US1735412A

US1735412A - Dirt-handling machine

Info

Publication number: US1735412A
Application number: US328242A
Authority: US
Inventors: Harold M Pursel
Original assignee: SHARROCK AND PURSEL
Current assignee: SHARROCK AND PURSEL
Priority date: 1928-12-24
Filing date: 1928-12-24
Publication date: 1929-11-12
Anticipated expiration: 1946-11-12

Description

Nov. 12, 1929.

' Filed Dec. 8

H. M. PURSEL DIRT HANDLING MACHINE 5 Sheets-Sheet l gwuentoz dttozmq NOV. 12, 1929. I H, PURSEL 1,735,412

DIRT HANDLING MACHINE Filed Dec. 24. 1928 s sheets-s eet 2 12, 1929- H. M. PURSEL DIRT HANDLING MACHINE Filed Dec. 24. 1928 s Sheets-Sheet- (1W new Patented Nov. 12, 1929 UNITEDTSTATES PATENT 1 OFFICE HAROLD M. PoRsEL, or GASPIEIQWYOMING, ASSIGNOR TO SHARBOCK AND PURSEL, or CASPER, WYOMING, A COPARTNERSHIP CONSISTING or w. e. srmanoox AND HAROLD 'M. run-SE1.

DIRT-HANDLING MACHINE Application filed December 24, .1928. Serial 'No. 328,242.

This invention relates to improvements in power scrapers of the type employed in the construction of highways and in other places shall be of rugged and substantial construction., 7

This invention can be most readily described and understood whenreference 18 had to the accompany ng drawings in which the preferred embodiment thereof has been illustrated and in which: I

Fig. 1 is atop plan view of the improved scraper; I I I Fig. 2 is a section taken on line 2-2, Fig. 1, and shows the manner of securing the rear end of the frame members tothe axle housing of the tractor;

Fig. is a section taken on line 3-3, Fig.

1, and shows the construction of the Windlass used for controlling the scraper; p

Fig. 4 is a side elevation of the device shown inFig. 1; I I I I y 1 Fig. 5 is a section taken on line 55, Fig. 6, and showsthe scraper in dumping position; I

I Fig. (3 is a section taken on line 6- 6, Fig. 4; 1

Fig. 7 is a section taken on line 7-7, Fig. 6, and shows the means for operating the clutch and L I Fig. 8 is a section taken on line 88,Fig. 7.

The power plant employed in connection with this machine consists of a well known type of tractor having spaced traction wheels 11 which are secured to the outer ends ofthe axle housing 12. The engine has beenrepreessary for the purpose of properly describing the construction of the apparatus to which this application relates.

. Two

frame members

17 and 17 a which are duplicates with the exception that one is a right and the other is a left, are usually formed from'channel beams and have their rear ends secured to the axle housing 12 by means of U-bolts 18 that extend about the axle housing andthrough the flanges in the manner shown in Fig. 2. These bolts are provided with nuts 19 by meansof which they aretightened. The

side beams

17 and 17 have a straight portion extending from the I axlehonsing to the point marked B where they are bent and have another straight portion extending to point C. From point C to point 1), they are curved and from point D they are substantially straight. The shape of the beams has been shown in Fig. 4, fromwhich it will be seen that they are upwardly arched. Although the straight and curved portions described above are desirable, it is, of course, evident thatthe beams may be bent or curved in specifically different ways, and still produce the desired effect. Secured to and between the front ends of 17 and 17 is a hollow'casting 20. Extending downwardly from the underside of casting 20 are two spaced lugs 21 between which the front axle 22 is located and to which it is pivotally secured by means of a pin 23. Front Wheels 24 are secured to spindles 25 that are pivoted to the outer ends of the axle 22 in the usual manner. Each spindle is provided with a rearwardly extending arm 26 whose ends are connected by a rod 27 which interconnects the wheels so that they will rotate simultaneously in the same manner, all in the manner usual and well known in automobile construction. The spindle on the left end of axle 22 is provided with another arm 127 to the end of which the drag link 28 is con nected. The rear end of this draglink is connected to the lower end of an arm 29 that is pivoted at 30 and which is rotated about its pivot by means of a worm gear controlled by the steering wheel 31. It is now evident that by rotating the Wheel 31 the guide wheels 24 may be rotated about the pivot of the spindles so that the operator can guide the machine.

A shaft 32 extends downwardly through the hollow casting 20 and has its ends journalled in bearings in the top and bottom of this casting. A drum 33 is secured to the shaft by means of a pin 34 and a worm gear 35 is attached to the upper end of the shaft. A worm 36 is mounted for rotation in bearings 37 and is connected by means of several sections of jointed rods 38 to the crank 39, which is located adjacent the drivers seat 40. By turning crank 39 shaft 32 and spool 33 may be rotated. A cable 41 is secured to the drum 33 so that it may be wound onto the drum or unwound from the drum by rotating the crank 39.

Secured to each of the

side beams

17 and 17 a at the angle B is a downwardly extendingbar 42, whose lower end is secured to the rear side of a square timber 43. A similar bar 44has its front end secured to the upper surface of timber 43 and its rear end secured to a side memher by means of bolts or rivets 45.

Bars

42, 43 and the straight sections of the side frame members form triangles in the manner shown in Fig. 4. Secured to the ends of the timber 43 are plates 46 whose ends 47 are rounded and form pivots about which the scraper rotates. Reference to these pivots will be made hereinafter. v

A shaft 48 is journalled in bearings 49 which are secured to the upper flanges of the side members. Secured to the outer ends of shaft 48 are drums 50, about which the cable 51 maybe wound. The bearing 49 that is secured to frame member 17 is provided at its inner end with ratchet teeth 51, and rotatably mounted on the shaft adjacent the ratchet teeth is a rear segment 52 whose hub portion is provided with ratchet teeth that mesh with the ratchet teeth 51 in the manner shown in Fig. 6. Another gear segment '53 is secured to a shaft 54 that is journalled in bearings 55 secured to the underside'of the side members.

This segment has a downwardly extending arm 56 to the-end of which a rod 57 is pivotally connected. This rod is provided with a plurality of teeth 58 and'extends through an opening in a plate 59. The teeth 58 serve to hold the rod 57 in adjusted position. Secured to shaft 48 so as to rotate therewith is a'clutch member 60. This clutch member is made in the shape of a brake drum and has a cylindrical surface 61 that is adapted to be engaged by a brake band 62 to which reference will presently be made. Member 61 is also provided with a conical surface 63 that cooperates with a corresponding conical surface 64 on the clutch member 65. This clutch member is provided with gear teeth 66 that cooperate with the-chain 67 which extends from clutch member 65 to the gear wheel 68 on the power take-off. lVhen the tractor is running, clutch member 65 will be rotated but as it is not attached to shaft 48, it will not retate the latter until the gear segment 52 is rotated in a clockwise direction, Fig. 7, when it will be forced against the clutch member 60 so as to cause the

conical surfaces

63 and 64 to come into frictional engagement, whereupon the shaft is rotated in manner quite apparent. Shaft 48 is also provided with a ratchet wheel 69 which is adapted to be engaged by a latch member 70 that is controlled by means of a rod 71. When the latch member 70 is moved so as to come into engagement with the teeth on member 69, it will hold the shaft against rotation in one direction. Shaft 54 is provided with a crank arm 72 to which one end of the brake band 62 is attached. This brake band encircles clutch member 61 and when the parts are in the position shown in Figs. 6 and 7, the brake becomes efiective for the purpose of controlling the rotation of shaft 48.

A scraper having a bottom 73 and two sides 74 is located underneath the frame in the manner shown in Fig. 4. The sides 74 are provided near their upper rear corners with elongated slots 75 through which the pivot pins 47 extend. A red 76 extends trainsversely of the scraper and is secured to the upper edges of sides 74 by means of clamping members 77. An end gate 78 is pivotally attached to red 7 6s0 that it may swing from the closed position shown in ig. 4 to the open position shown in Fi g. 5. The end gate is provided with two spaced bolts 79 that are slidable l'I1,'l'l16 l38211-1l1gS 80 and which can be projected downwardly beyond the lower edge of the end gate so as to extend through openings 81 in the bottom ofthe scraper. Control levers 82 are pivoted at 83 to the end gate and are pivotally attached to bolts 79 by means of pivots 84. The adjacent ends of levers 82 are connected by a pin 85 which extends through slots 86. A cable 87 is attached to one of the levers 82 and extends upwardly passing through an eye 88 and terminating at 89 in a handle that can be grasped'by the'operato-r' so that he may release the latching means that holds the end gate in place and permit the same to move to open position when the scraper is to be dumped.

Cables 90 have their lower ends connected to the upper front corners of sides 74 and have their upper ends connected with the drums 50 so that when shaft 48 is rotated these cables are wound onto or unwound from the drums depending upon the direction in which the drums are rotated. Cables 41 are connected to the lower front corners of sides '74 in the manner shown in Fig. 4.

Referring now to Fig. 6, it will be seen that the frontend of the tractor is supported by means of a bar 91 that occupies the position from which the front axle has been removed and which is connected by means of a bolt 92 with the downwardly extending lugs 98. The ends of bar91 are secured to the lower ends of vertical bars 42 so as to provide a substantial support by means of which the weight of the front end of the tractor is transferred to the

frame member

17 and 17. The front end of the scraper is reenforced by a steel shoe 94 which extends a short distance to the front of the body. This shoe may be made of steel and may be secured in place so that it can be removed for sharpening whenever this is necessary.

The operation of this device will now be described. When the scraper is to be filled with material, it is lowered into the position shown in Fig. 4, and the machine caused to move forwardly. The scraper will soon be filled with dirt or other material, and as soon as this occurs the operator grasps the ends of bar 57 and rotates the gear segment 52 until the friction surfaces 63 and 64 come into contact with each other, thereby rotating shaft l8 and the drums 50. hen the drums are rotated cables 90 are wound onto the drums, and these then raise the front end of the scraper towards the position shown in Fig. 5. If the dirt is to be transported to any distance the scraper is raised only sufficiently to permit the machine to travel and when it is to be dumped shaft 48 is still further rotated so as to move the scraper into the position shown in Fig. 5. The end gate is then released and swings to the open position shown in Fig. 5, thereby pern'iitting the contents of the scraper to be dumped.

When the scraper is to be again filled, the operator removes the latch 70 and controls the downward movement of the scraper by means of the brake band 62. The operation is now repeated in the manner and bythe means above described.

From the above description it will be seen that I have produced a power operated scraper that is especially well adapted for handling and transporting material, and which can be easily controlled and by means of which the material can be readily dumped in any position desired.

The cables 41 can be lengthened or shortened by means of the Windlass above described and serve to control the scraper and limit its side motion as well as its downward tilt.

The tractor which has been shown associated with the apparatus can, of course, be

replaced by a tractor of any suitable design and can even be replaced by a caterpillar tractor in cases where such tractors are deemed to be preferable.

Having described the invention what is claimed as new is:

1. A power operated scraper comprising an upwardly arched frame having spaced side members, the rear end of said frame being secured to a tractor, a pair of wheels secured to the front end of the frame, a shaft extending transversely of the frame and mounted for rotation thereon, a clutch associated with said shaft, means for rotating one part of rear end of the scraper with the frame so that it can be rotated about a horizontal axis, a cable securedto each side of the scraper near the front end thereof, the other ends of the cable being secured to the shaft and adapted to be coiled about the latter when the shaft is rotated in one direction whereby the front end of the scraper is raised, a windlass secured'to the front end of the frame, a cable 7 extending from the lower front corner of each side of the scraper to the Windlass, means for rotating the Windlass so as to vary the length of the cables, an end gate pivotally secured to the rear end of the scraper and latching means carried by the end gate for holding it in closed'position. y

2. A power operated scraper comprising an upwardly arched frame having spaced side members, the rearend of said frame being secured to a tractor, a pair of wheels secured to the front end of the frame, a shaft extending transversely of the frame and mounted for rotation thereon, a clutch associated with said shaft, means for rotating one part of the clutch from a power take-off on the tractor, means for moving the clutch members into and out of operative position, a ratchet means associated with the shaft for holding it against rotation in one direction, means for moving said ratchet means into and out of] operative position, means extending downwardly from the frame for supporting the front end of the tractor, a pair of oppositely extending alignedpivots secured to the frame and located below the frame, a scraper located underneath the frame, said scraper having spaced sides, each side member having an elongated slot at its rear upper corner adapted to receive one of the pivots, a cable connecting each front upper corner of the sides with the transverse shaft, said cables being adapted to be wound about the shaft when the latter is rotated in one direction, an end gate pivotally secured to the scraper near its rear end, latch means for holding the end gate in closed position, a Windlass secured to the front of the frame, a cable extending from the lower front corner of each side to the wind- HAROLD M. PURSEL.