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Aviation History
1929
1929 - 0436.PDF
fel FEBRUARY 28, 1929 HEAT RESISTINGVALVE As used * tfce Bristol Jupiter Air-tooled Aero Eagine as ilkstratedstore. For all types of internal 'Combustion Engines 7 salient features r 1. It forges and machines quite well. 2. TTie heat treatment is Yery simple. 3. It retains a high tensile value at high temperatures. 4. Withstands rigorous ther- mal changes without any detrimental effects. 5. It will not harden under any conditions, and is therefore never brittle. 6. It is very tough at all tem- peratures and under all conditions. 7. It resists erosion by ex- haust gases to a remarkable decree. KAYSER ELLISON & Co., Ltd., Carlisle Steel Works, SHEFFIELD Established over 100 years. Strength without Weight. That is the most important feature of our MAGNESIUM ALLOYS —they have the strength demanded for numerous automobile and aircraft purposes, yet they are 40% lighter than aluminium alloys. We can supply these MAGNESIUM ALLOYS in the form of Forgingsand Castings with the following tensile figures:— Forgings: 20-22 tons per square inch. Castings: 10-12 tons per square inch. PLEASE WRITE US FOR FURTHER PARTICULARS. Point Pleasant Wandsworth, LONDON, S.W.18. Telegrams: • Oftnesiuma, Put, London.' Telephone:Putney 4807. THE REID PILOT TESTING APPARATUS AS ADOPTED IN THE R.A.F. IS NOW AVAILABLE TO DOMINION AND FOREIGN GOVERNMENTS. The scientific economiser which has revolutionised selective and grading tests. Sole Patentees and Manufacturers REID & SIGRIST LTD. Canbury Park Road, Kingston -on-Thames. Kingston 6272. Kindly mention " Flight" when corresponding with advertisers. xxvi
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