From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Material advancements for chassis components, drawn from a chemical engineering publication.
| Identifier | ExFiles\Box 142\4\ scan0132 | |
| Date | 20th December 1927 | |
| OY5.R.12.20.27 X3801 December 20th, 1927. TO Mr. Beaver Mr. Nadin(Eng) Mr. Bagnall Mr. Southern Mr. Allen FROM Mr. Olley cc - Mr. Ainsworth Mr. Poole Mr. Burton Mr. Moon Mr. Bailey (Eng.) Mr. Hives (Eng.) RE CHASSIS From a recent booklet published by "Industrial and Engineering Chemistry" the following items of interest to us are drawn:- BEARINGS. "The whole problem of bearing metals is tied up with that of lubrication and is very complex, bringing in such questions as that of the adsorption of the oil by the metal---. "When pressures are very high, as in worm gears, wear and pitting of the worm and gear may be excessive. Small additions of nickel to the gear bronze are said to be advantageous." ALUMINUM ALLOYS "Silicon alloys are now coming into quite extensive use, thanks to the labors of Aladar Pacz whose "modification" process for these alloys is a good example of the profound effect which the presence of a trace of one element (sodium) may have on the behaviour of another (silicon) in an alloy. "Magnesium is useful in some classes of heat-treated alloys, and the manganese alloys are found to be particularly resistant to corrosion." "The recent development, by Archer and Jeffries, of the proper technic for heat treating aluminum copper alloy castings promises to be of great interest to the automotive industry - "Crankcases for the largest fire-engines are now made of such heat treated castings." RUBBER " - The tire tread is a firm, tough product which resists abrasive wear, better than any other known substance. Steel gives way in one tenth the time - " GLASS Compound composite glass of laminated construction. "Serious efforts are being made by several large companies to perfect this product technically and to reduce its manufacture to the routine of large-scale production. Its tendency to become yellowed in sunlight and to separate at the edges are not considered inherent characteristics." (Continued) | ||