Technical Blueprint of an Electrical Device
Drawing
This blueprint features a detailed isometric projection of an electrical component, possibly a coil or transformer encased within a protective housing. The schematic is drawn using fine white lines on a blue background, a standard cyanotype reproduction technique used in engineering and patent documentation during the late 19th and early 20th centuries. The image includes layered internal structures, suggesting a complex electromagnetic or power-related application.
This blueprint is likely associated with electrical engineering innovations of the late 19th century, possibly related to Latimer's or Edison’s electrical advancements. Given the structural complexity, it may be a component of an early lighting or power distribution system, aligning with industrial electrification projects during this period. Blueprints like these were essential for patent applications, manufacturing processes, and engineering designs. Their precise line work ensured accurate fabrication of electrical components, and the use of cyanotype printing allowed for efficient reproduction and archival purposes.
The Lewis H. Latimer Papers (1870-1929, 1972) [QPL Subgroup]Latimer Family Papers (1870-1996 ) [QPL Full Collection]