ES253938Y - A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS. - Google Patents
A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS.Info
- Publication number
- ES253938Y ES253938Y ES1979253938U ES253938U ES253938Y ES 253938 Y ES253938 Y ES 253938Y ES 1979253938 U ES1979253938 U ES 1979253938U ES 253938 U ES253938 U ES 253938U ES 253938 Y ES253938 Y ES 253938Y
- Authority
- ES
- Spain
- Prior art keywords
- perforation
- blades
- shield
- underground works
- underground
- 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
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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0692—Cutter drive shields
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)
- Excavating Of Shafts Or Tunnels (AREA)
- Cleaning In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782850270 DE2850270C2 (en) | 1978-11-20 | 1978-11-20 | Propulsion shield for driving tunnels, underground channels or the like. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES253938U ES253938U (en) | 1981-09-01 |
ES253938Y true ES253938Y (en) | 1982-02-16 |
Family
ID=6055136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES1979253938U Expired ES253938Y (en) | 1978-11-20 | 1979-11-19 | A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS. |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5581999A (en) |
AT (1) | AT362416B (en) |
DE (1) | DE2850270C2 (en) |
ES (1) | ES253938Y (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3206717A1 (en) * | 1982-02-25 | 1983-09-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | KNIFE CYLINDER CONNECTION FOR KNIFE BLADES |
JP6568894B2 (en) * | 2017-05-26 | 2019-08-28 | 植村 誠 | Open shield machine |
CN112222658B (en) * | 2020-09-28 | 2022-09-30 | 中船黄埔文冲船舶有限公司 | Embedded grotto building method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2461241B2 (en) * | 1974-12-23 | 1976-11-25 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | PRE-PRESSABLE CYLINDRICAL LINING FOR TUNNEL, CLUTCH OR DRAFT DRIVES ETC., IN PARTICULAR SHELVING SIGN |
DE2743046A1 (en) * | 1977-09-24 | 1979-04-05 | Gewerk Eisenhuette Westfalia | LIFTING SIGN FOR DRIVING TUNNELS, CLOUDS OR DGL. |
-
1978
- 1978-11-20 DE DE19782850270 patent/DE2850270C2/en not_active Expired
-
1979
- 1979-09-24 AT AT625279A patent/AT362416B/en not_active IP Right Cessation
- 1979-11-19 ES ES1979253938U patent/ES253938Y/en not_active Expired
- 1979-11-20 JP JP14961679A patent/JPS5581999A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2850270A1 (en) | 1980-05-29 |
DE2850270C2 (en) | 1986-06-26 |
ES253938U (en) | 1981-09-01 |
ATA625279A (en) | 1980-10-15 |
JPS5581999A (en) | 1980-06-20 |
AT362416B (en) | 1981-05-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT7924547A0 (en) | IMPROVED TURBOMACHINE BLADE. | |
ES479988A0 (en) | A PROCEDURE FOR THE PREPARATION OF NEW DERIVATIVES - HETE ROCICLICOS. | |
IT7920750A0 (en) | PROCEDURE FOR FRACTUREING UNDERGROUND FORMATIONS. | |
ES486782A0 (en) | A PROCEDURE FOR THE PREPARATION OF IMIDA-ZOL DERIVATIVES. | |
ES477509A0 (en) | A PROCEDURE FOR THE PREPARATION OF PHENYL-PIPERACINE DERIVATIVES. | |
IT7819052A0 (en) | IMPROVED CROSS HELICOPTER ROTOR. | |
NO793967L (en) | CABLE CUTTER. | |
NL7800077A (en) | GASTURBINE INSTALLATION. | |
NO794245L (en) | CUTTING BLADES | |
ES486425A0 (en) | A PROCEDURE FOR PREPARING NEW 4-ARYLPIPERINES. | |
IT7828323A0 (en) | PUSH CENTRIFUGAL. | |
ES537650A0 (en) | A PROCEDURE TO PREPARE NEW MILBEMICINE DERIVATIVES. | |
ES484382A0 (en) | A PROCEDURE FOR THE PREPARATION OF NEW DERIVATIVES OF 2-PIRROLIDIN-METHANOL. | |
ES482027A0 (en) | A PROCEDURE FOR THE PREPARATION OF NEW FENETILAMINA DERIVATIVES. | |
ES493760A0 (en) | A PROCEDURE FOR PREPARING BENZOXAZEPINES. | |
ES253938Y (en) | A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS. | |
ES507045A0 (en) | A PROCEDURE FOR THE PREPARATION OF NEW CARBAMOILOXYISOXAZOLE DERIVATIVES. | |
ES487034A0 (en) | A PROCEDURE FOR THE PREPARATION OF NEW SUBSTITUTE PENENNAS. | |
NL7701205A (en) | CUTTING INSTALLATION. | |
ES499558A0 (en) | A PROCEDURE FOR THE PREPARATION OF NEW PIPERIDINOQUINAZOLINES. | |
ES480054A0 (en) | A PROCEDURE FOR THE MANUFACTURE OF SINTERED MAGNESITE-DA. | |
ES522026A0 (en) | A PROCEDURE TO OBTAIN MONITRILS. | |
ES509837A0 (en) | A PROCEDURE TO PREPARE ANTIBIOTIC-LACTAMIC DERIVATIVES. | |
IT8020546A0 (en) | COATING BLADE. | |
ES511990A0 (en) | "A PROCEDURE TO PREPARE AN ILURO". |