FR649668A - Improvements to parachutes for lifts and freight lifts - Google Patents
Improvements to parachutes for lifts and freight liftsInfo
- Publication number
- FR649668A FR649668A FR649668DA FR649668A FR 649668 A FR649668 A FR 649668A FR 649668D A FR649668D A FR 649668DA FR 649668 A FR649668 A FR 649668A
- Authority
- FR
- France
- Prior art keywords
- lifts
- parachutes
- freight
- freight lifts
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR649668T | 1928-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR649668A true FR649668A (en) | 1928-12-26 |
Family
ID=9003438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR649668D Expired FR649668A (en) | 1928-02-24 | 1928-02-24 | Improvements to parachutes for lifts and freight lifts |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR649668A (en) |
-
1928
- 1928-02-24 FR FR649668D patent/FR649668A/en not_active Expired
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