The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co
by Birney C. Batcheller
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Language: English
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About this eBook
- Author
- Batcheller, Birney C. (Birney Clark), 1865-1950
- Title
- The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co. Also, Facts and General Information Relating to Pneumatic Despatch Tubes
- Credits
- deaurider, Brian Wilcox and the Online Distributed Proofreading Team at www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
- Language
- English
- LoC Class
- TJ: Technology: Mechanical engineering and machinery
- Subject
- Pneumatic-tube transportation
- Category
- Text
- Project Gutenberg
- eBook-No. 63952
- Release Date
- December 3, 2020
- Copyright
- Public domain in the USA.
Contents
- 1.The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co. — B. C. BATCHELLER, B.Sc.
- 2.CONTENTS.
- 3.PREFACE.
- 4.THE Batcheller Pneumatic Tube System . ———————— CHAPTER I. A BRIEF HISTORICAL SKETCH. — Early Records. — Practical Beginning of the Art. The London Pneumatic Telegraph. — The Siemens Circuit System. — Recent Improvements in the London System. — An Underground Pneumatic Railway for Transportation of Mail. — The Berlin Pneumatic Telegraph. — The Paris Pneumatic Telegraph. — The Pneumatic Telegraph of other Cities. — Pneumatic Tubes in America.
- 5.CHAPTER II. THE PNEUMATIC TRANSIT COMPANY AND THE FIRST PNEUMATIC TUBES FOR THE TRANSPORTATION OF UNITED STATES MAIL. — Organization. — Aim and Object of the Company. — The Clay-Lieb Patents. — Franchises and First Government Contract. — Search for Tubes. — Method of Manufacturing Tubes. — Laying and Opening the Tubes for Traffic. — Description of the Tubes, Method of Laying, etc. — Air-Compressor—Method of Circulating the Air. — Terminal Apparatus. — The Sender. — Sub-Post-Office Receiver. — Main Post-Office Receiver. — The Carrier. — Operation of the Tubes. — Benefits of the System.
- 6.CHAPTER III. THE SYSTEM AND APPARATUS OF THE BATCHELLER PNEUMATIC TUBE COMPANY. — General Arrangement and Adaptability of the System. — Size of Tubes. — System of Very Large Tubes. — General Arrangement of Apparatus in the Stations. Two-Station, Two-Compressor Line. — Two-Station, One-Compressor Line. — Three- to Eight-Station Line. — The Sending Apparatus. — Sending Time-Lock. — Intermediate Station Time-Lock. — The Electro-Pneumatic Circuit-Closer. — The Open Receiver. — The Closed Receiver. — The Intermediate Station Receiving and Transfer Apparatus. — Carriers. — Air Supply. — Fans. — Blowers. — Air-Compressors. — The Tube, Line Construction, etc. — CHAPTER IV. FACTS AND GENERAL INFORMATION RELATING TO PNEUMATIC TUBES. — Definitions. — Intermittent and Constant Air-Current. — Laws Governing the Flow of Air in Long Tubes. — Law of Pressure. — Uses of Pressure Curves. — Law of Velocity. — Characteristics of the Velocity Curve. — Use of Velocity Curves. — Quantity of Air Used. — Temperature of the Air. — Horse-Power. — Efficiency. — Pressure and Exhaust Systems. — Laws Expressed in Mathematical Formulæ. — Moisture in the Tubes. — Location of Obstructions in Tubes. — Transcriber’s Notes:
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