US3382003A - Mining planer arrangement having a parallelogram-disposed articulatedly mounted cuttig means - Google Patents

Mining planer arrangement having a parallelogram-disposed articulatedly mounted cuttig means Download PDF

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US3382003A
US3382003A US542302A US54230266A US3382003A US 3382003 A US3382003 A US 3382003A US 542302 A US542302 A US 542302A US 54230266 A US54230266 A US 54230266A US 3382003 A US3382003 A US 3382003A
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base
carrier
mine
leading
planer
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Hauschopp Alois
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WEWERKSCHAFT EISENHUTTE WESTFA
WEWERKSCHAFT EISENHUTTE WESTFALIA
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WEWERKSCHAFT EISENHUTTE WESTFA
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements

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  • the present invention relates to a mining planer arrangement having a parallelogram-disposed articulatedly mounted cutting means, especially a lead cutting means and/or bottom cutting means, and more particularly, such an arrangement in which the planes of the articulatedly interconnected mounting linkage for the cutting tools together form a parallelepiped.
  • a mining planer In extracting mineral from a mine face by the longwall method, using a mining machine positioned for longitudinal displacement back and forth therealong in extractive engagement therewith, the cutting tools of the mining machine must be maintained in proper alignment in order to achieve efficient winning of mineral, such as coal.
  • a mining planer is used for this purpose, which is guided along a mining conveyor, urged transversely under constant force so as to urge in turn the planer transversely against the mine face to facilitate the planing operation.
  • planers often deviate from their normal longitudinal path, despite the presence of a mining conveyor or other guide means tending to keep them in positive engagement with the mine face.
  • An expedient in the past has been the provision for a lead cutter or chisel and/or a bottom cutter or chisel positioned at the leading longitudinal end and/or along the bottom longitudinal portion of the planer, whereby to engage the mine face ahead of the engagement via the main cutting tools of the planer and/or to engage the mine floor at the intersection thereof with the mine face to prevent undesired deviation from the normal path and to permit the planer to follow consistently undulations in the mine floor and/or in the bottom marginal portion of the particular mine seam.
  • lead cutters or bottom cutters serve not only to guide the mining planer in the desired path but also to relieve pressure in the Working face such that the main cutting toolsof the planer may cut mineral, such as coal, from the mine face under less resistance.
  • a guiding groove is provided which keeps the planer in the desired path and also which robs the mine face portion thereabove from support sufficiently to facilitate the work of the main chisels or cutters of the planer in extracting mineral thereat.
  • the planer may be steered or controlled in its path more or less so that the planer may follow the mine floor more precisely and/or cut more pronouncedly transversely into the mine face adjacent thereto.
  • Such leading and bottom cutters are conveniently adjusted by the mine workman according to the nature of the mineral being extracted, for example, hard or soft coal, and according to the nature of the mine floor therein, for example, even or uneven disposition with respect to the normal longitudinal path.
  • leading or bottom cutters or chisels have been pivotally mounted thereon either about a horizontal axis that is perpendicular to the mine face or about a horizontal axis that is parallel to the mine face, or even 3,382,003 Patented May 7, 1968 about an axis that is inclined in the direction of movement of the planer and in relation to the mine floor.
  • the leading and/or bottom cutters may be locked at any desired angle of attack through appropriate locking means.
  • the leading or bottom cutters of conventional arrangements possess an axis which slants in the direction of movement of the planer and which is inclined toward the mine floor
  • an advantage is enjoyed over the alternate aforementioned prior art constructions, in that the pivoting cutters or chisels are disposed in such a manner that they pivot automatically into the mine face or into the mine floor as the case may be, so long as they are doing cutting work, and automatically pivot away when they are in the trailing position with respect to the planer as such planer is conducted in the opposite direction along the longitudinal path.
  • Chisels of the foregoing type are generally not fastened directly to the pivoting axis, but actually form the prolongation of a flap-like part that pivots about the actual pivot axis.
  • flap-like part serves firstly to span the breadth of the planer, i.e., that distance between the pivoting shaft at the pivoting axis and the mine face adjacent thereto, and secondly to exercise a shoveling or ploughing action with respect to mineral disposed therebefore in the longitudinal direction to force such mineral over into the conveyor utilized in conjunction therewith.
  • Such mineral disposed therebefore is usually produced by the cutting action of the bottom chisel or chisels of the planer or by the action of the main chisels or cutting tools in the previous passage of the planer yet not theretofore ploughed from the planer alley onto the conveyor.
  • planer in typical longwall mining operations, the planer is disposed as closely as possible to the mine face with the distance therebetween being just sufiicient to permit the passage of the planer therealong. This distance may be termed the planer alley and such alley is filled with extracted mineral which is appropriately forced by plough-shaped surfaces on the planer itself transversely away from the mine face and onto the conveyor.
  • pivoting cutters or chisels of the aforementioned types which may be formed as shifting shafts which can be operated from the waste side or side of the planer remote from the mine face, and which are fitted with eccentric cam means or the like at the working face side or side of the planer adjacent the mine face, for controlling the pivotal disposition and range of limited motion of the particular cutters or chisels in question, whereby to control the cutting depth of such chisels or cutters into the mine face thereat, and/or the cutting depth thereof into the adjacent mine floor.
  • pivoting cutters or chisels of the aforementioned types which may be formed as shifting shafts which can be operated from the waste side or side of the planer remote from the mine face, and which are fitted with eccentric cam means or the like at the working face side or side of the planer adjacent the mine face, for controlling the pivotal disposition and range of limited motion of the particular cutters or chisels in question, whereby to control the cutting depth of such chisels or cutters into the mine face thereat, and/or the cutting
  • Both actions namely the pivoting of the chisels into the mine floor and the regulation or steering control of the cutting depth of such chisels into the mine face, are naturally interdependent, due to the adjacency of the mine face and mine floor at the intersection therebetween where the chisels in question normally operate.
  • Both the range of pivoting of the chisels into the floor and the range of the cutting depth thereof into the mine face are increased or decreased only simultaneously, since these ranges are interdependent as aforesaid in the apex area between the mine roof and mine fioor.
  • FIG. 1 is a schematic front elevational view of a portion of a mining planer illustrating the disposition thereat of a parallel linkage arrangement for carrying a leading and bottom cutting chisel means adapted to engage the mine face at the area thereof adjacent the mine floor, in accordance with the present invention
  • FIG. 2 is a schematic top plan view of the arrangement of FIG. 1;
  • FIG. 3 is a schematic cross sectional view, taken along the line 3-3 of FIG. 1.
  • a mining planer arrangement of eflicient design comprises a longitudinally extending base means adapted to be conducted longitudinally back and forth along a mine face adjacent the corresponding mine floor and having longitudinally spaced apart leading and trailing base pivot axes means thereon, a longitudinally extending cutting tool carrier means transversely spaced from said base means and correspondingly having longitudinally spaced apart leading and trailing carrier pivot axes means thereon, and a pair of spaced apart transversely extending leading and trailing link means, having a coiresponding predetermined transverse effective linking length, and articulatingly interconnecting said carrier means and base means via said base pivot axes means and said carrier pivot axes means in the form of a parallelogram, whereby to permit said carrier means and carrier means to be displaced longitudinally relative to each other.
  • Stop means are provided operatively on such arrangement for limiting the longitudinal range of relative displacement between the base means and carrier means, and preferably such link means, base axes means, and carrier axes means are correspondingly slanted upwardly in the direction from the leading to the trailing link means.
  • leading link means is preferably provided with a correspondingly slanted slide surface extending to the mine floor for guiding extracted mineral material therebefore upwardly thereover to conduct the same onto a mining conveyor associated therewith.
  • FIG. 1 shows a portion of a conventional mining planer 1, such as is illustrated, for example, in each of US. Patents 3,118,657 and 3,134,581, such portion being considered in the longitudinal direction of arrow 2 to be disposed at the leading longitudinal end of the planer, the trailing end thereof not being shown but being disposed toward the right as viewed in FIG. I.
  • base 3 is provided which includes a more or less vertical face 4.
  • carrier 5 Spaced from base 3 is the carrier 5 which is provided with a similarly vertical face 6 more or less parallel to face 4.
  • Transversely extending leading link 7 and trailing link 8 are provided which interconnect base 3 and carrier 5 in the form of a parallelogram, as may be appreciated from FIG. 2 and especially from FIG. 3.
  • base 3 is provided with leading base ears 9 and carrier 5 is provided with leading carrier ears 10 which operatively enmesh with corresponding leading link ears 11 and 12, through which the shafts 13 and 14, respectively, extend.
  • trailing carrier car 15 and an appropriate trailing base recess 16 are provided for articulatedly mounting trailing link 8 via the interconnecting shafts 17 and 1S.
  • Shafts 13 and 17 are disposed more or less in the same vertical plane corresponding to vertical face 4 of base 3 while shafts 1d and 18 are similarly disposed more or less in the same vertical plane correspond ing to vertical face 6 of carrier 5, such that the planes are parallel to one another.
  • the leading link 7 and the trailing link 8 are disposed in corresponding spaced apart vertical planes which are parallel to one another, whereby to form with the first mentioned parallel planes, a
  • leading link 7 is disposed in the form of a plate link having slide surface ll; thereat extending downwardly to the mine floor to cause extracted mineral disposed thereahead in the direction of advance of arrow 2 to be guided or shoveled thereby upwardly over the transversely extending upper cover 2b of base 3 for deposition onto a mining conveyor situated adjacent planer 1 at the side thereof remote from carrier 5.
  • Upper cover 20 extends transversely in the direction of carrier 5 so as to protectively cover the adjacent portion of carrier 5 as well as the trailing link 8 and generally the space between carrier 5, base 3, link 7 and link 8.
  • FIG. 3 From FIG. 3 may be seen the parallelogram relationship of the base 3, carrier 5 leading link 7, and trailing link 8, with the shafts 13 and 17, on the one hand, and the shafts 14 and 18, on the other hand, representing the apexes of the parallelogram in question.
  • the planes intersecting the axes of such shafts together form a parallelepiped, which as shown in FIG. 3 represent a right parallelepiped.
  • the parallelogram and/or parallelepiped in quest5 tion will change from a right parallelogram and/ or right parallelepiped to an oblique parallelogram and/or parallelepiped.
  • the shafts 13, 14, 17 and 18 are incined in an upwardly slanted direction from the leading to the trailing portions of the arrangement, yet with the axes of such shafts remaining parallel to one another whereby to preserve the parallelogram and/or parallelepiped disposition desired.
  • a leading base stop 21 is defined at the underside of upper cover 20 and spaced therefrom at such underside is the trailing base stop 22, stops 21 and 22 being operatively spaced apart a sufficient distance in the longitudinal direction to permit the carrier stop 23 to be operatively disposed therebetween.
  • Carrier stop 23 actually includes a leading carrier stop surface 24 and a trailing carrier stop surface 25, operatively positioned for respective limiting abutment with leading base stop 21 and trailing base stop 22.
  • trailing base stop 22 may take the form actually of an eccentrically mounted cam stop surface element which may be changed in disposition to provide a different longitudinal distance between leading base stop 21 and trailing base stop 22.
  • the parallel linkage provided between carrier 5 and base 3 in the form of links 7 and 8, permits the forwardly disposed cutting tool 26 to be changed in position to bring the same closer to or farther from the mine floor 27 and correspondingly closer to or farther from the mine face 28, for the more efficient guidance of planer it along its normal longitudinal path and especially for the most efficient following of undulations in the mine floor by the entire planer arrangement.
  • the cutting tool 26 may be displaced outwardly toward the mine face to achieve a given depth of cut and as may be seen in FIG.
  • such tool may be displaced downwardly toward the mine floor to follow the undulating course thereof, or displaced rearwardly away from the mine face or raised upwardly from the mine floor, as the case may be within the limits of relative displacement of carrier 5 and base 3 determined by the relationship of carrier stop 23 with 'espect to base stops 21 and 22.
  • the phantom positions of cutting tool 26 shown in FIGS. 1 and 2 represent the range of disposition of the cutting tool with respect to the mine floor 27 and mine face 28, in dependence, as aforesaid, on the particular disposition of the cam stop surface element of trailing base stop 22.
  • a mining planer adapted to be conducted longitudinally back and forth along a mine face adjacent the corresponding mine floor for extraction of mineral from such mine face.
  • such improvement comprises longitudinally extending base means positioned on a corresponding longitudinal end of said planer at the bottom portion thereof adjacent the mine floor, longitudinally extending cutting tool carrier means transversely spaced from said base means, a pair of longitudinally spaced apart transversely extending link means a-rticulatingly interconnecting said carrier means and base means in the form of a parallelogram, and stop means operatively positioned with respect to said base means, carriage means and link means to permit said base means and carrier means to be limitedly displaced longitudinally relative to each other.
  • the planes of said base means, carrier means and link means intersect to form a parallelepiped.
  • the apexes of such parallelepiped are slanted upwardly in the longitudinal direction from the particular longitudinal end of the mining planer to the opposite longitudinal end thereof.
  • the base means and carrier means are limitedly longitudinally displaceable relative to each other from an operative position in which said planes form a substantially right parallelepiped to an inoperative position in which said planes form a substantially oblique parallelepiped.
  • the carrier means may be provided with a cutting tool thereon extending outwardly and downwardly therefrom in a direction remote from the base means and the link means for operatively engaging in said operative position simultaneously the adjacent portion of the mine face 'and mine floor thereat.
  • the corresponding link means adjacent such cutting tool may be provided with a correspondingly slanted slide surface extending downwardly to the mine floor for guiding extracted mineral material therebefore upwardly thereover to a mining conveyor (not shown) adjacent the remote side of the planer.
  • the base axes means or shafts are in the form of fixedly disposed shafts.
  • the leading lin-k means, base means and carrier means are preferably provided with corresponding hinge projections or ears through which the base axes means and the carrier axes means, i.e., shafts, operatively interconnectdly extend.
  • the base means includes an upper cover means portion operatively protectively transversely overlying at least a part of the upper portion of the carrier means and link means.
  • the stop means include an operatively spaced apart leading and trailing base stop means provided on said base means and a cooperating carrier stop means provided on said carrier means at a point operatively inter-mediate said pair of spaced apart base stop means for limiting said range of relative displacement between said base means and said carrier means.
  • such base stop means are provided at the underside of said cover means portion and said carriage stop means is provided correspondingly on the upper portion of said carrier means intermediate said base stop means for relative movement of said base stop means and said carrier stop means with respect to each other from an operative position, in which said carrier stop means is in abutting disposition with said trailing base stop means and in which the planes of said base means, carriage means and leading and trailing link means form a substantially right parallelepiped having such slanted base axes means and carrier axes means as the corresponding planar apexes thereof, to an inoperative position, in which said carrier stop means is in abutting disposition with said leading base stop means and in which the planes of said base means, carriage means and leading and trailing link means form a substantially oblique parallelepiped having such slanted base axes means and carrier axes means as the corresponding planar apexes thereof.
  • the corresponding leading edge of the carrier means adjacent the leading link means is provided with a cutting tool means longitudinally forwardly extending therefrom in a direction remote from said trailing link means yet adjacent such mine floor, whereby upon displacement of said carrier means with respect to said base means, within the range of relative displacement therebetween, said tool means may be moved from an inoperative position, spaced from such mine floor and from a mine face adjacent said carrier means and in which said carrier means is transversely closer to said base means, conforming to said oblique parallelepiped, to an operative extractive engagement position, in which said tool means extractively engages simultaneously such mine floor and mine face and in which said carrier means is transversely farther from said base means, conforming to said right parallelepiped.
  • each such link means is correspondingly replaceably connected via the axes means or shafts for interchange with alternate link means having a different transverse effective linking length.
  • the cutting tool means may have a cutting point normally extending in said operative position transversely beyond the corresponding outer edge portion of said carrier means remote from said base means and downwardly beyond the corresponding lower edge portions of said base means, said carrier means, and said link means.
  • the angle of incline or slant of the axes or shafts can be selected advantageously so as to correspond with the most favorable conditions for attacking the mine face.
  • a higher perpendicular angle of tilt i.e., with respect to such mine floor, will be provided whereby to permit a comparatively greater swing into the mine face along with only a slight swing into the mine floor.
  • the axes or shafts interconnecting the spaced apart links with the base i.e., the shafts on the waste side of the arrangement remote from the mine face
  • the cutting action will be within a limited range of displacement parallel to the mine face or parallel to the mine floor throughout the pivotal range of movement of the parallelogram-disposed linkage.
  • leading and transverse links as interchangeable parts having different shaft spacings, i.e., different transverse effective linking lengths
  • the same carrier and cutting tool may be utilized having greater or lesser depth of cut, or a slighter or more pronounced rotation thereof about the axes of the shafts in question, depending upon the particular interconnecting links utilized and in turn their transverse effective linking length.
  • This permits the arrangement to adapt to particular seam conditions since different transverse links will determine the range of cutting action of the cutting tool and the path thereof with respect to the axes or shafts.
  • the carrier may now be provided with a cutting tool which may be set unlimitedly far ahead of the pivoting linkage, i.e., axes or shafts, whereby good loading work via the slanted slide surface at the leading link will be attained, with the assurance that during the pivoting of the cutting tool or chisel away from the mine face and/or away from the mine floor, the cutting angles of such tool or chisel in relation to the mine face or mine floor will remain unaltered.
  • a cutting tool which may be set unlimitedly far ahead of the pivoting linkage, i.e., axes or shafts, whereby good loading work via the slanted slide surface at the leading link will be attained, with the assurance that during the pivoting of the cutting tool or chisel away from the mine face and/or away from the mine floor, the cutting angles of such tool or chisel in relation to the mine face or mine floor will remain unaltered.
  • the cutting specifications may be modified with versatility to achieve an intentional canting of the cutting tools or chisels in the pivoting action.
  • the cutting tool will always be urged into the mine face and the mine floor during the cutting stroke, i.e., during the advance of the mining planer in the given corresponding operative direction, and such cutting tool will not be pivoted out of the mine face or caused to deviate from its normal path because the same may encounter hard coal, as occurred heretofore.
  • the very appropriate parallelogram disposition of the pivot axes of the linkage in question permits a leverage to be exerted on the cutting tools or chisels with respect to the mine 9. face and/or mine floor under the tractive force of the planer being displaced along its longitudinal path, which is more or less independent of previous considerations which led to the various disadvantages hereinbefore discussed.
  • the cutting chisels will operate in the desired forward longitudinal direction without deviation, i.e., within the limits of their range of pivotal movement, whe eby markedly precise control of the guidance of the mining planer may be attained not only with respect to its path of movement along the mine face but also with respect to its path of movement along the mine floor. Accordingly, in any of the positions of the cutting tool (see FIGS. 1 and 2), the parallel linkage mounting of carrier with respect to base 3 will assure an absolutely parallel pivoting in relation to the mine face and mine floor along the predetermined longitudinal direction.
  • the parallelogram linkage construction of the leading and/ or bottom cutter may be placed at both longitudinal ends of the particular mining machine, such as a mining planer, although the arrangement of such parallelogram linkage is only shown at one such longitudinal end of a mining planer.
  • one particular parallelogram linkage will come into operation when dis-posed at the leading longitudinal end of the planer in the given direction of longitudinal displacement thereof, while the other corresponding parallelogram linkage at the trailing longitudinal end of the planer, with respect to such direction, will be swung away from the mine face and upwardly from the mine floor.
  • the base and carrier need not be disposed in a right parallelogram or right parallelpiped disposition together with the transverse links, but rather such base and carrier need only be spaced transversely from one another a greater distance than that distance when in the inoperative position, the latter being considered one in which the parallelogram or parallelepiped arrangement contains a smaller acute angle between the appropriate portions of the leading link and the carrier than when such link and carrier are in the former or operative position.
  • the particular angle of slant may be varied, by the use of suitable interchangeable elements (not shown), whereby to achieve different angles of incline.
  • the various ears or hinge projections may be provided with separately longitudinally spaced apart sets of openings, whereby to achieve with appropriately inserted shafts, different angles of incline, such that the appropriately positioned links may in turn be disposed at different angles of incline.
  • the carrier may be replaced by different carriers dimensioned to be usable with such shafts and links at predetermined preferred corresponding angles of incline, and While such alternate carriers are not shown, their constructions and arrangements will be obvious to the artisan in the light of the instant disclosure.
  • the carrier shafts are displaceable, at least in the sense that while the base and the corresponding shafts or axes means thereof are stationarily disposed at the appropriate longitudinal end of the mining planer, the carrier and the corresponding shafts thereof will be displaceable via the parallelogram linkage arrangement in the longitudinal di rection with respect to the base, the base shafts or axes means, and the mining planer itself.
  • the base shafts may also be fixed from rotation once inserted in place, but of course the base shafts and the carrier shafts may be appropriately positioned as axle shafts which may rotate Within the appropriate ears or hinge projections to facilitate the articulate or pivotal movement of the adjacent links.
  • Mining planer arrangement which comprises a lon gitudinally extending base means adapted to be conducted longitudinally back and forth along a mine face adjacent the corresponding mine floor and having longitudinally spaced apart leading and trailing base pivot axes means thereon, a longitudinally extending cutting tool carrier means transversely spaced from said base means and correspondingly having longitudinally spaced apart leading and trailing carrier pivot axes means thereon, and a pair of spaced apart transversely extending leading and trailing link means, having a corresponding predetermined transverse effective linking length, and articulatingly interconnecting said carrier means and base means via said base pivot axes means and said carrier pivot axes means in the form of a parallelogram, said link means, said base axes means and said carrier axes means being correspondingly slanted upwardly in the direction from said leading to said trailing link means, whereby to permit said base means and carrier means to be displaced longitudinally relative to each other.
  • stop means are provided operatively on said arrangement for limiting the longitudinal range of relative displacement between said base means and said carrier means.
  • leading link means includes a correspondingly slanted slide surface extending to such mine floor for guiding extracted mineral material therebefore upwardly thereover to conduct such material onto a mining conveyor with which such mining planer arrangement is adapted to be associated.
  • said base means includes an upper cover means portion operatively protectively transversely overlying at least a part of the upper portion of said carrier means and said link means.
  • stop means include a pair of operatively spaced apart leading and trailing base stop means provided on said base means and a cooperating carrier stop means provided on said carrier means at a point operatively intermediate said pair of spaced apart base stop means for limiting said range of relative displacement between said base means r and said carrier means.
  • said base stop means are provided at the underside of said cover means portion and said carrier stop means is provided correspondingly on the upper portion of said carrier means intermediate said base stop means for relative movement of said base stop means and said carrier stop means with respect to each other from an operative position, in which said carrier stop means is in abutting disposition with said trailing base stop means and in which the planes of said base means, carrier means and leading and trailing link means form a substantially right parallelepiped having such slanted base axes means and carrier axes means as the corresponding planar apexes thereof, to an inoperative position, in which said carrier stop means is in abutting disposition with said leading base stop means and in which the planes of said base means, carrier means and leading and trailing link means form a substantially oblique parellelepiped having such slanted base axes means and carrier axes means as the corresponding planar apexes thereof.
  • each said link means is correspondingly replaceably connected via said axes means for interchange with alternate link means having a different transverse effective linking length.
  • said cutting tool means has a cutting point normally extending in said operative position transversely beyond the corresponding outer edge portion of said carrier means remote from said base means and downwardly beyond the corresponding lower edge portions of said base means, said carrier means, and said link means.
  • a mining planer adapted to be conducted longitudinally back and forth along a mine face adjacent the corresponding mine floor for extraction of mineral from such mine face
  • the improvement which comprises longi tudinally extending base means positioned on a corresponding longitudinal end of said planer at the bottom portion thereof adjacent the mine floor, longitudinally extending cutting tool carrier means transversely spaced from said base means, a pair of longitudinally spaced apart transversely extending link means articulatingly interconnecting said carrier means and base means in the form of a parallelogram, the upwardly extending sides of the parallelogram being slanted in the direction from said longitudinal end of the mining planer to the opposite longitudinal end thereof, and stop means operatively positioned with respect to said base means, carrier means and link means to permit said base means and carrier means to be limitedly displaced longitudinally relative to each other.
  • said carrier means is provided with a cutting tool thereon extending outwardly and downwardly therefrom in a direction remote from said base means and said link means for operatively engaging in said operative position simultaneously the adjacent portions of the mine face and mine floor thereat, and wherein the corresponding link means adjacent said cutting tool is provided with a correspondingly slanted slide surface extending downwardly to the mine floor for guiding extracted mineral material therebefore upwardly thereover to conduct such material onto a mining conveyor with which such mining planer is adapted to be associated.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Soil Working Implements (AREA)
  • Disintegrating Or Milling (AREA)
US542302A 1965-05-10 1966-04-13 Mining planer arrangement having a parallelogram-disposed articulatedly mounted cuttig means Expired - Lifetime US3382003A (en)

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DEG43548A DE1253658B (de) 1965-05-10 1965-05-10 Kohlenhobel mit schwenkbaren Meisseltraegern

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AT (1) AT258834B (US07642317-20100105-C00010.png)
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Publication number Priority date Publication date Assignee Title
US3469885A (en) * 1968-10-15 1969-09-30 Westinghouse Air Brake Co Oscillating cutter ripper miner
US3785704A (en) * 1971-04-17 1974-01-15 Gewerk Eisenhuette Westfalia Planer mining installation
US4178040A (en) * 1977-02-23 1979-12-11 Gewerkschaft Eisenhutte Westfalia Movable mining planer with direction responsive adjustable cutter depth

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Publication number Priority date Publication date Assignee Title
DE862433C (de) * 1944-04-12 1953-01-12 Gelsenkirchener Bergwerks Akti Kohlenhobel mit zusaetzlichem Hangendmesser
DE903805C (de) * 1943-02-26 1954-02-11 Preussische Bergwerks Und Huet Schaelendes Gewinnungsgeraet fuer Kohle und andere Mineralien
GB859464A (en) * 1958-10-10 1961-01-25 Gewerk Eisenhuette Westfalia Coal plough having a kerfing bit which is guided along the floor

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Publication number Priority date Publication date Assignee Title
DE968931C (de) * 1954-03-24 1958-04-10 Stamicarbon Kohlenhobel od. dgl. Maschine
DE1908213U (de) * 1964-11-02 1965-01-14 Gewerk Eisenhuette Westfalia Kohlenhobel mit klappenartigen meisseltraegern.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903805C (de) * 1943-02-26 1954-02-11 Preussische Bergwerks Und Huet Schaelendes Gewinnungsgeraet fuer Kohle und andere Mineralien
DE862433C (de) * 1944-04-12 1953-01-12 Gelsenkirchener Bergwerks Akti Kohlenhobel mit zusaetzlichem Hangendmesser
GB859464A (en) * 1958-10-10 1961-01-25 Gewerk Eisenhuette Westfalia Coal plough having a kerfing bit which is guided along the floor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469885A (en) * 1968-10-15 1969-09-30 Westinghouse Air Brake Co Oscillating cutter ripper miner
US3785704A (en) * 1971-04-17 1974-01-15 Gewerk Eisenhuette Westfalia Planer mining installation
US4178040A (en) * 1977-02-23 1979-12-11 Gewerkschaft Eisenhutte Westfalia Movable mining planer with direction responsive adjustable cutter depth

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Publication number Publication date
GB1112115A (en) 1968-05-01
AT258834B (de) 1967-12-11
DE1253658B (de) 1967-11-09
BE680729A (US07642317-20100105-C00010.png) 1966-11-09

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