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Free Flight and Powered Flight Adjustments

IP.com Disclosure Number: IPCOM000086489D
Original Publication Date: 1976-Sep-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Morgan, B: AUTHOR [+2]

Abstract

Selectric typewriters require free flight and powered flight adjustments to insure that the impact velocity of the typehead against the platen is proper. Previously iterative approaches were used to adjust one of two different variables and then to alternate with the other one until both remained within limits.

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Free Flight and Powered Flight Adjustments

Selectric typewriters require free flight and powered flight adjustments to insure that the impact velocity of the typehead against the platen is proper. Previously iterative approaches were used to adjust one of two different variables and then to alternate with the other one until both remained within limits.

In the figures, carrier 10 carries a plate 12 which in turn supports screw 14, which is a pivot point. Plate 12 may be adjusted by use of screw 16. Guide plate 18 carries the pivot point 20 thereon. Pivot 20 is fixed spacially by plate 12.

When adjustments of screws 14 and 16 are made to accomplish the appropriate free flight and power flight ratio, the distance between pivot point 22 and rocking axis 24 remains constant, greatly simplifying the adjustments.

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