Reliable vacuum and vacu-vapor heating equipment (1915)
The Bishop-Babcock-Becker Co. · The Bishop-Babcock-Becker Co. · leaf 55
teamadmitted by partially orfully opening ports in seat COMPOSITION SEAT on which valve turns. It isI Meaning, and unaffectedby steam. The Vacu-Graduate Packless Radiator Valve Patent $ Applied -For % inch size A Vacu-Graduate Packless Valve with wheel-handle is installed on the supply end of each… … THE RELIABLE RETURN LINE with a wheel-handle is to eliminatedanger of breakage, as people arebound to step on these valves toreach a window shade, etc. The Vacu-Graduate Valve isself-cleaning. Thevalve always turns onthe seat, so dirt cannotaccumulate and wearseat, as is the case withthe majority…
Heating units · Vacuum-tube collectors · HVAC ducts and casings
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