GB365280A - Improvements in or connected with sheet metal spars particularly adapted for use in aircraft structures - Google Patents
Improvements in or connected with sheet metal spars particularly adapted for use in aircraft structuresInfo
- Publication number
- GB365280A GB365280A GB38440/30A GB3844030A GB365280A GB 365280 A GB365280 A GB 365280A GB 38440/30 A GB38440/30 A GB 38440/30A GB 3844030 A GB3844030 A GB 3844030A GB 365280 A GB365280 A GB 365280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- booms
- edges
- rivets
- struts
- 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
- 239000002184 metal Substances 0.000 title abstract 4
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/065—Spars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C2001/0054—Fuselage structures substantially made from particular materials
- B64C2001/0081—Fuselage structures substantially made from particular materials from metallic materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
365,280. Metal spars for aircraft. STEEL WING CO., Ltd., Gloster Works & Aerodrome, Hucclecote, and EMBY, D. H., Old Vicarage, Ampney Crucis, near Cirencester, both in Gloucestershire. Dec. 20, 1930, Nos. 38440/30 and 25833/31. [Class 4.] Metal spars for aircraft have booms formed from two or more metal strips so corrugated and bent that the borders of the strips coincide and are fixed together while other parts of the strips are spaced apart, two such looms being connected together by distancing struts and diagonal bracing embraced by the outer borders of the booms. Fig. 1 shows a spar having booms each formed from two strips a, b having coterminal edges a3, a4 and central portions a<5> with intermediate portions spaced as shown. The edges a<3>, a<4> and central portions a<5> are secured together by hollow rivets those securing the former passing through spacing tubes. Vertical struts c bent as shown and provided with liners c<6> at their ends are secured to the edges a<3>, a<4> by bolts d passing through distance tubes d<1> or by separate rivets. Diagonal bracing e of channel section expanded at the ends and fitted with strengthening pieces e<2> are secured to the booms also by the bolts d or rivets which secure the struts. Lightening holes c<5> are formed in the struts c. Various modified booms are described. The strip a may be in two parts with flat overlapping central portions, upturned at the edges to interengage, or the strip b may be of channel section with rounded corners, or strips with polygonal instead of curved corrugations may be used. Fig. 8 shows a boom made from four pieces overlapping at the centre and Fig. 9 a boom made with three strips two of which fit closely together. A boom formed from two strips so bent as to form rectangular hollow spaces at the corners also is described with an additional strip secured over the central flat portion. Figs. 10 and 12 show other modifications. The spacing of the rivets bracing the edges a<3>, a<4> together is varied to suit the load on the spar and the thickness or number of the strips forming a boom may be varied for the same purpose.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB38440/30A GB365280A (en) | 1930-12-20 | 1930-12-20 | Improvements in or connected with sheet metal spars particularly adapted for use in aircraft structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB38440/30A GB365280A (en) | 1930-12-20 | 1930-12-20 | Improvements in or connected with sheet metal spars particularly adapted for use in aircraft structures |
Publications (1)
Publication Number | Publication Date |
---|---|
GB365280A true GB365280A (en) | 1932-01-21 |
Family
ID=10403451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38440/30A Expired GB365280A (en) | 1930-12-20 | 1930-12-20 | Improvements in or connected with sheet metal spars particularly adapted for use in aircraft structures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB365280A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2448362A (en) * | 1945-09-26 | 1948-08-31 | Beech Aircraft Corp | Aircraft beam chord construction |
DE3427901A1 (en) * | 1984-07-28 | 1986-02-06 | Dyckerhoff & Widmann AG, 8000 München | Method for manufacturing a multipart ring wedge of a wedge anchoring for a prestressing element in a concrete structural part |
-
1930
- 1930-12-20 GB GB38440/30A patent/GB365280A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2448362A (en) * | 1945-09-26 | 1948-08-31 | Beech Aircraft Corp | Aircraft beam chord construction |
DE3427901A1 (en) * | 1984-07-28 | 1986-02-06 | Dyckerhoff & Widmann AG, 8000 München | Method for manufacturing a multipart ring wedge of a wedge anchoring for a prestressing element in a concrete structural part |
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