Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 430
plates which lap will not match, orwill be half-blind (Fig, 327). This difBculty arises whenmassive plates are presented by hand to thepunch and the work is done too rapidly.The holes are laid out or are marked onthe plate, and the punch mechanism throwninto gear when the mark is under the axisof… … Fig. 327. Gang-punches avoid this trouble so far as each set is concerned, but bestresults are had from the use of feeding-tables on which theplate rests, and which are fed forward by racks or similar feed-devices, so that the plate moves each time through the samefixed distance, thus securing…
Mechanical engineering · Steam power plants
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Il terzo [-qvinto] libro ... (1551)](https://img.insideoutlibrary.com/img/200/ia-ilterzoqvintolib00serl-209-347.webp)
