Methodist Book Concern · New York [etc.] Methodist Book Concern · leaf 23
ious machine known asa Smythe sewer, consisting of four revolving armson a shaft which swing around at a Sewing rate oi from lorty to seventy move-ments per minute. The operator merely finds thecenter of the section of the book and hangs it tothe revolving arms, which then engage with… … THE MAKING OF A HOOK or cutting inachiiKs wliore they aiv clampod in I liemachine in i)iles about six inches liigh, and I lieheads, sides, and foot of the books are . trinnned by descending knives with ashear motion. The ])ooks are now ])erfectly flatand square on the back, front, head, and fool.…
Books and reading · Printing · Bookbinding
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