Office mailing machines

Claim 1

AN OFFICE MAILING MACHINE COMPRISING AN ADJUSTABLE HOPPER ADAPTED TO RECEIVE A STACK OF ENVELOPES, A POWER DRIVEN ROLLER, A FEED BAR FOR RAISING THE ROLLER INTO MOMENTARY CONTACT WITH THE LOWERMOST ENVELOPE OF THE STACK TO FEED THE ENVELOPES ONE BY ONE FROM THE HOPPER, A WORKING TABLE, A PAIRS OF VERTICALLY ALIGNED CO-ACTING FEED ROLLERS SPACED ALONG THE TABLE FOR MOVING EACH ENVELOPE AS IT ISSUES FROM THE HOPPER, POWER MEANS FOR COLLECTIVELY DRIVING THE LOWER ROLERS OF THE PAIRS OF ROLLERS, OPENING IN THE TABLE THROUGH WHICH OPENINGS THE SAID LOWER ROLLERS PROJECT, A PAD OF RESILIENT MATERIAL AT A FIRST OPERATIVE POSITION ON THE TABLE FOR FACILITATING THE MANUAL OPENING OF EACH ENVELOPE FOR THE INSERTION OF ENCLOSURES THEREIN, A CURVED GUIDE AT A SECOND OPERATIVE POSITION ON THE TABLE FOR ENGAGEMENT BY THE FLAP OF EACH ENVELOPE WHEREBY THE FLAP IS TURNED UP AND THEN OVER EACH ENVELOPE, A MOISTENING DEVICE AT A THIRD OPERATIVE POSITION ON THE TABLE FOR APPLYING MOISTURE TO THE SEALING MARGINS OF THE FLAP, AND A PAIR OF CO-ACTING, VERTICALLY ALIGNED ROLLERS FOR APPLYING PRESSURE TO THE FLAP TO EFFECT THE SEALING OF THE ENVELOPE.