This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
Electric motors are especially adapted for use in connection with fans. They are easily controlled by a switch and starring box or regulator. The motor may be directly connected to the fan shaft or it may be belted. Fig. 18 shows a fan with direct-connected motor.