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Design of Electric Overhead Cranes: Crabs, Gearing and Brake Mechanism (Classic Reprint) by R B Brown (Paperback / softback, 2015)

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Excerpt from Design of Electric Overhead Cranes: Crabs, Gearing and Brake Mechanism The introduction and development of the electric motor, which has revolutionized so many of the methods of manufacture and transportation, has, perhaps, influenced the design of other single auxiliary apparatus in the productive industries more than that of cranes and hoists. The present treatise on the subject, therefore, has been written with the intention of placing on record the present practice in the design of overhead cranes, electrically operated, and of presenting such data as will aid the designer of such apparatus to properly calculate and proportion the various details, and supervise their construction. Overhead Travelers The overhead traveler in its various forms is probably in greater demand than any other type of electric crane on the market, a fact which has induced many firms to specialize in this particular branch of crane building. As a result of the continued and growing demand for these cranes, many attempts have been made, with more or less success, to standardize, as far as possible, the various details of construction. Electric travelers represent a type of crane which under ordinary conditions is in almost continuous service, and, as with other constantly working machines, it is essential that rapidity of operation, together with ecomy in current consumption, be pre-eminent factors to the purchaser and manufacturer alike. The requirements of the former should be based on the results of general experience gained during the past few years, while these results depend entirely on the skill of the designer, and the workmanship. The three types of ordinary travelers in use are the one -motor, three-motor, and four-motor cranes. The three-motor, and for medium and heavy cranes, the four-motor types, have been found to be by far the most efficient, and are, practically speaking, the only types w used for modern workshops, warehouses, and similar places. Until quite recently the single-motor type was considered preferable, on account of its cheapness, for engine rooms and similar places where a crane is only required occasionally. The present price of motors and their connections, and the fact that single-motor cranes require more gearing than the three-motor type, is in favor of the universal adoption of the latter, more especially since several makers manufacture the crabs of this type in quantities and keep them in stock, and can therefore give a quicker delivery. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art techlogy to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Product Identifiers

Publisher
Forgotten Books
ISBN-10
1330607376
ISBN-13
9781330607374
eBay Product ID (ePID)
216393416

Product Key Features

Author
R B Brown
Format
Paperback / Softback, Trade Paperback (US) ,Unsewn / Adhesive Bound
Language
English
Topic
History: World & General

Additional Product Features

Content Note
Black & White Illustrations
Date of Publication
27/09/2015
Country of Publication
United States

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Design of Electric Overhead Cranes: Crabs, Gearing and Brake Mechanism (Classic Reprint) by R B Brown (Paperback / softback, 2015)

About this product

Product Information

Product Identifiers

Product Key Features

Additional Product Features

Best Selling in Books

Australian Bushcraft by Richard Graves (Paperback, 2019)

Gods of Eden by William Bramley (Paperback, 1993)

The Acid Watcher Diet: A 28-Day Reflux Prevention and Healing Program by Jonathan Aviv (Paperback, 2017)

Learn to Read Hebrew in 6 Weeks by Miiko Shaffier (Paperback, 2016)

Conversations with Phantoms: Exclusive Interviews About the 1978 TV Movie, Kiss Meets the Phantom of the Park by Ron Albanese (Paperback, 2020)

Save on Books

Frank Herbert'S Dune Saga 3-Book Boxed Set: Dune, Dune Messiah, and Children of

The Satanic Bible by Anton Szandor Lavey (English) Mass Market Paperback Book Fr

A Gentleman in Moscow: The worldwide bestseller by Amor Towles (Paperback, 2017)

FCk Off! This Is MY Coloring Book: the Very FCking Best of John T | Swear Word

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