BE643093A - - Google Patents
Info
- Publication number
- BE643093A BE643093A BE643093DA BE643093A BE 643093 A BE643093 A BE 643093A BE 643093D A BE643093D A BE 643093DA BE 643093 A BE643093 A BE 643093A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
- E21D15/325—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring by a clamping ring
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG37036A DE1169877B (en) | 1963-02-11 | 1963-02-11 | Multi-part pit stamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE643093A true BE643093A (en) | 1964-05-15 |
Family
ID=7125535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE643093D BE643093A (en) | 1963-02-11 | 1964-01-29 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE643093A (en) |
| DE (1) | DE1169877B (en) |
| NL (1) | NL6401022A (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE351379C (en) * | 1922-04-06 | Peter Luxenburger | Pit punch made of two telescopic tubes with a clamp for coarse adjustment and a screw for fine adjustment | |
| DE1008684B (en) * | 1956-01-09 | 1957-05-23 | Gutehoffnungshuette Sterkrade | Multi-part pit stamp |
| DE1020292B (en) * | 1956-06-18 | 1957-12-05 | Gutehoffnungshuette Sterkrade | Multi-part pit stamp |
| DE1011380B (en) * | 1956-08-09 | 1957-07-04 | Gutehoffnungshuette Sterkrade | Multi-part pit stamp |
| DE1012575B (en) * | 1956-10-10 | 1957-07-25 | Gutehoffnungshuette Sterkrade | Resilient pit stamp |
-
1963
- 1963-02-11 DE DEG37036A patent/DE1169877B/en active Pending
-
1964
- 1964-01-29 BE BE643093D patent/BE643093A/xx unknown
- 1964-02-07 NL NL6401022A patent/NL6401022A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6401022A (en) | 1964-08-12 |
| DE1169877B (en) | 1964-05-14 |