ZA7902463B - Cutting machinery - Google Patents

Cutting machinery

Info

Publication number
ZA7902463B
ZA7902463B ZA792463A ZA7902463A ZA7902463B ZA 7902463 B ZA7902463 B ZA 7902463B ZA 792463 A ZA792463 A ZA 792463A ZA 7902463 A ZA7902463 A ZA 7902463A ZA 7902463 B ZA7902463 B ZA 7902463B
Authority
ZA
South Africa
Prior art keywords
cutting machinery
machinery
cutting
Prior art date
Application number
ZA792463A
Inventor
J Goff
A Spence
Original Assignee
Winster Mining Ltd
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
Priority to GB2512778 priority Critical
Application filed by Winster Mining Ltd filed Critical Winster Mining Ltd
Publication of ZA7902463B publication Critical patent/ZA7902463B/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Miscellaneous items relating to machines for slitting or completely freeing the mineral from the seam
    • E21C35/18Mining picks; Holders therefor
    • E21C35/19Means for fixing picks or holders
    • E21C35/193Means for fixing picks or holders using bolts as main fixing elements
    • E21C35/1936Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C25/00Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10Rods; Drums
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Miscellaneous items relating to machines for slitting or completely freeing the mineral from the seam
    • E21C35/18Mining picks; Holders therefor
    • E21C35/19Means for fixing picks or holders
    • E21C2035/191Means for fixing picks or holders for fixing holders
ZA792463A 1978-05-31 1979-05-21 Cutting machinery ZA7902463B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2512778 1978-05-31

Publications (1)

Publication Number Publication Date
ZA7902463B true ZA7902463B (en) 1980-05-28

Family

ID=10222648

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA792463A ZA7902463B (en) 1978-05-31 1979-05-21 Cutting machinery

Country Status (3)

Country Link
US (1) US4268089A (en)
DE (1) DE2921175A1 (en)
ZA (1) ZA7902463B (en)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480873A (en) * 1983-01-07 1984-11-06 Latham Winchester E Flighting section and tooth holder
US4836613A (en) * 1984-10-09 1989-06-06 Adam Roger F J Cutterhead for water jet assisted cutting
US4697850A (en) * 1986-02-06 1987-10-06 Dynapac Mfg. Inc. Cutter drum for pavement profiler
DE3909695C2 (en) * 1989-03-23 1992-10-01 Wirtgen Gmbh, 5469 Windhagen, De
US5052757A (en) * 1990-06-11 1991-10-01 Keystone Engineering & Manufacturing Corporation Flighting section and tooth holder
US5078540A (en) * 1990-08-24 1992-01-07 Astec Industries, Inc. Asphalt pavement milling machine and cutter drum therefor
US5125720A (en) * 1990-10-24 1992-06-30 Koehring Company Mounting arrangement for cutter socket
US5230548A (en) * 1992-08-21 1993-07-27 Southern Philip W Longwall cutter drum having reduced production of dust
US5582468A (en) * 1995-08-15 1996-12-10 Keystone Engineering & Manufacturing Corporation Double tooth cutter
US5884979A (en) * 1997-04-17 1999-03-23 Keystone Engineering & Manufacturing Corporation Cutting bit holder and support surface
DE10128518A1 (en) * 2001-06-13 2002-12-19 Ahwi Maschb Gmbh Rotor system for a rotary or mine hoe comprises tool support plates removably connected to a base rotor
US20030230926A1 (en) * 2003-05-23 2003-12-18 Mondy Michael C. Rotating cutter bit assembly having hardfaced block and wear washer
US7950746B2 (en) * 2006-06-16 2011-05-31 Schlumberger Technology Corporation Attack tool for degrading materials
US8123302B2 (en) 2006-08-11 2012-02-28 Schlumberger Technology Corporation Impact tool
US8622155B2 (en) 2006-08-11 2014-01-07 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
US8590644B2 (en) 2006-08-11 2013-11-26 Schlumberger Technology Corporation Downhole drill bit
US7669674B2 (en) * 2006-08-11 2010-03-02 Hall David R Degradation assembly
US7637574B2 (en) 2006-08-11 2009-12-29 Hall David R Pick assembly
US9051795B2 (en) 2006-08-11 2015-06-09 Schlumberger Technology Corporation Downhole drill bit
US8201892B2 (en) 2006-08-11 2012-06-19 Hall David R Holder assembly
US8485609B2 (en) * 2006-08-11 2013-07-16 Schlumberger Technology Corporation Impact tool
US8567532B2 (en) 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US9145742B2 (en) 2006-08-11 2015-09-29 Schlumberger Technology Corporation Pointed working ends on a drill bit
US8414085B2 (en) * 2006-08-11 2013-04-09 Schlumberger Technology Corporation Shank assembly with a tensioned element
US8500209B2 (en) * 2006-08-11 2013-08-06 Schlumberger Technology Corporation Manually rotatable tool
US7568770B2 (en) 2006-06-16 2009-08-04 Hall David R Superhard composite material bonded to a steel body
US8714285B2 (en) 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US7997661B2 (en) * 2006-08-11 2011-08-16 Schlumberger Technology Corporation Tapered bore in a pick
US8033616B2 (en) 2006-08-11 2011-10-11 Schlumberger Technology Corporation Braze thickness control
US7992945B2 (en) * 2006-08-11 2011-08-09 Schlumberger Technology Corporation Hollow pick shank
US7871133B2 (en) 2006-08-11 2011-01-18 Schlumberger Technology Corporation Locking fixture
US8007051B2 (en) 2006-08-11 2011-08-30 Schlumberger Technology Corporation Shank assembly
US7980582B2 (en) * 2006-08-09 2011-07-19 Atc Leasing Company Llc Front tow extended saddle
US7413256B2 (en) * 2006-08-11 2008-08-19 Hall David R Washer for a degradation assembly
US8449040B2 (en) 2006-08-11 2013-05-28 David R. Hall Shank for an attack tool
US20090058174A1 (en) * 2006-08-11 2009-03-05 Hall David R Attack Tool
US7320505B1 (en) 2006-08-11 2008-01-22 Hall David R Attack tool
US8215420B2 (en) 2006-08-11 2012-07-10 Schlumberger Technology Corporation Thermally stable pointed diamond with increased impact resistance
US7445294B2 (en) * 2006-08-11 2008-11-04 Hall David R Attack tool
US7419224B2 (en) * 2006-08-11 2008-09-02 Hall David R Sleeve in a degradation assembly
US7384105B2 (en) * 2006-08-11 2008-06-10 Hall David R Attack tool
US7338135B1 (en) * 2006-08-11 2008-03-04 Hall David R Holder for a degradation assembly
US7464993B2 (en) * 2006-08-11 2008-12-16 Hall David R Attack tool
US9068410B2 (en) 2006-10-26 2015-06-30 Schlumberger Technology Corporation Dense diamond body
US8109349B2 (en) * 2006-10-26 2012-02-07 Schlumberger Technology Corporation Thick pointed superhard material
US8960337B2 (en) 2006-10-26 2015-02-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
US8403595B2 (en) * 2006-12-01 2013-03-26 David R. Hall Plurality of liquid jet nozzles and a blower mechanism that are directed into a milling chamber
US7976238B2 (en) * 2006-12-01 2011-07-12 Hall David R End of a moldboard positioned proximate a milling drum
US8485756B2 (en) * 2006-12-01 2013-07-16 David R. Hall Heated liquid nozzles incorporated into a moldboard
US9051794B2 (en) * 2007-04-12 2015-06-09 Schlumberger Technology Corporation High impact shearing element
US7926883B2 (en) 2007-05-15 2011-04-19 Schlumberger Technology Corporation Spring loaded pick
US8038223B2 (en) 2007-09-07 2011-10-18 Schlumberger Technology Corporation Pick with carbide cap
US20090224596A1 (en) * 2008-03-07 2009-09-10 Cooper Mark R Cutting Elements Disposed On A Drum
US8540037B2 (en) * 2008-04-30 2013-09-24 Schlumberger Technology Corporation Layered polycrystalline diamond
US8322796B2 (en) 2009-04-16 2012-12-04 Schlumberger Technology Corporation Seal with contact element for pick shield
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
US20100326740A1 (en) * 2009-06-26 2010-12-30 Hall David R Bonded Assembly Having Low Residual Stress
US8262168B2 (en) 2010-09-22 2012-09-11 Hall David R Multiple milling drums secured to the underside of a single milling machine
GB201219124D0 (en) * 2012-10-24 2012-12-05 Richard Campey Ltd Turf treatment implement

Also Published As

Publication number Publication date
US4268089A (en) 1981-05-19
DE2921175A1 (en) 1979-12-06

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