. Architect and engineer. esign • manufacture,„k/ installation L u\v{v. coni/yeteiil orcjattizaiioii one CO The Johnson System has kept abreast of the revo-lutionary changes that have come in the heating andventilating industries in the last forty-five years. Contin-ual improvements have been made in the design ofexisting apparatus and new devices have been devel-oped. Thats progress! New and better materials have been used in the manu-facture of Johnson equipment, after careful investigationand experiment have proved them worthy. Progressagain! Installation methods have been improved and new
. Architect and engineer. esign • manufacture,„k/ installation L u\v{v. coni/yeteiil orcjattizaiioii one CO The Johnson System has kept abreast of the revo-lutionary changes that have come in the heating andventilating industries in the last forty-five years. Contin-ual improvements have been made in the design ofexisting apparatus and new devices have been devel-oped. Thats progress! New and better materials have been used in the manu-facture of Johnson equipment, after careful investigationand experiment have proved them worthy. Progressagain! Installation methods have been improved and new ap-plications discovered. An experienced field force ofengineers and mechanics has been trained. Progress ofanother sort which recognizes the fact that even the bestapparatus must be applied and installed correctly! ./-liitoniaiic iemfjeratiire regiildtSnu xitice /SS5 Johnson ServiceCompany ? Main Office and Factory. MILWAUKEE, OFFICES IN ALL PRINCIPAL CITIES C^/ie Cjvolttiion oj JOHNSON t^fj/jcirttiiis. Original box-woodthermostat withelectrical contactand electro-pneu-matic switch tocommand valvesand dampers. 1890 ?Modern DUALthermostat. Oi •temperature duiing the day. A reduced temperature at night orduring non-occu-pancy hours.
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Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjectarchitecture
