Here's a 1950s clip showing the inner-workings of a window shade factory in Cincinnati, Ohio. 

Window shades undergo "destruction testing," which makes use of a rotating disk. 

At the Clopay Corporation, we see employees working, and machines cutting and shaping wooden dowels or rollers.

Female employees assemble wooden rollers by using various machines.

Shades or sheets of plastic are embossed as they pass through the rollers of a machine.

The production of a window shade is seen from the beginning, as its liquid plastic moves through various machines, to the very end of the process when each shade is inspected.

In the clip's final scenes, female workers make accordion doors out of the material, and a lady from the suburbs walks through an accordion-shade-covered doorway.