Illustrated catalogue and price list of John Thomson Press Company's platen presses : for letterpress and color printing, embossing, bookcover stamping and paper-box cutting and scoring (1896)
John Thomson Press Company · New York City : J. Thomson Press Co. · leaf 14
consists of the simple cam, attached to and swinging with the bridge. It is engaged by a hardened steel friction roller, mounted in brackets secured to the frame. … impact upon the form. We regard this as an exceedingly important fea- ture, as it obviates the tendency to cramp, greatly decreases the pressure upon the slides, and becomes much more effective in its control of the platen than when these ears are snubbed off short, as in competitive practice. The…
John Thomson Press Company · Platen presses
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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