Browse Prior Art Database

Two Machine Mixed Parcel Sorting Apparatus and Method

IP.com Disclosure Number: IPCOM000077700D
Original Publication Date: 1972-Sep-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 3 page(s) / 62K

Publishing Venue

IBM

Related People

Cox, RE: AUTHOR [+2]

Abstract

Parcels randomly conveyed to either of two sorting machines are sorted directly by each machine to high volume destinations; but each machine sorts directly for only one of two groups of medium volume destinations, with those parcels not directly sorted on the first pass being transferred automatically to the other machine for sorting on a second pass. Low volume destinations are segregated into preselected groupings, each sorted in succession on a time-sharing basis during a second pass after being grouped on the first pass.

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Two Machine Mixed Parcel Sorting Apparatus and Method

Parcels randomly conveyed to either of two sorting machines are sorted directly by each machine to high volume destinations; but each machine sorts directly for only one of two groups of medium volume destinations, with those parcels not directly sorted on the first pass being transferred automatically to the other machine for sorting on a second pass. Low volume destinations are segregated into preselected groupings, each sorted in succession on a time- sharing basis during a second pass after being grouped on the first pass.

Bulk mail parcels or the like are manually removed from conveyor 1 by teams of operators at primary induction points W,X and transferred to two structurally identical interconnected sorting machines 2,3, respectively. At W,X, the operators enter onto magnetic tape or the like a record correlating the zip code destination of each parcel with the code number of the particular one of a series of trays 4 into which the parcel is placed. These trays are equally spaced along a conveyor 5 associated with each machine 2,3, and moved thereby at constant speed in a closed-loop path. The trays are preferably tiltable to each side from the vertical to dump the parcel selectively to one side or the other of the path, as the conveyor moves the parcel successively past a series of receivers and machine transfer stations. Zip code destinations of parcels in respective trays are read into a computer, not shown, which is programmed to cause the particular tray to be tilted to one side or the other at a specific point along the path, to cause chutes (like 6,7) to convey the parcel to a bin that receives all parcels destined for a specific zip code or group of zip code destinations.

Parcels for highest volume (group A) destinations are delivered into predesignated chutes in receivers 8a,b provided in both machines 2,3 just downstream of primary induction points W,X, respectively; i.e., there is one chute 6 or 7 for each specific high volume destination or destination group. In machine 2, the parcels are then conveyed past receivers 9a,b that receive all parcels addressed to the preselected medium volume destinations of group B. Meanwhile, in machine 2, parcels addressed to the remaining medium volume destinations that comprise group C will be dumped from their trays and transferred at station 10 from conveyor 5 onto conveyor 11 and moved to secondary induction point Y in machine 3, where operators will again correlate the zip code destination to the code number of the tray into which the parcel is again placed (as was done at W). Meanwhile, those parcels addressed to the low volume destinations of groups D,E will be sorted into preselected subgroups (e.g., a,b,c) and diverted at transfer stations 12,13, respectively, onto...