BE538387A - - Google Patents
Info
- Publication number
- BE538387A BE538387A BE538387DA BE538387A BE 538387 A BE538387 A BE 538387A BE 538387D A BE538387D A BE 538387DA BE 538387 A BE538387 A BE 538387A
- Authority
- BE
- Belgium
- Prior art keywords
- hinge
- spiral
- doors
- wings
- wing
- Prior art date
Links
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
- E05F1/04—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights for wings which lift during movement, operated by their own weight
- E05F1/06—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing
- E05F1/061—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing with cams or helical tracks
- E05F1/066—Helical grooves, slots, threads or the like
Landscapes
- Hinges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE538387A true BE538387A (en, 2012) |
Family
ID=168427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE538387D BE538387A (en, 2012) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE538387A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3081442A (en) * | 1958-05-28 | 1963-03-12 | Ite Circuit Breaker Ltd | Three contact twist type receptacle |
-
0
- BE BE538387D patent/BE538387A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3081442A (en) * | 1958-05-28 | 1963-03-12 | Ite Circuit Breaker Ltd | Three contact twist type receptacle |
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