US1212526A - Wheel-plow. - Google Patents

Description

A. MCCREREY.

WHEEL PLOW.

APPucATmN FILED SEPT. 22, i915.

2 SHEETS-SHEET l.

A. IVICCREREY.

WHEEL PLOW.

APPLICAUON FILED SEPT. 22, 1915.

Patented Jan. 16,1917.

2 SHEETS-SHEET 2.

.J7/iff; Cre/ft;

3 I l {"Fwnff/ am w imam@ out withdrawing .ALEXANDER MOCREREY, 0F HEAW'ATHA, KANSAS.

WHEEL-racer.

Specification of Letters '.Patent.

@riginal application filed. May 25, 1915, Serial No. 30,404. I Eivdec and this application llerl September 22,

To all whom t may concern.'

Be it known that l, ALEXANDER McClin- REY, a citizen of the United States, residing at Hiawatha, inthe county of Brown and State of Kansas, have invented certain new and useiul improvements in lWheel-Flows, of which the following is a specification.

rlhis invention has relation to wheel plows and chiefly t'o the motor driven plow disclosed in an application for patent filed by me in the United States on the 25th day of May 1915, Serial No. 30,404@ of which this application is a divisional part.

The invention relates to the mountings and adjusting means whereby the plows are enabled to make a short turn and may be raised or lowered to meet varying surface.

and soil conditions, my primary object being the provision of a motor-driven machine which may be turned around a corner withthe plows from the ground.

A further purpose of the invention is the provision of an implement which is balanced and adapted to turn with the least resistance and in the shortest space possible, thereby admitting of the implement turninga corner squarely in either direction or turning to any required degree as occasion may necessitate.

The invention further aims to provide means whereby the plows or earth treating devices may be adjusted vertically without changing the pitch or angle of the shovels or like parts so that when adjusted to any position the plows remain parallel to a given position.

"With these and other objects in view, which will readily appear as the nature of the invention is better understood, the saine consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described.

and particularly claimed.

in the accompanying drawings has been illustrated a simple ,and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the recise structural details therein exhibited, ut that changes, alterations and modifications within the scope of the invention as claimed may be resorted to when desired.

Serial Tro. 5l,958.

.a raising and a lowering thereof; Fig. 3 is a detail view or' the adjusting means Jor the plows; Fig. i is a detail view of part of the plow adjusting mechanism; Fig. 5 is a detail view of the rear portion of the implement showing more clearly the mountings and power transmitting mechanism tor the rear wheel.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings, by the same reference characters.

The main frame comprises a transversely disposed beam l, which is substantially of JT-form, the short member of such beam being bolted or attached in any manner to a vertically disposed-bracket 2. A vertically disposed sleeve 3 is mounted in bearings at the upper and lower end of the bracket 2. A spindle e projects laterally from the lower end of the sleeve 3 and a bull or drive wheel 5 is mounted thereon. A vertically disposed shaft 6 is moimted in the sleeve 3. A pinion 7 is secured to the lower end of the shaft G and its teeth are in mesh with the teeth of a gear wheel 8 attached to a side of the` drive wheel 5. rllhegear elements 7 and 8 are of the bevel type although it is to be understood that ,gearing of any form may be employed which wil admit of transmitting motion from the shaft 6 to the wheel 5. T he shaft 6 is adapted to be connected in any manner to the motor, not shown, which is mounted upon the machine for propelling the same. A. frame 12 of substantially U- form embraces the rear portion of the wheel 5 and is provided with a elevis 13 for convenience or hitching a wagon, implement or other device to the machine to be propelled patenten aan. ie, reas.

clined outwardly and forwardly and receives the outer end of the spindle 4. The frame 12 turns with the sleeve 3 and with the drive wheel 5, as indicated by the dotted lines in F ig. 1.

Thefront wheel `is designated by the numeral 26 and is mounted to turn about a vertical axis and is adjustable vertically. The standard carrying the front' wheel 26 is provided with a laterally extending arm 29 to which a link 35 is connected at its forward end. A link 36 is connected-to the rear end of the link 35 and the rear end of said link 36 is connected to an arm of a segmental gear 42 which is in mesh with a worm 43 forming part of a shaft 44. A gear wheel 45 is secured to the shaft 44 and is adapted to mesh with a companion gear wheel 46 secured to a manually operable shaft 47 which is provided at its upper rear end with a hand wheel 48, thereby admitting of the implement being steered by hand when desired.

It is to be understood that the shaft44 may be driven from thesame motor which propels the machine as fully disclosed 1n my aforesaid parent application although the connections between the shaft 44 and the motor are not an essential part of the present invention. The shaft 44 is provided at its rear end with asprocket wheel 119 which is connected by means of a sprocket Ichain 120 with a sprocket pinion 121 secured to a worm shaft 122 and which worm shaft is in mesh with a segmental gear wheel 123 having connection with the sleeve 3 and frame 12.y The center of the gear 1253 coincides with the axis ot' the vertical shaft 6. The axis of the spindle 4 is'in line with the axis ofthe shaft t5. 5y means ofthe (,lesci'ibed mechanism the wheels 5 and 2b may be turned in horizontal planes to steer the machine. and in all positions of the wheels their axes will lie On lines which intersect at the point or center' about which the machine turns. hence the power required to drive the machine when making a turn is not in excess of that required for propelling it in a straight course. ()n reference to Fig( 1 of the drawings it will be observed that the landside 124 is curved longiitiulinally. thereby facilitating the turning' of the machine to the right.

'llie plow shovels are indicated at 90 and areI attached to thc standards of plmubeams 91 and 92 which converge toward their forward ends where they are connected and provided with a clevis having a longitudinally elongated opening 93 through which passes a crank pin 94 carried by an arm 95 projectingfrom a shaft 9V. An arin 97 projects from the shaft 9() at an angle t'o the arm 95. rod 9H connects the arm 97 with an arm 7G projecting from a transversely disposed shaft 72. The shai't 72 is formed with a crank portion 73 upon which the plows are The shaft mounted. The plow beam 91 is mounted directly upon said crank portion whereas the plow beam 92 is mounted thereon by means of a bracket which comprises members 99 and 100. The member 99 is attached to the lower rear portion of the beam 91.and eX- nds forwardly and laterally. The member 100 is attached to the beam 92 and eX- tends rearwardly and laterally. The opposing ends of the members 99 and 100 are bolted or otherwise secured and fitted about the crank portion 73 which is mounted therein.

The crank shaft 72 upon which the plows are mounted is provided with arms 76 and 77, the arm 76 radiating from the axis of the crank shaft whereas the arm 77 projects from the crank portion 73. This crank shaft may be turned either by hand or by power. A 'shaft 78 paralleling the crank shaft 72 is provided with an arm 79 which is connected by means of a rod 80 with the crank portion of a vertically disposed crank shaft 38 tot` which gear 42 is secured. A lever 81 is mounted upon the Ashaft 78 vand is provided witha latch member 88 which is adapted to coperate `with a toothed seg ment 83 which is secured to a part of the main frame. A rod 84 vconnects the lever 81 with the arm 77 and this rod has adjustable connection both. with the arm 77 and the lever 81 as shown in Fig. 4. The lever 81 l 'is formed with a portion having a slot 85 which receives the connection joining the` rod 84 to the lever. This connection is adjustable in slot 85 and varies the adjustment of the plows according to the throw of the lever.

The adjustable connection of the rod 84 with the arm 77 permits the plows to be set at normal working depth when the lever 81 is at or about the central point of its movement. Moving the lever forward fromethis point at once interferes with correct plowing, the purpose of such forward movement, which is always accomplished manually, being strictly and solely to lift the plows entirely clear of the ground so as to clear a stone or to move the machine to another placeto permita new land. The latch 88 holds the lever either in its central or for' ward position. An arm 86 is loose upon the shaft 78 and is yieldably connected thereto' by means of a spring 87 which is of helical form and mounted upon such shaft. One end of the spring 87 is attached to the shaft 78 whereas-the opposite end engages the arm 86.' The arm 86 acts as a trip to disengage the latch 88 from the toothed segment '83 when the plows v,are automatically adjusted by power derived from the shaft 38. 38 is disposed so that its crank portion 39 is in line with the direction ot' movement of the machine so that no matter which direction 4the shaft 38 is turned the l in the same direcl e* the land wheel t .i halance the ma is criant: rtion of the shaft I Y. .ard ence rotation Ae right or to the left exard push mon the rod 80, where! Y@ is t The arm 86 is tu rne :i a 89 which is mounted 'lo the; Een so as to be grogected into or out or tte n latch S8 and is provided with per edge adapted to ride under the latch and thereby raise m t tappet 89 preferably pivi S6 and may be turned aside s clear the latch 8S as shown in Fie: or may he adjusted to aline with the arm :o the latch 88 eliect dis- L the same from the toothed when the jolows are automatir ted by `powerl derived trom the Z8 turned by of the rod 80, the arm 86 er: upper end or the tappet i 889 thereby raising said basement with the segment i e rotation the shaft conie high shouldered end or' the tappet f einst the latch and will torce l ie 8l to the extreme i7 whereupon a Second latch S2, which o. to the lever, engages the last tooth r endy of the segment and holds the lever while the tappet and the arm 86 may to normal position, The latch 82 is .,ihly constructed so as to ride rdly over the segment but engage 'the or an attempted forward movement of The latches 82 and S8 are raised i andle on the lever 8l but the, l rise under the, ini'luence of the. with out alleeting the latch 82.

d wheel 58 is mounted upon the li" of a shalt ,it segmental rim with a co maaien (il attached to lurningg ot the shaft (33 erturning or' the shaft :irelative raising` or lowering; of d wl whereby the main trame may .rticallv upon the land side. A red upon the outer end of the i provided with a latch TO to toothed segment 'Tl loose whereby such shaft may yquired to ellect vertical andside the machine.

vthe furrow when tornino" a corner.

he shaft t-(S adapted to` 'easily and a light construction of motor and propelling apparatus may he used. The sev# eral cranlrs and connecting parts' which l carry the plows are so proportioned and placed at such angles to each other that they keep the plows level and relatively lowered while the machine rises so that the plows will remain in the ground while the machine is turning corner. The plows can be lowered. automatically or hy hand by means of' the lever 81 and by means of said lever they can also be raised to a non-working position above the ground.

is to be understood that the front wheel 26 runs in the open furrow against the bank and thereby automatically steers the machine when going ahead while the driving wheel 5 runs in the furrow behind the last plow and hoth these wheels ride up out of When the corner-turning mechanism is set in mtion and the drive or bull-wheel rises from the furrow, the lever 8l. is automatically pushed bach its full swing and the latch 82 will the tooth at -the rea-r end of the segment 83 to hold the lever in its rearmost position, rlhe bull-wheel does not always rise the same distance' and the slot Y85 permits the pivotal connection between the lever 8l and the rod 8d to be shifted so that theplows will be lowered the same .distance that the hull-wheel and frame rises. As before stated, the corner-turning mechanism imparts a rotar movement to the ucrioht shatt- 38 and the crank `3,9 of the same pushes the bar 8O rearwardly and thereby rocks the shaft 7G. rhe arm S6 and tappet S9, of course7 follow the moveme'ht of the shaft 76, the latch 88 being raised out of engagement with the segment 83 and being engaged byA the forward upturned extremity of the tappet so that the latch and the lever will be swung1 rearwardly. As the steering gear turns to straight ahead position, the shaft 7S is rocked forwardly; but they lever 8l is Aheld in its rear position so that the crank lo will not rise and the plows will remain in their lowered position. llfhen the straight ahead travel is resumed., the lever is swung forwardly manually and the plows thereby raised to normal plowingposition. The spring 87 yields so as to prevent breakage hy jamming' of 'the parts if thc pivot in the slot should be improperly adjusted but, iii

the adjustment is vright and the operation normal, the tension of the spring will hold the parts in their operative relation.

In order to keep the plows level laterally `when the bull-wheel rises from the furrow,

the land wheel must be lowered to the same degree that the machine is raised. This result is attained by the connection between the shafts 72 and '63 whereby the land wheel 'axle or shaft G6 receives the same movement power and lowers the land wheel and plows relative to the frame) isfor a distinctly separate purpose. to keep the plows in the 'ground at the same depth `while turning corners as whileV running straight ahead. The 'moment the corner-turning'gearing is tripped and set in motion, the driving wheel is quickly steered to the lright or to the left and immediately rolls up out of thefurrow lin which it normally runs onto the surface of the ground. This operation naturally would raise vthe main frame and plows with the driving wheel were not the plows automatically adjusted downward sin'iultaneously withth'e turning and rising of the driving wheel to the surface. At this particular moment, the front end of the machine remains vertically stationary. The cranks are so proportioned and located that when the driving wheel rlses to the Surface and the plows are alltomatically adplsted, as described, the plows .really remain at their original and normal working depth and position so that the actual result is that the rear portion of the machine, except the plows and the land wheel, rises. This operation permits the machine to 'turn a square cornerwith the plows as a pivot. The adjustn'ient of the -land wheel simultaneously with the plows keeps the entire machine level,r laterally, the bottoms of the plowsbeing kept parallel with the surface of the groind `botli laterally and longitudinally. After the driving wheel and the front wheel have'been steered to one side, the driving wheel rolls approximately one-fourth of a revolution in a circular path, whereupon it is quickly steered to straight-ahead position again and. simultaneously with the later movement, the arm 86 and the tappet SS) are returned to normal position but the lever S1 remains locked in its rear position until the driving wheel drops into they furrow back of the plow whereupon the lever is returned by hand to the normal position.

Having thus described the invention, what is-claimed as new is:-'

f1. ln a machine of the character de- This latter purpose isv short turinand shovel plows mounted upon the main trame and provided with longitudinally curved landsides to admit of the machine turning with a minimum amount of resistance.

2. In combination, a frame, a shaft-hav-A ing a crank portion, a beam mounted upon the crank portion ofthe shaft, a second beam, a two-part bracket having correspond- 7 l ing ends brought together about the crank portion of the shaft and having the parts attached'to the respective beams, andmeans for turning the shaft to effect a raising or ;vv

lowering of the beams.

3. In combination, a crank shaft, a beam-,

mounted upon. the crank portion'of the crank shaft, a second shaft paralleling the sa il crank shaft, connecting means between the two shafts to cause them to turn together, a

third shaft having a crank axle upon which 1 is mounted a supporting wheel, gearing bei tween the second and third shafts, andan operating lever connected withthe second shaft.

. 4. In combination, a crank shaft, a beam mounted upon the crank portionl of the crank shaft, an arm projecting fromV the ,crank shaft, a second shaft, an operating; lever mounted upon thesecond shaft to turn therewith, an adjustable connection between the operating lever and arm of the crank" shaft, a latch mounted upon/the operating lever, a toothed segment to be engaged by the latch, a tappet for 'operating the latch and adapted to be thrown into or out of the.v l

path thereof, and a support for the tappet.

5. In combination, a. crankshaft having an arm projecting therefrom, a' beam Y mounted vupon the crank shaft, 'a' second shaft having an P'arm projecting therefrom, an operating lever secured to the second shaft, a toothed segment, a'latchmounted iv rupon the operating lever and adapted to en- I gage the toothed segment, a support having vieldable connection with the second *.Shaft,

.i t'appet mounted upon the support andadapted to be thrown into and out of the path of the latch, athird shaft lhaving a In combination, shaft having a crank axle upon which is i ounted a supporting wheel, a second shafty geared t0 the Crank axle shaft, yan operating lever provided With a lati-lua toothed segment connected with'- the second shaft. a crank shaft having all arm connected with tht toothed segment, a

beam mounted upon thl crank shaft, a third operatlng lever c0n' shaft having an arm, a

'A nected With the third shaft, a llatch mounted a crank portion Which isconnected With an upon thefoperating lever, L toothed Segment arm of the third Shaft'to turn the latter in 10 for coperating with the latch mounted 'upon` the same direction Whether the fourth shaft the operating lever of the third shaft, a supis turned to the right lor to the left so as to port yieldably connected with the third effect opposite vertical adjustment of the shaft, a tappet mounted upon the support supporting Wheel and beam. y

and adapted to be thrown into or out of the In testimony whereof I aix my signature. 15 mth of the latch, and a. fourth shaft having ALEXANDER MGCREREY. [n su]

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