Blueprint of Standard Gate Valves – Chapman and Jenkins Models
Archive
A blueprint-style engineering document featuring technical illustrations and measurement tables for two types of gate valves: Chapman and Jenkins. The left side contains the Chapman Gate Valve size chart, while the right side presents the Jenkins Gate Valve specifications. The central illustration provides a detailed technical drawing of a gate valve, labeling dimensions such as height, width, and structural components. The note at the bottom explains that the 4½-inch valve is longer than the 5-inch due to construction differences. This document is a crucial reference for engineers and manufacturers involved in fluid control systems in the late 19th century.
Dated January 1889, this blueprint provides specifications for Chapman and Jenkins gate valves, widely used in industrial and municipal water systems. The document includes a technical drawing of the valve mechanism and detailed size charts for each model, indicating precise measurements for different dimensions. Evidently, this blueprint was not created by Latimer, but he probably used it in his work for the Edison Electric Light Company.
Latimer Family Papers (1870-1996 ) [QPL Full Collection]