Historical Arc Lamp Diagram - Early Electric Lighting Technology #124161 (License: Personal Use)

This black-and-white technical illustration depicts a classic carbon arc lamp from the late 19th century, featuring a U-shaped glass envelope enclosing two vertically aligned carbon electrodes held by adjustable clamps. The lamp rests on a two-tiered insulating base, likely made of ebonite or porcelain, designed to prevent short circuits and support the heavy glass structure. Fine linework highlights mechanical details such as terminal connectors and electrode feed mechanisms, characteristic of period engineering diagrams.

Used in educational, historical, or museum web pages about the evolution of electric lighting; serves users researching early electrical engineering, vintage illumination technology, or preparing academic/technical content on pre-incandescent lighting systems.