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Month in the Patent Office

Month in the Patent Office A hollow airscrew blade is formed from preformed complementary moulded plastic sections, the joint lines of which extend along the leading and trailing edges, the sections being homogeneously united under pressure. The plastic material comprises resinous or similar material of the thermoplastic or thermosetting type such as impregnated fibres of cotton, linen, or wood or laminated sheets of wood veneer and resin. The preformed sections are moulded between pairs of primary and secondary dies produced from a master pattern. Preformed struts 25 may be incorporated in the blade or a permanent core of expanded rubber. The shank of the blade may be upended by means of an axially moving end mould. 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 12 (1): 2 – Jan 1, 1940

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb030604
Publisher site
See Article on Publisher Site

Abstract

A hollow airscrew blade is formed from preformed complementary moulded plastic sections, the joint lines of which extend along the leading and trailing edges, the sections being homogeneously united under pressure. The plastic material comprises resinous or similar material of the thermoplastic or thermosetting type such as impregnated fibres of cotton, linen, or wood or laminated sheets of wood veneer and resin. The preformed sections are moulded between pairs of primary and secondary dies produced from a master pattern. Preformed struts 25 may be incorporated in the blade or a permanent core of expanded rubber. The shank of the blade may be upended by means of an axially moving end mould.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Jan 1, 1940

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