US1491850A - Excavating machine - Google Patents

Description

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April 29 ,31924.

efsheetswsheet 1 mhfmmull- Awal A29 1924. 1,491,850

"A, M. DOLL.

EXCAVATING MACHINE Filed dan. 11 1.923 -6 'sheets-sheet e ALBERT ivifieivu's noni., or Wiiuznxii, Wisconsin.

nxoiiva'rine atacante. f

Appiieaiwn iiiedfianeary `1 1-,ia2a' sensi no. 612,030.

To all it concerti:

.. Beit known that I, Aminii'r M. DOLL, a

'citizen of the United States' residing at Wauzeka, in the county of Crawford' and State ofllisconsin, have invented certainnew and useful improvements in Exeavatl ing Machines, of which the following is a specification.

This invention relates to excavating inachines.

The' primary object lof this invention is the provision of an excavating' machine which is relatively simple in construction,

compactly huilt, and which may he used in universal manner eartlreari'ying operation in facile in a minimumof time, and lwithv certain automatic dispatch as will enable 'an opera# to'r to'- easilyv control the same without as- 2o.

sistance-- A further object Vof this invention isthe vprovision of an excavating macliine'which load and carry a quantity Will automatically it will' of materia-l to a desired point where automatically dump the saine.

A further, object of this inventioiiis the provision of an excavating machine embody-- ingga novel 'shovel or scooping arrangement, which may be 'operated through an entire vciroumference,`to automatically load or un.-`

load material.- 1

A further object of this invention is the provision of an excavating. machine einhodyinga Anovel shovel operating nism.' A

A fui-ther ohJect .of

winch iiiechathis invention yis/tlie provision of a coinpactly arranged excavat#v ing machine. adapted for supporting a plue rality ofv 'scooping or sliovelling devices which are aiitoniatic'in operation'.

Other objects land ladwintagies of. this infvention will he apparent durinpr the course of the following detailed vdescription.A

ln the accompanying drawings, forming a part of thisispccilicatioii.V and Figure l --is a side elevation of the im# proved excavating machine showing! a pair of shovel devices carried thereby. one of them in excavating.position and thefotlier 'in load i releasing position.

a winch 'mechanism einhodi to effect an excavating oi mannen'4 drive f or control means.-

same in load carrying position..

` drive means wherein similar reference characters designate correspondinnr parts throughout the several views..

' wheels QO're'frotatahly carried. or plates 22 may he Figure 3 isa fragmentary planview ofcertain traine.. details of. this invention.

Figure 4 is a rear elevation of theim.-y proved excavating machine, showing-more vparticularly the means I 'controlling a shovel device.

Figure 5v-is a plan. view of Vthe improved frame details of this invention. f vl'igure 6 is a fragments plan view of in this inven-l tion for vautomatically Figure? is a fragmentary transverseclfoss sectional view9 showing details of the winch mechanism; v

Figure Sis a) fragmentary view, partly in section, showing a portion of the Winch tliggure 9 isA an elevation., partly in sec-v tion, of a shovel or scoop device used in connectionv 'with1 thisv invention, showing the Figure lOisa fragmentary view, partly in cross section, showing .the Aclosure control latch of a'shovel ymember illustrated in Figure 9.

Figurejll isa fragmentary cross sectional view, showing aI clutch mechanism used for selectively operating different partsofthe 'excavatiiig'machineI 1 'ln 'the drawingsywliereiii for the purpose of illustration is shown but the preferred embodiment of this invention7 the letter A. generally designates the in'iproved excavat ing machine, which `includes chassis B; stationary supporting frame C; rotatable supporting frame D; shovel arraii gement l carried by the rotatable supporting-frame D; winch mechanism F; p i'iinemover supported by the stationary fianievC; and i H operated 'h v the prime mover for controlling' the various Amechanisms of this invention. as will he hereinaftermore fully described.

' v Referring to the chassis fi'anieB. the saine may he of any approved construction, and may incliide'thel frame 15', 'coinpi'ising side channels 16' andcnd cross channels 1.7. Bearings 18 maybe-"suitably carried below the frame l'fforii-otatably receiving axles 19 upon vthe vou'terends of which the supporting Cross bars provided intermediate the ends'of the frame, having theirfends attach'edto-theside channels 1 6.` Referringftoftlie i stationary sup' frame Cf which- -is l carried by. i .the c frame 15, the same principally includes an annular supporting band 25, which is C- .shaped in cross section and attached to the chassis frame by means of the transverse Achannels 27, and relatively smaller transverse channels 28. These channels 27 and 28 are arranged in substantially parallel relation and are directly connected as by angle .clips 2,9 to the inner` circumference of the stationary band 25. A transverse central channel 31 may also be provided for connection upwardly to the chassis frame 1G and suitably connected to the band 25, if desired; This transverse member 3l is inverted U- shape vin cross section, and aids in the support of certain details of the rotatable frame D, and drive 'means H.

As above mentioned, the stationary frame band isfC-shaped in cross section and provides the annular upper and lower outer flanges 35, which provide pockets to rotatably receive the reduced annular upper and lowerportions 36 of an adjustable band or ring member 38, which plays an important part in regulatingthe automatic control of the shovel devices E, as will be subsequently set forth.

The rotatable supporting frame D is of novel construction,and is compactly assembled for rotation upon and within the stationary supportingv frame C. The same includes an inner frame ring 40, which is 'T- Av:sa

shaped in cross section, and an outer frame ring 41, concentrically arranged with the ring 40, which is channel shaped in cross section. The inner ring 40 includes the annular band portion 42 providing an inner smooth circumference, within which the large ring gear 43 is positioned, which meshes with certain details of the drive mechanism H, as willbe subsequently described, to effect rotation of the supporting frame D. The horizontal outwardly extending flange 44 of the inner ring 40 is adapted to support a plurality of radial connecting plates, 45, which may be suitably riveted to -said flange 44, and upwardly connected as by riveting to'a horizontal le'g portion of the channel ring 41. The rotatable supporting frame D is carried by roller bearingsupon lthe stationary frame portionC. These roller bearings consist of brackets carried outwardly at the ends ofthe cross braces .27,

- upon the ends of which vertical rol'ler bearings`51 are supported, for rolling within the pocket of the outer ring member 41 of the movable -frame D. 4To prevent the lateral shift or binding action of the rotatable frame D with res ect to the stationary frame C, it is preferred) to provide an auxiliary annular member 55, angle shaped in cross section,

" supporting a plurality of rollers 56 in substantially horizontal plane, which engage the outer circumference of the T-shaped i. frame ring 40, substantially as is` illustrated .tudinal edges.

in Figure 2 of the drawings. In this manl ner, the movable frame D is rotatably supported within the stationary supporting frame details above described. If preferred, additional roller bearing devices 57 may be carried by stationary details vof this invention for engagement with the lower circumferential marginal edges of the ring 40 and ring gear 43, substantially as is illustrated in Figure 2 of the drawings.

Referring to one of the shovel arrangements E, thc same includes a relatively short shaft v61, which is rotatably supported by bearings 62 and 63a upon a radial plate 45, of the rotatable frame D. This shaft 61 extends outwardly beyond the circumferential surface of the adjusting frame ring 38, and is connected by means of a universal joint structure 63 to a sleeve 64 of the adjustable shovel beam 65. A portion 66 of the beam is telescopically disposed lwithin the sleeve beam portion 64, and has the shovel or scoop member 67 carried at the free end thereof. The beam 65 is extensible and may be adjusted in any approved manner. Aframe 68 isprovided for each of the shovel arrangements E, which includes the front Referring to the construction of a scoop or shovel member 67, the same is preferably polygonal in formation, including side plates 75 suitably riveted along their longi- ()ne end of the shovel 67 is open entirely to provide for entrance of material to the compartment 76 of the scoopvor shovel, and upon opposite sides of the. open end of the shovel, a' series of picks or digging blades 77 are carried, which extend outwardly of the'plane of the opening of the shovel member. At the opposite end of the scoop or shovel 67'a closure arrangem'ent 78 is provided, which includes a pair of lids 79, hingedly connected at opposite supporting walls. as at 80. A novel latch mechanism 81 is provided, which will be subsequently described. A stationary, supporting platform 85 for the operator of the impro-ved excavating machine is provided, which is supported upwardly of the movable frame. D. AThis platform 85 will be which extend upwardly from the plane of the chassis and movable supporting frame i port certain details of the winch mechanism of this invention; the lower endsot said posts or standards 86 lbeing suitably attached to details of the -chassls and stationary frame, as is well illustrated in Figures Zand-3 of the drawings. These supporting posts 86 extend upwardly above the opera-v ting platform 85, and are adapted to sup\ F. The platform 85 is provided with' an outer annular series of openings 89, and an inner annular 'series of openings 90 prefer-l abi 'disposed in staggered relation interme iste .the spaced outer openings 89.-l The openings 89 are adapted to receive detachablepins 91, while the openings 90 prefl erably receive detachable pins 92; said pins 91 and 92 being provided as trip pins for* Referring to the latch mechanism 81, the

same includes a latch arm 100, pivoted as at 101 to a wall 75 ofthe scoop or shovel 67,- and having lan opening' V102 therein Within which extension lugs 103 of theclosure lids 79 are adapted to seat when the lids kare closed, in order to hold them in locked relation. A spring 104' normally urges the latch member into locked position, substantially as is illustrated in Figures 9 and 10 ofthe drawings.' The oscillating lever 94 may appro-priatelybe termed the dumping lever of the excavator shovel device E, and has the ends of its cross arm A'99 connected to the latchy member 100 by means ofa double length cable 106. Upon movement of the rotatable supporting. frame. D about the stationary supporting trame,

thefexcavator shovel device lE will of Course `be moved, Tand Vafter the Lshovel has been filledv withfground or the material to'be excavated, and carried to a designated pointe l,the lever portion 97 will-engage a pin l92 positionedin a desired .aperture 90, and

" upon further relative rotation of the' excavator shovel arrangement E, the levei` 94 Will. be rocked to release the scoop'lids 79v todump the material in the scoop, B v movement ot the lever 94 past. pin 92 through rotation offrame D in "either direction, the cables 106 Will actuat'e the lids 79 toho'pen the same. vImmediately after the. ,material has been `dumped and. while the excaiatorv shovel is still rotating, fthe amr 98 ot the lever 95 willengage a pin' 91,V and which jwill pull upon a' cable 110 trained` @ver a, pulley 111 at the .excavator shovely 67, for drawing uit lids .7 9 of thefshvel'- into latche'd position. This cable 110 is of double length, being connected at the Vends of the cross arm 99 of lever 95, and having `a yieldable spring or analogous element 113 connected therein to permit of some exten. sion of the cable after the scoop lids have closed,- which will positivelyginsure the closing ofthe scoop closure members at all times. vvAs' is Athe case with lever 94, lever 95 may perform its operationI when/passing. the pin 91 from either side. It is to be noted that` .the top arm 97 of the dumping lever 9e is crimped, as to not hit any of the pins 91. This inventionv includes a novel arrangeproper time, to'"permit the righting 'of the Same into excavating position, and after 'havingexcavated va desired quantity of earth .to position the shovel for carrying the load to a desired point for dumping. This 1ar- ,rangement includes a cam lt'rackway 115v which is attached to the outer circumfer- 'ence of the adjustingJ ring 38.l Y The cam trackway 115 is of novel formation, including the upwardly inclined end portions'll and 117, and the intermediate 'straight orv horizontal runway portion 118 toward which the end portions 116- and -117 converge. lThe trackway is channel shaped and provides a groove or pocket extending longiso vment to oscillatc the shovel beam atthe i tudinally through the portions 116, 117 and 118. A novel type of lever 120.is carried by the scoop shaft 61, rigid or keyed there: to, and at its free end providing a pair of spaced rollers 122 and`123. Assuming the l shovel device or apparatus to-have disposed 'of its load, and after theI closure arranger ment 78 islatched as hereinbefore described, the moving frame will carry the shovel apparatus with the shovel 67 in its vertical position,v substantially as isjillustrated in Figure 9-of the drawin s. In this position, the' lower 'rollers 122 an 123 willbel in hori- 'zontal alignment, and therollerv 122 'Will enter the trackway portion 116, and upon further movementofthe shovel apparatus the lever 120 Will/be rocked to` slowly os cillate the shovel shaft 61. This will slow? ly turn the'shovel member 7 5 into excavating position. When the roller 122enters the grooveof'the cam trackway portion 1.18, the

lever a'v will .then be positioned substantially -as is illustrated in .Figure 4 ot the drawings, andthe shovel 67 will 'be in its excavating position substantially as is illustrated in .Figure 1 of the drawings at the- 'right hand --shovel apparatus ,E. 'i A t this point, the operator releases the winch,

mechanism, to effect the excavating opera- `tion, and after the shovel or scoop is filled zwith material, the roller 122 yWill enterthe trackway lportion 117,and the lever 120 will be slowly rocked to oscillate the scoop shaft: 6l to position thecjshovel'67 in its vertical iis carrying position,

substantially as is illusti'ated in Figure 9 of the drawings. The dumping of the material at any desired point is effected as above described. The excavating operation may be effected by rotary movement of the frame in either direction, in the one caseroller 122 willenter the cam trackway 115, as above described, and for rotation of the frame in opposite direction rollei' 123 will enter the trackway to perform the excavating action.

Referring to the winch mechanism F' for vertical control of the shovel apparatus E, a housing' 125 is carried upon an annular trackway 126 for rotation. The traclcway 126 is angle shaped in foi'n'iation and snppoi'ted in a lioiif/.ont-.il plane by the upper ends of the supporting posts 66. vproviding a horizontal runway flange 127 and an annular vertical flange 126. The extreme upper ends of the posts S6 support the annular band 129 having` a series of horizontal roller elements 130 rotatably carried thereby for-lateral stability of the housing 126 during i'otatioii thereof. The housing 125 may include the annular side wall 132, and

the floor Rollei' bearing elements '135,

may be positioned upon the runway flange 127 for supporting the housing 125 in anti- -friction manner, while bearings 137 may be X n carried by the housing for engagement with the flange 128 of the trackn'ay 126. In this manner, the housing 125 may be rotated at the upper ends of the supporting posts 86.l

in stable manne-1' to support operating de tails ofthe winch mechanism.

Any number of shovel devices Fi may be provided as above mentioned, and in connection with each shovel device, a winch drum 140 is rotatably suppoi'ted by bearings 141 within the compartment of the winch housing 125 for rotation on a horizontal axis. The drumlor winch 140 is operated by a mechanism 145 as a part of the drive means H. an-d has a cable 146 trained thei'cover for control of the shovel beam for swinging upon its universal joint 63. A super structure 147 is preferably carried by thevrinch housing 12F', rotatably snpporting a pulley 148 over which the cable 146 is-traiued directly from the winch 140. t second pulley 149 is rotatably carried at the extreme end of the superstructure 147, over which the cable 146 vis trained from the pulley 148 and extends downwardly and is trained aboutv a pulley, structure 150 swivelly carried by the swivel piece 72 at the outer end of the shovel beam 65. The cable from this point is trained rearwardly toward the superstructure 147 and is again trained over a pulley v152 rotatably carried adjacent the pulley 149. From this pulley 152 the cable is trained again toward the pulley structure 150 and. is rigidly affixed thereto in theY well known manner. By this arrangement, upon 'operation of the winch or drum 140, the cable 146 may be played out or wound, with respect to the winch 140 to lower or .elevate the beam 65 of the shovel apparatus E.

rhe prime mover G is carried upon the operating platform 85 and may be of any of the well known types, including the drive shaft 160 having the bevelled gear 161 on the free end thereof. Intermediate the bevelled gear 161 and the engine or motoi' G, a clutch mechanism 162 is provided, which may be suitably controlled by an operating lever 163. A vertical shaft arrangement is j'n'ovided, including an upper section 164 and a lower section 164". AAt the point of juncture of .the aligning shaft sections 164 and 1641', a selective clutch mechanism is positioned for drive of the shaft sections.

Up\vardly of this clutch mechanism, a bear- 164b supports the shaft 164 upon the platforin 85, s`o that the shaft 164 may extend into the winch .housing 125 for connection to winch mechanism, as will be subsequently described. 'lli'e lower shaft section 164a is rotatably supported at its upper end by a bearing 164c upon the platform 85, and has a bevelled gear 165 carried at its lower end in meshing relation with the gears'166 of a transverse shaft 167. The transverse shaft 167 is preferably in sections, carrying the gears 166, and drives the vertical relatively short shaft 168 through bevelled gear con-I nections 169. .Upon the shafts 168 spur' gears 17 0 are carried in meshing relation with the ring gear 43 of the rotatable `support-ing .frame D. The shafts 167 and 168 may be suitably journalled in any appropriate bearings in the stationary and movable supporting frames C and D, to properly stabilize the same.

Referring to the clutch mechanism at the junctures of the upper and lower shaft sections 164 and 164a respectively, thesame preferably includes bevelledV9ears 175.and. i

176 which are respectively keyed andvloosely mounted for rotation upon the shaft sections 164 and 164a; said bevelled gears being normally in meshing relation with the bevelled gear 161 of the engine drive shaft 160. AQ sleeve 175 is splined or feathered upon the lower shaft section 164", and operating intermediate the bevelled gears 175 and 176, as by a control mechanism 177. The juncture point 176 of the shaft sections 164 and 164a is preferably at a point proximate the gear 175. The'upper and lower surfaces of the splined slee've 175a are preferably provided with projections 177, ladapted for engagement in the bevelled gears 175 and 176, for connection of said gears to the splined sleeve. It is obvious that the winch shaft 164 is always driven upon operation of the engine drive 160, and

when the clutcl1..162 is in engagement to efy feet rotation of. the-gear 161,. Due to the vii" . 17 6 on the lowerfshaftsection 164% incasso rotatable mounting of 'the bevelled gear said sec-v tionv .is normally stationary when" the splined sleeve. 175is -in neutralpcsition withrcspect to the ears 175 and 176. However, if it is desired to rotate' the shaft 164a infone direction, it is merely necessary to 'shift thesplinedsleeve 17 5?, bythe control mcclianisn'i117, to engage .y the bevelled gear 175 and the shaft section 16/ifwill beconnected fori'otation with the shaft sectionv` 164. 1f it is desired tofrotate the shaft 164: in an opposite.` direction, it is merely necessary to shift the spline sleeve 17 5a into driv ing engagement with the bevelied gear 176, and the shaft 16erL will be connected for rotation With the bevelled gear 176, 'asisobvious. By means oi this structure, the Winch mechanism may be operated independent of movement of thesuppOrting frame l), and as the winch mechanism einbodies a clutch device of its own, the converse is true..V .n y l At its upper end within the compartment .of the Winch housing 125, the drive shaft section` 164 carries a bevelled gear 180,

which is adapted for meshing witha bev, ell'ed gear 181, carried by a bearing 182y Within the 4housing '125 and upon a shaft' 183. Upon the Opposite side of the bearing 182 andl upon the shaft .183, abevelled gear 184 is carried for meshing with bevelled gears'185 and 186 splined in ,any approved manner upon a vertical shaft 187 within the winch housing.

' A tubular member ors'leeve '190 is reciprocably carried by the shaft section 164, having the upper end thereof p'ivotally4 attached to an. endof a lever 192 within the winch housing. The lever 192 is 'pivotally connected intermediateitslends, as by a bearing 193, to the iioor of the housing 125 and is y connected by llevers194 and 195a to a .clutch mechanism .196 which may be 'selectively operated to key either of the gears 185 or in either direction about its axis.

' 195 is carried by the vertical shaft 187 in vte A the operator lmay slidefthe sleeve meshing relation with a worm gear 196 carried by the winch.

the driven shaft 194A ,forwinding `or* unwindino ofithe cable'll'( upon the winch 1&0,

as can be readily understood. Other Winch mechanisms may be provided within the -winch housing 145 for operation of any lll number of shovel devices E desired,it merely being necessary 'to duplicate the parts here-A in described, and substantially as vis illustrated in Figures 26, and 7 of the drawings.

'ment' is yet 'automatic in operation,

186 to the shaft 187 for the drive of the latter,v Aworm the slidable sleeve 190 is engaged by From the fore oing description of this i111- vention, itiso viousr that an excavating been provided, which while arrangeand will machine has relatively simple and compact in necessitate al minimum of attention upon the n part of an operator to efiect the various con trol actions thereof. The scoop apparatus E is substantially autoinatic'in operation and it is merely necessary for the operator to rotatethe supporting frame D from the excavating position or location, and the load will be automatically righted for carrying purposes and automatically dumped at the desired position Without action on the part of the operator. An important feature of thisinvcntion is the provision of the 'adjustable cain supporting ring 38 Whichniay be manually adjusted to adesired place of excavation, and the shovel apparatus -will be automatically controlled from its vertical carrying position to an excavating position at the desired point, necessita-ting but the attention of the operator in lowering the scoop beam toleffect the disposition ofv the dirt or other material in the scoop yor' shovel'.

'Any suitable type of vehicle propelling mechanism may be provided, and in fact it is contemplated to ldrive the vehicle from the prime mover D." The improved machine willA find universal use in connectionlwith highway construction and buildingconstruction, as the same readily adapts 4itself for working in very closev quarters.

-Various changes in the shape, size. and arrangement of partsl may be rmade to the form 'of invention herein shown and de# scribed without departingv from thespirit of the invention or the scope of the claims. I claim: l

1'. lAn excavating machine comprising Fa frame including a stationary portion'and aturntable' portion, means providing a cam way upon saidfstationary frame portion, a shaft rctatably'bearing on said turn table 'portion extending laterallyy thereof, an.v exconnected' for universal cavating shovel outer end of said shaft,

movement to the and a lever carried by said shaft including members adaptedto engage in the cam` way whereby the shaft may bef-axially Imoved for oscillation of said-*shovel into loading and carrying positions. l i

2. An excavating machine comprising a. frame including a stationary portion and a turntable portion; a mem-bar carried exteriorly of the 'stationary portion providing a `cz m wayincluding-outer upwardly inclined lguidevvays and an intermediate hori- 'Zontal 'guide way, ported by the turn extending laterally thereof,. a shovel, a shovel beam connected by a universal joint to said shaft,'and a lever rigid ivith said a. shaft rotatably suptable upwardly thereon lll ico.

' combination of a supporting chassis, an annular band carried'by said supporting chassis `rigid therewith, an outer annular band adgustably carriedby said first mentioned annular band, a turn table, anti-friction means supporting said turn table with respect to said chassis and first mentioned annular band,l a ring gear carried by said turn table axially thereof,.drive means for said ring gear, a shovel apparatus carried by .a said turn Itable extending laterally thereof for rotation on its axis, and means carried by said shovel apparatus. and-said second mentioned adjustablel ai'l'nular band forselective positioning of the shovell apparatus in loading and'load carrying fpositions.

.4. An excavating machine comprising a stationary frame, amovabl-e' frame rotatably carried by the stationary frame, a shovel device including a beam and shovel niember, a stub shaft rotatablvbearing on the movable fi'ameuniversally jointed at an end to said shovel beam, a winch mechanism upwardly of the movable frame ,including a cable extending -for connection to the shovel end of the shovel beam, a prime mover carried by the stationary frame, and means connecting the movable fiaine and winch for "drive by said prime mover.

5` An lexcavating machine comprising a stationary` frame including a supporting \plat form, posts carried by the supporting platform extending upwardly thereof, a traclrway carried b v said post upwardly of the platform. arotatable frame upon said stationary frame. a shovel device carried by the rotatable frame,- a housing rotatably carried by the trackway of. the stationary frame upwardly of the supportingY platform, a winch mechanism disposed within said housing includingr a cable for supporting the free end of the shovel device, a prime mover.' on the stationary platform, and means for connecting the prime mover and winch mein-j' ber and rotatable'platform for operation.

6. An excavatingmachine comprising a stationary frame portion. a movable frame portion, a shovel apparatus carried by said movable frame portio y"supporting posts carried by the stationary :frame portion extending upwardly above the movable frame portion, a housing i.'otatably,cairied upwardly of said supporting posts. a winch ro-v tatably disposed within said housing, cable means extending from said winch to support said shovel device at thev free end of the latter, a prime mover carried by the stationary frame, and drive means for drive of said Winch from said prime mover including a reversing mechanism.

7. An excavating machine comprising; a

y paratus into 'loa-ding and carrying positions at designated points in the movement of the shovel with respect to the frame, a Winch mechanism upwardly carried by said stationary frame portion and connecting the free end of the shovel apparatus for movement of the latter, and means for automatically releasing the load of the shovel apparatus at a designated point during movement of the shovel about the stationary frame portion.

8. A winch mechanism comprising a stationary frame portion, 4a movable frame portion, a shovel apparatus carried by the mole able frame portion including a closure'arrangement, levers carried by the shovel apparatus, a cable trainedfrom one of said levers to the closure arrangement, a latch mechanisinfor the closure arrangement, a cable trained from the second of Vsaid levers to said latch mechanism, and adjustable pins carried by the stationary frame portiofn adapted to be positioned whereby said levers may be selectively operated for releasing and closing the closure arrangement of said shovel apparatus. i

9. An excavating mechanism comprising a stationary frame, a rotatable frame carried by saidl stationary frame, an adjustable band.

carried by said stationary frame outwardly thereof, a cam way carried by said adjustable band including a continuous Way providing end upwardly inclined portions and an interf mediate substantially horizontal portion, a. shaft rotatably carried upwardly of the rotatable frame extending laterally of the adjustable band, a shove] element including closure lids, a shovel beam, a universal ioint `connecting the shovel beam to the shaftl ro-v.

tatably carried by said rotatable frame, a lever rigid with said shaft including spaced rollers at the free end thereof, adapted for selectiye riding in the cam way outwardly ofsaid adjustableband whereby the shovel.

beamniay be 'axially moved to position the shovelrin, loading and load carrying positions` awinch mechanism for vertical control of the shovel beam, levers oscillatively carried by therotatable frame, a cable trainedl from.,

one of said levers to the closure lids` fsaid shovel, a latch- Elmechanism for the closure lids of said shoveha second cable trained iai mil

from the second of said levers to said'latch mechanism, andfdetaehable pins carried-by said stationary frame for selective 'engagement with said I stationary supporting frame,

lcam Way during rotation levers to automatically conrol the closurelidof said shovel for releasing and closing of the same at predetermined points during rotation of the shovel.

l0. An excavating. machine comprising a a movable supporting frame rotatably carried on the stationary supporting frame,means providing a cam Way on said stationary frame', a shovel evice including a radially` disposed arm oscillatively bearing on the movable supporting frame, and an operating lever fixed on said arm extending laterally thereof Vand in to engage in the of'Ithe movable frame on 'the stationary 'frame' whereby to laterally tip the shovel for automatically positioning the same -in loading and 'load carrying'positions. y

An excavating machine comprising a stationaryframe, a turn table carried by the stationary frame, shovel means pivoted on the turn table, a prime mover mounted on vcluding `portions adapted 25 the stationary frame, a Winch mechanism for pivotally moving sald shovel means, means for connectlng the Winch mechanism for drive by said tatably connecting the vturn table to said prime ,mover for rotation thereby in either v direction about its-axis. Y

12. An excavating machme l.comprislng a stationary frame, a turn table, shovel I means pivoted upon the turn table, aprirne mover on the stationary frame, Winch mechanism. for pivotally moving the shovel means including a shaft, a gear fixed for l rotatably supported by the stationary frame l turn -,table,

said turn-2 on the axis of rotation of said means connecting said shaftl to table so that upon rotation of said shaftz motion will be imparted to the turn table, a gear idling on said shaft in meshing relationV With the prime mover gear, and clutch means feathered on said last mentioned shaft adapted to be selectively keyed to the idler gear of said shaft and the shaft of said Winch mechanism toefect rotation of the turn tablein either direction about its axis. A

ALBERT MAGNUS DOLL'.

prime mover, .and means ro-`

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