site direction be- cause of the slotted openings. Another turn was necessary to pass through the 8-inch, and finally through the 2-inch to the atmosphere. We did not succeed in getting a very good idea of the action of this manifold muffler, as the Maxim engine, which had been loaned us, was… … We have not done anything more with the manifold mufflers, but intend to try out one or two other ideas, which, however, have so far reached only the design stage. The last work was done on an entirely different type from that above described. The underlying idea in this type is to provide an ample…
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