{"product_id":"9781603862608","title":"High Steam Pressures In Locomotive Service","description":"An Unabridged, Digitally Enlarged Printing With Numerous Tables, Charts And Illustrations, To Include: Difficulties In Operating Under High Steam Pressures - Boiler Performance - Engine Performance - Machine Friction And Performance At The Draw Bar - Boiler Pressure As A Factor In Economical Operation - Boiler Capacity As A Factor In Economical Operation - Conclusions Concerning Boiler Pressure Versus Boiler Capacity As A Means Of Increasing The Efficiency Of A Locomotive - The Locomotive Experimented Upon - Methods And Data Derived From Tests - Data Concerning Weight Of Locomotive Boilers - Typical Indicator Cards - A Summary Of Conclusions","brand":"Watchmaker Publishing","offers":[{"title":"Default Title","offer_id":47063193583856,"sku":"9781603862608","price":6.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781603862608_p0.jpg?v=1763827483","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781603862608","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}