{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The principles of mechanism and machinery of transmission. Comprising the principles of mechanism, wheels and pulleys, strength and proportions of ... and disengaging gear. By William Fairbairn.","author_name":"Michigan Historical Reprint Series","thumbnail_url":"https://www.ebooknetworking.net/books/142/552/big1425527000.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1425527000.html\">The principles of mechanism and machinery of transmission. Comprising the principles of mechanism, wheels and pulleys, strength and proportions of ... and disengaging gear. By William Fairbairn.</a>","width":400,"height":300}