Overview

The idea involved in the preparation of this work was to set forth in a clear and succinct style the principles of the pneumatic tubes, which the Batcheller Company have installed. The Batcheller system has been used in a number of the large cities in the cash carrier system of the commercial houses, but the most interesting application has probably been the postal tube service in the city of Philadelphia. The first few chapters are devoted to historical matters, and the system in Philadelphia receives the greatest share of attention. It cannot be considered that the Batcheller system was in any way a pioneer, for the telegraph companies have for years operated pneumatic tube systems connecting their central offices with important branch offices. The detail and method of accomplishing results in Philadelphia are very interesting, and the work is very thoroughly illustrated. The final chapter treats of principles and general information, and is the only effort to treat the theory and laws involved. As the title of the work implies it is almost distinctly a treatise on the Batcheller system and cannot be considered a general reference book of the principles and details of pneumatic transmission. --Electrical Engineering, Vol. 11

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9781547188161

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