startingpoint.

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

1. In a machine of the described class, the combination of a vehicle provided with a motor; a pair of bars pivotally connected with said vehicle and projecting forwardly there from; a scraper-pan pivotally connected with the bars in front of its center of gravity and flexibly connected with supporting-bars in the rear of its center of gravity; a winding-drum and means for driving the same from the motor; a cable operatively connecting said drum and scraper-bars; and motor-operated connec tions for tilting the scraper.

2. In a machine of the described class, the combination of a vehicle provided with a motor; a pair of bars pivotally connected with said vehicle and projecting forwardly there-. from; a scraper-pan pivotally connected with said bars; a winding-drum and. means for driving the same from the motor; a cable operatively connecting said drum and scraper-bars;

and motor-operated connections for tilting the scraper; together with a set of spring-actuated catches adapted to engage the scraper-supporting bars when in raised position; and manually-controlled means for releasing said catches.

3. In a machine of the described class, the

. combination of a vehicle provided with a motor; a pair of bars pivotally connected with said vehicle and projecting forwardly therefrom; a scraper-pan pivotally connected with said bars in the front of its center of gravity; a winding-drum and means for driving the same from the motor; a cable operatively connecting said drum and scraper-bars; and motor-operated connections for tilting the scraper, said scraper-pan being flexibly connected with the supporting-bars in the rear of the pivotal connections of said pan.

4:. In a machine of the described class, the combination of a vehicle provided with a motor; a driving-shaft pivotally connected with the motor; connections for driving the vehicle in opposite directions; supporting-bars pivotally connected with the vehicle and having upwardly-projecting end portions; a scraperpan pivotally connected with said upwardlyprojecting end portions; and flexible supporting connections between said bars and the rear portion of said pan.

5. In a machine of the described class the combination with a vehicle, of a set of liftingbars pivotally connected therewith; a scraperpan pivotally connected. with the lifting-bars; guide standards mounted on the vehicleframe, and arranged to loosely engage an intermediate portion of thelifting-bars; springactuated catches adapted to engage and support said lifting-bars from the guide-stand ards when said bars are in raised position; and motor-driven mechanism for lifting said bars to raised position.

6. In a machine of the described class the combination with a vehicle; of a set of liftingbars pivotally connected therewith; asoraperpan pivotally connected With the lifting-bars; guide standards mounted on the vehicleframe, and arranged to loosely engage an intermediate portion of the lifting-bars; springactuated catches adapted to engage and support said lifting-bars from the guide-standards When said bars are in raised position; and

' motor-driven mechanism for lifting said bars to raised position; together With a manuallycontrolled actuated latch adapted to engage the rear end of the scraper-pan; said pan being provided with projections adapted to be engaged by said latch.

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

MlCl-IAEL DUNN. Witnesses:

JAs. B. ERWIN, LEVERETT C. XVI-IEELER.