Illinois Society of Architects · Chicago · leaf 225
MUJVIF^JHI^K^^ OO., ts:js.i^js.i^ijs.^cyo^ jmich. American Engineering Specialty Company WEBSTERWEBSTERWEBSTERWEBSTERWEBSTER WEBSTER AGENTS FORSYSTEM OF HEATINGFEED WATER HEATERSSTEAM SEPARATORSOIL SEPARATORSCHEMICAL FEED WATER TREATMENTWATER AND AIR RELIEF VALVES ENGINEERING SPECIALTIES 1510… … 224 demonstrated to his entire satisfaction that more heat vmits may be extracted froma pound of coal by the use of steam at or below 212 degrees Fahr. than at any degreeabove that point. Actual comparative tests using the same heating plant with andwithout vacuum attachments have shown a fuel…
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