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Carrier Escapement Mechanism

IP.com Disclosure Number: IPCOM000094158D
Original Publication Date: 1966-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Bleau, CD: AUTHOR [+2]

Abstract

Carrier escapement is made faster and more reliable by minimizing the escapement pawl operating linkage. Print element carrier 10 moves in the direction of arrow 11 under the force of a main spring, not shown, connected to tape 12 and the control of escapement pawl 13 which cooperates with rack 14. Print shaft 15 is cyclically operated each print cycle to perform various functions through individual motion translating cams like print cam 16. Escapement cam 17 drives spring-loaded linkage 18, upon each rotation of shaft 15, to drive pawl 13 out of rack 14 through permissive engagement tab 19. Pawl 13 returns to rack 14 under the force of its return spring 20 and the impedance of its own inertia as linkage 18 is retracted.

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Carrier Escapement Mechanism

Carrier escapement is made faster and more reliable by minimizing the escapement pawl operating linkage. Print element carrier 10 moves in the direction of arrow 11 under the force of a main spring, not shown, connected to tape 12 and the control of escapement pawl 13 which cooperates with rack 14. Print shaft 15 is cyclically operated each print cycle to perform various functions through individual motion translating cams like print cam 16. Escapement cam 17 drives spring-loaded linkage 18, upon each rotation of shaft 15, to drive pawl 13 out of rack 14 through permissive engagement tab 19. Pawl 13 returns to rack 14 under the force of its return spring 20 and the impedance of its own inertia as linkage 18 is retracted.

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