US3841708A - Excavating tool device - Google Patents

Excavating tool device Download PDF

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Publication number
US3841708A
US3841708A US00263185A US26318572A US3841708A US 3841708 A US3841708 A US 3841708A US 00263185 A US00263185 A US 00263185A US 26318572 A US26318572 A US 26318572A US 3841708 A US3841708 A US 3841708A
Authority
US
United States
Prior art keywords
bore
tool
block
shank
rib
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
US00263185A
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English (en)
Inventor
T Kniff
D Leibee
S Oaks
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.)
Kennametal Inc
Original Assignee
Kennametal Inc
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 Kennametal Inc filed Critical Kennametal Inc
Priority to US00263185A priority Critical patent/US3841708A/en
Priority to ZA733960A priority patent/ZA733960B/xx
Priority to AU56878/73A priority patent/AU483577B2/en
Priority to CA174,064A priority patent/CA985711A/en
Priority to DE2330297A priority patent/DE2330297A1/de
Priority to JP6703173A priority patent/JPS545361B2/ja
Application granted granted Critical
Publication of US3841708A publication Critical patent/US3841708A/en
Priority to CA239,323A priority patent/CA988107A/en
Priority to CA239,324A priority patent/CA988108A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders

Definitions

  • ABSTRACT Cl 299/86 37/142 175/354 Ah excavating tool device in which a tool which is 175/413 299/92 symmetrical about a longitudinal axis is provided with [51] it.
  • a mounting rib detachably connected to a yoke which is adapted for being fixedly mounted on a drive member
  • Reierences cued such as the drum of a mining machine.
  • Another object of the present invention is the provision of a tool device and a mounting arrangement therefor which provides a wide variation of tool placements on the member which drives the tool.
  • a still further object is the provision of a tool device for mining and excavating machines which has long life and which includes easily replaceable parts to permit the machine to remain in service substantially without interruption.
  • FIG. 1 is a side view showing a tool device and a sup-, port arrangement therefor according to the presentinvention and mounted on a drum-like supporting member.
  • FIG. 2 is a view looking in from the right side of FIG. 1.
  • FIG. 4 is a view like FIG. 3 but shows a different type of keeper for holding the tool in the block.
  • FIG. 5 is a perspective view showing the retaining device or keeper according to FIG. 4.
  • FIG. 6 is a fragmentary sectional view showing a modified type of tool device.
  • FIG. 7 is a fragmentary view showing a heavy duty tool adapted for mounting in a support block.
  • FIG. 9 is a sectional view showing a block like that of FIG. 8 but with a one piece tool mounted in the bore thereof.
  • FIG. 10 is a perspective view partly broken away showing a modified form which the support yoke for the blocks can take.
  • FIG. 11 is a fragmentary view of a block similar to that of FIGS. 8 and 9 but showing the tool retained in the block by means of a keeper pin.
  • a yoke is provided adapted for mounting on a driven member of a mining or excavating machine.
  • the driven member may comprise a drum and the yoke is adapted for being fixed to the drum as by welding.
  • a block is provided having a support rib adapted for detachable connection with the yoke as by a connecting pin extending through aligned apertures in the yoke and the supporting rib on the block.
  • the block is provided with a bore which diverges from the surface of the supporting member in the direction in which the yoke and block are driven by the supporting member and this bore is adapted for rotatably receiving a tool concentric with, and symmetrical about, the axis of the bore and projecting therefrom in the forward direction.
  • the tool may comprise a single element consisting of a shank portion receivable in the bore in the block and a working portion projecting forwardly from the shank portion and protruding out the front of the block, or the tool may consist of a sleeve rotatable in the bore in the block with a tool of the above mentioned nature rotatably mounted in the sleeve and protruding from the forward end.
  • the support block which receives the tools comprises a supporting rib adapted for detachable connection to the yoke and a portion connected to the upper side of the rib in which the aforementioned bore is formed. This last mentioned portion can upstand from the leading end of the rib or from the trailing end thereof and, since the bore can receive tools of different lengths, and either one part or two part tool devices, a plurality of different cutting radii can easily be achieved with one and the same basic supporting and drive member with yokes mounted thereon.
  • the yokes are distributed axially and circumferentially of the driving member, such as a drum, and in this manner complete and continuous treatment of the entire formation presented to the drum is accomplished.
  • the tools will be disposed in radial planes perpendicular to the axis of the drum, but it is also possible for at least the tool device near the ends of the drum to be tilted axially outwardly thereby to make certain that the amount of the formation reduced by the tool devices on the drum will be at least as long as the drum.
  • yokes Secured to the drum in circumferentially and axially distributed relation are yokes which, in the illustrated modification, take the form of a pair of legs 12 and 14 in parallel spaced relation fixedly secured to the drum as by welding.
  • the yoke is adapted for detachable connection with a block generally indicated at 16 and having a rib portion 18 receivable in the space between legs 12 and 14.
  • Registering holes, 20 in rib 18, 22 in leg 12, and 24 in leg 14 receive a connector pin 26 which may be held in place in any suitable manner as, for example, by snap rings 28 snapped in grooves formed in the pin 26 immediately outside legs 12 and 14.
  • the axis of bore 46 will be seen to diverge from the surface of drum in thedirection in which the yoke and block are moved when drum 10- rotates in its working direction.
  • Bore 46 has a larger diameter leading part 48 and a smaller diameter trailing part 50 and a forwardly facing shoulder 52 at the juncture of the said parts and which shoulder tapers outwardly toward the leading side of the block.
  • Bore 46 rotatably receives a sleeve member 34 having a larger diameter forward portion and a smaller diameter rearward portion, indicated at 36 and 58 respectively with'a rearwardly facing shoulder 60 at the juncture of said portions engaging shoulder 52 of the bore in the block.
  • sleeve 54 protrudes outwardly from the leading end of bore 46 and comprises a radial flange 62 which may engage the front end of portion 38 of the block or which may be axially spaced therefrom.
  • the sleeve 54 in the FIG. I modification, extends completely through portion 38 of the block and is rotatably retained in the block by a keeper in the form of snap rings 64 seated in grooves in the rearwardly protruding portion of the sleeve.
  • Sleeve 54 is provided with a bore 66 adapted for receiving the shank 68 of a tool which has a working portion 70 projecting forwardly from the front end of the shank portion and terminating in a hard wear resistant tip 72 which may consist, for example, of a cylindrical insert of cemented tungsten carbide with a point at the outer end.
  • the shank portion of tool '70 is provided with an annular groove 76 in which is seated an annular resilient keeper element 78 having at least one radial protuberant portion thereon engaging annular recess 80 formed in the bore 66 in sleeve 54.
  • sleeve 54 is rotatably supported in the block and tool '70 is rotatably supported in the sleeve.
  • Working thrusts imposed on tool '70, and which will be substantially in the axial direction thereof, are transmitted to the sleeve via the tapered 4, interengaging seat regions formed thereon and these thrusts will, in turn, be transmitted from the sleeve to the block via the interengaging shoulders 52 and 60.
  • the thrusts exerted on the block are carried by the pin 26 and the interengaging abutment surfaces 32 and 34.
  • the arrangement illustrated for connecting the tools with the supporting member of the mining machine is also of considerable merit because it permits wide variation in the positioning of the working end of the tool to accommodate the assembly to different working conditions to permit the tool to be adapted to various types of machines.
  • block 90 has a shouldered bore 92 extending therethrough in which shouldered sleeve 94 is mounted.
  • the smaller diameter portion of sleeve 94 is provided with a somewhat elongated fairly shallow annular groove 96 and disposed in groove 96 is a resilient slit ring 98 having a protuberant region 100 thereon en gageable with the inwardly opening annular groove 102 formed in the smaller diameter portion of bore 92.
  • block is provided with a straight bore 112 extending therethrough which rotatably receives a sleeve 114 having a radial flange 116 at the front end of block Ht) which takes a bearing on the front end of the block.
  • Sleeve 114 can be retained in the block in any of the aforementioned manners and is shown as having snap rings I18 mounted thereon on that portion of the sleeve which protrudes from the back end of block I10.
  • the bit of FIG. 7 has a conical front end portion 128, the same as the tool bit 70 of the FIG. I modification, but, due to the larger dimensions of the body of the bit, a substantially larger pointed hard insert 130 can be mounted at the tip of the bit body.
  • the pointed insert 130 can be formed of cemented hard metal carbide material, such as tungsten carbide, the same as the pointed insert 72 of the FIG. I modification.
  • This exchange will permit the mining machine to proceed and to carry out heavy duty excavating operations and, at any time the formation ceases to be of such a nature to require a heavy duty bit, the heavy duty bit can be removed from the block and be replaced by a sleeve having a tool bit mounted therein.
  • FIG. 8 shows an arrangement somewhat similar to that of FIG. i and corresponding parts such as the drive member and the yoke bear the same reference numerals.
  • the bit and sleeve in FIG. 8 also correspond substantially to those illustrated in FIG. I, but the block supporting the sleeve and pick and connected to the yoke is different.
  • the block generally designated M0 has a web portion 142 disposed between the legs of the yoke and an upstanding portion I44 which is bored to receive the sleeve, but which is disposed near the rear end of web 142.
  • FIG. 9 shows a support block 150 of the same general type which has been described, except in the upstanding portion I52 there is provided a bore 154 for receiving the shank portion I56 of a bit 158.
  • the bore I54 is provided with a groove I60 and mounted on the shank of the bit is a spring clip retainer I62 which engages groove 160 when the bit is in place in the block and rotatably supports the pick in the block.
  • FIG. 10 shows a modified yoke having the legs 1'72 and I74 thereof integral with a base portion 176. Disposed between the leg portions and resting on the base portion is the abutment element 178 which is advantageously welded about its entire rearwardly facing peripheral edge to the yoke.
  • FIG. II shows a block 180 similar to that block shown in FIG. 8, but wherein the upstanding portion I82, and which is positioned toward the rear of the web portion I84 of the block, is a bore 186 for receiving the shank 188 of a pick type bit 190 and with the bit being rotatably confined within the block by a pin 192 in the block loosely engaging annular groove 194 in the shank of the bit.
  • a tool device for use with excavating equipment comprising; yoke means having a leading end and a trailing end and having a bottom side adapted for being fixedly mounted on a driving member which is movable to drive the yoke means toward the leading end thereof, said yoke means comprising spaced support legs extending in the fore and aft direction and projecting upwardly away from said member, block means comprising an upper portion and at least one rib dependent from said upper portion and extending in the fore and aft direction and disposed in parallel adjacent and at least in part coextensive relation to said support legs and also having leading and trailing ends, connector means extending transversely through the legs on the yoke means and said rib detachably connecting said block means to said yoke means, bore means extending into said upper portion of said block means from the leading end thereof in the fore and aft direction and so inclined that the axis thereof diverges from the bottom side of said yoke means in the direction of movement impart
  • a tool device in which said upper portion of said block means is connected to the trailing end-of the said rib.
  • a tool device in which said upper portion of said block means is connected to the leading end of the said rib.
  • a tool device in which the said bore means in the upper portion of said block means comprises a larger diameter portion adjacent the leading end of said block means and a smaller diameter portion adjacent the trailing end of said block means,
  • said bore portions being coaxial, and a forwardly facing shoulder at the juncture of said portions of said bore means
  • said tool means comprising shank means having a larger diameter leading portion and a smaller diameter trailing portion and a rearwardly facing shoulder at the juncture of said portions of said shank means, said shank means being rotatable in said bore means and the said shoulder on said tool means and the shoulder in said bore means being in thrust transmitting engagement when said shank means is disposed in said bore means, and keeper means carried by at least one of said block means and shank means and operatively engaging the other thereof for retaining said shank means in said bore means and preventing any substantial degree of axial movement of the shank means in the bore means while leaving said shank means free to rotate in said bore means.
  • a tool device in which said shank means is in the form of a sleeve having an axial bore therein, said tool means comprising a tool having a tool shank receivable in the axial bore in said sleeve from the front end of the sleeve, said tool having a working portion concentric with the axis of said tool shank and protruding forwardly therefrom, said elements of abutment means comprising a forwardly facing abutment surface on said sleeve and a rearwardly facing abutment surface on said tool in engagement therewith and a forwardly facing abutment surface in said bore means and a rearwardly facing abutment surface on said sleeve in engagement therewith, and a keeper means connecting said tool shank to said sleeve and said sleeve to said block means permitting free rotation of the tool shank in the sleeve and the sleeve in the bore means while preventing any substantial forward movement of the tool
  • said keeper means includes a resilient keeper element captive on said tool shank and said sleeve comprises internal recess means engageable by said keeper element when said tool shank is inserted into said sleeve.
  • a support block having leading and trailing ends, a bore extending in the sertable into said bore from the forward end of the bore and rotatable in the bore, forwardly facing abutment means on said block concentric with said bore for engagement with rearwardly facing abutment means on the tool, the said tool including a working portion concentric with the shank portion and protruding outwardly from the forward end of the bore when the shank portion is seated in the bore, keeper means adapted for operatively interconnecting said tool and block and preventing any substantial degree of axial movement of the tool in said bore while permitting free rotation of the tool in said bore, said block having at least one fore and aft rib integral therewith and projecting therefrom substantially in a plane which contains the axis of said bore, said rib including a lateral bore for receiving a pin for connection of the block to a support member, and means forming a rearwardly facing abutment region at the trailing end of said rib substantially perpen
  • a tool device in which said bore comprises a larger diameter forward portion and a smaller diameter rearward portion and said abutment means comprises a forwardly facing shoulder at the juncture of said bore portions.
  • a tool device in which said portions of said bore are about equal in axial length and said shoulder is in about the middle of the length of said bore.

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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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US00263185A 1972-06-15 1972-06-15 Excavating tool device Expired - Lifetime US3841708A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00263185A US3841708A (en) 1972-06-15 1972-06-15 Excavating tool device
ZA733960A ZA733960B (en) 1972-06-15 1973-06-12 Excavating tool device
AU56878/73A AU483577B2 (en) 1972-06-15 1973-06-13 Excavating tool device
DE2330297A DE2330297A1 (de) 1972-06-15 1973-06-14 Werkzeuganordnung bei bergbaulichen vortriebs- bzw. abbaumaschinen
CA174,064A CA985711A (en) 1972-06-15 1973-06-14 Excavating tool device
JP6703173A JPS545361B2 (enrdf_load_stackoverflow) 1972-06-15 1973-06-15
CA239,323A CA988107A (en) 1972-06-15 1975-11-10 Excavating tool device
CA239,324A CA988108A (en) 1972-06-15 1975-11-10 Excavating tool device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00263185A US3841708A (en) 1972-06-15 1972-06-15 Excavating tool device

Publications (1)

Publication Number Publication Date
US3841708A true US3841708A (en) 1974-10-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00263185A Expired - Lifetime US3841708A (en) 1972-06-15 1972-06-15 Excavating tool device

Country Status (5)

Country Link
US (1) US3841708A (enrdf_load_stackoverflow)
JP (1) JPS545361B2 (enrdf_load_stackoverflow)
CA (1) CA985711A (enrdf_load_stackoverflow)
DE (1) DE2330297A1 (enrdf_load_stackoverflow)
ZA (1) ZA733960B (enrdf_load_stackoverflow)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323865A1 (fr) * 1975-09-13 1977-04-08 Ugine Carbone Porte-pic, en particulier pour machine de havage
US4043599A (en) * 1975-10-17 1977-08-23 Kennecott Copper Corporation Acid preinjection to decrease instantaneous acid consumption in in-situ mining
US4247147A (en) * 1979-11-21 1981-01-27 Sandvik Aktiebolag Retainer clip for cutter bits
US4299424A (en) * 1979-12-03 1981-11-10 National Mine Service Company Cutting tool assembly
US4302055A (en) * 1978-02-27 1981-11-24 Sandvik Aktiebolag Wedgingly mounted tool holder or adapter for a cutting head
US4368919A (en) * 1980-02-26 1983-01-18 Coal Industry (Patents) Limited Holder assemblies for sensitized cutter tools on mining machines
US4489986A (en) * 1982-11-01 1984-12-25 Dziak William A Wear collar device for rotatable cutter bit
US4527641A (en) * 1981-03-12 1985-07-09 Hydroc Gesteinsbohrtechnik Gmbh Percussion tool
US4561698A (en) * 1984-06-21 1985-12-31 Beebe Donald E Wear protector for tooth brackets on roadway surface cutting machines
US4660890A (en) * 1985-08-06 1987-04-28 Mills Ronald D Rotatable cutting bit shield
US4693518A (en) * 1981-01-08 1987-09-15 Kennametal, Inc. Means for holding cutter bits
US4844550A (en) * 1987-07-21 1989-07-04 Beebe Donald E Wear protector for tooth brackets on roadway surface cutting machines
US4915455A (en) * 1988-11-09 1990-04-10 Joy Technologies Inc. Miner cutting bit holding apparatus
US5011229A (en) * 1988-11-09 1991-04-30 Joy Technologies Inc. Miner cutting bit holding apparatus
US5088797A (en) * 1990-09-07 1992-02-18 Joy Technologies Inc. Method and apparatus for holding a cutting bit
US5106166A (en) * 1990-09-07 1992-04-21 Joy Technologies Inc. Cutting bit holding apparatus
US5529384A (en) * 1994-08-25 1996-06-25 Rogers Tool Works, Inc. Bit holder block and cutter bit therefor
US5628549A (en) * 1995-12-13 1997-05-13 Kennametal Inc. Cutting tool sleeve rotation limitation system
US5725283A (en) * 1996-04-16 1998-03-10 Joy Mm Delaware, Inc. Apparatus for holding a cutting bit
US6000153A (en) * 1997-12-09 1999-12-14 Sollami; Jimmie L. Tooth attachment for earth working equipment
US6086160A (en) * 1908-11-09 2000-07-11 Bitelli Spa Toolholder for milling drums of scarifying machines
US6099081A (en) * 1997-09-06 2000-08-08 Hydra Tools International Limited Point attack tooling system for mineral winning
US20050127742A1 (en) * 2003-12-11 2005-06-16 River City Manufacturing Inc. Retaining system for securing a cutting tool to a support block
US20060006727A1 (en) * 2004-07-07 2006-01-12 Frear Joseph K Tool retainer
US20060261662A1 (en) * 2005-05-19 2006-11-23 Sollami Jimmie L Spring lock mechanism for a ground-engaging tool
US20060261663A1 (en) * 2005-05-19 2006-11-23 Sollami Jimmie L Spring lock mechanism for a ground-engaging
US20060279134A1 (en) * 2004-08-12 2006-12-14 Frear Joseph K Cutting tool wear sleeves and retention apparatuses
US20080030065A1 (en) * 2004-08-12 2008-02-07 Frear Joseph K Cutting tool retention apparatuses
US7380888B2 (en) * 2001-04-19 2008-06-03 Kennametal Inc. Rotatable cutting tool having retainer with dimples
US20080206002A1 (en) * 2007-02-27 2008-08-28 Sandvik Intellectual Property Ab Sleeve for reversible cutting tool
USD601592S1 (en) * 2009-03-27 2009-10-06 Richard Wayne Watson Pocket protecting retainable cutter bit
US20100038955A1 (en) * 2008-08-14 2010-02-18 Keller Donald E Bit holder block with non-rotating wear sleeve
US20110006588A1 (en) * 2009-07-13 2011-01-13 Sandvik Intellectual Property Ab Adaptive sleeve retainer for tool pick
US20150337657A1 (en) * 2013-01-04 2015-11-26 Suhua Liu Easily removable reciprocating impact head with anti-rotation insertion hole for mining machine
USD828859S1 (en) 2013-05-16 2018-09-18 Us Synthetic Corporation Cutting tool
US10323514B2 (en) 2013-05-16 2019-06-18 Us Synthetic Corporation Shear cutter pick milling system
US10408057B1 (en) 2014-07-29 2019-09-10 Apergy Bmcs Acquisition Corporation Material-removal systems, cutting tools therefor, and related methods
US10414069B2 (en) 2014-04-30 2019-09-17 Us Synthetic Corporation Cutting tool assemblies including superhard working surfaces, material-removing machines including cutting tool assemblies, and methods of use
US10648330B1 (en) * 2015-09-25 2020-05-12 Us Synthetic Corporation Cutting tool assemblies including superhard working surfaces, cutting tool mounting assemblies, material-removing machines including the same, and methods of use

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT341978B (de) * 1976-04-14 1978-03-10 Voest Ag Rundmeissel
DE3341321C2 (de) * 1983-11-15 1986-04-24 Ruhrkohle Ag, 4300 Essen Anordnung der Schneidmeißelhalterung am Schneidkörper
JPS63104487U (enrdf_load_stackoverflow) * 1986-12-23 1988-07-06
GB9704554D0 (en) * 1997-03-05 1997-04-23 Bingham Engineering Ltd Semi-locking pick box assembly

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US1468866A (en) * 1918-12-12 1923-09-25 Executrix Olive Eugenie Morgan Cutting chain
US3397012A (en) * 1966-12-19 1968-08-13 Cincinnati Mine Machinery Co Cutter bits and means for mounting them
US3498677A (en) * 1968-10-30 1970-03-03 Bowdil Co Cutting apparatus
US3811343A (en) * 1969-06-04 1974-05-21 Nissan Motor Gear train arrangements

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GB1218308A (en) * 1969-08-11 1971-01-06 Kennametal Inc Mining tool

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US1468866A (en) * 1918-12-12 1923-09-25 Executrix Olive Eugenie Morgan Cutting chain
US3397012A (en) * 1966-12-19 1968-08-13 Cincinnati Mine Machinery Co Cutter bits and means for mounting them
US3498677A (en) * 1968-10-30 1970-03-03 Bowdil Co Cutting apparatus
US3811343A (en) * 1969-06-04 1974-05-21 Nissan Motor Gear train arrangements

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6086160A (en) * 1908-11-09 2000-07-11 Bitelli Spa Toolholder for milling drums of scarifying machines
FR2323865A1 (fr) * 1975-09-13 1977-04-08 Ugine Carbone Porte-pic, en particulier pour machine de havage
US4043599A (en) * 1975-10-17 1977-08-23 Kennecott Copper Corporation Acid preinjection to decrease instantaneous acid consumption in in-situ mining
US4302055A (en) * 1978-02-27 1981-11-24 Sandvik Aktiebolag Wedgingly mounted tool holder or adapter for a cutting head
US4247147A (en) * 1979-11-21 1981-01-27 Sandvik Aktiebolag Retainer clip for cutter bits
US4299424A (en) * 1979-12-03 1981-11-10 National Mine Service Company Cutting tool assembly
US4368919A (en) * 1980-02-26 1983-01-18 Coal Industry (Patents) Limited Holder assemblies for sensitized cutter tools on mining machines
US4693518A (en) * 1981-01-08 1987-09-15 Kennametal, Inc. Means for holding cutter bits
US4527641A (en) * 1981-03-12 1985-07-09 Hydroc Gesteinsbohrtechnik Gmbh Percussion tool
US4489986A (en) * 1982-11-01 1984-12-25 Dziak William A Wear collar device for rotatable cutter bit
US4561698A (en) * 1984-06-21 1985-12-31 Beebe Donald E Wear protector for tooth brackets on roadway surface cutting machines
US4660890A (en) * 1985-08-06 1987-04-28 Mills Ronald D Rotatable cutting bit shield
US4844550A (en) * 1987-07-21 1989-07-04 Beebe Donald E Wear protector for tooth brackets on roadway surface cutting machines
US4915455A (en) * 1988-11-09 1990-04-10 Joy Technologies Inc. Miner cutting bit holding apparatus
US5011229A (en) * 1988-11-09 1991-04-30 Joy Technologies Inc. Miner cutting bit holding apparatus
US5302005A (en) * 1990-09-07 1994-04-12 Joy Technologies Inc. Apparatus for holding a cutting bit
US5088797A (en) * 1990-09-07 1992-02-18 Joy Technologies Inc. Method and apparatus for holding a cutting bit
US5106166A (en) * 1990-09-07 1992-04-21 Joy Technologies Inc. Cutting bit holding apparatus
US5529384A (en) * 1994-08-25 1996-06-25 Rogers Tool Works, Inc. Bit holder block and cutter bit therefor
US5628549A (en) * 1995-12-13 1997-05-13 Kennametal Inc. Cutting tool sleeve rotation limitation system
GB2322656B (en) * 1995-12-13 2000-05-17 Kennametal Inc Cutting tool sleeve rotation limitation system
US5725283A (en) * 1996-04-16 1998-03-10 Joy Mm Delaware, Inc. Apparatus for holding a cutting bit
US6099081A (en) * 1997-09-06 2000-08-08 Hydra Tools International Limited Point attack tooling system for mineral winning
US6000153A (en) * 1997-12-09 1999-12-14 Sollami; Jimmie L. Tooth attachment for earth working equipment
US7380888B2 (en) * 2001-04-19 2008-06-03 Kennametal Inc. Rotatable cutting tool having retainer with dimples
US20050127742A1 (en) * 2003-12-11 2005-06-16 River City Manufacturing Inc. Retaining system for securing a cutting tool to a support block
US20060006727A1 (en) * 2004-07-07 2006-01-12 Frear Joseph K Tool retainer
US7380889B2 (en) * 2004-07-07 2008-06-03 Frear Joseph K Tool retainer
US7618098B2 (en) 2004-08-12 2009-11-17 Frear Joseph K Cutting tool retention apparatuses
US20060279134A1 (en) * 2004-08-12 2006-12-14 Frear Joseph K Cutting tool wear sleeves and retention apparatuses
US7300114B2 (en) 2004-08-12 2007-11-27 Frear Joseph K Cutting tool wear sleeves and retention apparatuses
US20080030065A1 (en) * 2004-08-12 2008-02-07 Frear Joseph K Cutting tool retention apparatuses
US20060261662A1 (en) * 2005-05-19 2006-11-23 Sollami Jimmie L Spring lock mechanism for a ground-engaging tool
US20060261663A1 (en) * 2005-05-19 2006-11-23 Sollami Jimmie L Spring lock mechanism for a ground-engaging
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US8414084B2 (en) 2009-07-13 2013-04-09 Sandvik Intellectual Property Ab Adaptive sleeve retainer for tool pick
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US10316660B2 (en) 2013-05-16 2019-06-11 Apergy Bmcs Acquisition Corporation Pick including polycrystalline diamond compact
USD828859S1 (en) 2013-05-16 2018-09-18 Us Synthetic Corporation Cutting tool
US10323514B2 (en) 2013-05-16 2019-06-18 Us Synthetic Corporation Shear cutter pick milling system
USD860275S1 (en) 2013-05-16 2019-09-17 Apergy Bmcs Acquisition Corporation Cutting tool
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US11156087B2 (en) 2013-05-16 2021-10-26 Apergy Bmcs Acquisition Corporation Pick including polycrystalline diamond compact
US11585215B2 (en) 2013-05-16 2023-02-21 Us Synthetic Corporation Pick including polycrystalline diamond compact
US11926972B2 (en) 2013-05-16 2024-03-12 Us Synthetic Corporation Shear cutter pick milling system
US10414069B2 (en) 2014-04-30 2019-09-17 Us Synthetic Corporation Cutting tool assemblies including superhard working surfaces, material-removing machines including cutting tool assemblies, and methods of use
US11078635B2 (en) 2014-04-30 2021-08-03 Apergy Bmcs Acquisition Corporation Cutting tool assemblies including superhard working surfaces, material-removing machines including cutting tool assemblies, and methods of use
US10408057B1 (en) 2014-07-29 2019-09-10 Apergy Bmcs Acquisition Corporation Material-removal systems, cutting tools therefor, and related methods
US11021953B1 (en) 2014-07-29 2021-06-01 Apergy Bmcs Acquisition Corporation Material-removal systems, cutting tools therefor, and related methods
US10648330B1 (en) * 2015-09-25 2020-05-12 Us Synthetic Corporation Cutting tool assemblies including superhard working surfaces, cutting tool mounting assemblies, material-removing machines including the same, and methods of use

Also Published As

Publication number Publication date
CA985711A (en) 1976-03-16
AU5687873A (en) 1974-12-19
JPS545361B2 (enrdf_load_stackoverflow) 1979-03-16
JPS4952101A (enrdf_load_stackoverflow) 1974-05-21
DE2330297A1 (de) 1974-01-10
ZA733960B (en) 1974-05-29

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