Stott's patent automatic gas governor, in section, in shallow vertical glazed case Stott's patent automatic gas governor
Spring controlled high speed steam engine governor B2 size, no.389 Spring controlled high speed steam engine governor B2 size
Governor, bolted to wrought-iron bars and with wooden mounting blocks Governor, bolted to wrought-iron bars and with wooden mounting blocks
1 1/2" Allens Governor with full sized sectional drawing 1 1/2" Allens Governor with full sized sectional drawing