US429387A - Wheeled scraper - Google Patents

Description

(No Model.)

2 Sheets-Sheet 1. P. A..R-ATHBUN.

' WHBELBD SGRAPER.

PatentedJun V3, 1890. V

(No Moda.) 2 sheets-sheen 2.

P.A.RATHBUN.

`WHEELED SGRAPER- V No. 429,387. PatentedJune 3. 1890.y

, UNITED STATES -PATENT OFFICE.

FRANK A. RATHBUN, OF KENTWOOD, LOUISIANA, ASSIGNOR TO THE RATH- BUN MANUFACTURING COMPANY, OF MILWAUKEE, VISCONSIN.'

WH EELED SCRAPER.

SPECIFICATION forming pare of Letters Patent Nia-129,387, dated June e, 1890.

Application filed February 5, 1889. Serial No. 2981724. (No model.)

To all whom it may concern:

Be it known that I, FRANK A. RATHBUN, of Kentwood, in the parish of Tangipahoa, and in the State of Louisiana, have invented certain new and useful Improvements in Vheeled Scrapers; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to Wheeled Scrapers;

ro and it consists incertain peculiarities of construction and combination of parts, as will be fully Set forth hereinafter, and pointed out in the claims.

In the drawings, Figure l is a side elevation ot' the device with the wheels removed and indicated by a circle, showing in full lines the Working position and in dotted lines the carrying position ofthe scraper. Fig. 2 is a side elevation with one wheel removed, zo showing the dumping position. Fig. 3 is a front elevation of the device With the parts in the same positions as shown in full lines in Fig. 1 and with parts broken away and 011e Wheel in section. Fig. 4 is a detail plan 2 5 View showing the raising devices at each side of the machine. Fig. 5 is a detail section on the line 5 5 of Fig. 2, showing also the adjacent toothed lifting-Wheel. Fig. Gis another detail view showing an elevation of the 3o dumping and lowering lever and attachments, looking' from the inside. Fig. 7 is a detail elevation of portions of the pan, axle, seat-arch, and lifting-bar on the other side of the machine from that shown in Fig. 6. Fig. Sis a detail section on the line 8 S of Fig. 1.

A B represent the ground-wheels of my device, and a b are toothed raisin g-wheels, whose hubs a b iit inside the hubs A and Bof the ground-wheels Aand B, respectively, and are secured in place by screws c orotherwise, so that the ground-Wheels and raising-wheels will move together.

O is the axleof the machine, which is up- Wardly curved or archedfrom one side to the other, and has there at each end of the 'said arch an angular bend c c', and thence a right-angled forward bend c2 c2, and thence the ends are again bent at right angles to the last bend and turned outward and rounded,

as shown at c3 c3, toreceive the hubs of the wheels A and B, the extreme ends of said axle being screw-threaded to receive suitable nuts c4 when the Wheels are in place.

D is the pan or scraper proper, which is suspended from the axle by hangers. d d, which are pivoted on pins or bolts d', projecting from the axle O at the junction of the bends c c2, the said hangers being on the inside of the said bent portions of the axle C, 6o while to .the outside of said portions of the axle are secured Vthe plates e e2, which have holes for lthe reception ofthe ends of a liftingbar E, which has an arched form corresponding to that of the axle O, the extreme ends ot' 65 said bar E being shaped to form lifting-lugs e e for engagement with the teeth on the l' Wheels rt b, as hereinafter described.

F is an arch whose ends f encircle the axle ends c3 and which rises up and extends across 7o the machine above and independent of the axle C, and to the center of this arch F is secured the support f of the seat F from which a link f2 extends to a hook f3 on the pole F2, to each side of which pole bent hounds F3 F4 are 75 secured, whose other ends are loosely pivoted Y at cl3 cl3 to lugs d2 cl2, secured near the lower front edges of the sides of the pan D, as shown, the said hounds being braced to the rear end of the pole by a strap f4. From the side F3 8o of the hounds there rises an arm f5, to which is pivoted one end of abar G, extending backward, its rear end being provided with alongitudinal slot g, and` above this a series of teeth g', this end of the bar G resting when 85 the scraper is in either of the positions shown in Fig. l on the inturned arm g2 of an upright g3, rising from the side of the pan adjacent to wheel A. To this upright g3 there is pivoted alatch g4, having an outwardly-bentfront 9o arm g5 and an inwardly-bent rear arm gi at right angles to the main body of said latch.

D represents the rear end of the pan,whose side edges are bent to fit closelyinsidethe rear edges of the sides of the pan, the top of said side edges of said rear end D being extended forward into straps d4 d4, pivoted at d5 d5 to the upper portions ot' the sides of the pan at the points shown in the drawings, While another strap d@ rises from one of the side edges roo of the rear end D of the pan, to which is pivoted at (Z7 a link D2, whose front end, in the position shown in full lines in Fig. l, is above the rear arm g6 of the latch g4 and against the inturned arm g2 of the upright g3, which latter arm forms a stop for said link D2 in this position, the front end of said link carrying a wrist-pin D3, which travels in the slot g, thus connecting the link DE and bar G.

I-I is an adj ustin g-lever designed to regulate the angle of the scraper-bottom, so that the nose of the pan D may lie more or less elevated or depressed, according to the depth of soil which is desired to be scraped, and this lever is pivoted at 7L to the outside of one side of the pan D back of and above the center of said pan side, there being suitable stops or keepers, as h 7L', and spring h2, so as to keep said lever normally in an upright position within reach of the driver when the scraper is in the position shown in Fig. l, the desired adjustment being accomplished by means of the engagement of a pin H', projecting from the inner side of said lever I-I, with the teeth g on the bar G, the driver grasping the lever H and holding the parts in engagement to aecomplish the desired result.

On the side of the machine adjacent to the wheel A the lifting-bar E, already named, is provided with a curved arm E', which extends over the portion c2 of the axle C on that side, curving around and under the forward end of said axle portion c2 and kept ata suitable distance therefrom by lugs e464, all as best shown in Fig. (5. This curved end of the said arm E is provided with a longitudinal groove e3, for the reception of a pin t', at the lower end of the angular shifting-lever I, which is pivoted at t" to the arch F, the upper portion of said lever I being bent above and back ot' said arch and its extreme upper end 712 being within convenient reach of the drivers foot, a depression ot' this end serving to shift the lifting-bar E toward the wheel A, so that the lifting-lugs e e on the ends of said bar will. be forced between the teeth of the wheels a and l), while by raising said end i2 of said lever I (by the drivers foot) the said lifting-bar E will be forced toward the wheel B, and the said lifting-lugs e e on the ends of said bar will be shifted beyond and free from the teeth of said wheels d and b.

J is the upper part of the dumping and lowering lever, the lower end of which upper part is bifurcated, as shown at y' 1'7", to receive the inwardly-bent upper extension e5 of the before-named plate c2, to which said members jj are shackled, (by boltj2,) the said upper part J heilig kept from falling in too far by means ot' a leaf-springj, secured to said part J and extending down and curved so as to bear againstthe said plate-extension e5. The member j extends outward at an angle to the part'J, and to its end is pivoted the lower part J of the said dumping and lowering lever, which ends in an upwardly-eurved hook J 2 on the rear side of said part, above which said part J is ofTsetted and provided with a slotji, which receives the shank of a bolt f, inserted in the adjacent portion c2 of the axle, said bolt serving as a guide-pin in the movement of the slotted part J K is a tripping-lug projecting from the arch F, for the purpose ot disengaging the lifting -lug e from the teeth ot' the wheel a at the proper time, and L L are stops projecting outwardly from the sides of the pan above and in front of the centers thereof, close to one edge of the hangers (l d, the stop L being a locking-stop, as hereinafter described.

The operation of my device will be readily understood from the foregoing description of the construction, in connection with the accompanying drawings. Startin g with the machine in the position shown in full lines in Fig. l, the device is in its operative position for scraping, it having been already explained how the driver, through the lever II, can control the angle of inclination of the pan, and hence regulate the depth of the material being scraped. Now, suppose the pan is filled and it is desired to raise it. The driver simply puts his foot on the end t2 of the angular shifting-lever I and depresses said end toward the axle, which forces the lifting-lugs c at each end of the lifting-bar E into the spaces between two adjacent teeth on the wheels d. and b, and as the horses pull the machine forward the revolution of the wheels A and B carries forward the toothed wheels a and Z), (the hubs of the toothed and ground wheels being fast together, as first dcscribed,) and the teeth of the wheels a and b, by cngagement with the said lifting-lugs e e, carry the lifting-rod E up and forward with the axle C under the arch F, raising the loaded pan and raising the dumping and lowering' lever J J to a vertical position until ihe stop L on the side of the pan nearest the wheel A strikes the under side of the hook J2 and raises the lever .l J slipping past the bottom of said hook at the same moment that the tripping-lug K on the arch F strikes the lifting-lug e on that side ot' the machine (this lug e having a heel e for engagement with lug K) and forces it off the wheel a., and then the lever J J drops and holds the said lug L firmly between the said lever and the ad jacent portion c2 of the axle C, while the lugL on the other side of the ,machine is close against the analogous portion c2 of the axle on that side, and hence the pan is held rigidly in this elevated position, as shown in dotted lines in Fig. l. In order to dump the load, the driver has only to force the handle of the part J of this lever J J toward the wheel A, which will depress the lower part of said lever (the memberj acting' as a bell-erank) and cause the hook J 2 to depress the forward end g5 of the latch g4, thereby raising the inwardly-turned rear end gi of said latch, and thus freeing the forward end of the link` DL from engagement with the stop ,or arm g2 of IIO the upright g3, and when this is done, the pan being loaded and hung in front of its center, the said pan will automatically dump from the rear, the rear end D of said pan rising and the parts assuming the position shown in Fig. 2. Should the pan stick at all, a slight backward movement of the part J of the dumping-lever will facilitate matters, and by drawing said part J of the lever again forward (all of which the driver can do with one hand without moving from the seat F the pan D will be righted and closed and the parts again in the position shown in dotted lines in Fig. l.l If it is now desired to again lower the pan to the scraping position, it is only necessary for the driver to first pull the upper part J of the lever J J toward him, (which will raise the lower part J above the stop L,) and then pull said part J to and back of avertical position, and the panwill drop by gravity, (being hung forward of its center, and the parts c2 of the axle C being now forced back of a vertical line,) leaving the pan D in the posit-ion shown in Fig. lin full lines ready for scraping. It may sometimes happen when the load has been partially dumped that the pan will stick, and to complete the dump under such circumstances (when it would be inconvenient for the driver to push thelever J farther backward without leaving his seat) all that he has to do is to depress the end i2 of the shiftinglever I, which will throw the lugs c e into engagement with the toothed wheels a and b, and then to back the machine, when there will bea forced dump, the pan assuming a practically vertical position, this action of the lever I and lugs e c being the same as when the pan is to de raised, as before described, the difference being that the machine is now driven backward instead of forward. By'reason of the seat-supporting arch F, rising from the rounded axle ends adjacent to the wheels above andindependent of the cranked portion of the axle and thelink which unites the seatsupport to the pole, the said axle turns on its crank beneath the said arch, and the machine raises, lowers, scrapes, and dumps without affecting the position of the seat, and hence the driver is relieved from the strain and jar and motion incident to such other machines as have the seat-support directly connected to the axle, which above advantage is apparent, and in addition the shifting and raising lever, the adjusting-lever, and the dumping and lowering lever are all within reach of his foot or hand and can be operated with one foot or one hand without need of the driver changing his position in the seat.

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

l. In a wheeled scraper, the combination, with the ground-wheels having toothed raisin g-wheels rigid therewith, a cranked axle, and a scraping-pan suspended therefrom, of a laterally-movable lifting-bar having lugs at each end and a shifting-lever for throwing said lifting-lugs into and out of engagement with said toothed wheels, substantially as set forth.

2. InaJ wheeled scraper', the combination, with the ground-wheels having toothed raising-wheels rigid therewith,l a cranked axle, and a scraping-pan' suspended therefrom, of a laterally-movable lifting-bar arranged parallel to said axle and provided with liftinglugs at each end and ashifting-lever for moving said lifting-bar and throwing said liftinglugs into or out of enga-gement with the said toothed wheels, substantially as set forth.

j 3. In a wheeled scraper, the combination, with the pole and hounds, the ground-wheels having toothed raising-wheels rigid therewith, a cranked axle, and a scraping-pan suspended therefrom and linked to the hounds, of a laterally-movable lifting-bar provided with lifting-lugs at each end, a shifting-lever for operating said llifting-bar, and a jointed dumping and lowering lever, substantially as set forth.

4. In a wheeled scraper, the combination, with the ground-wheels having toothed raising-wheels rigid therewith, a cranked axle, and a scraping-pan suspended therefrom and having its rear end pivotally connected to its sides, of a lever and lifting-bar for raising the pan and detents for sustaining it in a raised position, and a jointed lever and mechanism for dumpingrthe pan when said lever is moved in one direction and for lowering said pan when said lever is moved in the opposite direction, substantially as set forth.

5. In a wheeled scraper, the combination, with the ground-wheels, a cranked axle, and a scraping-pan suspended therefrom, of a pole and hounds extending therefrom to the IOO lower front portion of the scraping-pan, a bar connected to the hounds on one side and linked to the rear of the pan, a locking-stop on this side of the pan, and `a lowering-lever adapted to engage said locking-stop when the pan is in a raised position and to be pulled free therefrom when. itis desired to lower the pan, substantially as set forth.

6. In a wheeled scraper, the combination,

IIO

with the ground-wheels' and a cranked axle loosely pivoted to the lower front portion ot' the scraping-pan, a toothed bar connected to the hounds on one side and extending back and linked to the rear of the pan, and an adjusting-lever pivoted to this side of the pan and having a pin for engagement with said toothed bar, substantially as set forth.

S. In a wheeled scraper, the combination, with the grouinl-wheels, a cranked axle, and a scraping-pan suspended therefrom and having a pivoted rear-end dumping-board, of a pole and hounds extending therefrom to the lower front portion of the scraping-pan, a bar pivoted to the hounds on one side and connected by a pivoted link to the pivoted rear end of the pan, a locking-stop on this side of the pan, a stop-arm for engagement with the pivoted link, a lifting-latch carried by said arm, and a jointed lever adapted to engage the locking-stop when the pan is in a raised position and to dump the pan by a movement in one direction or to lower the pan by a movement in the opposite direction, substantially as set forth.

S). In a wheeled scraper, the combination, with the ground-wheels having toothed raising-wheels rigid therewith, a cranked axle, and a scraping-pan suspended therefrom, of a laterally-movable lifting-bar arranged parallel to said axle and provided with liftinglugs at each end for engagement with the toothed wheels, one of said lifting-lugs having a heel projecting beyond the periphery of the toothed wheel, a transverse arch extending froin side to side of the machine above the axle, a shifting-lever pivoted to said arch for moving the lifting-bar, and a tripping-lug projecting' from said arch above one of the toothed wheels for engagement with the said heel on the lifting-lug on that side, substantially as set forth.

10. In a wheeled scraper, the combination, with the ground-wheels having toothed raising-wheels rigid therewith, a cranked axle, and a scraping-pan suspended therefrom, of a laterally-movable lifting-bar arranged parallel to said axle and provided with liftinglu at each end, an arm projecting from said lifting-bar and provided with a longitudinal groove, a transverse arch rising above and independent of the cranked axle and supporting a seat, and an angular shifting-lever pivoted to said arch, having its free upper end adjacent to said seat and its free lower end provided with a pin for engagement with said groove, whereby the said lifting-lugs may be thrown into or ont of engagement with the said toothed wheels, substantially as set forth.

l1. In a wheeled scraper, the combination, with the ground-wheels, a cranked axle, a scrapingpan suspended therefrom having a rear-end dum ping-board pivoted to the pan sides, a pivoted link extending forward from said pivoted rear end and carrying a wristpin at its front end, a stop-arm rising from one side of the pan for engagement with said pivoted link, and a pivoted latch carried by said stopjarln, of a pole and hounds extending therefrom and loosely pivoted to the lower front portion of the scraping-pan,

`a bar connected to the hounds on one side and extending back and slotted at its rear end for the reception of the said wrist-pin, and a dumping-lever adapted to depress one end of the pivoted latch and raise the other, thereby freeing the pivoted link from engagement with the stop-arm and permitting the rear of the pan-bottom to drop away from its pivoted rear end,substantially as set forth.

l2. In a wheeled scraper, the combination, with the pole and hounds, the ground-wheels, a cranked axle, and a scraping-pan suspended therefrom and linked to the hounds and having a pivoted rear-end dumpingboard, of a link pivoted to said rear end and carrying a Wrist-pin on its front end, a slotted bar connected to said wrist-pin and to the hounds, a stop-arm rising from the pan side for engagement with said link, a latch pivoted to said stop-arm and having a rear inwardly-bent arm extending beneath said link and a forward-extending arm, a twopart lever, the upper part of which is shackled to a plate rising from the axle and connected by a bell-cran k and pivot to the lower part, which latter extends parallel to the crank of the axle and is olfsetted and slotted near its lower end, an upwardly-curved hook projecting from the said lower end, a guide-pin projecting from said axle-crank and extending through the slot in the lower part of said lever, and a locking-stop projecting from the side of the pan and adapted for engagement with said lever, substantially as set forth.

13. In a wheeled scraper, the combination, with the ground-wheels having toothed raising-wheels rigid therewith, of the axle upwardly curved or arched from one side to the other, and having at each end of said arch an angular bend, and thence a right-angled forward bend, and terminating at each end in a right-angled outward bend rounded for the reception of the wheel-hubs, perforated plates secured to the bent portions of the axle, a lifting-bar arranged parallel with and adjacent to the said arched axle, the ends of said lifting-bar passing' through said perforated plates and being formed into lifting-lugs for engagement with said toothed wheels, an arm projecting from said liftingbar and extending over the right-angled forward bend of the axle on one side and having a longitudinal groove, and a Shifting-lever provided with a pin for engagement with said groove, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Kentwood, in the parish of 'langpahoa and State of Louisiana, in the presence of two witnesses.

FRANK A. RATIIBUN.

Vitnesses:

S. H. AMACKER, J. R. KINLEY.

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