Telegraphy
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In our eReader you can find the full English version of the book. Read Telegraphy Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Telegraphy
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To quickly assess the difficulty of the text, read a short excerpt:
(1) The wire is to be manufactured from charcoal puddled bars, 1 to be uniformly annealed, soft, pliable, free from scale, inequalities, flaws, splits, and other defects, and must be perfectly cylindrical, and of one of the sizes shown in the annexed Table, and subject to the hereinafter specified tests.
(2) The wire is to be drawn in continuous pieces of the weights and diameters given in the Table. Every piece may be gauged for diameter in one or more places.
(3) The wire is to be well galvan...ised with zinc spelter, and this will be tested by an officer (hereinafter called the Inspecting Officer) appointed by the Postmaster-General for the purpose of inspecting and testing the wire taking samples from any piece or pieces and plunging them into a saturated solution of sulphate of copper at 60 Fahrenheit, and allowing them to remain in the solution for one minute, when they are to be withdrawn and wiped clean. The galvanising shall admit of this process being four times performed with each sample without there being any sign of a reddish deposit of metallic copper on the wire, which would be the case if the coating of zinc were too thin.
What to read after Telegraphy?
You can find similar books in the "Read Also" column, or choose other free books by William Henry Preece to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
(1) The wire is to be manufactured from charcoal puddled bars, 1 to be uniformly annealed, soft, pliable, free from scale, inequalities, flaws, splits, and other defects, and must be perfectly cylindrical, and of one of the sizes shown in the annexed Table, and subject to the hereinafter specified tests.
(2) The wire is to be drawn in continuous pieces of the weights and diameters given in the Table. Every piece may be gauged for diameter in one or more places.
(3) The wire is to be well galvan...ised with zinc spelter, and this will be tested by an officer (hereinafter called the Inspecting Officer) appointed by the Postmaster-General for the purpose of inspecting and testing the wire taking samples from any piece or pieces and plunging them into a saturated solution of sulphate of copper at 60 Fahrenheit, and allowing them to remain in the solution for one minute, when they are to be withdrawn and wiped clean. The galvanising shall admit of this process being four times performed with each sample without there being any sign of a reddish deposit of metallic copper on the wire, which would be the case if the coating of zinc were too thin.
What to read after Telegraphy?
You can find similar books in the "Read Also" column, or choose other free books by William Henry Preece to read onlineMoreLess
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