Reliable vacuum and vacu-vapor heating equipment (1915)
The Bishop-Babcock-Becker Co. · The Bishop-Babcock-Becker Co. · leaf 45
of equipment included with these pumps NOTE THE SIMPLICITY The RELIABLE Electric Vacuum Pumps arepositive-acting, and require much less power thanany other vacuum pump. The cost for currentis only i to i that of other makes. RELIABLEPumps are remarkably simple in construction,having no small or… … See page 38 for list of equipment included with these pumps The RELIABLE Electric Vacuum Pumps areautomatic; noiseless; and draw condensation andair continuously when in operation. With theirdouble speed reduction, they work so perfectlythat they use but i to i the power required to op-erate other…
Heating units · Vacuum-tube collectors · HVAC ducts and casings
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