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Month in the Patent Office

Month in the Patent Office Means for securing fabric to a wing or the like comprises a rib or similar member having an upright limb a, Fig. 2, of Usection and horizontal flanges b with downturned ends d, the limb a being traversed at intervals by eyelets such as c, rivets or the like, around which the fabric securing cord is passed as shown in Fig. 1 so that the fabric is pulled down partially into the concavity in the virtue of their' nature or construction numerous small perforations or interstices spaced substantially uniformly over the area so as virtually to render the area uniformly porous to air. Perforations or interstices of the order of 420 per square inch are stated to be suitable to give the desired porosity. As shown, an aeroengine 3 drives a centrifugal blower 5 to suck air through the wing covering, ducts 7, 6 having guide vanes 8, and exhaust it above the fuselage. Passages are formed in the wing beneath the covering and are provided with valves 13 operable together or severally. According to the first Provisional Specification, porous fabric may be stretched over closely perforated sheetmetal. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Month in the Patent Office

Aircraft Engineering and Aerospace Technology , Volume 10 (8): 2 – Aug 1, 1938

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb030363
Publisher site
See Article on Publisher Site

Abstract

Means for securing fabric to a wing or the like comprises a rib or similar member having an upright limb a, Fig. 2, of Usection and horizontal flanges b with downturned ends d, the limb a being traversed at intervals by eyelets such as c, rivets or the like, around which the fabric securing cord is passed as shown in Fig. 1 so that the fabric is pulled down partially into the concavity in the virtue of their' nature or construction numerous small perforations or interstices spaced substantially uniformly over the area so as virtually to render the area uniformly porous to air. Perforations or interstices of the order of 420 per square inch are stated to be suitable to give the desired porosity. As shown, an aeroengine 3 drives a centrifugal blower 5 to suck air through the wing covering, ducts 7, 6 having guide vanes 8, and exhaust it above the fuselage. Passages are formed in the wing beneath the covering and are provided with valves 13 operable together or severally. According to the first Provisional Specification, porous fabric may be stretched over closely perforated sheetmetal.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Aug 1, 1938

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