FR892043A - étançon métallique - Google Patents
étançon métalliqueInfo
- Publication number
- FR892043A FR892043A FR892043DA FR892043A FR 892043 A FR892043 A FR 892043A FR 892043D A FR892043D A FR 892043DA FR 892043 A FR892043 A FR 892043A
- Authority
- FR
- France
- Prior art keywords
- metal prop
- prop
- metal
- 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
- 239000002184 metal Substances 0.000 title 1
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
- E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
- E21D15/24—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with axial screw-and-nut, rack-and-worm, or like mechanism
- E21D15/26—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with axial screw-and-nut, rack-and-worm, or like mechanism with screw, worm, or the like, not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
- E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut
-
- 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
- E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
- E21D15/24—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with axial screw-and-nut, rack-and-worm, or like mechanism
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G2025/042—Shores or struts; Chocks telescopic with devices to avoid accidental disengagement of the telescopic elements, e.g. during transport
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE892043X | 1942-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR892043A true FR892043A (fr) | 1944-03-27 |
Family
ID=3884481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR892043D Expired FR892043A (fr) | 1942-11-27 | 1943-03-09 | étançon métallique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR892043A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771264A (en) * | 1952-04-02 | 1956-11-20 | Jack Nixon Browne | Pit prop |
-
1943
- 1943-03-09 FR FR892043D patent/FR892043A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771264A (en) * | 1952-04-02 | 1956-11-20 | Jack Nixon Browne | Pit prop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI20127A (fi) | Flaska | |
| FR883352A (fr) | Trusquin | |
| FR53518E (fr) | Micro-pendule-amplificateur | |
| FI20228A (fi) | Spinnmunstycke | |
| FR883183A (fr) | Propulseur-stabilisateur | |
| FR890596A (fr) | Serrure-verrou | |
| FR891095A (fr) | Cage-roulotte | |
| FR881742A (fr) | Fongicide-insecticide | |
| FR884168A (fr) | Matière-textile | |
| FR879353A (fr) | Frigorimètre | |
| FR892289A (fr) | Boucle-attache | |
| FR883009A (fr) | évaporateur-humecteur | |
| FI22566A (fi) | Varmgasmotor | |
| FI23417A (fi) | Varmvattenberedare | |
| FI20136A (fi) | Upprivbart omhölje | |
| FI20583A (fi) | Byggnadsplatta | |
| FI20544A (fi) | Hetgasmotor | |
| FI22676A (fi) | Tidur | |
| FI21334A (fi) | Regeneratorfyllnadsmassa | |
| FI20779A (fi) | Likriktarkoppling | |
| FI21019A (fi) | Tätningsskiva | |
| FI21347A (fi) | Rakapparat | |
| FI24022A (fi) | Torvgrävnings- och upplyftningsförfarande | |
| FI20687A (fi) | Utväxlingsanordning | |
| BE454393A (nl) | Bakhoven |