US1454781A - Excavating machine - Google Patents

Description

May 8,. 192-3.

R. E. WILT EXGAVATING MACHINE 3 Sheets-Sheet 1,

Filed April 5 19 21 memes ay 8, 1923;

-' ROY E. win, or ABCANIIIMQOHIO. I

Men? EXGAVATING MACHINE.

Application filed April 5,

To all whom z'tmidy concern:

Be it'known that I, RoY E, Wm, acitizen of the United States, residing at Arcanum, in-the county of Darke, State of Ohio, have invented, a new and useful Excavating Machine; and I do hereby declare the following to be a full, clear, and exact description. of the invention, such as willenable others-skilled in theart to which it appertainsl to make and use the same The invention relates to excavating machines of the pivoted boom type, and has for itsobject to-provide a machine of this'character wherein a traveler is mounted in the boom, which traveler is longitudinally movaable and controlled by a cable, and isprovided with a downwardly'extending'digging element, the angle of which digging element the machine through the i'scontrollable from a point on the frame of pivotal point of the mast and the boom.

A further object is. to provide an excavating machine of the boom type, on which boom a traveler is movable andprovided with a digging element underslung in relation to the boom, said boom being univer- Q through the lower pivotal point of the mast,

sally connected toth'e mast of the machine,

A further object is to provide a ,univer sal connection between the boom and mast, said connection comp-rislng a U-shaped q member pivoted horizontally to the mast and adapted to move in a vertical plane,

the outergend of said U-shaped member terminating in a boss, on. which boss is pivotally mounted the rear end of the boom, said boom being so pivoted that it will pivot in 4 a vertical plane transversely. Also to provide a brake band cooperating with the rear end of the boom for holding said boom against pivotal action if so desired; Also to provide means comprising gearing and shafting for transmitting poweriipwardly "on each side of the boom,

transversely vdisposed v outwardly through the-pivotal points of: the I boom and thence outwardly, over shaftin to a traveler which is d thence downwardly cable controlled, .a'n

manipulating .thedigging element.

for -.controlling and A A further object'is-to provide in combination with a; boom a traveler movable on said -bo'om', said traveler comprising spaced plates disposed pivotally mounted on downwardly extend mg IlglCl arms, ashaft having gears at its ends extending through sitely extending arms carried by the ends of said shaft and having link connections with the digging element in such a manner as to form a parallel movement, a shaft 1 extending through the plates" and disposed above the boom, the

ends of said last named Shaft being the plates, 'oppoprovided with gears meshing Wlth tll first mentioned gearsand 'formof an excavating machine, I

a-dig'ging element.

ing means for varying the, angle of the dig-i;

glIIQ element.- nally disposed shaft rotatably mounted in bearings carried by tudinally disposed ys aft, having :a worm Also to provide a 'longitudithe-boom said longi I slidablyfl mounted thereon, which worm meshes with a worm .gear carried by the the boom, andby means nally'disposed shaft t e angle of the digging element may be varied during the longitudinal movement of digging element.

With the above andother obiectsin View the invention resides in the combination and arrangement of parts as hereinafter set shaft located above of which longitudithe traveler and theforth, shown in the drawings, described and claimed, 'it being "understood that changes in theprecise embodiment of the invention may be made within the scope of what is claimed without,departing from-the spirit of,the invention. 7 I w In the drawings Figure 1 IS a side elevation ofthe excavating machine.

taken on line 2-2 of Figure l Figure 3 is a sectional view taken on line 3-3 of Figure 1, showing the boom and traveler in top plan.

Figure 4 1s a ve-rtlcal sectional view-taken -on line 4-4 of Figure 1;

. Figure 5 taken on line 5-5 of Figure 1'.

1s a horizontal sectional view/ Figure 2 is a horizontal sectional view Figure 6'i s a detail perspective view-of v the rear end of the boom, showing the brake band for locking the boom against pivotal action.

Figure 7 is a detail sectional View. vertically through the lower end of the -mast,.

mast 6 is formed from spaced bars which are integrally joined at their upper ends and terminate in a reduced cylindrical portion 7 which has a bearing in the mast cap 8, the mast being adapted to be pivoted in its bearings 4 and the bearing of the cap .8. Secured to the mast 6 adjacent its lower end is a horizontally disposed turntable 9, around which turntable a cablewlO extends,

said cable extending rearwardly and over a drum 11, wh ch drumas rotated from the main drive shaft 12 through the medium of the gears 13, shaft 14 and shiftable clutch 15, and by means of which clutch the direction of rotation of the drum l1 maybe changed as desired. A brake 16 of the band type is utilized for cooperating with the drum 11 for holding the same against rotation after the mast has been rotated to the direction position. The main drive shaft 12 is driven by a conventional form of steam engine 17, which gets its source of power from a boiler 18, said engine a and boiler is on the platform 1, preferably adjacent its rear end, however it is to be understood that the controlling mechanism for the various cables may be of any construction and located any place desired on the platform 1 and that the particular positioning of the various drums and the particular construction of said drums and, controlling mechanism is primarily for the purposes of -illustration, of controlling means for the cables hereinafter set forth.

Extending transversely through thesmast' 6 is a shaft l9, to the outer ends of which I shaft are pivotally connected the arms 20 of a U-shaped yoke 21. The end of the U-shaped yoke 21 is provided with a cylindrical boss 22, which is disposed in the aperture 23 of the rear end .24 of the boom 25. The boom 25 is pivoted on the cylindrical boss 22 in such a manner that it will pivot on its axis, and at a'right angle to the pivotal movement of the yoke 21, therefore a universal pivotal action is obtained for the boom, the purpose of which will presently appear. However at times it is desirable to lock the boom 25 against axial pivotal movelever 29 is provided, which lever is pivotally mounted as at 30 on the' side of the yoke .21 and hasits end pivotally connected at 31 to the band 26. It will be seen that when the lever 29 is rocked that the brakeband 26 will be, forced into or out of engagement with the segmentally shaped portion 28 for holding or releasing the boom 25. The pivotedlever 29 may be held in various positions by any of the notches of the rack bar 32 carried by the side of one of the arms 20 of theyol-ie 21 Longitudinally movable on the boom 25 is a traveler 33, which traveler comprises spaced plates 34 disposed to theoutside of the sidesof the boom 25, said'plate's being connected together by transversely disposed shafts 55, on which shafts are mounted flanged rollers 36, which rollers engage the upper surfaces of the side bars of the boom 25 in such a manner that the traveler 33 may move longitudinally in either direc= tion on the boom 25. Disposedbeneath the side rails of the boom 25 and pivotally mounted on shafts 37 carried by the plates 34 are rollers 88, which rollers engage theunderside of the boom and prevent tilting of the traveler as a whole. during its longitudinalmovement. It will be seen that the traveler as a whole is roller supported and that it will easily move longitudinally 0n the boom during an excavating operation. Extending transversely through the plates 34 and disposed below the boom 25 is a shaft 39. which shaft is provided adjacent its ends with gears 40 which mesh with gears 41 carried by the ,ends of the shaft 42 which extends through the plates 34 at a point above the beam 25. It will be seen that when the shaft 42 is rotated that thegears 4O willalso rotate and consequently the shaft 39 located beneath the boom will be rocked 39 are bars'41, the arms of wh'ich extend in opposite direction and have pivoted to their ion ends as at 42 downwardly extending links 43, the lower ends of which are pivotally connected as at 44 to a digging shovel 45. The pivotalpoints 44 and the pivotal points 42 are of equ'al distance with relation to each other thereby forming a parallel movement which will maintain the bars 41 in parallel relation to the shovel 45 at all times, thereby allowing positioning of the shovel in a horizontal plane for taking a small cut off the road, and also allowing the forward cutting edge of the shovel to be positioned for a diggmg operation or in a position where it willlcut way from the The shovel 45 is pivotally mounted at '46 on downwardly. extending 'rigid arms 47 of the traveler, and on which arms the 5 shovel. pivots at all times. Rotatably mount- 'f'jd in bearings 48 of brackets extending upwardly from the" boom 25 is a '-.sha ft" 49,

on. which shaft is'KSIidabIy keyeda -wormj 50;

I .-The worm 5O meshes with-a worm gear. 51. 10'.

carried by the shaft 42. It 'willbeseen that "when the shaft 49 .r'otateslthatthe'fworm 5Q will alsoflrotate vand rotate; theshaft 42 through thej-worm'gear'51; Whe'nthisac tion takes place the arms of the bars 41? 15 are rocked. and consequently the yShovel fis tiltedac'cording -to the rotation of the shaft 49 and the digging shovel controlled. in its pivotal movement in a longitudinal vertical. plane; By s'lidablykeyingthejvorm 50 on. the'shaft' 49 it will be seen that as the traveler 33 -moveslongitudinally, in either direction that the worm 50 will also ,move longitudinally on the-shaft 49 and will at all'times be in a position where it will operate the digging' rnechanism,

which cable extends outwardly and over ;a "pulley 52 and thence upwardly and rearwardly over a pulley 53. and .has'its free end 54 extendingaround a drum 55, said cable then extends upwardly as at 56.and

I direction of themachine-by the cable end connected to the bail 60 and the traveler as a whole is moved outwardly in the, di-

end of the cable which passes over the pulley 52 and is .connected as .at 51 to the shaft 35.' It will be seen that the traveler and the digger" is under control of the op-' erator at all times during the digging operation and that a thin cut or a'heavy cut may be taken from the road bed as desired. Also the machine may be usedfor ditching purposes.

The boom 25' is lowered and raised during a digging operation through the medium of the block and fall 63, the lead end of the rope of which is designated .by the numeral 64 and extends overa pulley 65 carried by the mast 6, said lead end extending downwardly and passes around the clutch controlled drum 65 which is alsooperated from the maindrive shaft 12 throughthe' medium of the bevel g'ears66. During a digging and hoisting operation the boom 25 Connected to the 'shaft37 is a cable 51*,-

rection of the end of the boom by the other tion'jsothe ground Theboom may also be" raised during the dumping operation which dumpingoperationx is accomplishedby ex- -trem'e itil-ftingfof -theshovel, -45. i .lx'jThe if ner'endof'thesh' ft 49is provided I a. Qgait 67 .which .gear is located. ad-- jacent 't'he- Segmental ortion 28. of the end 24of' theghoom 2.5. '7

ar 67lmeshes; with" ground." may b e'f rai sed or lowered as. desired for properly positioning'the shovel 25 in rela-..-

a gear. 68- carried byashaft 6 9, whiohf-shaft;

is rotatablymounted in abea'ring 70 of the 3i cylindrical extension 22' of the yoke-'21.- "It {will-be seen that the shaft69is axially dis-v 4 posed infrela'tioii. to-"the pivotal point-of the'boom 25 and consequently the gearI-(ST willm'oveon the 'properarc during the'piv;

otal action-ofthe boom'fthereby-=preventing. f bindingofthe gears 67:. and 68 during the I 1 pivotal action ofthe boom. Shaft.69xex'--.

tends rearwardly and is provided with a .bevel gear-71,. which-meshes with a'lbevel.

gear 72 carried by the shaft 19. Mounted on l the platform '1- are brackets 73, and'i'nbear ings of which the pintle's'of the sprockets with the m'a'st 6-is atran sversely disposed shaft 75 which .'-is providedwith a sprocket 76 and around said sprocket 76 and, the sprocket 74, a chain 77 extends through themediu-m of said 'chain the shaft- .75 is'.

rotated. However it is to be understood that 1- thechain maybe eliminated and shaft driv-f -ing' mechanism'substituted'therefon. EX- T tending vertically through the reduced 'por' tion 5 of'the mast 6I-isa verticallydisposed"- shaft 78. The upper end of the-shaft/ZSI r is provided with a .bev'el gear 79. which meshes withthebevel gear 72 -w-hile the 174 are rotatably mounted. Disposed beneath I the platform 1 and preferably in alignment'.

lower end of the shaft 78 is providedwith I a bevel gear 80,W.hi'ch. meshes with a bevel= I gear 81 carried by the transverselydisposed' shaft 75. sprocket-74 is rotated that. shaft 75', 'vertif It will .be seen. that. wh

10: Cally disposd' shaft transversely. "dis-" 2' posed shaft 19, shaft- 69 and 49' \vill b 'tatedthereby allowing the'operator'to con.-

' trol. the digging element in its movement from a point adjacent the rear end, of the" platform l in such a manner that the op'erajtion. is positive and substantially by; mech-' anism wherein the poweristransmitted through the pivotal connectionsfof the mast i with the platform and theboom'with'the mast. One of the pintles of the sprocket 74 1 .1

is provided with a beveled 'gear 82',- with 4 which beveled gear the gears 83 ofa shift, able clutch meniber 74 maybe meshed hereby .a, rotation in. either direction may 'be direction of rotation. of the shaft; 49.-The

imparted to the shaft'.75 for reversing the clutch member" 84: is slidably. keyed on -'a shaft 85 which shaft has a beveled gear. no

connection ,86;wit'h the main drive shaft mounted (in the The invention having been set forth What is claimed as new and useful is:-

I. In a device of the class described, the combination 'w'itha boom, of-a traveler longitudinally movable on said boom, said .traveler having a shaft rotatably mounted angles thereto, a worm slidably keyed on said shaft disposed above the upper shaft and meshing with the centrally disposed 5 gear of the upper shaft and forming means for operating the gear connections between the upper andlower sh its and varying the position of the digging sho'v'elth'rough the parallel connections.-

2. The combination with a traveler mount ed on a boom of an excavating machine, of a digging shovel carried by said traveler, downwardly extending arms carried by the traveler, said digging shovel being pivotallydownwardly extend ng n arms, mechanism carried by. the traveler whereby the digging shovel may be controlled in its pivotal movement in a longitudinal vertical plane, andlink connections between the digging shovel controllingmech anism and the digging shovel.

3. In a device of the class described, the

combination with a traveler mounted on a boom, of a digging shovel carried by said traveler, downwardly extending arms carried by the traveler, said digging shovel being pivotally mounted on the downwardly extending arms, ashaft extending through the traveler and disposed above the boom, a shaft extending through the traveler and disposed below the boom gear connections between said shafts, oppositely extending arms carried by the ends of the shaft below the boom, parallel link connections between the end'sof the oppositely extending arms and the ends of the digging shovel and shaft and gear connections whereby said parallel link connections may be controlled from a remote point and the digging shovel piv; otally moved in a longitudinal vertical plane.

4. The combination with an excavating machine comprising a boom carried by a 'mast, of a traveler carried digging element longitudinally movable on the boom, said boom comprising two aligned sections, a pivotal connection between the boom sections element. of the traveler being disposed be-" ivoted section thereof, said pivotal connection of the boom low the boom and on the fromaligned sections extending outwardly,

from the mast, a traveler movable 0n the boom, a downwardly extending digging element carried by the traveler and disposed beneath the boom, of a pivotal connection between the boom sections and spaced from the ends of the boom and forming means whereby said digging element will maintain its relative vertical relation to the boom at all tunes by axial movement of the outer boom section.

6. The combination with an excavatingmachine comprising a mast, a boom pivoted to the mast and movable in a vertical plane,

said boom being formed from pivotally connectedaligned sections, said boom having a traveler mounted thereon, a downwardly extending digging element carried by the traveler and disposed below the boom, said pivotal connection in the boom being spaced from its ends, means carried by the traveler for controlling the digging element and means for controlling the last named controlling meansfrgm a remotepoint.

7Q The combination with an excavating said mast and movable in a vertical plane, said boonrhaving a traveler mounted thereon, a digging element carried by the traveler and located below the boom, said boom being formed from aligned sections, of a piv otal connection between the boom sections and forming means whereby the weight of the digging element will cause pivotal movement of the outer boom section axially on which the digging element is disposed and the digging element maintained in the same vertical plane during its operation, controllable mechanism carried by the traveler for controlling the digging element and means whereby power is transmitted to the controllable mechanism through the pivotal connection of the boom sections.

8. The combination'with an excavating machine having a vertically disposed pivoted mast, a boom pivoted to the mast and movable in a vertical plane, said boom being formed from aligned sections, a traveler mounted on the boom and movable on the outer s ction, a digging element carried by the traveler and longitudinally movable therewith and extending downwardly below the boom, of a pivotal connection between the boom sections and forming means whereby the digging element will maintain a vertical position by gravity by an axial movement of the outer boom section, cable means for movmachine having a mast, a boom pivoted to ing the traveler longitudinally in either direction, controlling mechanism carried by the traveler forv controlling the digging element carried thereby, shaft and gear connections whereby power may be imparted to the digger controlling mechanism of the traveler from the body of the machine, said gear and shaft connections transmitting power through the pivotal points of the pivoted 10 mast and the pivotal connection of the boom to the traveler When said traveler is in various longitudinal positions.

In testimony whereof I have signed my name'to this specification in the two subscribing witnesses.

Witnesses:

BLANCHE DECKER, Jol n STENTZEL.

presence of a ROY E. WILT.

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