Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 82
holes.Tlic cross-jet principje is verj Avidelyused in modern acetylene burners asit leads to a distinct gain in efficiency ;moreover, if one of the burners be-comes slightly choked up, the otherA\ill continue to give its full value.On the other hand, if one burner ispartly stopped up, the other…
Lighting
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