BE452659A - - Google Patents

Info

Publication number
BE452659A
BE452659A BE452659DA BE452659A BE 452659 A BE452659 A BE 452659A BE 452659D A BE452659D A BE 452659DA BE 452659 A BE452659 A BE 452659A
Authority
BE
Belgium
Prior art keywords
collar
irons
wings
prop
outer column
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE452659A publication Critical patent/BE452659A/fr

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
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
  • Adornments (AREA)
BE452659D BE452659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE452659A true BE452659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=107228

Family Applications (1)

Application Number Title Priority Date Filing Date
BE452659D BE452659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE452659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946971C (de) * 1946-04-25 1956-08-09 Hermann Schwarz Kommanditgesel Zweiteiliger metallener Grubenstempel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946971C (de) * 1946-04-25 1956-08-09 Hermann Schwarz Kommanditgesel Zweiteiliger metallener Grubenstempel

Similar Documents

Publication Publication Date Title
EP0451068A1 (fr) Pièce d'assemblage pour éléments longiformes
EP0519851A1 (fr) Cale destinée à réaliser le montage sur un poteau d'une glissière de sécurité équipant une voie de circulation routière
BE452659A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE666936A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR2649303A1 (fr) Ensemble d'elements pour la construction de rayonnages demontables
FR2721048A1 (fr) Elément de recouvrement pour un puits, notamment un puits à câbles.
FR2742314A1 (fr) Mecanisme d'inclinaison destine au mat d'un parasol
FR2513865A1 (fr) Ensemble de construction de rayonnages
CH332410A (fr) Cabine blindée
BE485103A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR2464677A1 (fr) Rayonnage demontable
FR2629494A1 (fr) Dispositif formant barriere interdisant ou autorisant le passage d'un vehicule
BE441916A (fr) Etai en fer pour galeries de mine
BE394166A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE493123A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH250840A (fr) Construction démontable.
BE409107A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH336974A (fr) Châssis pour panneau de coffrage
FR2531119A1 (fr) Couvercle de puits a hauteur reglable
BE376329A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE377888A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE348523A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE417262A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE369362A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE399315A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)