Generator and Motor System at the Chicago, Rock Island and Pacific Railway, (2 folders, ca. 1890)
Archive
A blueprint-style electrical diagram illustrating the interconnections between generators, balancers, and motors. The chart provides voltage specifications, component labels, and connection paths, showing different motor types, including constant voltage series, shunt, and compound wound motors from multiple manufacturers. The document also labels armature, series field winding, shunt-field winding, field rheostat (FR), and armature rheostat (AR) components. This technical drawing is Tracing No. 3121 and appears heavily worn, with visible tears and damage.

This document is part of Exhibit No. 1, referenced in W.C.B. Report No. 163. It details the electrical systems used at the Chicago, Rock Island & Pacific Railway Co. Shops in Silvis, Illinois. The schematic shows a Bullock Balancer Set, generator, and motor connections, providing insight into early railway electrical engineering and power distribution.
Latimer Family Papers (1870-1996 ) [QPL Full Collection]
Exhibit No. 1 - Diagram of Generator, Balancer, Distribution Circuits, and Motor Connections