parts hinged together to facilitate its removal from escape of any of the filtering material. A precipitat- hand, occupying only a second or two, places the re- ing device, which can be opened or closed at will, is producer on any part of the record, and the latter can the support. be repeated a… … when the water being filtered is Fig. 5. Kg. 4. quite bad, while it will not be neces- the machine is represented as being DIAPHRAGM. SECTION OF REPRODUCING SECTION OF RECORDING DIAPHRAGM. driven by a small electric motor. sary to wash the filter but once a The paper cylinders are very day, unless…
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