DE3900140C1 - - Google Patents
Info
- Publication number
- DE3900140C1 DE3900140C1 DE3900140A DE3900140A DE3900140C1 DE 3900140 C1 DE3900140 C1 DE 3900140C1 DE 3900140 A DE3900140 A DE 3900140A DE 3900140 A DE3900140 A DE 3900140A DE 3900140 C1 DE3900140 C1 DE 3900140C1
- Authority
- DE
- Germany
- Prior art keywords
- chisel
- bolt
- thread
- screw
- extraction tool
- 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
Links
- 238000000605 extraction Methods 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000005065 mining Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- 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
- E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
- E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/005—Nuts or like thread-engaging members into which threads are cut during screwing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3900140A DE3900140C1 (US20030199744A1-20031023-C00003.png) | 1989-01-04 | 1989-01-04 | |
GB8924978A GB2226835B (en) | 1989-01-04 | 1989-11-06 | Mining tool |
SU894742505A SU1745129A3 (ru) | 1989-01-04 | 1989-11-13 | Рабочий орган добычной машины |
US07/444,018 US4998778A (en) | 1989-01-04 | 1989-11-30 | Mining tool including a chisel and a chisel holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3900140A DE3900140C1 (US20030199744A1-20031023-C00003.png) | 1989-01-04 | 1989-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3900140C1 true DE3900140C1 (US20030199744A1-20031023-C00003.png) | 1990-08-16 |
Family
ID=6371586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3900140A Expired - Lifetime DE3900140C1 (US20030199744A1-20031023-C00003.png) | 1989-01-04 | 1989-01-04 |
Country Status (4)
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9306577U1 (de) * | 1993-05-01 | 1993-07-01 | Braun, Ernst, 4300 Essen | Gewinnungswerkzeug |
US5735656A (en) * | 1995-12-19 | 1998-04-07 | Textron Inc. | Self-sealing through adjustor |
DE20320163U1 (de) * | 2003-12-29 | 2004-03-04 | Dbt Gmbh | Meißelhalter für einen Hobelmeißel |
DE20320161U1 (de) * | 2003-12-29 | 2004-03-04 | Dbt Gmbh | Meißelhalter für einen Hobelmeißel eines Kohlen- oder Gewinnungshobels und Hobelmeißel |
USD669505S1 (en) * | 2011-11-23 | 2012-10-23 | Wirtgen Gmbh | Chisel holder bar |
CN104047601A (zh) * | 2013-03-16 | 2014-09-17 | 中煤张家口煤矿机械有限责任公司 | 用于刨煤机刀具的紧固装置 |
CN105452603B (zh) | 2013-06-18 | 2018-06-29 | 埃斯科公司 | 矿物开采尖头、尖头保持器、滚筒和组合 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3411602A1 (de) * | 1982-11-13 | 1985-10-03 | Peters, Albert, 4000 Düsseldorf | Gewinnungseinrichtung mit dreh-kippmeissel und abgedichteter meisseltasche |
GB2164679A (en) * | 1984-09-21 | 1986-03-26 | Spencer Todwick Limited | Tool retaining devices |
DE8633094U1 (de) * | 1986-12-10 | 1987-02-19 | Halbach & Braun Industrieanlagen, 5600 Wuppertal | Werkzeugaggregat für Gewinnungsmaschinen, insbesondere Kohlenhobel oder Schrämmaschinen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE795710A (fr) * | 1972-09-14 | 1973-06-18 | Gewerk Eisenhuette Westfalia | Pic, en particulier pour rabot a charbon ou engin equivalent |
DE3116424A1 (de) * | 1981-04-24 | 1982-11-11 | Hilti AG, 9494 Schaan | Duebel |
DE3122868C2 (de) * | 1981-06-10 | 1986-06-26 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hobelmeißelbefestigung, insbesondere für Kohlenhobel |
DE3731459C1 (de) * | 1987-09-18 | 1989-03-16 | Hoesch Ag | Schneidrad fuer Saug- oder Schaufelradbagger |
-
1989
- 1989-01-04 DE DE3900140A patent/DE3900140C1/de not_active Expired - Lifetime
- 1989-11-06 GB GB8924978A patent/GB2226835B/en not_active Expired - Fee Related
- 1989-11-13 SU SU894742505A patent/SU1745129A3/ru active
- 1989-11-30 US US07/444,018 patent/US4998778A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3411602A1 (de) * | 1982-11-13 | 1985-10-03 | Peters, Albert, 4000 Düsseldorf | Gewinnungseinrichtung mit dreh-kippmeissel und abgedichteter meisseltasche |
GB2164679A (en) * | 1984-09-21 | 1986-03-26 | Spencer Todwick Limited | Tool retaining devices |
DE8633094U1 (de) * | 1986-12-10 | 1987-02-19 | Halbach & Braun Industrieanlagen, 5600 Wuppertal | Werkzeugaggregat für Gewinnungsmaschinen, insbesondere Kohlenhobel oder Schrämmaschinen |
Also Published As
Publication number | Publication date |
---|---|
SU1745129A3 (ru) | 1992-06-30 |
GB2226835A (en) | 1990-07-11 |
US4998778A (en) | 1991-03-12 |
GB8924978D0 (en) | 1989-12-28 |
GB2226835B (en) | 1992-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of patent without earlier publication of application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: DBT DEUTSCHE BERGBAU-TECHNIK GMBH, 45128 ESSEN, DE |
|
8339 | Ceased/non-payment of the annual fee |