US3791054A - Lip construction for bucketwheel excavators - Google Patents

Lip construction for bucketwheel excavators Download PDF

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Publication number
US3791054A
US3791054A US00263336A US3791054DA US3791054A US 3791054 A US3791054 A US 3791054A US 00263336 A US00263336 A US 00263336A US 3791054D A US3791054D A US 3791054DA US 3791054 A US3791054 A US 3791054A
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United States
Prior art keywords
central portion
teeth
lip
forward edge
tooth
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Expired - Lifetime
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US00263336A
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English (en)
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S Bierwith
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Great Canadian Oil Sands Ltd
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Great Canadian Oil Sands Ltd
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    • 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
    • E02F9/2808—Teeth
    • 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

  • a lip for an excavating bucket has a row of sockets in each of which a respective excavating tooth is mounted, the center of the lip being relieved (i.e., offset with respect to the corners thereof) in two mutually perpendicular planes, such that the corner teeth do the initial excavating without interference from the center teeth, in both forward and lateral movements of the bucket.
  • the combination of the shorter teeth used in the center of the lip plus the relief mentioned causes the comer teeth to engage the working face in advance of the other teeth, in both forward and lateral bucket movements.
  • An object of this invention is to provide a novel toothed lip for bucketwheel excavators.
  • Another object is to provide a bucket lip configuration which markedly reduces the driving power required, as compared to prior configurations.
  • a further object is to provide a bucket lip construction which results in a greatly increased digging efficiency, as compared to known constructions.
  • one procedure which may be followed is to slue the buckets across the face of the work (i.e., to move them laterally or sideways across the working face), to thereby take a substantially horizontal cut of the sands.
  • a still further object of this invention is to provide a bucket lip construction which is particularly suitable for the slue-mining of tar sands.
  • An additional object is to provide a bucket lip configuration which gives highly effective and efficient digging action when used for the slue-mining of tar sands.
  • a tooth-mounting bucket lip has a variable profile, formed by the relieving of the center of the lip in both planes.
  • the lip member is of generally U-shaped configuration, viewed head-on or looking into the bucket, and is skewed rearwardly at its two opposite ends.
  • the end face of the member has therein a plurality of sockets for individually receiving the shanks of chisel-shaped excavating teeth, and the member is provided with means for removably securing the teeth in position in their respective sockets.
  • FIG. 1 is a fragmentary, diagrammatic side elevation, partly broken away, of a rotary excavator (bucketwheel) having buckets and excavating teeth attached;
  • FIG. 2 is a front elevational view of one of the buckets of FIG. I, looking in the direction 2-2 of FIG. 1;
  • FIG. 3 is a side view of an excavating bucket lip according to this invention, prior to mounting thereof on a wheel;
  • FIG. 4 is an end-on view of the bucket lip of FIG. 3, in a direction looking onto the bucket;
  • FIG. 5 is a plan or top view of the bucket of this invention.
  • FIG. 6 is an exploded view of a tooth retaining pin
  • FIG. 7 is a fragmentary cross-section on a small scale, taken on line 7-7 of FIG. 4;
  • FIG. 8 is a fragmentary cross-section taken on line 88 of FIG. 5.
  • a portion of a typical rotary excavator or digger is indicated at 1.
  • the wheel 1 is rotated in the direction 2 (counterclockwise in FIG. 1 and is arranged to advance toward the work 3 being mined or excavated, which work is disposed generally vertically with respect to the wheel 1.
  • the wheel 1 may be moved laterally or sideways across the face of the work, in the direction of the arrows 4 (FIG. 2), in order to take' a substantially horizontal cut of the work. This is to say, the bucketwheel 1 may be slued back and forth across the work.
  • the bucketwheel 1 has mounted thereon peripherally disposed spaced apart excavating buckets 5. These buckets each have a chain-type wall 6 and a lip denoted generally by numeral 7, to be described in detail hereinafter. Mounted on the front edge of lip 7 are spaced apart excavating teeth generally indicated at 8. At each end of the generally U-shaped lip 7, there is a respective integral tongue-like plate 9 by means of which the ends of the lip are rigidly secured to respective opposite faces of the wheel 1.
  • the wall 6 (see FIG. 2) is formed of a plurality of closely-spaced, parallel lengths of link chain, one end of each length of chain being secured to the rear edge of lip 7 and the other end of each length of chain being secured to a cross-member 10 which extends between the pair of tongue plates 9.
  • the lip 7 is a thick, heavy member (sufficiently rigid to resist the substantial stresses applied thereto during excavating operations) of generally U-shaped configuration viewed end-on from the work-engaging side of the lip, as in FIG. 4. As an indication of size, the horizontal dimension at the top of FIG. 4, across the tongues 9 and between the outer edges thereof, may be about five feet.
  • the lip member 7 mounts a plurality of excavating teeth 8, as will be detailed hereinafter, and is symmetrical about a central plane of symmetry indicated by numeral 11 in FIGS. 4 and 5.
  • the forward edge face 13 of lip 7 which is the face closest to the observer in FIG.
  • sockets 12 are provided with a plurality (thirteen in number) of transversely spaced sockets 12, for receiving the shank portions of respective excavating teeth 8, which sockets are distributed over the base and legs of the U previously mentioned and which extend more or less longitudinally of the lip (which would mean in a more or less vertical direction in FIG. 5).
  • the sockets 12 all have exactly the same size and shape, so for convenience only some of them (those devoid of teeth, generally at the right-hand side of line 11 in FIG. 4) are illustrated in detail.
  • the forward edge 13 of lip member 7 is skewed rearwardly at its two opposite ends, essentially beginning at the corners of the U" previously mentioned, as may be seen in FIGS. 3 and 5.
  • This provides an approximately U-shaped outer configuration when viewed at to the end-on direction, that is, when viewed as in FIG. 5, which may be considered a plan or top view, looking down at the lip from above.
  • the five central teeth 8a-8e (of the group of 13 teeth generally denoted by numeral 8) all have the same length, these teeth being shorter than the other eight teeth of the group.
  • the central plane of symmetry passes through the center of tooth 8c.
  • the center of the lip 7 is relieved in both planes, thereby to provide a variable profile lip (or variable profile bucket).
  • the central portion of the forward edge 13 of lip member 7 is stepped rearwardly from both ends of such central portion to the middle thereof.
  • the lip forward edge portion 13a for tooth 8a (which forward edge portion establishes the position of the chisel edge of tooth 8a) is rearwardly displaced (about 1 inch, for example) with respect to the lip forward edge portion 13f for tooth 8f, which latter is the tooth immediately adjacent to tooth 8a, toward the corner of the U," and is one of the eight longer teeth.
  • the lip forward edge portion 13b for tooth 8b is rearwardly displaced (1 inch, for example) with respect to the lip forward edge portion 13a; the lip forward edge portion 13c for tooth 8c is rearwardly displaced (1 inch, for example) with respect to the lip forward edge portion 13b.
  • the lip member 7 being symmetrical about the central plane 11, the lip forward edge portion 1311 for tooth 8d is coplanar with lip edge portion 13b (so 13d and 13b are horizontally aligned in FIG. 5).
  • the lip forward edge portion 13e for tooth 8e is coplanar with lip edge portion 13a.
  • the stepping of the lip 7 in the forward-rearward direction provides a regular progression, of the forward, chisel edges of the teeth 8a-8e, from each end of this group of five teeth to the central plane of symmetry; thus, the forward edge of tooth 8b is stepped rearwardly from the outer edge of tooth 8a, and the forward edge of tooth 8c is stepped rearwardly from the outer edge of tooth 8b. Similarly, the forward edge of tooth 8d is stepped rearwardly from the outer edge of tooth 8e, and the forward edge of tooth 8c is stepped rearwardly from the outer edge of tooth 8d.
  • the forward edge of tooth 8a is located a considerable distance rearwardly with respect to the outer edge of tooth 8f, and also with respect to the outer edge of corner tooth 8h.
  • the forward edge of tooth 8e is located a considerable distance rearwardly with respect to the outer edge of tooth 8g, which latter is the tooth immediately adjacent to tooth 8e, toward the corner of the U," and is one of the eight longer teeth.
  • the forward edge of tooth 8e is also located a considerable distance rearwardly with respect to the outer edge of corner tooth 8i.
  • the central portion of the forward edge 13 of the lip is stepped inwardly (i.e., upwardly in FIG. 4 with respect to a reference plane indicated by line 14), with respect to the ends of the central portion, from both ends of such central portion to the middle thereof.
  • line 14 in FIG. 4 might also represent the substantially vertical face of the work, during the digging or excavating operation (compare FIG. 1).
  • the center of the socket for tooth 8a is displaced inwardly (with respect to reference plane 14, which would mean upwardly in FIG. 4) a distance of about 54-inch relative to the center of the socket for tooth 8f.
  • the center of the socket for tooth 8b is displaced inwardly a distance of about Ki-inch relative to the center of the socket for tooth 8a.
  • the center of the socket for tooth 8c, the central tooth, is displaced inwardly a distance of about /4-lI1Ch relative to the center of the socket for tooth 812.
  • the center of the socket 12 for tooth 8d is displaced outwardly (which is to say downwardly in FIG. 4) a distance of about I a-inch relative to the center of the socket for tooth 8c; the center of the socket 12 for tooth 82 is displaced outwardly a distance of about i i-inch relative to the center of the socket 12 for tooth 8d; the center of the socket 12 for tooth 8g is displaced outwardly a distance of about iii-inch relative to the center of the socket 12 for tooth 8e.
  • center teeth 8a-8e are located inwardly with respect to reference plane 14, to which the corner teeth 8h and 81' are tangent.
  • the center teeth 8a-8e are also spaced above (in FIG. 4) the teeth 8f and 8g.
  • the center of the lip member 7 (at the locations of teeth 8a-8e) is relieved in both planes. Due to this construction, the corner teeth (8f-8i, as well as others yet to be described) do the initial digging, without interference from the central section, in both forward and side (or lateral) movements of the bucket lip. In fact, most of the actual digging is accomplished by the corner teeth, the center teeth 8a-8e serving mainly merely to convey the excavated material rearwardly, into the bucket 5. Because the corners do the initial digging, without interference from the central section of the lip, the power required to drive the wheel 1 is substantially reduced, thus increasing the total work capacity (in tons per hour of material mined).
  • the center lines of all of the central teeth 8a-8e extend parallel to the central plane of symmetry 11, which means that the lip edge portions 13al3e all lie at right angles to this symmetry plane (or line).
  • the lip edge portions 13f(for tooth 8 and 13g (for tooth 8g) are canted slightly with respect to edge portions 13a, etc., such that the angle to (FIG. 5) is about 7, which means that the chisel edges of teeth 8f and 8g form angles of 7 with the horizontally-extending reference plane 14 in FIG. 4.
  • the edge of tooth 8f extends upwardly from left to right at 7, whereas the edge of the corresponding tooth 8g extends upwardly from right to left at 7 (in FIG. 4).
  • the lip edge portions 13h (for the corner tooth 8h) and 13i (for the corner tooth 8i) are located forwardly (speaking with reference to FIG; 5) of the lip edge portions 13f and 13g, respectively, such that the corner teeth 8h and 8i will, in general, engage the work first,
  • the angle which the (substantially planar) lip edge portions 13h and 13i make with the central plane of symmetry 11 has been determined to be rather critical, for minimizing driving power and maximizing tooth life.
  • This acute angle a between the chisel edges of the corner teeth 8h-8i and the work face 14 should lie in the range of about 32 to about 38, preferably about 35.
  • the corner teeth 8h and Si would be like mirror images of each other, the edge of tooth 8h extending downwardly from left to right at the angle a (in FIG. 4), and the edge of tooth 8i extending upwardly from left to right at the angle a.
  • the forward edge 13 of lip member 7 is skewed rearwardly at its two opposite ends,. which means that the lip edge portions 13j (for the tooth 8j) and 13k (for the tooth 8k) are located rearwardly (speaking with reference to FIG. 5; see also FIG. 3) of the lip edge portions 13h and Bi, respectively.
  • these lip edge portions l3j and 13k are so disposed that the angle B formed between the chisel edges of the teeth 8j and 8k and the face-of-the-work line 14 is greater than the angle a.
  • the angle B is preferably about 60.
  • the edge of tooth 8j extends downwardly from left to right at the angle ,8 (in FIG. 4), while the edge of tooth 8k extends upwardly from left to right at the angle [3.
  • the lip edge portions 13l (for the extreme end tooth SI) and 13m (for the extreme end tooth Sm) are located rearwardly (speaking with reference to FIG. 5; see also FIG. 3) of the lip edge portions 13j and 13k, respectively.
  • these lip edge portions 13l and 13m are so disposed that the angle formed between the chisel edges of the teeth SI and 8m and the face-ofthe-work line 14 is greater than the angle [5.
  • the angle 'y between the chisel edges of these teeth and a perpendicular to the line 14 is about 5, which means that the angle formed between the chisel edges of teeth 81 and 8m and the face-of-the-work line 14 would be about 85.
  • the edge of tooth 8! extends downwardly from left to right at about 85 (in FIG. 4), while the edge of. tooth 8m extends upwardly from left to right at about 85. 1 7
  • Each of the lip edge portions 13a-13m is substantially planar, in and of itself, as previously mentioned, and each has, at the approximate center of such edge portion, a respective socket 12 for a corresponding one of the teeth 8a-8m.
  • the sockets 12 all extend generally inward of the lip member 7, and the longitudinal axis or center line of each socket is perpendicular to the plane of its respective lip edge portion.
  • the shank portions of all of the teeth 80-87" are of elliptical or oval transverse cross-section (see for instance FIG. 8), and the sockets 12 have a matching elliptical or oval configuration, to receive the individual tooth shanks. This shape prevents any substantial rotation of the teeth in their socket; however, the tooth sockets 12 are cored (or reamed) to allow a small'amount (say 2) of rotational clearance or freedom.
  • the shanks of all the teeth 8a-8m are exactly alike, and the distal portions of the teeth are all chiselshaped, but the distal portions of the central teeth Sa-Se are considerably shorter than are those of the remaining teeth Sf-Sm.
  • the outer teeth Sf-fim are preferably fabricated to have the form illustrated in my copending application, Ser. No. 255,960, filed May 18, 1972; however, as previously mentioned, the shanks of I all the teeth Sa-Sm are exactly alike.
  • Each tooth shank such as shank 15 of the tooth 8c which is illustrated, has a generally elliptical (or oval) transverse cross-section (see FIG. 8), and is tapered from one end to the other, to provide a driving fit in its respective socket 12 of matching taper and elliptical cross-section. It will be recalled, in connection with FIGS. 4 and 5, that a separate, individual socket 12 is provided in lip 7 for each respective excavating tooth 8.
  • the distal ends or distal portions of all of the teeth are generally chisel-shaped, and the tooth width at the inner end of the distal portion exceeds the maximum outer dimension of the shank, thereby to provide a shoulder 16 (which may be beveled from both outer edges toward the center; see FIG. 7) at the juncture of the shank portion 15 and the distal portion of the tooth.
  • shoulder 16 comes into engagement with the corresponding lip forward edge portion such as 130, to limit the insertion of the tooth and to properly position the tooth (and particularly the forward, chisel edge thereof) with respect to lip 7.
  • a face layer of a hard, wear resistant material (for example, a form of tungsten carbide), denoted generally by numeral 17, is provided (by means of an electrodeposition process, for example) on the upper (in FIGS. 4 and 5) face of each of the end teeth (longer teeth) 8f-8m; this upper face is the one which approaches the work first.
  • This hard-facing is applied over a tooth length denoted by numeral 18 (FIG. 5); this length may be about 3% inches.
  • the hard-facing is applied over the entire distal portions of the teeth (a length of about 6 inches). Again, the hard-facing is applied to the face which approaches the work first.
  • a long tooth such as Sf-Sm could be cut off about at thevinner end of the length dimension 18, and then a hard facing 19 could be electrodeposited on one side, over the entire remaining length of the distal portion of the tooth.
  • a keying means is provided, to make certain that the excavating teeth are properly installed in the bucket lip (i.e., such that the hard facings face in the same direction as does the interior of the buckets).
  • An integral, outwardlyextending keying projection or spine 20 is formed on the outer end of each tooth shank 15, adjacent the shoulder 16; this spine is on the same side of the tooth as is the hard facing 19 (or 17, as the case may be, all the tooth shanks being exactly alike).
  • Matching keying slots 21 are formed in the lip 7, one in the outer end of each respective socket 12, at the upper side thereof (speaking with reference to FIGS. 4 and 5).
  • the keying elements 20-21 described make it impossible for any of the teeth 8 to be inserted into sockets 12 in an upside-down or inverted position.
  • each of the teeth 8 in position in its respective socket 12, a pair of oppositely-disposed semi-cylindrical grooves 22 are formed in each tooth shank one at each of the two opposite sides thereof, these grooves extending from top to bottom of the shank in directions parallel to the minor axis of the elliptical shank (see FIGS. 7 and 8).
  • a composite mounting or retaining pin 24, of the type illustrated in FIG. 6, can then be inserted into the hole 23 and driven down through the tooth groove 22, thereby to retain the tooth in position in lip 7 by engagement of the pin with the side walls of the groove.
  • the pin 23 can be driven out of groove 22 and out of the lower end (in FIG. 8) of hole 23.
  • the composite mounting pin 24 may comprise two solid semi-cylindrical members 25 and 26 made of steel, between which is sandwiched a pad member 27 made of a suitable elastic or resilient material such as Neoprene.
  • the resilience of the pad 27 provides a composite pin which has a driving fit within hole 23; it can be driven into and out of engagement with tooth groove 22 by the application of a suitable driving force.
  • a wedge-shaped tool may be inserted into the corresponding knock-out hole 28, against the inner end face of the tooth shank, and then driven downwardly to eject the tooth from its socket 12, or to at least loosen it so that it can be then removed manually from the socket.
  • the insertion of the teeth such as 8c into their sockets 12 is effected by moving the teeth toward the left in FIG. 7, and removal from the sockets, by moving the teeth toward the right in this same figure.
  • a lip for excavating buckets comprising a rigid mounting member of generally U-shaped configuration, but wherein the base of the U" is substantially straight, viewed end-on from the work-engaging side of said lip, said member having in its forward edge face a group of transversely spaced and generally longitudinally-extending sockets distributed over the base and legs of the U for receiving the shank portions of respective excavating teeth, the longitudinal axes of the sockets in the base of the U, between the corners thereof, being parallel to each other and being substantially coplanar; and the forward edge of said member being skewed rearwardly at its two opposite ends from the comers of the U, whereby to provide a somewhat U-shaped outer configuration when viewed at to the end-on direction, the central portion of the forward edge of said member, viewed end-on, is stepped inwardly, with respect to the ends of said central portion, from both ends of such central portion to the middle thereof, the inward stepping of the central portion of the forward edge of said member, with respect to the ends of said central
  • a lip for excavating buckets comprising a rigid mounting member of generally U-shaped configuration, but wherein the base of the U is substantially straight, viewed end-on from the work-engaging side of said lip, said member having in its forward edge face a group of transversely spaced and generally longitudinally-extending sockets distributed over the base and legs of the U for receiving the shank portions of respective excavating teeth, the longitudinal axes of the sockets in the base of the U, between the corners thereof, being parallel to each other and being substantially coplanar; and the forward edge of said member being skewed rearwardly at its two opposite ends from the comers of the U, whereby to provide a somewhat U-shaped outer configuration when viewed at 90 to the end-on direction, the central portion of the forward edge of said member, viewed end-on, is stepped inwardly, with respect to the ends of said central portion, a separate individual socket is located in each respective one of the steps, whereby, when excavating teeth are mounted in the sockets, the tips of the teeth mounted in
  • a lip for excavating buckets comprising a rigid mounting member of generally U-shaped configuration viewed end-on from the work-engaging side of the lip, said member having in its forward edge face a group of transversely spaced and generally longitudinallyextending sockets distributed over the base and legs of the U for receiving the shank portions of respective excavating teeth, the central portion of the forward edge of said member being stepped rearwardly, viewed at 90 to the end-on direction, relative to the corners of the aforesaid U, and the rearward stepping of the central portion of the forward edge of said member, with respect to the ends of said central portion, is symmetrical about the center line of symmetry of said member and is in the form of a regular progression from each end of said central portion to such center line of symmetry.
  • An excavating bucket comprising a rigid mounting member of generally U-shaped configuration viewed end-on from the work-engaging side of the bucket, said member having in its forward edge face a group of transversely spaced and generally longitudinallyextending sockets distributed over the base and legs of the U" for receiving the shank portions of respective excavating teeth; excavating teeth mounted individually in said sockets, the tips of the teeth in the central portion of the member being stepped rearwardly, viewed at 90 to the end-on direction, relative to the tips of the teeth at the comers of the U, and the rearward stepping of the central portion of the forward edge of said member, with respect to the ends of said central portion, is symmetrical about the center line of symmetry of said member and is in the form of a regular progression from each end of said central portion to such center line of symmetry.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)
US00263336A 1972-06-15 1972-06-15 Lip construction for bucketwheel excavators Expired - Lifetime US3791054A (en)

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US26333672A 1972-06-15 1972-06-15

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US (1) US3791054A (ru)
JP (1) JPS5812424B2 (ru)
CA (1) CA941861A (ru)
FR (1) FR2189590B1 (ru)
GB (3) GB1437606A (ru)
IT (1) IT987306B (ru)
SE (1) SE396236B (ru)
SU (2) SU614756A3 (ru)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037337A (en) * 1976-08-18 1977-07-26 Adco Buckets, Inc. Excavating bucket and teeth for a backhoe
US4123861A (en) * 1976-08-18 1978-11-07 Hemphill Charles W Method of excavating earth with a bucket
US4360981A (en) * 1977-12-12 1982-11-30 Suncor Inc. Lip and tooth combination for bucket wheel excavator
US4642920A (en) * 1984-12-06 1987-02-17 Lehnhoff Hartstahl Gmbh & Co. Digger tooth arrangement
US5084990A (en) * 1990-08-06 1992-02-04 Esco Corporation Dragline bucket and method of operating the same
ES2103219A1 (es) * 1993-06-01 1997-09-01 O & Orestein & Koppel Aktienge Elevador de cangilones en especial descargador de barcos.
US5680717A (en) * 1995-11-14 1997-10-28 Bierwith; Robert S. Excavation bucket
WO2003016640A1 (en) * 2001-08-16 2003-02-27 Hensley Industries, Inc. Excavating tooth point and adapter apparatus
US20060117611A1 (en) * 2004-12-08 2006-06-08 Yoder Shaun L Excavating machine for rocky and other soils
WO2008025859A1 (es) * 2006-09-01 2008-03-06 Metalogenia, S.A. Diente y adaptador para maquina de dragado
US20080066350A1 (en) * 2004-09-09 2008-03-20 Humphries Robert G Method and Apparatus for Excavation of a Trench
US20150275467A1 (en) * 2012-10-08 2015-10-01 Spadeblade Pty Ltd Excavator bucket
CN112930830A (zh) * 2019-08-07 2021-06-11 金华市农业科学研究院(浙江省农业机械研究院) 一种马铃薯挖掘铲的自动调节组件
US20220034062A1 (en) * 2018-12-07 2022-02-03 Ssab Technology Ab A bucket for an earth-working or materials-handling machine
US20220042275A1 (en) * 2018-12-07 2022-02-10 Ssab Technology Ab A bucket for an earth-working or materials-handling machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160216U (ja) * 1983-04-11 1984-10-26 東芝機械株式会社 射出成形機等のシヤツトオフノズル
CA2476194C (en) 2004-07-30 2010-06-22 Suncor Energy Inc. Sizing roller screen ore processing apparatus
US8393561B2 (en) 2005-11-09 2013-03-12 Suncor Energy Inc. Method and apparatus for creating a slurry
CA2640514A1 (en) 2008-09-18 2010-03-18 Kyle Alan Bruggencate Method and apparatus for processing an ore feed
CA2812116C (en) 2009-07-24 2013-12-24 Suncor Energy Inc. Screening disk, roller, and roller screen for screening an ore feed
RU199787U1 (ru) * 2019-10-01 2020-09-21 Акционерное общество "Фонд "КОМПАС" (АО "Фонд "КОМПАС") Энергоэффективный ковш

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU184734A1 (ru) * Всесоюзный научно исследовательский институт Рабочее оборудование к тягачу для рытья траншей
US184734A (en) * 1876-11-28 Improvement in pliers
US625521A (en) * 1899-05-23 Bicycle or golf trousers
US1245118A (en) * 1916-04-08 1917-10-30 Moore Trench Machine Co Loading-excavator.
US1540314A (en) * 1924-06-19 1925-06-02 American Manganese Steel Co Pocketed bottom for excavating dippers
US1638099A (en) * 1924-10-27 1927-08-09 American Manganese Steel Co Endless-chain excavator bucket with digging teeth
US1764518A (en) * 1928-02-20 1930-06-17 Marks Howard Excavator
US1879447A (en) * 1931-07-03 1932-09-27 John W Page Bucket lip
US1890981A (en) * 1932-05-20 1932-12-13 Finkl & Sons Co Forged dipper tooth
US1960879A (en) * 1931-05-22 1934-05-29 Mills Alloys Inc Scarifier tooth
US2145663A (en) * 1936-09-28 1939-01-31 Nazro H Reynolds Attachment means for digging teeth and excavating buckets and the like
US2353685A (en) * 1943-01-07 1944-07-18 Cleveland Trencher Co Excavator bucket
US2834127A (en) * 1956-05-16 1958-05-13 United Electric Coal Companies Self-cleaning digging wheel buckets
US2893298A (en) * 1956-02-10 1959-07-07 Thomas P Averette Sheep foot tamper
US2935801A (en) * 1956-06-21 1960-05-10 Ii Selden L Stewart Rock excavating machine
CA625521A (en) * 1961-08-15 Barber-Greene Company Digger bucket
US3334431A (en) * 1964-06-16 1967-08-08 Dwight M Phillips Digger tooth construction
US3520076A (en) * 1967-07-05 1970-07-14 Irvin H Nichols Blade arrangement for earthmoving equipment

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA625521A (en) * 1961-08-15 Barber-Greene Company Digger bucket
US184734A (en) * 1876-11-28 Improvement in pliers
US625521A (en) * 1899-05-23 Bicycle or golf trousers
SU184734A1 (ru) * Всесоюзный научно исследовательский институт Рабочее оборудование к тягачу для рытья траншей
US1245118A (en) * 1916-04-08 1917-10-30 Moore Trench Machine Co Loading-excavator.
US1540314A (en) * 1924-06-19 1925-06-02 American Manganese Steel Co Pocketed bottom for excavating dippers
US1638099A (en) * 1924-10-27 1927-08-09 American Manganese Steel Co Endless-chain excavator bucket with digging teeth
US1764518A (en) * 1928-02-20 1930-06-17 Marks Howard Excavator
US1960879A (en) * 1931-05-22 1934-05-29 Mills Alloys Inc Scarifier tooth
US1879447A (en) * 1931-07-03 1932-09-27 John W Page Bucket lip
US1890981A (en) * 1932-05-20 1932-12-13 Finkl & Sons Co Forged dipper tooth
US2145663A (en) * 1936-09-28 1939-01-31 Nazro H Reynolds Attachment means for digging teeth and excavating buckets and the like
US2353685A (en) * 1943-01-07 1944-07-18 Cleveland Trencher Co Excavator bucket
US2893298A (en) * 1956-02-10 1959-07-07 Thomas P Averette Sheep foot tamper
US2834127A (en) * 1956-05-16 1958-05-13 United Electric Coal Companies Self-cleaning digging wheel buckets
US2935801A (en) * 1956-06-21 1960-05-10 Ii Selden L Stewart Rock excavating machine
US3334431A (en) * 1964-06-16 1967-08-08 Dwight M Phillips Digger tooth construction
US3520076A (en) * 1967-07-05 1970-07-14 Irvin H Nichols Blade arrangement for earthmoving equipment

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037337A (en) * 1976-08-18 1977-07-26 Adco Buckets, Inc. Excavating bucket and teeth for a backhoe
US4123861A (en) * 1976-08-18 1978-11-07 Hemphill Charles W Method of excavating earth with a bucket
US4360981A (en) * 1977-12-12 1982-11-30 Suncor Inc. Lip and tooth combination for bucket wheel excavator
US4642920A (en) * 1984-12-06 1987-02-17 Lehnhoff Hartstahl Gmbh & Co. Digger tooth arrangement
US5084990A (en) * 1990-08-06 1992-02-04 Esco Corporation Dragline bucket and method of operating the same
DE4201924A1 (de) * 1990-08-06 1993-08-05 Esco Corp Schuerfkuebel und arbeitsverfahren desselben
GB2264098A (en) * 1990-08-06 1993-08-18 Esco Corp Dragline bucket and method of operating the same.
GB2264098B (en) * 1990-08-06 1995-07-12 Esco Corp Dragline bucket and method of operating the same
ES2103219A1 (es) * 1993-06-01 1997-09-01 O & Orestein & Koppel Aktienge Elevador de cangilones en especial descargador de barcos.
US5680717A (en) * 1995-11-14 1997-10-28 Bierwith; Robert S. Excavation bucket
WO2003016640A1 (en) * 2001-08-16 2003-02-27 Hensley Industries, Inc. Excavating tooth point and adapter apparatus
US20080066350A1 (en) * 2004-09-09 2008-03-20 Humphries Robert G Method and Apparatus for Excavation of a Trench
US20060117611A1 (en) * 2004-12-08 2006-06-08 Yoder Shaun L Excavating machine for rocky and other soils
WO2008025859A1 (es) * 2006-09-01 2008-03-06 Metalogenia, S.A. Diente y adaptador para maquina de dragado
US20090320333A1 (en) * 2006-09-01 2009-12-31 Metalogenia, S.A. Tooth and adaptor for dredging machine
US8166678B2 (en) 2006-09-01 2012-05-01 Metalogenia, S.A. Tooth and adaptor for dredging machine
US20150275467A1 (en) * 2012-10-08 2015-10-01 Spadeblade Pty Ltd Excavator bucket
US9957688B2 (en) * 2012-10-08 2018-05-01 Spadeblade Pty Ltd Excavator bucket
US20220034062A1 (en) * 2018-12-07 2022-02-03 Ssab Technology Ab A bucket for an earth-working or materials-handling machine
US20220042275A1 (en) * 2018-12-07 2022-02-10 Ssab Technology Ab A bucket for an earth-working or materials-handling machine
US11982067B2 (en) * 2018-12-07 2024-05-14 Ssab Technology Ab Bucket for an earth-working or materials-handling machine
CN112930830A (zh) * 2019-08-07 2021-06-11 金华市农业科学研究院(浙江省农业机械研究院) 一种马铃薯挖掘铲的自动调节组件
CN112930830B (zh) * 2019-08-07 2023-03-14 金华市农业科学研究院(浙江省农业机械研究院) 一种马铃薯挖掘铲的自动调节组件

Also Published As

Publication number Publication date
GB1437605A (en) 1976-06-03
FR2189590B1 (ru) 1977-02-11
DE2330543B2 (de) 1977-06-02
SU614756A3 (ru) 1978-07-05
GB1437607A (en) 1976-06-03
FR2189590A1 (ru) 1974-01-25
GB1437606A (en) 1976-06-03
IT987306B (it) 1975-02-20
JPS5812424B2 (ja) 1983-03-08
DE2330543A1 (de) 1974-01-03
SE396236B (sv) 1977-09-12
JPS4956407A (ru) 1974-05-31
CA941861A (en) 1974-02-12
SU843775A3 (ru) 1981-06-30

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