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Editors Altan (Ohio State University), Ngaile (North Carolina University), and Shen (Ladish Company, Inc.) offer this extensive overview of the latest developments in the design of forging operations and dies. Basic technological principles are briefly reviewed in the first two chapters.
Ideal for beginners or those looking to brush up their skills, this quick-reference overview explains the basics of all aspects of blacksmithing. With more than 450 photos and a focus on only the most essential tools and equipment, it keeps the information simple for the beginner. Summaries cover the tools of forging, their uses, and the essential equipment in the work space; the differences among free-form forging, drop forging, industrial, hot work, and cold work; the steps of the process, such as bending, joining, riveting, welding, chiseling off, and splitting; and the chemistry of iron and steel. The book also shows a gallery of 44 types of forged items, from hooks to tool handles, with comments on their forged features.
The handbook provides design engineers with up-to-date information about the many aspects of forging including descriptions of important developments made more recently by industry and/or government. The handbook describes suitable measures for in-process quality control and quality assurance, summarizes relationships between forging practices and important mechanical properties and compares various forging devices to aid in equipment selection. Attention is also given to describing practices for relatively new materials and emerging forging practices. (Modified author abstract).
Comprises 25 papers from the November 1996 symposium in New Orleans. The papers explore four subject areas: pressure vessel and nuclear forgings, general industrial forgings, test methods, and turbine and generator forgings. Specific paper topics include: new materials and forgings used for pressure
Bart D. Ehrman, the New York Times bestselling author of Jesus, Interrupted and God’s Problem reveals which books in the Bible’s New Testament were not passed down by Jesus’s disciples, but were instead forged by other hands—and why this centuries-hidden scandal is far more significant than many scholars are willing to admit. A controversial work of historical reporting in the tradition of Elaine Pagels, Marcus Borg, and John Dominic Crossan, Ehrman’s Forged delivers a stunning explication of one of the most substantial—yet least discussed—problems confronting the world of biblical scholarship.
This book is the first to trace the fortunes of the earliest large free black community in the U.S. Nash shows how black Philadelphians struggled to shape a family life, gain occupational competence, organize churches, establish social networks, advance cultural institutions, educate their children, and train leaders who would help abolish slavery.
PREFACE. THE Author of this very practical treatise on Scotch Loch - Fishing desires clearly that it may be of use to all who had it. He does not pretend to have written anything new, but to have attempted to put what he has to say in as readable a form as possible. Everything in the way of the history and habits of fish has been studiously avoided, and technicalities have been used as sparingly as possible. The writing of this book has afforded him pleasure in his leisure moments, and that pleasure would be much increased if he knew that the perusal of it would create any bond of sympathy between himself and the angling community in general. This section is interleaved with blank shects for the readers notes. The Author need hardly say that any suggestions addressed to the case of the publishers, will meet with consideration in a future edition. We do not pretend to write or enlarge upon a new subject. Much has been said and written-and well said and written too on the art of fishing but loch-fishing has been rather looked upon as a second-rate performance, and to dispel this idea is one of the objects for which this present treatise has been written. Far be it from us to say anything against fishing, lawfully practised in any form but many pent up in our large towns will bear us out when me say that, on the whole, a days loch-fishing is the most convenient. One great matter is, that the loch-fisher is depend- ent on nothing but enough wind to curl the water, -and on a large loch it is very seldom that a dead calm prevails all day, -and can make his arrangements for a day, weeks beforehand whereas the stream- fisher is dependent for a good take on the state of the water and however pleasant and easy it may be for one living near the banks of a good trout stream or river, it is quite another matter to arrange for a days river-fishing, if one is looking forward to a holiday at a date some weeks ahead. Providence may favour the expectant angler with a good day, and the water in order but experience has taught most of us that the good days are in the minority, and that, as is the case with our rapid running streams, -such as many of our northern streams are, -the water is either too large or too small, unless, as previously remarked, you live near at hand, and can catch it at its best. A common belief in regard to loch-fishing is, that the tyro and the experienced angler have nearly the same chance in fishing, -the one from the stern and the other from the bow of the same boat. Of all the absurd beliefs as to loch-fishing, this is one of the most absurd. Try it. Give the tyro either end of the boat he likes give him a cast of ally flies he may fancy, or even a cast similar to those which a crack may be using and if he catches one for every three the other has, he may consider himself very lucky. Of course there are lochs where the fish are not abundant, and a beginner may come across as many as an older fisher but we speak of lochs where there are fish to be caught, and where each has a fair chance. Again, it is said that the boatman has as much to do with catching trout in a loch as the angler. Well, we dont deny that. In an untried loch it is necessary to have the guidance of a good boatman but the same argument holds good as to stream-fishing...
For black women in antebellum Charleston, freedom was not a static legal category but a fragile and contingent experience. In this deeply researched social history, Amrita Chakrabarti Myers analyzes the ways in which black women in Charleston acquired, de
As entrenched bureaucracies, military organizations might reasonably be expected to be especially resistant to reform and favor only limited, incremental adjustments. Yet, since 1945, the U.S. Army has rewritten its capstone doctrine manual, Operations, fourteen times. While some modifications have been incremental, collectively they reflect a significant evolution in how the Army approaches warfare—making the U.S. Army a crucial and unique case of a modern land power that is capable of change. So what accounts for this anomaly? What institutional processes have professional officers developed over time to escape bureaucracies' iron cage? Forging the Sword conducts a comparative historical process-tracing of doctrinal reform in the U.S. Army. The findings suggest that there are unaccounted-for institutional facilitators of change within military organizations. Thus, it argues that change in military organizations requires "incubators," designated subunits established outside the normal bureaucratic hierarchy, and "advocacy networks" championing new concepts. Incubators, ranging from special study groups to non-Title 10 war games and field exercises, provide a safe space for experimentation and the construction of new operational concepts. Advocacy networks then connect different constituents and inject them with concepts developed in incubators. This injection makes changes elites would have otherwise rejected a contagious narrative.
From Mexico to Vietnam, from Nicaragua to Lebanon, and more recently to Kosovo, East Timor and now Iraq, the United States has intervened in the affairs of other nations. Yet American leaders continue to promote the myth that America is benevolent and peace-loving, and involves itself in conflicts only to defend the rights of others; excesses and cruelties, though sometimes admitted, usually are regarded as momentary aberrations.This classic book is the first truly comprehensive history of American imperialism. Now fully updated, and featuring a new introduction by Howard Zinn, it is a must-read for all students and scholars of American history. Renowned author Sidney Lens shows how the United States, from the time it gained its own independence, has used every available means - political, economic, and military - to dominate other nations.Lens presents a powerful argument, meticulously pieced together from a huge array of sources, to prove that imperialism is an inevitable consequence of the U.S. economic system. Surveying the pressures, external and internal, on the United States today, he concludes that like any other empire, the reign of the U.S. will end -- and he examines how this time of reckoning may come about.