Aperçu gratuit du livre The Walschaert And Other Modern Radial Valve Gears For Locomotives: A Practical Treatise On The Locomotive Valve Actuating Mechanism Invented By Egide Walschaert, With The History Of Its Development And Its Evolution Into The Mechanically Correct
The Walschaert And Other Modern Radial Valve Gears For Locomotives: A Practical Treatise On The Locomotive Valve Actuating Mechanism Invented By Egide Walschaert, With The History Of Its Development And Its Evolution Into The Mechanically Correct