The main drafting force occupies the fifth floor of the office building and the third floor of the adjoining building, but for some classes of work squads of draftsmen are located directly in the factory buildings. More than 300 skilled draftsmen are employed; nearly 200,000 drawings are filed in the fireproof vaults, and these drawings are classified and cross indexed by the use of approximately 900,000 cards. About 25,000 new drawings are added each year, and on each drawing from 5 to 50 parts are specified.
[Photo: A Section of the Drafting Room: original size (31K) | 4x enlarged (103K)]
Drawings and tracings made in the Drafting Room are transmitted by a carrier system to the Blue Printing Department on the second floor of Building No. 4. The annual output of this department is more than 1,000,000 blue prints, which are easily produced without regard to sunlight by the interesting electric printing frames and automatic washing and drying machinery. A receipt is required for each print delivered and a record is kept of its location.