FR2268942A1 - - Google Patents
Info
- Publication number
- FR2268942A1 FR2268942A1 FR7513030A FR7513030A FR2268942A1 FR 2268942 A1 FR2268942 A1 FR 2268942A1 FR 7513030 A FR7513030 A FR 7513030A FR 7513030 A FR7513030 A FR 7513030A FR 2268942 A1 FR2268942 A1 FR 2268942A1
- Authority
- FR
- France
- 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.)
- Withdrawn
Links
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
- E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/112—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
- E02F3/22—Component parts
- E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
- E02F3/245—Digging wheels; Digging elements of wheels; Drives for wheels with digging elements mounted movable relative to the wheel
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46519274A | 1974-04-29 | 1974-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2268942A1 true FR2268942A1 (ja) | 1975-11-21 |
Family
ID=23846826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7513030A Withdrawn FR2268942A1 (ja) | 1974-04-29 | 1975-04-25 |
Country Status (5)
Country | Link |
---|---|
CA (1) | CA1015376A (ja) |
DE (1) | DE2514507A1 (ja) |
FR (1) | FR2268942A1 (ja) |
GB (1) | GB1477752A (ja) |
ZA (1) | ZA751725B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107083965B (zh) * | 2017-06-09 | 2024-03-01 | 中国铁建重工集团股份有限公司 | 一种用于掘进设备的多刀盘驱动***、刀盘及掘进设备 |
CN112593957B (zh) * | 2020-12-03 | 2022-08-19 | 重庆文理学院 | 可远程控制式tbm施工的掘进测量机及使用方法 |
-
1975
- 1975-03-19 ZA ZA00751725A patent/ZA751725B/xx unknown
- 1975-03-20 CA CA222,709A patent/CA1015376A/en not_active Expired
- 1975-04-02 DE DE19752514507 patent/DE2514507A1/de active Pending
- 1975-04-25 FR FR7513030A patent/FR2268942A1/fr not_active Withdrawn
- 1975-04-28 GB GB1753775A patent/GB1477752A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU7955675A (en) | 1976-09-30 |
DE2514507A1 (de) | 1975-11-06 |
ZA751725B (en) | 1976-02-25 |
CA1015376A (en) | 1977-08-09 |
GB1477752A (en) | 1977-06-29 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |