NEW GLASS IS MADE BY THE FORD MOTOR COMPANY OF DEARBORN, MICHIGAN]

The original catalog description provided by the Ford Motor Company reads as follows: Worker in mixing room of glass plant, vats, scales - worker weighing out proper amount of sand - other ingredients being added, mixture dropping through bottom of vat - mixture pouring from chute into furnace, worker pushing mixture into furnace worker removing brick from furnace wall, looking at flame through glass filter - view of line of furnaces in operation - molten glass moving under roller. “The glass plant.” “Every fifteen minutes a batch of materials is mixed and automatically fed into arch furnace.” “Charging a tank with a batch at the ‘dog house.’” “Henry Ford’s idea of making glass on a conveyor was at first thought impracticable, however it has worked so successfully that today it stands as an example of efficiency in glass manufacture.” “Molten glass in the furnace has a temperature of 2,600°F.” “Now we see it being rolled into a wide ribbon on a conveyor running through a 470 foot lehr in which it cools gradually to 150°F.” “It is then cut and the rough plates set in plaster of parts on the grinding conveyor.” [1928]