Commercial bookbinding; a description of the processes and the various machines used (1910)
Stephen, Geo. A. (George Arthur), 1880-1934 · London, W.J. Stonhill and co. · leaf 25
e place exactly inthe centre of the fold. To facilitate the carrying the threads pass into the sectionome ol the holes thus made and comeoul again at others. At the holes ol egressis a series of loopers which hold openthe loops from the previous stitches inorder to allow the needles to pass… … Fig. 20. movement of the needles, a series ol holesis made in the section by punches carriedin the arm ; this method obviates previouspreparation of the section by sawing and ithas the advantage of bringing the burr ofthe paper outside the fold. The needles their original position in readiness for…
Bookbinding
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