ASYNCHRONOUSLY CONTROLLED ARRANGEMENT FOR FEEDING RECORD CARDS

• US 3,580,566 A
• Filed: 04/14/1969
• Issued: 05/25/1971
• Est. Priority Date: 04/23/1968
• Status: Expired due to Term

• Current Assignee: Vasse Jacques
• Original Assignee: Vasse Jacques
• Inventors: VASSE JACQUES
• Application Number:
  US04/815,846
• Time in Patent Office: 771 Days
• US Class Current: 271/110
• CPC Class Codes: G06K 13/10 from magazine to conveying arrangement

Abstract

A card-feeding arrangement comprising a friction roller controlled by an electromagnet for advancing a card through a throat as far as driving rollers and a detector. A pulse generator receives a control pulse for feeding a card, transmits in response a first pulse to the electromagnet through a first switch and thereafter a signalling pulse through a second switch; the arrival of a card in the detector transmits a pulse which opens the switches and hence deenergizes the electromagnet and prevents the transmission of the signalling pulse.

Claims

1. In a card-feeding magazine, an asynchronously controlled arrangement for the extraction of cards one-by-one from the said magazine, the said arrangement comprising in combination guide means for a stack of cards resting on edge on one longer side, a substantially vertical fixed bearing plate against one face of which the card stack is constantly pushed, a cArd-extracting mechanism disposed level with the fixed plate and comprising a driving device with a friction roller mounted on a shaft continuously rotating in a movable support disposed towards the other face of and opposite an aperture in the said fixed plate and normally maintained in an inoperative position, the movable support of the friction roller being fast with the movable armature of an actuating electromagnet and so arranged that when the said electromagnet is energized the friction roller is brought into an operative position in which it is in contact with the first card of the stack so as to carry the latter along by friction through a throat situated below said stack, as far as a pair of continuously rotating driving rollers disposed immediately below the said throat, and a card engageable detector which is disposed immediately below the point of engagement of an extracted card, between the said driving rollers, the said detector being connected to an electric monitoring circuit adapted to interrupt the energization of the said electromagnet in order to return the said friction roller into the inoperative position as soon as the lower edge of a card is engaged between the said driving rollers.

2. An arrangement according to claim 1, characterized in that it comprises in addition a first and a second normally closed switching device and an electric pulse generator which receives at one input an extraction control pulse and is adapted to supply in consequence a first actuating pulse which is transmitted by the said first switch to the winding of the actuating electromagnet of the said friction roller, this pulse lasting at least until the lower edge of an extracted card reaches the said detector, the generator supplying in addition at a second output and after the said first pulse a second pulse which can be transmitted by the said second switch to an incident-signalling device, the said detector being adapted to bring about the opening of the said first and second switches when it detects the lower edge of a card.

3. An arrangement according to claim 1, characterized in that the said fixed bearing plate against which the card stack is constantly urged comprises a lower plane portion substantially perpendicular to the stack of cards and extending over a height substantially less than one-half of the width of the said cards in the direction of the height, a second portion following the first portion and situated above it being inclined at an angle of about 5* from said first portion in the direction of travel of the card stack, the opening in the said fixed plate for the passage of a friction roller extending on either side of the intersection of the two planes forming the said bearing plate, which is disposed midway along the length of the cards and extends over about one-half of this length.

4. An arrangement according to claim 3, characterized in that the said mechanism for the extraction of cards from the magazine comprises two friction rollers mounted on a common shaft, actuated at the same time and spaced apart by about one-third of the length of the cards.