GB720405A - Improvements in or relating to closures for undercarriage and like apertures in aircraft - Google Patents
Improvements in or relating to closures for undercarriage and like apertures in aircraftInfo
- Publication number
- GB720405A GB720405A GB639152A GB639152A GB720405A GB 720405 A GB720405 A GB 720405A GB 639152 A GB639152 A GB 639152A GB 639152 A GB639152 A GB 639152A GB 720405 A GB720405 A GB 720405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aperture
- aircraft
- runways
- door
- elements
- 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
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/16—Fairings movable in conjunction with undercarriage elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
720,405. Doors for aircraft structures. BOULTON PAUL AIRCRAFT, Ltd. March 12, 1953, [March 12, 1952], No. 6391/52. Class 4. A closure for an aperture in an aircraft comprises constantly spaced members arranged to stiffen the aircraft structure on opposite sides of the aperture and forming runways for a roller type door movable in said runways to open and close the aperture, and consisting of channelshaped elements hingedly connected together and driven by notched wheels or cogs which mesh with the door elements. Channel-section runways 1, held apart by spacing strips 2, are located on opposite sides of an aperture A in the aircraft structure. The door consists of channel-shaped elements 3 of pressed sheet or extruded material formed with interlocking ends 8, 9 and mounted on hinge pins 10 which, at their extremities, carry rollers (not shown) to engage in the runways 1. A spindle 12, driven by an hydraulic or electric motor 14, carries cogs 11 which engage the projections 9 whereby, when the motor is energized, the flexible door will cover or expose the aperture A. An emergency manually operated drive 15-18 is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB639152A GB720405A (en) | 1952-03-12 | 1952-03-12 | Improvements in or relating to closures for undercarriage and like apertures in aircraft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB639152A GB720405A (en) | 1952-03-12 | 1952-03-12 | Improvements in or relating to closures for undercarriage and like apertures in aircraft |
Publications (1)
Publication Number | Publication Date |
---|---|
GB720405A true GB720405A (en) | 1954-12-22 |
Family
ID=9813653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB639152A Expired GB720405A (en) | 1952-03-12 | 1952-03-12 | Improvements in or relating to closures for undercarriage and like apertures in aircraft |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB720405A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130214096A1 (en) * | 2010-11-09 | 2013-08-22 | Airbus Operations Limited | Seal assembly |
-
1952
- 1952-03-12 GB GB639152A patent/GB720405A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130214096A1 (en) * | 2010-11-09 | 2013-08-22 | Airbus Operations Limited | Seal assembly |
US9242718B2 (en) * | 2010-11-09 | 2016-01-26 | Airbus Operations Limited | Seal assembly |
EP2637925B1 (en) * | 2010-11-09 | 2017-01-04 | Airbus Operations Limited | A seal assembly for closing an aperture in an aerodynamic surface of a structure |
US9745049B2 (en) | 2010-11-09 | 2017-08-29 | Airbus Operations Limited | Seal assembly |
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