{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A treatise on toothed gearing, containing complete instructions for designing, drawing, and constructing spur wheels, bevel wheels, lantern gear, screw gear, worms, etc., and the proper formation of tooth-profiles for the use of machinists, pattern-makes,","author_name":"J. Howard Cromwell","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B004W17Z7O.html\">A treatise on toothed gearing, containing complete instructions for designing, drawing, and constructing spur wheels, bevel wheels, lantern gear, screw gear, worms, etc., and the proper formation of tooth-profiles for the use of machinists, pattern-makes,</a>","width":400,"height":300}