| 摘要 |
<p>A device for inserting letters into envelopes includes an outlet ramp on an extractor of a letter folding machine situated above an ascending ramp along which an envelope originating from a conventional feeder moves upwards. The ramp is oscillating at its lower end mid-portion wherefore it is brought closer to or is separated from the ramp of the extractor. The oscillating ramp is preferably activated by an electromagnet which releases the envelope during its discharge from the feeder, bringing the ramps closer together and arranging another envelope when it is positioned in front of the ramp of the extractor of the letter-folding machine. The oscillating ramp is provided with three tangential rollers fixed thereto and below the ramp, the two end rollers whereof projecting to the envelope receiving surface, the anterior being situated immediately below a folded letter inlet roller pertaining to the letter extracting ramp, while the other roller is situated below the envelope which is pressed against the oscillating ramp by the action of springs with the flap situated below the folded letter extracting ramp.</p> |
