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IP.com Disclosure Number: IPCOM000091783D
Original Publication Date: 1968-May-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Gibson, DK: AUTHOR

Abstract

Web 10 is fed in incremental steps by capstan 11. The latter is periodically rotated by pawl 12 through engagement with holes 13 forming a ratchet plate 14. The average speed of web 10 is controllable by counter wheel 15 which is movable between the broken and full-line positions shown by control handle 16. In the full-line position, wheel 15 lies between pawl 12 and ratchet plate 14.

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Web 10 is fed in incremental steps by capstan 11. The latter is periodically rotated by pawl 12 through engagement with holes 13 forming a ratchet plate 14. The average speed of web 10 is controllable by counter wheel 15 which is movable between the broken and full-line positions shown by control handle 16. In the full-line position, wheel 15 lies between pawl 12 and ratchet plate 14.

Each reciprocation of pawl 12 indexes wheel 15 one unit by engagement with a narrow slot 17 in it. One or more wide slots 18 are provided in wheel 15 to be engaged by pawl 12 after engagement with a pre-determined number of slots 17. Pawl 12 passes through wide slot 18 into a hole 13 in plate 14 to thus index capstan 11 one feed increment.

A faster average speed is obtained by movement of handle 16 to its broken line position to displace wheel 15 from between pawl 12 and plate 14 as shown in broken lines. In this mode of operation, pawl 12 engages hole 13 and advances web 10 one unit upon each reciprocation.

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