US1227745A - Plow. - Google Patents

Description

W. W. CAMERON. PLOW;

APPLICATION-FILED SEPT. 25. 1913.

5 SHEETSSHEET '1 Paten 2.9, 1911?.

WPW. CAMERON.

PLOW.

7 APPLICATION FILED sEPT.25, 1913.

w; r-ycwmow. PLOW.

APPLICATION FILED SEPT- 25,1913- I v N latented May 29, 1914.

' a SHEETS-SHEET w. w. CAMERON.

PLOW. APFUCATION manswnzs, m3.

a swans-mama. Y

' STAT S WIPLIAM VJ. 'CA MEIEtON, OF LA CROSSE, WISCONSIN, 'A$SI,G:NOR TO LA CROSSE PLOW ('30.,

OF LACROSSE, WISCONSIN, CORPORATION OF WISCONSIN.

r ow.

Specification of Letters Patent.

' Patented n y-2a, 11911 "2.

Application filed September 25, 1913: Serial 110.791,?08.

T all whom it may concern.

Be itknown that LVVILLIAM W. Calamari, a resident of La Crosse,' in the countylof La Cro se and State of "ViTisconsin, havehnvented certain. new and. useful Improvements in Plows, of-' which the following 1sa full. clear, and exact description.

The invention relates to plows and more particularly 'totractor-plows embodying mechanism for raising the plow-s bypowerp In tractor-plows, it is customary to pro- 'vide separate lifting-mechanism for each plowshare of agang, and mechanism for successively operating them to cause the plow bod es, arranged in a diagonal line for.

successive operation, to enter and leave the ground substantially on a-transverse line,

efiecting this adjustment.

and it is desirable to separately regulate thedepth of thecut of each plow. It .is

also desirable to avoid the pee of a lon'g while the machine is in operation, and lever for which avoids the use of a long A- further object of the invention is to provide improved means for.rendering any one of'a' gang of plows inoperative by the power-operated lifting or lowering mechanism', so that the machine may be operated -'without one or more of the plows.

i a lever which will be swung by the power-- clusion hereof-- A- further object of the invention is to provide improved power-operated lifting .meohanism; 1

A further ob e ct of the IDVQIItIOYI IS to provide improved means for manually operatingthe lifting-mechanism and which dispenses with the necesslty of providlng opera-ted lifting mechanism.

Other objects of the invention will be ap-' parent from the descriptioii of "the plow hereinafter set forth.

The inventionconsists in the several, novel features hereinafterset forth and more particularly defined by claims at the con- In the/drawings; Figure 1 isa' plan of aportionof a plow embodying the invention. ig. 2 is a section taken on line 2-2 verse-section taken on line.3 3 of Fig. 2.

.plowshare raised.

igg'l. the plow share being shown in ra-iscdposition. Fig: 8 is' a vcrtlcal trans- 55.

-Fig. 45 is a detail of the power-operated lift has been raised'by the power-operated lift ing-mechanism,- in which position the lift ing linkage has passed the dead center 'so it will beautomatically locked to hold the L Fig. 4 is a view showing the lifting-dog in position assumedwhen the parts are in position shown in F ig. 4. Fig. 5 is' a detail view showing-the liftingmelchanisni in'the position assumed by the parts wheii lifting and lowering mechanism, so that one plow will be locked and inbperative by. the power operated mechanism, \illlle the 'others mayremain operative by said mecha nism. Fig. 55 is a view showing the liftingdog in positionassumed when the .mechanism is in the position. shown in Fig. 5 Fig. 6'is a detail of the lifting-mechanism the lifting-linkage; has been rendered 1 operative by the power-operated showing the parts-in position assumed when v the plow hasbeen lowered Fig. '4- is. a sec-' p the clutch for operating the .plowsoperating shaft and the controlling device therefor.

tio'n taken on -l"e 77 of Fig. 1, showing Fig. 8 is a front elevation of one of the plow-shifting mechanisms. Fig. 9'is a detail section of the sliding stop..on the operating link of one' of the, plow-shifting mechanisms; being. a section takenon line 9'9.of-Fig. 5. Fig. 10 is a section taken on linelO -lO of Fig. 6. {Fig 11 is'a perspective of the slidinglock'on the lifting link. Fig. 12 is-a plan of one of the plow shifting mechanisms. Fig. 13 is a detail of the section of the dog of the clutch for oper ating the plow-oagzrating shaft and the controlling devices -erefor. Fig. 14' is a sectioh taken-on lirW;14 14 of Fig. 13.

The improved low co1np" ses a suitable frame which mayfbe sustained by carryingwheels. as well understood inthe art am by a traction-wheel .2, which is mounted on and drives an axlwhich is journaled in bearings rigid on the frame. The lattef comprises a ;front rail 15. a side rail 16; and diagonal bar17. -The plow may be con ;nected to the tractor by any suitable means,

as well-understood in the art.

fiThe plow comprises a series of plovn,

beams 27 arraiwed'in dia onal succession to operate success vely 1n the. ground. A plowshare 28 is suitably connected to each beam v to pass across dead center lever 38.

i the cut of the plow.

27. The front of each beam 27 is pivotally connected, as at 29 to a coupling 30 secured beam comprises a link 40, which is pivoted,

as at 39, to one of the arms of bell-crank Each link 40 has its front end curved downwardly and pivoted as at 42 to an arm 43 which is pivoted on a power driven shaft 44" which is journaled in suitable brackets 18 on the frame. The pivotal connections of arm 43, link 40 and lever 38 are relatively disposed to permit the linkage relation and cause the plow beam to be automatically locked or held in-raised position, as shown in Fig. 4. An improved depth-regulating device is provided for each plow-beam, and each of these devices comprises a link 45, which has its front end pivotally connected, as at 47 to arm 43, and its rear end pivoted, as at 52 to a slide 53 on link 40. The upper portion of slide 53 is extended .to form an abutment 54 adapted to engage a screw 49, which has a screw threaded connection with a bracket 50, which is secured to link 40. The front end of screw 49 is bent to form a crank 51 whereby the screw may be turned to adjust its rear end, which engages the slide 53. Link 45, being pivotally connected to the "power-operated arm 43 and eccentrically with respect to the fulcrum of the arm and with respect to pivot 42 between link 40 and arm 43, will be differentially operated relatively to link 40 during shift'of one of the plow-shifting mechanisms. \Vhen the link 40 is in position shown in Fig. 6, and the plow-beam is lowered, link 45 will serve to limit the movement of link 40 through slide 53 and thus serve to limit thedepth of By adjusting screw 49, the point at which link 40 will be arrested may be varied to'permit the plow to travel deeper or to hold it higher in the soil. Links 40 and 45 are both differentially operated by the lifting-arm 43, so that when stopscrew 49 is arrested, slide 53 will lock the entire linkage against movement in one direction. By providing an adjusting screw on each of the links 40, the use of long levers is avoided, and the crank 51, by which the screw may be adjusted, may be conveniently and readily operated from the platform on which the operatorusually stands while the ma ;hine is at work. For strength, each link 45 comprises dual members at the sides of aim 43 and link 40, respectively.

' of teeth 1 In tractor plows, occasion sometimes arises when it is desired to raise or lower one of the plows of the gang without shifting the others, and for this purpose, a long lever is usually provided. In tractor-plows in which a number of levers are necessary for this purpose, it is desirable to dispense with such levers, particularly .if they are operated by power-lifting mechanism, because the quick shift of such lever-s. sometimes causes an injury to the operator. The present invention provides means for manually operating any of the'plow-shifting-mechanisms individually without the use of a power-operated long lever whereby the operator might be injured. For this purpose, a socket 43 is formed on each arm 43 and is adapted to receive one end of a bar or round of metal 43 as shown in Fig. 6. In practice, this bar is carried at some convenient place on the plow or tractor and whenever it becomes necessary to raise one of the plows manually, the operator will insert the bar 43 into the socket 43 of the arm 43 of the lifting-mechanism for the plow to be raised, and easily operate said mechanism. Then the barmay be readily removed and the front portion of the plow will be entirely free from any long swinging levers which the operator must avoid if he is observing the operation of the plows from the tractor or the front of the plow.

The depth-regulating device, hereinbefore described, permits each plow-shifting linkage to be operated by the power or manually, independently of the others.

A ratchet wheel 55is fixed on shaft 23 and is constantly driven by the traction-wheel 22. A controllable driving-connection between the wheel 57 and the plow-operating shaft 44 comprises a sprocket-chain 56, a sprocketwheel 57, which is loose on the shaft 23 and a sprocket-wheel 58 fixed on shaft 44. Sprockets 57 and 58 have the same number so that they. will be driven at the same relative speed. An automatically releasable clutch for driving shaft 44 comprises an arm 59 on or rigid with sprocket 57 and a dog 60 pivoted as at 61 to the outer end of saidarm. Normally, the dog is disposed above the ratchet, so it will fall into engagement therewith when it is released. An abutment 63 is pivotedto said dog, as, at

-63- and pressed away from the end of the serves to hold the dog in engagement with the ratchet during a portion of each revolution of the 'dog. Controller rod. 64 is slidably mounted in guides '65 of the\frame and a spring; 66 serves ton'ormally press the rear endiof said ,rodinto the path of abutment 63.

from the path of abutment '63, the dog will then-pass into engagement with ratchet 55 andthe clutch will be driven, one complete revolution at the end of which, abutment 63 will be arrested by controller-rod 64k to disconnect the dog from the ratchet. After such disengagement, spring 63*,Fwill then shift the. dog away from ratchet-"t0 entirely clearit.- Resultantlyy'each timelever 67 is operated, the clutchkwill-drive chain 56 to.

drive the plow-operating shaft .44 one complete. revolution, at the endof which the clutch will. be automaticallythrown out of action. V i

A dog 69 is pivoted to each arm 43, as at 70 and saida'rni' is preferably formed of dual members between which the dog is confined. Between-* thefhubs of the arm-members, a collar 72 Wl1i'l1 is provided with a tooth .73 is fixed'on shaft ll to engage: dog 69 and shift arm 43to lift theplow-beam by power derivdfrom the tractionwheel. Vhen the plow-beai'n-is lowered, (Fig: 6), the end 69 of dog 69'is disposed in the path of rotation of tooth73. I A tappet 74 on one side of collax- 72 is adaptedto engage a lug 7 5 formed on bracket -in"whi ch screw49 is held and which is secured to link 4:0. This tappet, in its rotation with shaft stand collar 72 serves to lift the link a short distance to cause the engage said stud to hold; the dog outof op plow-shifting linkage to cross its deadcenter and unlock or release 1t so that the weight of the plow-beams will be applied to lower the. plows into the ground. Tooth 73 serves to engage the end of dog 69 and to shift the arm l3 and its plow-shiftingYlinkage to raise the plow-beam. The tappet serves as power-operated means formoving arm 43 to, shift the linkage ac-ross'its deadcenter, so thatthey plow and beam will be released to fall by gravity. A stud 69 on dog 69 projectslaterally therefrom and anarcuate' guide aformedon a stationary part,*such as the bearings 18 for the shaft 44, serves to erativo relation with tooth 73' during a lowering operat on so that the dog will not fall'into the path of said tooth 'uptihthe plow-beam has been Iully'lowereo; The inner face of thisguide a will, by arresting stud GWagainst outward movement, prevent accidental disengagement- 0f dog 69 and tooth 73 during a lifting-operation: A link 40 and arm 43 is provided for each beam and constitute a lifting connection therefor.

Each connection'is' opcrable by' hand independcmly of the others.

A ssiu'ning the plow-emitting mechanism When lever 67 is moved forwardly, rod 64 will be withdrawn "free to permit this movement when it crosses render the clutch 55, operative for one for abe'ain to be in position shown in Fig. 4,

L, lation of the lifting-linkage. Then it is desired to. lowerthe-plows,-lever 67 will be w 70 pulled forwardly to permit the clutch 55, 5.9,

60 to become operative and cause it to drive shaft 44 one complete revolution during which lug 74 will engage lug 75 to lift the front end'o f link 40 above the dead-center, and arm will be swung,upwardly thereby sufiiciently tocause the weight of the beam and. plow to drop, the lifting-linkage being its dead-center. Y

When the plows are in the ground. the shifting-linkage will be in position shown in Fig. 6. If it is desired to raise them, the .operator "will again .pull lever 07' forward'to complete revolution and during this movement, each linkage will be operated by its topth T3 to catch dog 69 and swingitsiarm' 5L8 forwardly to operate link to and raise the plow. The tail. of said' dog is formed so it will be struck by the curved end. ofthe link 40 to disengage it from tooth 73 after. the linkage has passed'its dead-center, so that it will be automatically held in position to hold the plow and-beam raised.

It sometimes occurs that it' is desired to keep one or more of the" plows raised and to leave the other plows operative by the power-shifting mechanism. The invention provides means for rendering any 'of the plows inoperative by the power-operated lifting-mechan'isin, So that the plows to be used will remain operable by the poweroperated mechanisms. For this purpose, a pin 80 is slidably held. in slide )3 and-is provided witha terminalSl which is adapt-I ed to pass'through an aperture 82? in slide 53 and into aperture 82 in link l0 to lock 1 links 4.5 and lo aguinsti'elative movement. Spring 83- normalliv presses the pin,'so that its terminal Sl will be held in aperture 82 and permits it 'to' be ithdrawn therefrom and swung laterally inn groove 8-} in one side of slide'53 whereby the pin will be held inoperative and out of engagement with link 40. \Vlieii this locking'pin 'isin operative ptsition to-lock linkage against op,- eration by the power-inechairisiu. the parts will be in position shown in Fig.- 5. 'lVhen pin-terminal Slfis-swung into aperture 82 while the lifting connection is in position shown in Fig. 4, it will engage the side link 4.0 and will spring into aperture 82 of the link 40, as the linkage passes from the position shown injFig; fat which time the link-' age. will be automatically locked in raisedposition, to the position shown in Fig. 5, at which time the linkage will be unlocked against mo ement by the beam. Resultantly, if a terminal 81 of pin 80 is turned several shifting-mechanisms,

- tappet during alternate revolutions,

rotation of shaft 44 will cause tappet'74 to strike abutment 75 and raise the latter sufliciently to shift the linkage across the. dead center, so that the weight of the beam will be applied -to operate link 40 rearwardly and then, before the plows have been lowered sufficiently to enter the ground, and pin-terminal 81 which will spring into aperture 82 as the linkage reaches the position shown in Fig. 5, will lock links 45 and d 'pllslllg two stop-member s, means members. of the regulating 40 together against relative movement an serve to hold the plow-beam raised, When the parts are in the position shown. in Fig. 5, abutinents 7 5 will be out of the path of 74 and-dog 69 will be out of the path of tooth 73. Resultantly the remaining lifting-mechanisms may be operated by power, while the one which has been locked by its pin This mechanism thus exemplifies a device by which any of the lifting-mechanisms may be locked to hold the plow raised, while the. i

remaining lifting-mechanisms will remain operative by power.

For the purpose of causing the plows to be successively raised, the teeth 73 for the tative succession on shaft 44 and for the purpose of successively releasing the mechanisms, tappets 74 are also placed in rota: tive succession on said shaft. Itesultantly,

alternately and successively operate the shifting-mechanisms to raise and lower the plows.

The invention is not to be understood as restricted to the details set forth,since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention. I

1 c Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is;

1. In a plow, frame, carrying wheels and a plow beam, of a power operated lift connection for the beam, a depth regulating device comprising cooperating members whereby the lowering movement limited, both of said members being mounted on and shifted by. said connection in low ering'the beam, and means for locking one of the members of the regulating device to the lifting connection to holdthe plow on the beam outof the ground.

2. Ina plow, the combination with a frame, carrying-wheels, and a plow-beam, of. apower-operated lifting-connection, a depth-regulating device comprising cooperating ment of the connection in lowering the beam, means for locking one of said members of theregulating-device to the shift- 80 will hold the plow inoperative.

are set in ro-' by rotation to vary 5..In a plow,

' frame, carrying-wheels, said shaft will I spective'ly, one of the combination vwith a of the connection will benection comprising a shaf -:arm is pivoted,

by and slidable on the link and a coiiperat' members for limiting the moveing-mechanism to hold the plow raised, and a shaft provided with means for. operating said connection, the shaft and means thereon being rotatable without operating the connection when the regulating-devlce is means for operating said connection, said shaft being rotatable without operating the connection when. theregulating=device is lockedtosaid connection. .4. In a plow, frame, carrying wheels and a'plow beam, of

a lifting connection] comprising. a link,

power operated mechanism for operating said connection and a depth regulating dethe combination ,:with -.a'

vice comprising a link, an adjustablestop screw mounted on one ofs'aidlinks, and a. cooperating member-connected to the other of said links, said screw being adjustable the movement of the connection. a 1 the combination with a and .av plow-beam, of apower-operated lifting-connection comprising a link-,a depth-regulating device comprising a link and two stop-memberson the links respectively, and ascrew forga'djusting the movement of the connection,

6. In a plow, the combination with a frame, carrying-wheels, and a plow-beam of apower-operated v lifting-connection comprising a link, a

depth regulating device comprising, a, link and said -connectionf.re--

a screw on the connection-link-for varying the movement of the connection.-

7. In a plow, the combinatil'nwitha frame, carrying-wheelsand a plow-beam, of apower-operated lifting-connection coin prising a link, a depth-regulating dev ce comprising. a link and two .s'eparablestop;

members on the links respectively, and a screw. on the connection link; for varying the movement of the connection. Y

8. In a plow, the combination with a frame, and a plowbeam, of'alifting connectioncomprising link and an arm, power operated mechanism. for operating said 0011- t on which said a stopmember supported ing member on. the link, one of said menibers being adjustable relatively ,to the "linkto vary the depth of-the cut. 4 i,

' 9. In aplow, the combination with a said members comprising.

frame, and a plow" beam, of a lifting con 1 nection' comprising "alink and an arm,

power -=operate'd nieclia nisii'i for operating sa d COIIIIQCUOIY comprising a'. shaft on which-said arm isp voted', a stop member supported byand'slidable on the link and an adj ustable stop screw coiiperati'ng with said slidable=member to vary the depth of the cut, mounted on and supported by the link. I I

1'0. -I1i.'a plow, 'the combinationwith a frame, and a plow-beam,. of power-"operated connection for operating the-regulating link differentially with respect to the shifting llink.

' 14. In a plow, the combination with a lifting-connection, comprising a link, a device for limiting the movement of the link in loweringthe beam, comprising a link and a slide andgan adjustable stop between the slide "and" the-connectiondink to vary the depth of the-cut. v I I 11. In a-plow, the combination wvith a frame, carrying-wheels and aplow beam,

of a lifting connection comprising a link and an arm, power operated: mechanism comprising a shaft on whiclr'the arm is pivoted, a depth regulating link pivote'd to said arm and means for locking the regulating link to the linkof the lifting connection.

12. In a plow, the combination with a frame, carrying-wheels and. a plow-beam, of a power-operated shifting-connection comprising a link, depth-regulating means comprising a link pivoted to said shiftingmechanism and an adjustable stop-device.

between the links.

13. In a plow, the combination with a frame, carrying-wheels and a plow-beam, of a power-operated shifting-connection com prising a link and a depth-regulating mechanism comprising a link, and means on the 1 frame,- carrying-wheels, and a plow-beam,

of a power-operated shifting-connection,

comprising a'link, depth-regulating mechamsm comprisinga lmk, means on the connection for operating the regulatingdink of a power. operated shifting connect-ion comprising a link, depth regulating-mechanism comprising a link, means on the con-1,

adapted'to. receive and removably hold a nection for operating the regulating link able stop-memben differentially with respect to the shiftinglink, an adjustable stop-device between the links, and means for j'jlocking'the links in position-to hold the beam raised.

l7. In a plow, the-combination wit-h a frame, carrying-wheels and a plow-beam,' of

a power-operated shifting connection com prising a link, depth regulating mechanism comprising an adjustable screw mounted on the link, a stop member slidably connected to the link, and a ink pivoted to said slid- 18. In a. plow, the 'combination'of a frame,

carrying-wheels and .a plow-beam, of a power-operated shifting connection comprising a link, depth-reg-ulating mechanism comprising a screw mounted on the link, a stopniember slidably connected to the link, a link pivoted to said member and means for locking said member to the link.

19. In a plow, the combination; with a frame, carrying wheels and a plow beam, of

a lifting linkage, power operated means for operating the linkage comprising a shaft, and means on the linkage to which a lever may be detachably connected to operate it manually, said linkage being operable by the lever independently'ofsaid shaft.

20. In a plow, the combination with a f 'ame, carrying wheels and a series of plow beams, of separably' operablelifting linkagesfor the beam s,' power operated mechanism for. operating said linkages, comprising a.

shaft, means on each linkage to which a lever may be detachably connected and a lever adapted to be connected to either of the linkages to operate them separately, said linkages being operable by said leve-rindependently of the shaft. v

21. In a plow, the combina tion=-with;a frame, carrying wheels and a plow ,beam, of a lifting'linkage, power operated mechanism for operating-the linkage comprising 'a 'shaft and a socket in said linkage adapted to receive a removable lever for manually operating the linkage, the latter being operable by v said lever independently of the shaft.

22. Ina plow, the combination with a frame, carrying wheels and a series of plow beams, of separately operable lifting link ages for the beams, power operated mechanism for operating said linkages and a socket on each of the linkages adapted to receive a removable lever for manually operating any of said linkages, said linkages being operable by the lever independently of said mechanism. i

23. In a plow, the combination with a frame, carrying-wheels and a plow-beam, of a power-operated shaft, an arm on said shaft, a connection between the beam and the arm comprising a link connected to said arm, means oetwee'n the shaft and the arm for operating the arm and means "on the arm 124,. In a plow,- the combination with a frame, carrying-wheels and a plow-beam, of

a power-operated shaft, an arm on said shaft, a connection between the. beam and vthe arm comprising a link connected to said arm, means between the shaft and the arm for operating the arm, and a socket on the arm adapted to receive and removably hold a lever whereby the link may be manually operated, said arm being operable by the lever independently of the shaft.

25. In a plow, the combination with a frame, carrying-wheels and a series of plowbeams, of a power-operated shaft, a series of arms on said shaft, connections between the beams and the arms, each comprising a link ponnected to one of said arms, means between the shaft and the arm for operating the arm, and means on each of'the arms adapted to receive and removably hold a lever whereby the link may be manually operated, said arm beingoperable by the lever independently of the shaft.

26. In a plow, the,=- c'ombination with a frame, carrying-wheels, and a plow-beam, of a power-operated shaft,an arm on' said shaft, a dog on said arm, means on the shaft for engaging the dog to operate the arm, a connection between the beam and said arm comprising a link and a fixed guide for holding the dog out of engagement with the means on the shaft and means for disengaging the dog from the means on the shaft.

27. In a plow, the combination with a frame, carrying-wheels, and a plow-beam,

shaft, a dog on said arm, means on the shaft for engaging the dog to operate the arm,'a

WILLIAM W, CAMERON.

Witnesses;

C. W. DICKINSON, O. V. KELLY,

of a power-operated shaft, an arm on said

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