DE185238C - - Google Patents

Info

Publication number
DE185238C
DE185238C DENDAT185238D DE185238DA DE185238C DE 185238 C DE185238 C DE 185238C DE NDAT185238 D DENDAT185238 D DE NDAT185238D DE 185238D A DE185238D A DE 185238DA DE 185238 C DE185238 C DE 185238C
Authority
DE
Germany
Prior art keywords
screw
belt
fork
arm
lever
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.)
Active
Application number
DENDAT185238D
Other languages
German (de)
English (en)
Publication of DE185238C publication Critical patent/DE185238C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
DENDAT185238D Active DE185238C (it)

Publications (1)

Publication Number Publication Date
DE185238C true DE185238C (it)

Family

ID=449093

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT185238D Active DE185238C (it)

Country Status (1)

Country Link
DE (1) DE185238C (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531841B1 (en) 1998-05-19 2003-03-11 Abb Adda S.P.A. Actuation and control device for electric switchgear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531841B1 (en) 1998-05-19 2003-03-11 Abb Adda S.P.A. Actuation and control device for electric switchgear

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