Original Publication Date: 1964-Mar-01
Included in the Prior Art Database: 2005-Mar-07
The mechanism mechanically senses a punched card containing alpha-numeric information and advances a print bar to position a character at the print line.
The mechanism mechanically senses a punched card containing alpha- numeric information and advances a print bar to position a character at the print line.
In the upper drawing, the mechanism has a print bar having on its lower edge a series of different letters L and numerals N arranged as indicated. The print bar, arranged to move horizontally, is advanced toward the right in two successive, but distinct steps thus positioning the desired character adjacent the print line. These two successive movements correspond respectively to the information in the in-text and out-of-text zones of a punched card. The first movement, which is controlled by the in-text zone, results from a counter- clockwise rotation of the compound gear. This is moved in response to translation of the digit bail to the right. Motion is imparted to the digit bail by engagement with an in-text hole. The digit bail continues to rotate the compound gear. This, in turn, drives the print bar to the right at a speed four times that of the card. Such drive occurs until the zone bail engages an out-of-text hole. This action causes the zone and digit bails, compound gear, and type bar to translate to the right as a unit at a speed equal to that of the card.
The upper drawing shows the relative position of the bails after the card sensing operation has begun, but prior to the sensing of the in-text hole. During this initial period, the zone bail rests on top the digit bail, which...