Motorgetriebener Umschlagoeffner mit selbsttaetiger Zufuehrung

摘要

An automatic feeding, power-operated envelope opener which is operative in such a manner that, when a switch actuating lever is operated by an envelope travelling on an envelope mounting table, an on-off switch of the opener is actuated to set an electric motor in motion and two rotary cutter elements whose shafts are slightly inclined relative to each other are driven by the drive of said motor through a transmission gearing, with the peripheral edge portions thereof in contact with each other at an acute angle, whereby the envelope is cut at one edge by the coaction of said rotary cutter elements.