Boots – shoes – and leggings
Patent
1976-12-30
1978-08-29
Thomas, James D.
Boots, shoes, and leggings
G06F 724
Patent
active
041108370
ABSTRACT:
This invention describes an automatic sorter which consists of a linear array of n modules called permuters. Each permuter contains an upper-lower pair of registers, a comparison mechanism and gating arrangement to the permuters immediately above and immediately below. A sequence of N records, N being no larger than 2n, can be loaded, one at a time, into the sorter from the top during the "down mode": at the same time each of the permuters function to save the lower-ordered record in the lower register, to expel the higher ordered record to the permuter below, and to receive a record from above into the upper register.
As soon as all records are loaded, the sorter enters the "up mode" of operation, in which each permuter keeps the higher ordered record in the upper register, expels the lower-ordered record through the top, and receives a record into the lower register. The uppermost permuter thus ejects one record at a time, in sorted order. There is no discernible sorting time, the sorting being completely overlapped by the loading and unloading of information records.
REFERENCES:
patent: 2798216 (1957-07-01), Goldberg
patent: 3636519 (1972-01-01), Heath
International Business Machines - Corporation
Leal Peter R.
Thomas James D.
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