Browse Prior Art Database

Method for Stacking Books According to Sort Levels

IP.com Disclosure Number: IPCOM000105971D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 4 page(s) / 172K

Publishing Venue

IBM

Related People

Colson, JC: AUTHOR [+3]

Abstract

Disclosed is a stacker control method for a demographically controlled bindery line possibly containing multiple asynchronous bindery line sections that stacks books according to the original stack codes, but is capable of modifying the stacks if the codes violate certain parameters of the stacker, such as minimum/maximum stack size. In addition, when books are reordered, the stack missing the original book must be identified so that it may be set aside until the reorder book can be merged with the stack.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 32% of the total text.

Method for Stacking Books According to Sort Levels

      Disclosed is a stacker control method for a demographically
controlled bindery line possibly containing multiple asynchronous
bindery line sections that stacks books according to the original
stack codes, but is capable of modifying the stacks if the codes
violate certain parameters of the stacker, such as minimum/maximum
stack size.  In addition, when books are reordered, the stack missing
the original book must be identified so that it may be set aside
until the reorder book can be merged with the stack.

      When books are first entered into the system they are given a
locally generated unique stack identification number.  The same stack
identification number is given to all books that are to be in the
same stack.  Additionally, the number of books that are in the stack
are retained in a tracking record that can be uniquely identified by
the stack identification number.

      The stack control system must plan for books as early as
possible and then compensate for changes in that plan as books are
lost or moved to different relative positions in the book stream.
This is done by a staged planning method that starts when the books
are initiated.  The next planning phase is when the books enter the
last section prior to the stacking device.  The third planning stage
is optional and is placed just after the last printing device in this
last section prior to the stacking device that might cause a book to
have an error.  This is typically after the printer that is used to
print addresses on the magazine.  The fourth planning stage is
performed when books actually enter the stacker.  Each of these
stages is discussed below.

      Stage 1 - Each book in the bindery control system is assigned a
stack identification number.  For those books that are to be in the
same stack they are assigned the same stack identification number.
Each stack identification number is unique.  For each stack
identification number a new tracking block entry is generated.  The
tracking block contains the number of books that exist in this stack
and the stack identification number as well as other information to
be defined later.  These tracking blocks are kept in a queue that is
available to the other portions of the stack control system.

      Stage 2 - After books have successfully been started in the
system and progressed to the last section of the bindery line the
second stage of planning is performed.

      The stacker control system looks at each book at a predefined
slot to perform preplanning for the stack control.  This slot is
usually as early in the trimmer section as possible.  As a book
passes through the slot then the stacker control system interrogates
the stack identifica- tion number in the book record.  The stack
identification number is used to find the original tracking block in
the original queue.  In addition to keeping the original count of
books i...