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Aviation History
1943
1943 - 0592.PDF
filzdi couldn't khi..... without M ETALASTIK Nature has always known how to grow muscles out of the main bone structure. It is true that she does not use metal and rubber, but the advantages gained are exactly the same as from the Metalastik rubber-to-metal weid. Who could imagine a bird built up like a Meccano outfit, or a ballet dancer with buffer springs and the backlash from a hundred Hooke's joints ? Hitherto, nature alone has held the secret of 'natural* flexibility, but to-day mechanical engineering is broadening in its scope, by reason of this new flexible construction brought about by the scientific use of rubber, natural or synthetic, in conjunction with any of the metals commonly in use. Instead of rubber looped on as a tension member, or sandwiched in as a buffer, rubber to-day can be integral—for all practical purposes—with the metal parts with which it is designed, yet with pre-determined resilience. The scope in design is limitless, because rubber has three quite different moduli ; in compression, in tension and in shear ; and we at Metalastik can control the movements of a part so that the elastic characteristics of constraint are different, not only against bodily translation, but also against rotation in every plane. The illustrations at the side show ;— 1. The cross-type mounting for instru- ments, embodying an overload device, made in an extensive range. 2. Metalastik rubber-to-metal welded bush. Rubber gives elasticity in compression, tension, linear or torsional shear, separ- ately or in combination. Increased load- capacity, rubber does not leave metal under heavy load. In wide range of sizes. 3. The simplest type of instrument mount- ing, virtually a stud with a rubber 'middle.' 4 Another simple type of Low Frequency mounting for instruments, etc. 5. The Z.V.S. flexible coupling element ; alternate blocks bolted to driving and driven flanges respectively. This permits angular and axial djsalignment ;_ cushioned drive with emergency positive engagement. For powers from 1/15 H.P. to many thousand H.P. 6. Where high-duty designs are needed with low weight, Metalastik gives outstand- ing results. This small unit is an elastic mounting for an aero engine, all metal parts are ©f Duralumin, to which the Metalastik rubber-to-metal weld is as efficient as to steel, etc. Our technical resource: are at your disposal. Metalastik Ltd., Leicester. \ METALASTIK
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