Boston Envelope Co completely modernized motor drives of its machinery, installing both variable-speed and constantspeed units, enabling full advantage to be taken of production line routing, concentrated controls at operators' positions, eliminated troubles from oil and dirt falling on d-c motor commutators, conserved space, etc.
Induction motors provide flexible drive
Elec World
Electrical World ; 106 , n 39
1936
Article (Journal)
English
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