Public domain
Vacuum shaping machine. Flat carcasses taken from the storage racks are placed in this vacuum machine in which two things happen. First a combination vacuum suction and squeezing action pulls the tire into the shape it will always have in use. Second, an airbag is forced into the inside to provide i
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineVacuum shaping machine. Flat carcasses taken from the storage racks are placed in this vacuum machine in which two things happen. First a combination vacuum suction and squeezing action pulls the tire. 1941-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.