CA945181A - Rock boring machinery - Google Patents
Rock boring machineryInfo
- Publication number
- CA945181A CA945181A CA118,830A CA118830A CA945181A CA 945181 A CA945181 A CA 945181A CA 118830 A CA118830 A CA 118830A CA 945181 A CA945181 A CA 945181A
- Authority
- CA
- Canada
- Prior art keywords
- rock boring
- boring machinery
- machinery
- rock
- boring
- 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
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
- E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA705311*A ZA705311B (en) | 1970-07-31 | 1970-07-31 | Improvements in rock boring machinery |
Publications (1)
Publication Number | Publication Date |
---|---|
CA945181A true CA945181A (en) | 1974-04-09 |
Family
ID=25562328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA118,830A Expired CA945181A (en) | 1970-07-31 | 1971-07-22 | Rock boring machinery |
Country Status (8)
Country | Link |
---|---|
US (1) | US3765725A (en) |
JP (1) | JPS5218642B1 (en) |
AU (1) | AU468246B2 (en) |
CA (1) | CA945181A (en) |
DE (1) | DE2138012A1 (en) |
GB (1) | GB1352447A (en) |
SE (1) | SE383645B (en) |
ZA (1) | ZA705311B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035024A (en) * | 1975-12-15 | 1977-07-12 | Jarva, Inc. | Hard rock trench cutting machine |
CN106477036A (en) * | 2016-11-29 | 2017-03-08 | 四川特飞科技股份有限公司 | A kind of rectangle combination duct aircraft and its flight control system and method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1195396A (en) * | 1916-08-22 | recen | ||
US1659942A (en) * | 1926-02-06 | 1928-02-21 | Anthony E Carlson | Rock-tunneling machine |
DE609860C (en) * | 1930-03-25 | 1935-02-26 | Ludwig Hammer | Rock drilling machine |
US2466709A (en) * | 1944-10-02 | 1949-04-12 | Richard D Karr | Tunneling machine |
US2827274A (en) * | 1955-02-11 | 1958-03-18 | Consolidation Coal Co | Continuous mining machine with roof contacting means |
-
1970
- 1970-07-31 ZA ZA705311*A patent/ZA705311B/en unknown
-
1971
- 1971-07-22 CA CA118,830A patent/CA945181A/en not_active Expired
- 1971-07-26 US US00165904A patent/US3765725A/en not_active Expired - Lifetime
- 1971-07-26 GB GB3489271A patent/GB1352447A/en not_active Expired
- 1971-07-27 AU AU31674/71A patent/AU468246B2/en not_active Expired
- 1971-07-29 JP JP46056428A patent/JPS5218642B1/ja active Pending
- 1971-07-29 DE DE19712138012 patent/DE2138012A1/en active Pending
- 1971-07-30 SE SE7109826A patent/SE383645B/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1352447A (en) | 1974-05-08 |
JPS5218642B1 (en) | 1977-05-23 |
US3765725A (en) | 1973-10-16 |
AU3167471A (en) | 1973-02-01 |
ZA705311B (en) | 1971-09-29 |
AU468246B2 (en) | 1976-01-08 |
SE383645B (en) | 1976-03-22 |
DE2138012A1 (en) | 1972-02-03 |
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