or Smythe sewing
a method of sewing together folded, gathered, and collated signatures with a single thread sewn through the folds of individual signatures.
Origin of Smyth sewing
after David M. Smyth (1833–1907), Irish-born U.S. inventor, who designed a machine performing this kind of sewing
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019