EARLY REFRIGERATION 1920s-1930s
This Icy Ball (which weighs nearly 40 pounds) was used for refrigeration in the 1920s. It was manufactured by the Crosley Radio Corporation. It was actually a pretty amazing piece of equipment. Listen to George explain how it was used.
In addition, we found this interesting post where Aberdeen Proving Ground did some testing on this concept as late as 1974! This particular Icy Ball was actually used by the Pitcock Brothers in this very building back in the day! Want to know more about how it works? Check out this photo!