Handbook of Modern Aeronautics: A Book of Reference for Manufacturers, Designers, Draughtsmen, Students, and All Interested in Aeronautical Practice and Theory

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D. Appleton, 1919 - Aeronautics - 1005 pages
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Page 910 - Gage Length for Elongation Note: — The gage length, parallel section, and fillets shall be as shown, but the ends may be of any shape to fit the holders of the testing machine in such a way that the load shall be axial.
Page 136 - A sufficient discard shall be made from each ingot to secure freedom from injurious piping and undue segregation.
Page 906 - ... when requested on the purchase order or contract. 8.2 A report of this analysis shall be furnished only when requested on the order. 9. Product Analysis 9.1 When requested on the purchase order, a product analysis shall be made by the manufacturer. The chemical composition thus determined shall conform to the requirements prescribed in Tables 1A or IB as modified by Table 2. 9.2 The product analysis limits shown for carbon are not normally applicable to the MT grades. 9.3 The number and source...
Page 910 - If any test specimen shows defective machining or develops flaws, it may be discarded; in which case the manufacturer and the purchaser or his representative shall agree upon the selection of another specimen in its stead.
Page xxiv - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Page 180 - GENERAL. — 1. The general specifications, 1G1, shall form according to their applicability, a part of these specifications.
Page 909 - The bend test shall be made cold. 12. (a) Tension and bend test specimens shall be taken from the rolled or forged material; except that in the case of irregularly shaped forgings, they may be taken from a full-size prolongation. Specimens shall not be annealed or otherwise treated, except as specified in paragraph (b).
Page 179 - Take ten slabs at random from a carload and saw each slab completely across from the middle of one long side to the middle of the other and use the sawdust as the sample; or, drill three 9-mm. holes along one diagonal of each slab, boring completely through and taking care to make fine drillings; the holes should be drilled as nearly as possible at the middle and halfway between either end and the middle of such diagonals. Go over the drillings or sawings with a powerful magnet to...
Page 136 - English cotton yarn numbers. A tolerance of plus or minus four (±4) will be allowed in the size of single yarns. (b) The length of the staple of the fabric must not be less than ]<<, inches.
Page 248 - Normalising means heating a steel (however previously treated) to a temperature exceeding its upper critical range, and allowing it to cool freely in air.

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