Aryana Libris

Author : O. Parmley Robert
Title : Illustrated sourcebook of mechanical components
Year : 2000

Link download : O_Parmley_Robert_-_Illustrated_sourcebook_of_mechanical_components.zip

The major mission of this sourcebook is to intel!sify and highlight the importance of typical mechanical components by illustrating their versatility, innovative applications, history and artistry. Hopefully, this presentation will stimulate new ideas by giving the reader a graphic kaleidoscopic view of mechanical components, as well as an appreciation for their geometric grace and adaptability into complex mechanisms. The contents of this presentation have many sources. We searched legions of past journals and publications for articles about creative uses of mechanical components and selected only the best for inclusion in this book. Many of these classic ideas were originally printed in Product Engineering, a great magazine which ceased publication in the mid-1970s. Product Engineering was a truly unique magazine. Many issues featured a two or three page illustrated article that highlighted an innovate mechanical design. I was a contributor to that series for many years and have repeatedly received requests for reprints. Unfortunately, they are extremely difficult to obtain. Except for Douglas Greenwood's books, published in the late 1950s and early 1960s and Chironis' Mechanisms & Mechanical Devices Sourcebook, most of those great presentations have faded from the technical literature. I believe they should be preserved in a hardbound reference. The innovation captured in these illustrated articles is monumental and should be a source of inspiration for decades to come. Innovation and invention generally does not spring forth easily. It takes prior thought, hard work, and tenacity to generate novel concepts; which are followed by the struggle of their development. In addition, other technical magazines, like American Machinist, Machine Design, Power and Assembly, have generously supplied valuable articles and material from their past issues. Some appropriate data from classic handbooks has been included, with permission, to round out their respective topic. Several leading manufacturing companies and technical institutes have kindly furnished layouts and designs depicting creative applications of many mechanical components. The design files of Morgan & Parmley, Ltd., (Professional Consulting Engineers) were combed and several of their layouts incorporated into various sections to flesh out the manuscript. We have, also, included some design material that is not typically available in general handtypical phases often present during a project. As previously noted, a major portion of the material displayed throughout the following pages has been selected from five decades of technical publications. Therefore, the reader will undoubtedly notice the wide variety of graphic styles and printing techniques. Since these differences do not affect the technical data, we have let these variations remain and believe they add a historical quality and flavor to the overall presentation. This sourcebook attempts to help pave the way for designers by having thousands of good, solid ideas at their fingertips from which to consult. Any mechanical engineer, designer or inventor, must have not only technical competence but access to a broad scope of things mechanical. This sourcebook attempts to provide that data in abundance. Many key mechanical components in use today have been in existence since time immemorial. We must not forget those ingenious individuals of old who solved mechanical problems with truly original solutions. In many cases, their ideas have blended into our technological fabric and are today taken for granted by the public and go unheralded; even by many professionals. We must never lose sight of the fact that knowledge comes slowly and often only through a difficult struggle. Therefore, it is mandatory that successful details and ideas be preserved in order to continue the advancement of technology. It was the discovery of ancient manu~ scripts, depicting the inventive genius of past civilizations, that helped ignite the European Renaissance. Without that discovery, it is this writer's opinion, the modem technological era would have been significantly delayed and certainly much more difficult to achieve. Good technical ideas are priceless and must be respected by properly recording them for future reference. Most of this data and information can not be found in conventional handbooks, which tend to present merely condensed basic engineering information. The material selected for this sourcebook represents the product of shirtsleeve engineering which often goes beyond academic training. Here is the distilled experience and valuable knowledge of engineers in the everyday trenches of design; the "Yankee ingenuity" that built America and lead the world into the modem age. Competitive design creates many innovative solutions to complex problems and this sourcebook's goal is to aid in the continuation of that noble process. Frank Yeaple, former editor of Product Engineering, generously supplied hundreds of tear sheets from his collection of past Product Engineering publications. It is safe to say that this sourcebook would be severely limited in its content were it not for his valuable assistance. In addition, I want to note Frank's encouragement and support for this project. His wise council is much appreciated. It is next to impossible to fully list all of the individuals, organizations, societies, institutes and publishers who have assisted in the development of this sourcebook. Their spirit of coop' eration and support for this effort has encouraged me numerous times and I salute all of them. Where appropriate, credit has been listed. We have made a special attempt to list the names of original authors of each article. However, any oversight of acknowledgment is purely unintentional. I must make special note of Harold Crawford's contribution to this effort. Hal was the sponsoring editor for the first book I had published and for the past twenty,five years has been a good friend and advisor. Just before his well earned retirement from McGraw,Hill in 1998, he helped me develop the format for this sourcebook. I trust that our effort meets with his approval. This project also provided a rare opportunity for me to work "elbow,to,elbow" with my son over an extended period of time. Wayne's contribution greatly influenced the final appear, ance and general style of this sourcebook. His patience with an aging engineer, who struggles against the operation of computers, is a mark of a true professional. However, our collabora, tion seemed to ironically bridge the gap between conventional or classic methods and the emerging electronic process. In the final analysis, we both feel this presentation has preserved a large segment of valuable information and innovative designs that would have otherwise remained obscure and perhaps lost forever. The ingenious concepts and artistry of many of these designs should launch future innovative devices and systems to propel technology ever forward; we trust, for the good of society. Hopefully, this sourcebook will have a permanent place in the history of mechanical technology. A special thanks to Lana and Ethne for transcribing my notes and not complaining when I buried them with last minute revisions. At last, this sourcebook is now complete and ready for public viewing. We have made a special effort to organize its contents into a usable format and trust that it will be of value for decades. If you enjoy this sourcebook as much as we have preparing it, then I know the project was worthwhile. ROBERT O. PARMLEY, P.E. Editor-in-Chief. Ladysmith, Wisconsin. ...