Browse Prior Art Database

Multibase Indexing

IP.com Disclosure Number: IPCOM000086818D
Original Publication Date: 1976-Nov-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Nilsson, AR: AUTHOR

Abstract

typing system is normally structurally limited to one base index, such as 5 1/3 lines per inch for proportional spacing or 6 lines per inch for 10 or 12 pitch. Greater flexibility is provided in terms of multiple base indexes for 5, 5 1/3, 7, 8, etc., lines per inch, when a stepping motor is connected to a platen and appropriately geared such that manipulation of the pitch-change lever results in selection of a particular index base. Human factor problems are still present, though when text is prepared on one system and is to be played out in final copy on another. These human factor problems are overcome by causing base index codes to be stored during input keying, according to the position of the pitch-change lever. Upon later playout, the stored index base will override the pitch-change lever setting.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Multibase Indexing

typing system is normally structurally limited to one base index, such as 5 1/3 lines per inch for proportional spacing or 6 lines per inch for 10 or 12 pitch. Greater flexibility is provided in terms of multiple base indexes for 5, 5 1/3, 7, 8, etc., lines per inch, when a stepping motor is connected to a platen and appropriately geared such that manipulation of the pitch-change lever results in selection of a particular index base. Human factor problems are still present, though when text is prepared on one system and is to be played out in final copy on another. These human factor problems are overcome by causing base index codes to be stored during input keying, according to the position of the pitch- change lever. Upon later playout, the stored index base will override the pitch- change lever setting. Therefore, upon final copy playout, the operator will not have to be concerned with manipulating the pitch-change lever.

1