Engraving depicting F. Wright and M. W. W. Mackie's

Engraving depicting F. Wright and M. W. W. Mackie's machine for blowing glass lamp bulbs. (V) is a reservoir of compressed air which is fed to the blow-pipe via a valve-controlled tubes (H and K). Flame could be directed onto glass from any angle

Blow Blowing Bulb Bulbs Compressed Mackie Onto Reservoir Tubes Valve

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