ZA705310B - Improvements in rock boring machinery - Google Patents
Improvements in rock boring machineryInfo
- Publication number
- ZA705310B ZA705310B ZA705310*A ZA705310A ZA705310B ZA 705310 B ZA705310 B ZA 705310B ZA 705310 A ZA705310 A ZA 705310A ZA 705310 B ZA705310 B ZA 705310B
- Authority
- ZA
- South Africa
- Prior art keywords
- rock boring
- boring machinery
- machinery
- rock
- boring
- Prior art date
Links
- 239000011435 rock Substances 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA705310*A ZA705310B (en) | 1970-07-31 | 1970-07-31 | Improvements in rock boring machinery |
CA118,829,A CA950484A (en) | 1970-07-31 | 1971-07-22 | Rock boring machinery |
GB3489371A GB1327289A (en) | 1970-07-31 | 1971-07-26 | Rock boring machines |
US00166022A US3749448A (en) | 1970-07-31 | 1971-07-26 | Rock boring machine with swinging hammers and steering |
AU31675/71A AU465771B2 (en) | 1970-07-31 | 1971-07-27 | Improvements in rock boring machinery |
DE19712138013 DE2138013A1 (en) | 1970-07-31 | 1971-07-29 | Rock drilling machine |
JP46056429A JPS5250722B1 (en) | 1970-07-31 | 1971-07-29 | |
SE09825/71A SE370098B (en) | 1970-07-31 | 1971-07-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA705310*A ZA705310B (en) | 1970-07-31 | 1970-07-31 | Improvements in rock boring machinery |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA705310B true ZA705310B (en) | 1971-09-29 |
Family
ID=25562327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA705310*A ZA705310B (en) | 1970-07-31 | 1970-07-31 | Improvements in rock boring machinery |
Country Status (8)
Country | Link |
---|---|
US (1) | US3749448A (en) |
JP (1) | JPS5250722B1 (en) |
AU (1) | AU465771B2 (en) |
CA (1) | CA950484A (en) |
DE (1) | DE2138013A1 (en) |
GB (1) | GB1327289A (en) |
SE (1) | SE370098B (en) |
ZA (1) | ZA705310B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4371210A (en) * | 1978-04-10 | 1983-02-01 | Kennametal Inc. | Freely rotatable pick bit holder on rotary driven member and method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1195396A (en) * | 1916-08-22 | recen | ||
US3061288A (en) * | 1959-06-15 | 1962-10-30 | Goodman Mfg Co | Steering means for rotary head tunneling machine |
US3437380A (en) * | 1967-11-06 | 1969-04-08 | Alkirk Inc | Steering method and apparatus |
-
1970
- 1970-07-31 ZA ZA705310*A patent/ZA705310B/en unknown
-
1971
- 1971-07-22 CA CA118,829,A patent/CA950484A/en not_active Expired
- 1971-07-26 US US00166022A patent/US3749448A/en not_active Expired - Lifetime
- 1971-07-26 GB GB3489371A patent/GB1327289A/en not_active Expired
- 1971-07-27 AU AU31675/71A patent/AU465771B2/en not_active Expired
- 1971-07-29 DE DE19712138013 patent/DE2138013A1/en active Pending
- 1971-07-29 JP JP46056429A patent/JPS5250722B1/ja active Pending
- 1971-07-30 SE SE09825/71A patent/SE370098B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AU465771B2 (en) | 1975-10-09 |
JPS5250722B1 (en) | 1977-12-27 |
DE2138013A1 (en) | 1972-02-03 |
CA950484A (en) | 1974-07-02 |
SE370098B (en) | 1974-09-30 |
US3749448A (en) | 1973-07-31 |
AU3167571A (en) | 1973-02-01 |
GB1327289A (en) | 1973-08-22 |
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