US2979838A - Excavating machine - Google Patents

Excavating machine Download PDF

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Publication number
US2979838A
US2979838A US801984A US80198459A US2979838A US 2979838 A US2979838 A US 2979838A US 801984 A US801984 A US 801984A US 80198459 A US80198459 A US 80198459A US 2979838 A US2979838 A US 2979838A
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US
United States
Prior art keywords
bucket
buckets
teeth
blade
ripper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US801984A
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English (en)
Inventor
David L Raymond
Harold H Hoover
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cleveland Trencher Co
Original Assignee
Cleveland Trencher Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cleveland Trencher Co filed Critical Cleveland Trencher Co
Priority to US801984A priority Critical patent/US2979838A/en
Priority to GB1402/60A priority patent/GB868663A/en
Priority to FR817240A priority patent/FR1247132A/fr
Priority to ES0255477A priority patent/ES255477A1/es
Priority to BE588945A priority patent/BE588945A/fr
Application granted granted Critical
Publication of US2979838A publication Critical patent/US2979838A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/181—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels including a conveyor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Definitions

  • EXCAVATING MACHINE NVENTORS Dnvin L. 'RM/mom: m HARM H. HoovsR ATTORNEYS trenching machine, :for greatlyincreasing the lelciency .of V l I d EXCAVATING MACHINE David L. Raymond, Dayton, Harold Hoover, Cleveland, Ohio, assignors to The Cleveland Trencher Company, Cleveland, Ohio, a corporation of Filed Mar. 23, 19579, Ser. No. 801,984 12 Claims. (Cl.
  • the aforementioned buckets generally are provided with a plurality of Vexcavator or rooter teeth projecting outwardly and forwardly therefromI for digging into the material to be excavated and facilitating its removal by the buckets. The maximum elliciency of any excavating machine is reached when the greatest amount of material is dugY in a unit of time.
  • the present 'arrangement improves theoperating characteristics of thedigging unit in hard material by helping to alleviate the pounding of the digging Vunit when operating in such hard material.
  • Another object of the invention is to provide'a trenching machine of the latter 'type Ywherein the'digger unit embodies conventional buck'etand excavator tooth structure, in combination with a novel ripper or cutter blade
  • a further object of the invention is A,to'provide a novel and-uncomplicated ripper blade arrangement-'for ⁇ use with the excavatingfbucke'ts ⁇ off-the'diggingunit of a the digging when operating'f auvel aforementionedV shale,
  • a stillfurther object of the invention is to provide a ripper or cutter blade arrangement of the latter type for use with a wheel type trenching machine for greatly increasing the operating and service-life characteristics of the digging unit of the machine when operating in hard Y material, and aiding to eliminate pounding vof the digging unit and resultant detrimental vibration of the machine proper.
  • Fig. l is a side elevation of an excavating machine embodying the instant invention.
  • Fig. 2 is a fragmentary, enlarged, side elevational view ofone of the buckets of the digging unit of the excavating machine of Fig. l.
  • Fig 3 is a front elevational view taken generally from the right hand side of Fig. 2.
  • Fig. 4 is a front elevational view of the next adjacent bucket to that shown in Figs. 2 and 3 and taken in a counterclockwise direction with respect to the digging unit as illustrated in Fig. 1. Y
  • Fig. 5 is afront elevational view of the bucket next adjacent to that of Fig. 4 and taken in counterclockwise direction as viewed vin Fig. 1. Y
  • Fig. 6 is an enlarged, side elevational view of one of the holder elements for the ripper blade arrangement of ythe instant invention with an associated ripper blade v(shown in dot-dash lines) being mounted therein.
  • Y Fig. 7 is a top plan view of the holder element illustrated in Fig. 6. a Y A Y,
  • Fig. 8 is a sideV elevational view of one embodiment of thenovel ripper blade elements of the instant'invention.
  • Fig. 9 is a top plan view of the ripper blade element illustrated in Fig. ⁇ 8.
  • e Fig. 10 is an end elevational view of another of the ripper blade elements utilized in the novel ripper blade arrangement of the instant invention wherein the blade element is bent so that when in mounted position on a bucket, the cuttingrportion thereof is disposed in a plane extendin'g'generally parallel to the plane of movement of the bucket, and asca'n be best understood from the right hand side of Figs. 4 and 5 of the drawings.
  • Fig. l1 is a fragmentary, enlarged, side elevational view
  • Fig.l 13 is an enlarged, side elevational view of one'fof l vthe holder elements for the ripper blade arrangement of Figs'. V-11 and 12, with an associated ripper blade (shown Vin dot-dash lines) being mounted therein.
  • f j Fig. 14 ⁇ is a top plan view of the holder elementillustrated in Fig. 13.
  • FIG. 15 is 'an enlarged side elevation ofv one ofthe ripper blade elements utilized in the Figs. 11 and ⁇ 1-2 arrangement, Vas taken from the right hand Yside of Fig; 12.
  • Fig.v 16 is a view generally similar to Fig.V l2, but showing a further modification of the invention.
  • l Referringagan 'to the drawings and'especially to Fig. l thereof, there isshown a trenching machine Yof the well known wheel type embodying the instant invention.
  • Such a trenching or excavating machine broadly comprises a'jmain framev 10 supported on suitable trac'- tor treads 12,'a main power plant orV internal combustion 'engine 14 supported on theforward end oftrame y110, maststructurel forfsupporting ali-vertically movable structure 18, an excavating-wheel or unit l2t) rotati d aztehtheffre'spectiverooter'fteeth 38,.,1
  • boom structure 18 is pivotally mountedwith. respect to the mast structure 16, as at. 28, for movement in a generally vertical plane, and maybe raised and lowered on mast structure 16 as by means of cablei and pulley systems 30. actuated by winding drums 32 and .'34 mounted on the.. machine frame. will be. understood of course that other structural arrangements and systems could be utilized for controlling the. movementof boom 18 and associated digging unit 20 without departing fromthe. scope of the present invention.
  • the digging unit of ⁇ the. machine is adapted to .rotate in the direction of the arrow Z in Fig. 1 so that. the forward edge of the excavatingl buckets andassociated rooter teeth Vwill engage the material. to beV excavated, scoo'prit up and then carry-it upwardly to discharge'conveyor 26.: Y
  • the excavating buckets 27 are of generally U-shaped configuration in front elevation wi'rh theA leg portions 27a thereof secured as by means of fastener elements. 36 tothe respective sides of the wheel of the digging unit and having some suitable backfup means 37 such ⁇ las in thev form of a ⁇ solid backrwall or thespaced'finger ele- V-ments illustrated, for retaining the material dug,y in the of, buckets substantially completely engage vand excavate Y thel total predetermined transverse width of the trench.
  • the buckets are illustrated in a series of three Y cent buckets, whereby the teeth of. a predetermined series f buckets designatedfby letters A, B,fand-Crespectively, q d Y l Vparallel tojthe plane-of movement oft digging unit', to
  • Each holder element in the embodiment of the invention illustrated, is of fabricated construction comprising side walls 44, and front and rear walls 46 and 48 re spectively (Figs. 6 and 7), defining there between a socket 50 for receiving therein a ripper blade 40.
  • the front and rear walls have rearwardly and downwardly sloping inner surfaces 46a andl 48a respectively adapted to engage the confronting end surfaces 52 of the ripper blade 40 and support the substantially Vupstanding blade in a. generally diagonally andfforwar'dly sloping position.
  • the side walls 44Yof the holder are provided. withV aligned openings 5-4 threinfor receiving a pinelement- 56 extending through the side walls and through a complementary opening 578 in the base of the ripper blade 40 for holding the blade in vassembled position in its socket.
  • the pin 56 may be held in assembled position by a force fit or any other suitable means.
  • Tbe ripper blades 40 are preferably formed oihardened steel or the like, and with the inner end "surfaces 60r thereof, which are adapted. for disposal in the holder elements, preferably so formed as. to engage in surfacef to-surface coaction with the confronting surface/dof the bucket when in assembled relation with the holder..
  • the outer end surface 62 of the ripper blade in the Fig. 8- embodiment is formed to extend generally parallel to theT bottom. surface thereof and thus rgenerally parallel tor the. exterior configuration of the lip portion 39 of the bucket,j and are. of generally parallelogramcong.- uration Vin side elevation in thev embodiment r illustrated. .
  • the blade elements are formed so. asYV to projectgenerally beyond. the path of movement of: the associated rooter toothy on the respective bucket,. andthus cut or intofthe hardenedjrmaterial. beingv excavated a predeermined greater amount, thanv do the roo'ter teeth,
  • ripper blades are-'positioned rearwardly'of the forward edge 64 (Fig. 2) of the respective bucket, and inwardly ofthe outer ends of the associated rooter teeth, and thus givev a substantially greater support for the buckets during the excavating. operation, to aid-.in alleviaing, pounding of the ⁇ digging unit when operating in the. aforementioned hard material, .Asfbestlshowng in Figs. 3 and lgof.
  • the ripper ⁇ blades ⁇ 4.0,' disposed, along the side portions of tbebuckets, are bent intermediate their ends, a predetermined amount, as: at 6,5-..and above the opening 58.- therethrough, Vso, to maintain. the cutting portions thereof in planes generally thereby aid, in. preventing inadvertent Vfracture iof; the blade s'.-and providinga longerservice life therefor.v
  • the.Y cutter bladesA 40. haveA a bi-planar configuration as opposedtto theY planar configurationi of blades
  • the ripper blades are'preferablyV solpositioned on their associatedv buckets so, that 1 they arei generally aligned in,a longitudinal.. direction with.
  • eacht bucket 27-v is provided lwith ⁇ a -plurality of ripper: blades v,40 sete'dgewise and. mounted around Athe exterior of the respective buckets, for cutting or slicing into -hard material: prior Y toengagement of the material byftheA ,rooter teeth Qnthe following bucket, to facilitate the digging of the material fromthe trench.
  • ripperblades on.-thepreceeding bucket This-can be best seen from Figs. 3 to 5 of the drawings.
  • the ripper blades.' on bucket A are'positioned so as t'o be generally longitudinallyi aligned with the rooter teethV 3,8 .on 'follow ingbucket. B, as ⁇ taken in..a fcounterclockwisedirection inFig 1...'and the ripper bladeston, bucket B. (Fig. ⁇ d) are disposed in general'VV alignment with therooter teeth onbucket C (Fig.
  • the ripper blades are of relatively thin, hardened, plate-like material, they readily cut or score into the hard material to be excavated with relatively little fresistance, and greatly expedite the digging of the trench. If the ripper blades become undulyfworn after long service or inadvertently fracture infoperation', they'can be readily replaced by removal of the connecting pins 56 from their, respective holders.
  • the holder elements 70 are secured by any suitable means, such as welds, to the outer surface 71 of an arcuate-like elongated strap element 72, which in turn is mounted or secured by anysuitable means, such as welding, to the periphery of the bucket, so thatthe under surface 73 of the strap element is disposed in"confronting relation with the exterior ofthe bucket.
  • the strap element 72 and attached holder elements 70 are mounted further rearwardly on the associated bucket as compared ⁇ to the first embodiment of the invention and thus give even greater support to the digging unitwhen operating in hard material to alleviate pounding and associated vibration in the machine.
  • the holder elements in this embodiment may include a bottom wall portion 74V which serves to reduce the length of the associated ripper blade 76 for a predetermined magnitude of projection above the associated rooter teeth 38 on the bucket.
  • the front and rear wall portions 78 ⁇ and 78a, of the Figs. 13 and 14 holder 70, are also ⁇ recessed within the side wall portions 44, as opposed to the lirst described embodiment wherein the front and rear walls projected outwardly from the side walls thereof.
  • the outer end surface 80 of the ripper blade in this embodiment is sloped downwardly in a rearward direction as compared to the inner end surface 80u thereof, to provide va sharper leading point 82 for the cutter blades when in' mounted positionV on the rearward 'end of the associated bucket.
  • Spacer elements 84 may be utilized to provide for the parallelV plane relationship.
  • the central or uppermost of the holder elements 70 are preferably spaced from the forward .orf leading edge 86 ⁇ of the associated ⁇ strap, while the lower or outermost holder elements disposed more along the sides of the bucket, are positioned substantially 'llush with such forwardedge 86 of strap 72, to Vprovide a ⁇ longitudinally off-set. arrangement.
  • the Figs. 11 10,115.. arrangement is generally similar to the first described .embodiment ofthe invention.
  • Fig. 16 shows a further modification of the invention Vwherein the holder elements 70 are secured to the outer embodiment of the invention or may be of the bent typ'e of ripper blade as illustrated in Fig. l0 of the first described embodiment of the invention whichever is deemed most desirable for the material to be excavated.
  • the Fig. 16 arrangement provides a unitary sub-assembly which can readily be mounted on or removedfroma bucket and in'a similar manner as aforedescribedl in connection vwith the Figs. 1l to 15 embodiment.
  • v 'f A suitable materialfor the cutter blades of the invention has been found'to be :Ms inch, 1060 to 1080 steel plate, heat treated to Rockwell, C, 50-55 hardness, but
  • the instant invention provides Yan vexcavating or trenching machine with an Vimproved digging unit particularly adapted for use in hard .types of material, such as shale, coral, sandstone and the like, and embodying slicer means which greatly increases the eiciency of the digging unit and helps to alleviate the pounding.1 of the digging unit, when operating in such hard material, thereby greatly increasing the service life and useability of the machine.
  • a mobiletrench excavating machine having a movable continuous digging unit including a plurality of excavating buckets with rooter teeth mounted on' the leading' edges of said buckets, the rooter teeth on said buckets being so arranged that the rooter teeth on one bucket are spaced laterally of the rooter teeth on the next following bucket so that substantially the entire transverse width offthetrench to be excavated will be engaged by footer teeth on a predetermined series of buckets, the combination therewith of scarifier blade means mounted on said unit and projecting outwardly therefrom, each of said buckets having a predetermined number of said blademeans associated therewith, the blade means associated with ⁇ a respective bucket being offset laterally with respect to oney another and with respect to the rooter teeth on the respective bucket and being generally aligned in a ⁇ direction longitudinally of said digging unit with the rooter teeth on the next following bucket, said blade means being adapted to score material to be excavated and facilitate its removal from the trench by said digging unit. 2'.
  • said digging unit including a plurality of excavating buckets secured -to the periphery of said unit andV having ⁇ rooteriteet'h secured to *the leading edges of'said buckets and projecting forwardly therefrom, the rooter teeth on said buckets being so arranged that the rooter teeth on one bucket are spaced laterally lof vthe rooter ⁇ teeth onk i
  • a mobile trench s thenext followingbuck'et so that substantially the entire transverse width of the trench to b e excavated will be f movable continucusdiggins unit including a plurality-Y et engaged'by the rooter teethV on 'a1 predetermined series of of the digging unit with the rooter teeth on the following v 3.
  • a cutter blade sub-assembly adapted for mounting as a unit and in transversely extending relation on the exterior of a toothed excavating bucket of Va multi-bucket digging unit of a mobile excavating machine, said Vvsubassembly comprising a strap-like mounting member hav- Ying an under surface on one side thereof adapted to, be
  • each of said holder members being spaced vpredetermined amounts ⁇ laterally of the next adjacent of said holder members, each of said holder members having. an outwardly facing socketV therein, a scarificr blade Velement set in each of said sockets, and means extending into said socket and coacting between each holder membei" and the respective blade element for detachably securing the blade elements in their respective sockets, said means being removable from the respective socket to permit removal of the respective blade element while leaving the respective holder member in secured relation on said mounting member,
  • a mobile trench excavating machine having a movable continuous digging unit including a plurality of excavating buckets with rooter teeth mounted on the leading edges of said buckets, the rooter teeth on said buckets being so arranged that ⁇ the footer teeth on one bucket are vspaced laterally of the rooter teeth oni the excavating buckets with meter teeth, mcuuted 10u. the leadingr .edges afraid buckets, the meter YteethV cusad buckets being; scl arranged that'.
  • the frocterfteeth Y 911; 011e bucket are spaced laterally of-tl1eroote r teeth/jon the next following bucket so that cubstautallvthe gentire transverse widthv cf the trench te be' eteevetest -witl be engaged by the meter teeth cna predetermined Series 0f buckets, a pluralityv of scarier blade sub-assemblies mounted on the exterior of saidj digging unit,A each of said buckets having oneof said sub-assembliesrmounted thereon, each subezassembly comprising a mounting.
  • each of said lbuckets is of arcuate exterior'conguration in transverse vertical sec- .tion and wherein each of said bladesis of generally elongated construction includingjnner and -outcr ends, the ,blades disposed .along the ⁇ side portions of ⁇ airespectivc bucket beingbent intcrrnediatefsaid inner and Youte'rendrs generally .transversefofthe respective blade,v so as to presenty a bi-planar configuration in front elevation, with the outer pOrtion ,of-cachof: said bent blades Vbeing dis transverse width of the trench toy bef'e'xcavatedrwill b e engagediby .the rooter teeth on a predetermined series'of buckets, the combination therewith of Ya plurality of scarifer blade sub-assemblies mounted on the exterior of wardly from said surface, said bladeecêt

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
US801984A 1959-03-23 1959-03-23 Excavating machine Expired - Lifetime US2979838A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US801984A US2979838A (en) 1959-03-23 1959-03-23 Excavating machine
GB1402/60A GB868663A (en) 1959-03-23 1960-01-14 Improvements relating to mobile trench excavating machines
FR817240A FR1247132A (fr) 1959-03-23 1960-02-01 Machine excavatrice
ES0255477A ES255477A1 (es) 1959-03-23 1960-02-02 Perfeccionamientos en maquinas excavadoras
BE588945A BE588945A (fr) 1959-03-23 1960-03-23 Excavatrice.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US801984A US2979838A (en) 1959-03-23 1959-03-23 Excavating machine

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US2979838A true US2979838A (en) 1961-04-18

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US801984A Expired - Lifetime US2979838A (en) 1959-03-23 1959-03-23 Excavating machine

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US (1) US2979838A (fr)
BE (1) BE588945A (fr)
ES (1) ES255477A1 (fr)
FR (1) FR1247132A (fr)
GB (1) GB868663A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958347A (en) * 1974-07-11 1976-05-25 Leroy Marvin Heitman Drain ditch digging attachment for a back-hoe
US4050170A (en) * 1976-02-17 1977-09-27 Norman P. Proehl Dredge cutter head
US4616433A (en) * 1985-02-12 1986-10-14 Caterpillar Inc. Ripping bucket arrangement
WO1991009181A1 (fr) * 1989-12-13 1991-06-27 O&K Orenstein & Koppel Ag Dent trainante pour roues coupantes
WO2014139927A2 (fr) * 2013-03-11 2014-09-18 Thyssenkrupp Industrial Solutions Ag Roue à palettes destinée au démontage de matériaux d'un assemblage de matériaux présentant en particulier une dureté élevée
DE102019214626A1 (de) * 2019-09-25 2020-09-24 Thyssenkrupp Ag Vorrichtung und Verfahren zur Optimierung von Abbauvorgängen sowie Verwendung und Computerprogrammprodukt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438124A1 (fr) * 1978-10-04 1980-04-30 Barre Marcel Pelleteur-excavateur

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US59140A (en) * 1866-10-23 Improved ditching-machine
US101112A (en) * 1870-03-22 Improvement in steam ditching-machines
US208893A (en) * 1878-10-15 Improvement in excavating-machines
US229730A (en) * 1880-07-06 Dredging-machine
US263994A (en) * 1882-09-05 Harrow
US708753A (en) * 1901-12-06 1902-09-09 Henry G Butler Dredging-scoop.
US908317A (en) * 1908-02-25 1908-12-29 Joseph Organ Excavating-machine.
US993785A (en) * 1910-08-15 1911-05-30 Richard P Mccormick Excavator.
US1113952A (en) * 1913-08-02 1914-10-20 John T Pierson Trench-digging machine.
US1184238A (en) * 1914-12-26 1916-05-23 Charles M Hickey Traction ditching-machine.
US1467828A (en) * 1919-09-15 1923-09-11 F C Austin Machinery Company Machine for making ditches
US1480277A (en) * 1924-01-08 A corporatton
US1802106A (en) * 1930-01-02 1931-04-21 George Haiss Mfg Co Inc Conveyer bucket
US2114129A (en) * 1935-10-28 1938-04-12 Electric Steel Foundry Co Dredge bucket
US2699327A (en) * 1949-10-19 1955-01-11 Goodman Mfg Co Mining head for cutting and dislodging coal

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1480277A (en) * 1924-01-08 A corporatton
US101112A (en) * 1870-03-22 Improvement in steam ditching-machines
US208893A (en) * 1878-10-15 Improvement in excavating-machines
US229730A (en) * 1880-07-06 Dredging-machine
US263994A (en) * 1882-09-05 Harrow
US59140A (en) * 1866-10-23 Improved ditching-machine
US708753A (en) * 1901-12-06 1902-09-09 Henry G Butler Dredging-scoop.
US908317A (en) * 1908-02-25 1908-12-29 Joseph Organ Excavating-machine.
US993785A (en) * 1910-08-15 1911-05-30 Richard P Mccormick Excavator.
US1113952A (en) * 1913-08-02 1914-10-20 John T Pierson Trench-digging machine.
US1184238A (en) * 1914-12-26 1916-05-23 Charles M Hickey Traction ditching-machine.
US1467828A (en) * 1919-09-15 1923-09-11 F C Austin Machinery Company Machine for making ditches
US1802106A (en) * 1930-01-02 1931-04-21 George Haiss Mfg Co Inc Conveyer bucket
US2114129A (en) * 1935-10-28 1938-04-12 Electric Steel Foundry Co Dredge bucket
US2699327A (en) * 1949-10-19 1955-01-11 Goodman Mfg Co Mining head for cutting and dislodging coal

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958347A (en) * 1974-07-11 1976-05-25 Leroy Marvin Heitman Drain ditch digging attachment for a back-hoe
US4050170A (en) * 1976-02-17 1977-09-27 Norman P. Proehl Dredge cutter head
US4616433A (en) * 1985-02-12 1986-10-14 Caterpillar Inc. Ripping bucket arrangement
WO1991009181A1 (fr) * 1989-12-13 1991-06-27 O&K Orenstein & Koppel Ag Dent trainante pour roues coupantes
AU633615B2 (en) * 1989-12-13 1993-02-04 O & K Orenstein & Koppel A.G. Traction tooth for cutting wheels
WO2014139927A2 (fr) * 2013-03-11 2014-09-18 Thyssenkrupp Industrial Solutions Ag Roue à palettes destinée au démontage de matériaux d'un assemblage de matériaux présentant en particulier une dureté élevée
WO2014139927A3 (fr) * 2013-03-11 2014-11-20 Thyssenkrupp Industrial Solutions Ag Roue à palettes destinée au démontage de matériaux d'un assemblage de matériaux présentant en particulier une dureté élevée
CN105008621A (zh) * 2013-03-11 2015-10-28 蒂森克虏伯工业解决方案股份公司 用于从特别是高硬度的材料混合体移除材料的斗轮
CN105008621B (zh) * 2013-03-11 2017-11-14 蒂森克虏伯工业解决方案股份公司 用于从特别是高硬度的材料混合体移除材料的斗轮
AU2014230973B2 (en) * 2013-03-11 2018-07-26 Koch Solutions Gmbh Bucket wheel for removing materials from a material composite, particularly of high hardness
EA030626B1 (ru) * 2013-03-11 2018-09-28 Тюссенкрупп Индастриал Солюшнс Аг Ковшовое колесо для выемки грунтов из грунтового массива, в частности высокой твердости
DE102019214626A1 (de) * 2019-09-25 2020-09-24 Thyssenkrupp Ag Vorrichtung und Verfahren zur Optimierung von Abbauvorgängen sowie Verwendung und Computerprogrammprodukt

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Publication number Publication date
ES255477A1 (es) 1960-04-01
FR1247132A (fr) 1960-11-25
BE588945A (fr) 1960-07-18
GB868663A (en) 1961-05-25

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