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Aviation History
1945
1945 - 0060.PDF
RATTLESNAKES CAN'T HEAR their own rattles So they say. We don't know much about snakes but we know that it is possible for engineers to get so used to the drums and cymbals of their own machinery that they no longer notice them. Sometimes they let the noise and vibration continue —until they get trouble with breakages, or tired machine operators, or dissatisfied customers. Eventually—not always at the beginning—we may get called in. Then we go about things in our own way, without guesswork or hunches, because we measure and analyse the vibrations with fine and accurate equipment, much of which has been developed in our own laboratories, and can generally write and 'dispense' an accurate prescription at once. Because, you must understand, we are able to design vibration — absorbing mountings which are definitely suitable for the frequencies and amplitudes we have identified, and we have at our disposal a perfect manufacturing technique with which we can carry those designs into practical effect. The result is that we are practically always able to cure the troubles brought to us. Whatever the character of the vibration that troubles you, our wholehearted collaboration is at your service. Metalastik Ltd., Leicester The illustration shows • the Metalastik F.S. type mounting, giving effective vibration and sound insulation with additional definite location. The Metalastik rubber-to-meta\ weld gives an extraordinarily high efficiency to these designs. METAL.A5THC
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