Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 441
gpo-J Fig. 14. (A) Wiring Diagram for Mecliauical Controller. ates a solenoid which lifts the arm or cross-head, its speed beinggoverned in the same manner by the use of a dashpot. The break-ing of the motor and solenoid circuit is done sirault^neonsly just 849 ELEVATORS 29 prior to tlie stopping…
Architecture · Building · Carpentry
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