دانلود کتاب History of Technology Volume 4: Volume 4, 1979

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Cover\nHalf-title\nTitle\nCopyright\nContents\nPreface\nSome Aspects of the History of Journal Bearings and Their Lubrication\n Introduction\n The design and performance of railway axle bearings\n Lubricants\n Bearing Metals\n Summary\n Notes\n Bibliography\nThe Waltham Pound Lock\n Appendix\n Notes\nParkesine and Celluloid: The Failure and Success of the First Modern Plastic\n Notes\nIron Arched Bridge Designs in Pre-Revolutionary France\n 1. Introduction\n 2. French Claims to Very Early Iron Bridge Designs\n 3. Notes On Goiffon and Vincent De Montpetit\n 4. Calippe\'s Proposal, 1777 or 1778\n 5. The Proposals Of Guyton de Morveau, 1779\n 6. Vincent de Montpetit\'s Proposals, 1778-88\n 7. Léonard Racle\'s Proposals: 1782-90\n 8. Proposals by Nicolas Aubry: 1780s\n 9. Bélanger\n 10. Conclusions\n Appendix 1: Places and People\n Appendix 2: Weights, Measures and Money\n Notes\n Additional Note\nThe Early History of Mechanical Harvesting\n Introduction to the Literature\n The traditional steps in preparing wheat for human consumption\n Traditional tools for hand-reaping grain crops\n An isolated attempt to harvest by machine in the early Christian era\n The first modern attempts to devise mechanical reapers\n Patrick Bell\'s Scottish Reaper\n Early reaping machine developments in America\n Hussey\'s Reaper\n McCormick\'s Reaper\n The South Australian Stripper\n Bell, Hussey, McCormick and Ridley — True inventors or mere improvers?\n Conclusion: The influence of the Bell, Hussey, McCormick, and Ridley Machines upon the progress of general mechanization in harvesting\n Notes\nThe Sector and Chain: An Historical Enquiry\n Postscript\n Notes\nThe Contributors