FR2378578B1 - - Google Patents
Info
- Publication number
- FR2378578B1 FR2378578B1 FR7800421A FR7800421A FR2378578B1 FR 2378578 B1 FR2378578 B1 FR 2378578B1 FR 7800421 A FR7800421 A FR 7800421A FR 7800421 A FR7800421 A FR 7800421A FR 2378578 B1 FR2378578 B1 FR 2378578B1
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2703261A DE2703261B2 (de) | 1977-01-27 | 1977-01-27 | Walzenkörper aus Hartmetall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2378578A1 FR2378578A1 (fr) | 1978-08-25 |
| FR2378578B1 true FR2378578B1 (US08124317-20120228-C00060.png) | 1981-07-03 |
Family
ID=5999647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7800421A Granted FR2378578A1 (fr) | 1977-01-27 | 1978-01-09 | Piece de laminage en metal dur |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2703261B2 (US08124317-20120228-C00060.png) |
| FR (1) | FR2378578A1 (US08124317-20120228-C00060.png) |
| IT (1) | IT1111158B (US08124317-20120228-C00060.png) |
| SE (1) | SE443807B (US08124317-20120228-C00060.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1119850A (en) * | 1978-12-04 | 1982-03-16 | William M. Stoll | Roll for hot forming steel rod |
| US4698884A (en) * | 1983-03-28 | 1987-10-13 | Kennametal Inc. | Roll for hot forming steel rod |
| IT1282011B1 (it) * | 1996-02-07 | 1998-03-06 | Alfa Acciai S R L | Procedimento per la produzione di reti in acciaio elettrosaldate ad alta duttilita',particolarmente per l'impiego come armature |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE941869C (de) * | 1939-05-27 | 1956-04-19 | Eisen & Stahlind Ag | Verwendung von Hartmetallegierungen |
| DE1019470B (de) * | 1953-12-16 | 1957-11-14 | Eisen & Stahlind Ag | Verwendung einer Hartmetallegierung |
| US3512962A (en) * | 1966-01-03 | 1970-05-19 | Iit Res Inst | Cobalt-tungsten carbide alloy and process |
| US3647401A (en) * | 1969-06-04 | 1972-03-07 | Du Pont | Anisodimensional tungsten carbide platelets bonded with cobalt |
-
1977
- 1977-01-27 DE DE2703261A patent/DE2703261B2/de not_active Ceased
-
1978
- 1978-01-09 FR FR7800421A patent/FR2378578A1/fr active Granted
- 1978-01-16 SE SE7800461A patent/SE443807B/sv not_active IP Right Cessation
- 1978-01-26 IT IT19613/78A patent/IT1111158B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2703261A1 (de) | 1978-08-03 |
| SE7800461L (sv) | 1978-07-28 |
| SE443807B (sv) | 1986-03-10 |
| DE2703261B2 (de) | 1978-11-16 |
| FR2378578A1 (fr) | 1978-08-25 |
| IT7819613A0 (it) | 1978-01-26 |
| IT1111158B (it) | 1986-01-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |