Pleger, John J · Chicago : The Inland printer company · leaf 83
rilled the entire length, and a shield to protect the cordsand blankets, attached above the apron near the lay-boy,is, likewise, an efficacious remedy. DISC RULING MACHINE. The disc ruling machine has been on the market fora number of years and, unlike the pen machine, it is builtof steel and… … McAdams Disc Ruling Machine. a sheet, the pen machine excels. Any do^^^l pattern con-taining about thirty struck lines which are run fromeither one or two heads can be more economically exe-cuted on a disc machine. It is obvious that for intricatedown-line striking, this machine can not compete…
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