Excerpt from Welding and Cutting Metals by Aid of Gases or Electricity

An examination of the various methods existing for the production and liquefaction of combustible gases, of their easy application and economical advantages, and of the phenomenal advance during the last three years in their adaptation to an immense variety of metallurgical and engineering operations, which have hitherto been carried out under less favourable conditions, proves that compressed gases have become an indispensable factor in almost every branch of industry.

The small space available for this important subject will be limited to a description of welding and cutting metals by means of combustible gases as well as the application of electric welding.

Recent investigation, personally made by the author in various countries, has proved that welding is being used to a far greater extent than is generally known.

Welding is, however, associated with and dependent upon many different factors, all of which must be simultaneously considered to enable even the most skilful workman to produce satisfactory results.

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