Davis-Bournonville Oxy-Acetylene Welding and Cutting Course of Instruction

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. You are to learn how to make welds with the oxy-acetylene torch and to study the construction and'' principles of the apparatus. These are simple but like many other simple matters they require clear understanding. ...