US1228530A - Grading-machine. - Google Patents

Description

C. G. CARLBERG.

GRADING MACHINE. APPLICATION HLED sEPT.21.191e.

T E E H A. s T E E H S 5 www@ C. G. CARLBERG.

GRADING MACHINE.

APPLicATloN FILED sEPT.2l. i916.

l 228, S.. Intentw-lune 5, 19 7.

5 SHEETS-SHEET 2.

C. G. CARLBERG.

GRADING MACHINE.

APPLICATION FILED sPT.21. 1916.

Patented June 5, 1917.

5 SHEETS-SHEE 3.

' attouwq c. G. CARLBERG.

slmmwc MACHINE.

APPLICATIUN FILED SEPLZI, i916.

Paten-wd June 5, i917.

5 SHE'ETS-SHEET 5.

v aan saarne CARL GEORGE CARLBERG,

OF OMAHA, NEBRASKA.

GRADING-MACHINE.

assenso..

Specification of Letters Patent.

Patented ll une 5, 19117.

.lippneanon inea september 21, 191e. serial No. 121,391.

To all lwhom t 'may conce/rn:

13e it known that I, CARL Grenen QA'RL- mmc, a citizen of the United States, resldlng at Unialia, in the county of Douglas and State of Nebraska, have invented certain new and useful lmprovements in Gradinglttlachines, of which the following is a specilic-ation.

This invention relates to an improvement in grading machines adaptedI for use upon comparatively large areas of ground, and llas for one of its objects to provide means :for plowing, scooping and elevating the ground, said means being used and actuated in connection with the engine of a motor vehicle, the stresses for the most part being to show relative position of parts when the scoop or scraper is elevated. Fig. 8 1s a vdetail to show means for shifting the carrier frame, being an end view of one of the cams, the shifting-bar being in longitudinal section. Fig. 9 s a detail relating to Fig` l for clearly showing certain gears. Fig. 1() is a detail showing a keyway and key re spectively for the operating shaft and a sprocket wheel.

Referring now to the drawing, the invention is illustrated in connection with a vehicle which may be propelled by any Suitable power, as theengine shaft 1 adapted to ro tate the rear axle 2 since the engine shaft is provided with a gear wheel 3 (Fig. 2.) endirected substantially at right angles to thewglgng the gear wheel 4 of the line shaft 5,

line of travel so that the vehicle may be of comparatively light weight. y

The invention includes the combination with an engine-driven vehicle, of a carrier frame mounted upon and adapted to have an intermittent movement longitudinally thereof, an endless carrier provided with plows and movable in a cycle transverse to the line of travel of the vehicle, an endless, inclined conveyer, and a scoop or scraper arranged to receive the furrow slices from the plows, and to deposit the excavated earth upon the conveyor. The invention also includes the use of a plurality of plows upon a carrier movable horizontally and adapted to engage in the ground at different depths, so that the stresses will not be delivered coincidently when forming deep fur-rows.

The invention consists of the novel construction, combination and arrangement of parts as described herein and claimed, and as illustrated in the accompanying drawing, it being understood that changes in form, size. proportion and minor details may be made without departing from the invention, as determined by the appended claims.

In the drawing, Figure lis a view in side elevation of the grading machine. Fig. 2 is a view of the machine in longitudinal section, on line 22 of Fig. 3. Fig. 3 is a plan view' of the machine, the drivers seat, foot boards and upper part of the vehicle framel being removed. Fig. 4 is a transverse section through the carrier frame 0n line lr-t of Fig. 3. Fig. 5 is a transverse section through the carrier frame on line of Fig. 3. Fig, 6 is a rear view of the machine.

Fig. 7 is a detail relating to Figs. 1 and Q,

said shaft 5 having bearings in the vehicle frame G and being provided at its rear end with the bevel gear 7 engaging a bevel gear 8 of the stub shaft 9 upon which is mounted a sprocket wheel 10, a sprocket chain 11 being employed for engaging the wheel l0 and engaging a sprocket wheel 12 upon said rear axle.

In order that furrows may be formed substantially at right angles to the line of travel while the vehicle is moving forwardly, and to provide a mounting for certain mechan ism for this purpose, a carrier frame is-provided'and shown herein as a platform 13. As best shown in Fig. 5, it is slidably mounted at its opposed sides in the side bars a of the vehicle frame, the tongues of the platform engaging in the grooves c of the side bars, this mounting operating to resist movements vertically but permitting movements of said platform longitudinally of the vehicle frame.

In order that the platform or carrier frame may remain stationary while the plows engage the ground and while the veicle is moving forwardly said platform is provided with a pair of forwardly projecting shifting-bars 14, each being provided with a slot 15 (Fig. 8.). At 16 (Fig. 3.) is indicated a transverse shaft upon which is mounted a pair of cams 17 each being provided with a tooth d (Fig. 8.). A rotatable movement for the shaft 16 is provided by means of its bevel gear 18 engaging the bevel gear-facing 19 of the spur gear 20 of the shaft 21, said shaft 21 and the gear 20 being rotated-by means of the spur gear 3 of the engine shaft, the teeth (Z of the cams simultaneously kentering the slots 15 and engaging the yshifting bars 14 for moving the carrier frame forwardly.

At 22, near one of the sides of the vehicle,

is an operating shaft journaled in the vehicle frame and carrier frame, its front end being provided withl a bevel gear 23,' said shaft, between its ends, being provided with a keyway 24 (Fig. 10.) and upon said shaft is mounted a sprocket wheel 25,r its hub bef carrier frame, upon said -shaft, 27 being n y23 and being provided lwith a toothed gear' mounted an idler sprocketvvheel 28, a key` way and key, respectively, being provided for said shaft and sprocket wheel ksimilar to that yalready described for 'members 22and 25.

Mounted upon the sprocket wheels 25 and 28 is an endless carrier orsprocket chain 29, uponwhich arek mounted the plows 30,31 and 32, a suitable underframe 33 being pro vided with rollers 34 and disposed below and carried by the platform 13 forresisting stresses and 'forfmaintaining the plows in the ground when they move below the plat form. if The sprocket cha-ins move in the direction indicated by thevarrows shown in` Fig. 4, shaft 22 being rotated by operationy of the transverse shaft 63 journaled in the front part of the vehicle frame, said shaft 63 having a miter gear 64 engaging the miter gear in engagement with the worm'66 of the engine shaft. ln'operation they platform 13 will be moved forwardly of the vehicle jby action of ythe cams 17 as described, the plows then rbeing above the platform, and the parts are so proportioned and arranged vthat the plow 32 will enter the ground when the platform 13 has completed its forward move-y ment. v

The plows, preferably, are of different sizes so that ay single furrow of considerablev depth may be formed at each complete rorbicular movement of the endless carrier 29, the plows engaging different horizontal planes in the ground, this being of great advantage since the stresses will be lessy than the use of a single, comparatively large plow in the formation of. a deep furrow; and it will be understood that, while the plows engage in the ground and while the vehicle is moving forwardly, the platform 13 will'remain stationary.

' Means are provided for removing and elevating thefurrow slices which are formed by the plows, consisting, in part, of a scoop or scraper 35 having a length substantially equal to the length of the furrows or platform, said scraper being of angular form in lcross-section and consisting of a forwardly projecting blade e and an inclined slide-plate f. The ends of the plate f of the scraper are pivotally'mounted, as indicated at 36, upon the pair of brace-mcmbers or hangers 37 which project downwardly from the platform or carrier frame.

In order that'the scraper 35 may have a swinging movement for depositingthe furrow slices uponthe endless, inclined conveyer 38 at intervals and immediately after eachL complete furrow has been formed, mechanism is providedy consisting, in part, of the pair of crankar1ns39 mounted upon the transverse shaft 40 which has bearingsy in the carrier frame, a pair of links`4l being' 80 employed and pivotally connected with the.y f

f crank-arms and scraper 35. Mounted loosely upon the sha-ft 40 is, a pinion 42 adapted to constantly engage the pinion 43, said pinion 42 being under control of a clutch 44 having ak collar kg engaging in they groove or track-k ywary it ofthe wheel 45, said'wheel 45 and' pin ion 43being mounted on the shaft 46. y

Shaft 46 is provided at Aits inner end with a miter gear 47 in engagement with the ruiterk gear 48k of shaft 21. A rotatable movement for shaft 21 is provided by means of its pin` ion 20 beingin engagement with the'k pinion 4 as heretofore explained. Asbest shownr in Fig. k9-it will be seen thatthe shaft 21 is provided with a keyway 49,the miter gear 48 being provided with a key 50 engaging in ysaid keyway, which permits the gear 48 to slide on the shaft 21 and permits the gears 48 and 47 :to remain in engagement when the carrierk frame is shifted forwardly of the vehicle.

Since the scraper is mounted upon -the d platform 13 rit will have a movement for- `vvardly kof the vehicle simultaneously withk the forward ymovement of all other partsy upon the platform, yincluding ,the plows.r

The parts are so proportioned and arranged for their movements that the blade e of the scraper 35 will be disposed adjacent to the plows, and in the same plane as thebottom of the largest plow, when the plows engage inthe ground, the result being that the furrow slices formed by the plows 32,A 31 and 30 will be depositedl upon said' blade e while y the endless carrier 29 is moving in somewhat less than one half ofl its cycle.

As soon as the plows pass from the lower sidey of the platform, the crank-arms 39 will swing in an arc substantially of 30 degrees to incline the plate f for cansingthe loose earth thus elevated to slide rearwardly and c downwardly upon the endless conveyor 38, said swinging movement of member 35 being caused by the temporary engagement of the pinion 42 with the pinion 43, said pinion 42 eing under the control of the clutch 44 as explained. The groove or trackway l1, of the wheel 45 has a suitable curvature for causing a comparatively rapid swinging movement innata@ Y in an upward direction of the crank arms 39A to cause the loose earth to be discharged to the conveyer 38 and to thenimmediately swing downward to dispose the blade upon the excavated art of the ground, as shown in Fig. 2, and uring the forward movement of the platform the blade e will slide upon that part of the ground from which the earth has been removed and will operate to scrape the surface of the ground when slidin forwardly. 4

aving fully described the parts which effect the plowing, any further explanatlon relating to their operation is not considered necessary. Since the furrows are formed transverse to the line of travel, the vehicle may be, comparatively of light weight, and therefore less than ordinary power will be required for operation.` lin the practical use of the invention, the speed at which the v ehicle may be driven is a 'matter of no importance since the speed for the endless carrier 29 will correspond thereto. The plows, of course, may have any suitable width to form wide or narrow furrows.. The parts which lcontrol the movement of member 29 are so `the three plows to form the single, deep furrow, the miter ear 48 will remain 1n engagement with t e miter gear 4:7, the key 50 sliding in the keyway 49 of shaft 21, the carrier frame or platform remaining stationary until the plow 32 has completed its furrow.

While any suitable construction may be provided for the conveyer 38, l have shown and prefer to employ two endless belts m and n, each being provided with cross-strips. For moving the belts, a horizontal, transverse, rotatable shaft 51 is employed, saidy shaft having bearings in the inclined frame 7c, and actuated by means of the rotatable shaft 9 heretofore mentioned, the shaft `9 being provided with a miter gear 52 in engagement with the miter gear 7, and a sprocket wheel 53 being loosely mounted on shaft 9; also a sprocket chain 54 being provided and mounted upon the sprocket wheel 53 and upon a sprocket wheel 55 of shaft 51. At 56 is indicated a shaft having bearings in the upper part of the frame la, said shaft being Vprovided with a sprocket wheel 57, and by means of a sprocket chain 58 in engagement with the sprocket wheel 57`and a sprocket wheel 59 upon the shaft 51, the endless belt u may be moved.

As best shown in Fig. 6,the bevel gear 7 of the driven shaft 5 is constantly in engagement with the two bevel ears 8 andl 52, the engagement of said gear with the gear 52 causing the rotation of shaft 9 upon which the sprocket wheel 53 is mounted for moving the belts m and n as above described,

and since the gear 8 is loosely mounted on shaft 9, its direction of rotation will be reverse tothe direction of rotation of the will be deposited upon the hopper and upon the belts to be conducted upwardly, and from thence to fall upon the inclined slide 61, this slide having any suitable inclination and being disposed transversely of the vehicle. As shown in Fig. 2, idler shafts 62 may have bearings in the conveyer frame and may be provided with sprocket wheels or pulleys, as shown, to sustain stresses directed to the conveyer belts.

What l claim as my 'invention and desire .to secure by Letters'Patent is,-

1. A ading machine, comprising, in combinatlon with a forwardly movable vehicle, a carrier frame mounted upon and adapted to have an intermittent movement substantially parallel with the line of movement of the vehicle, a movable, endless carrier mounted upon and encircling the carrier frame, plows mounted on the carrier for forming furrows transverse to the line of movement of the vehicle, an inclined conveyer mounted on the vehicle, a scraper member mounted on the carrier frame arranged to have a swinging movement in one direction for receiving the furrow slices from the plows and to have a swinging movement 1n a reverse direction for depositp ing the furrow slices upon the conveyer.

2.- A grading machine, comprising, in combination with a forwardly movable vehicle, a carrier frame mounted upon and adapted to have an intermittent movement lon 'tudinally of the vehicle, a movable, en less carrier mounted upon and encircling the carrier frame, a plurality of plows of varying dimensions mounted on the carrier and adapted to -be disposed in alinement during a part of the movement of said carrier for forming furrows transverse to the line of movement of the vehicle an actuated, inclined conveyer on the vehicle, and a scraper member mounted on the carrier frame movable in one direction to receive the furrow slices when formed by the plows and movable in an opposite direction to deposit the furrow slices upon the conveyer.

3. A grading machine, comprisin in combination with an engine-driven ve cle, .130

Images