Chicago: Askania Regulator Co, 1946.
Illustrated by Illustrated. First Edition. Spiral Bound. Good with no dust jacket. Item #14157
Library stamps/marks/labels/pocket/slip, 3" and several 1" spine edge cover tears, rubbed, edge creasing, tone, otherwise light wear. Still solid spiral bound paperback. ; Two of two volumes, complete. Volume 2 has 392 diagrams in approximately 125 pages. Ziebolz developed the concept of functional analogs as common denominators in systems behavoir. His first intention in writing this book was to clarify the confused patent situation "by illustrating how the same function in measurement, computing and feedback control could be accomplished electrically, pneumatically, hydraulically, and mechanically. ... It was a bible for inventors of simillar devices ..." - L E Slater, Transactions of the ASME, March 1975, page 4. First Edition of this classic and innovative work in mechanical engineering. ; Ex-Library; 277;  in 2v pages.