Browse Prior Art Database

Ledger Card Feed for Typewriter

IP.com Disclosure Number: IPCOM000094396D
Original Publication Date: 1966-Oct-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 76K

Publishing Venue

IBM

Related People

Hyden, IF: AUTHOR

Abstract

The typewriter permits the insertion of ledger cards from the front of the machine without disturbing the alignment of a journal sheet.

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Ledger Card Feed for Typewriter

The typewriter permits the insertion of ledger cards from the front of the machine without disturbing the alignment of a journal sheet.

Manually operated guide member 10 is mounted by support member 11 in front of platen 12 for movement between an inactive position and an operative position. When member 10 is in the inactive position, the typewriter functions in the normal manner. However, when member 10 is moved to the operative position, it is moved to a position for steering a ledger card between the underside of platen 12 and deflector shield 13 as the ledger card is inserted through chute 14 from the front of platen 12. Concurrently with the movement of member 10 to the operative position, pressure rolls 15 located on the portion of platen 12 adjacent to chute 14 are released. The pressure rolls 16 on the remainder of platen 12 remain in position. Rolls 16 thus maintain the pressure on the journal sheet to prevent the displacement of this sheet during the insertion of the ledger card into typing position. The action of releasing the pressure on the pressure rolls opposite the ledger card chute is provided by link 17 connecting one end of member 11 and bell crank 18 which is mounted on one end of shaft
19. The other arm of bell crank 18 is coupled to over-center toggle spring 20 so that when member 11 is moved to the operative position the linkage causes the shaft to be rotated and spring 20 holds the mechanism in this position...