Safety Glass (1930s, silent)

This 1930s film follows the journey of two people in a car as they witness the process of making safety glass. The car passes through an intersection and a rock hits the windshield, leading to a man getting out to inspect the broken windshield. This prompts the film to explain how safety glass is made, from the excavation of sand, to the blasting, milling, classifying, pressing, melting, sampling, mixing, briquetting, transporting, sampling, blowing, trimming, grinding, and making of different types of glass. The process begins with the excavation of sand and its transportation to a small warehouse. The sand is then screened and put into a mill to break down the lumps, before being pressed and placed into a kiln. The sand is then discharged and transported to the glass plant where it is sampled, mixed, briquetted, and transported to the furnace. In the furnace, the temperature is recorded, the batch is sampled, and a bubble of glass is blown. The glass is then inspected, cut into sheets, and trimmed before being turned over and transported to the grinding floor. There, the glass is electrically driven and fed with sand and water before being laid on a bed of plaster, pressed, and ground.

We digitized and uploaded this film from the A/V Geeks 16mm Archive. Email us at footage@avgeeks.com if you have questions about the footage and are interested in using it in your project.