Browse Prior Art Database

Card Punch

IP.com Disclosure Number: IPCOM000091779D
Original Publication Date: 1968-May-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Shakib, ID: AUTHOR

Abstract

Hand-operated punch 10 is for punching columns in card 11 representative of data items such as alphabetic characters. Punching is effected by use of interposer drum 13 having holes 14 and nonhole positions 15 which cooperate with punches 16 upon depression of handle 17 to selectively punch a column of card 11. The latter is advanced by drive sprocket 20a after each depression of handle 17 by energy stored in springs 18 through pawl and ratchet mechanism 19 and 20. Sprocket 20a is released for insert of cards by depression of button 20b.

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Card Punch

Hand-operated punch 10 is for punching columns in card 11 representative of data items such as alphabetic characters. Punching is effected by use of interposer drum 13 having holes 14 and nonhole positions 15 which cooperate with punches 16 upon depression of handle 17 to selectively punch a column of card 11. The latter is advanced by drive sprocket 20a after each depression of handle 17 by energy stored in springs 18 through pawl and ratchet mechanism 19 and 20. Sprocket 20a is released for insert of cards by depression of button 20b.

The operator is assisted in punching a sequence of characters by self- advancing program strip 21. This is prepared by the operator in advance by pencilling each character or data item in a desired sequence in an appropriate space 22. Strip 21 is advanced after each depression of handle 17 by pawl and ratchet 23 and 24, operated by actuator 25 and spring 26 to present a succeeding space 22 at selection window 27.

The operator turns knob 28 to find the character 29 on drum 13 corresponding to the current item displayed by strip 21 in window 27. Handle 17 then is depressed punching the desired character and, upon release, card 11 is advanced by ratchet 20 and strip 21 is advanced one unit to present the next desired character at window 27. Pawl 30 engages ratchet 31 in both the upward and downward travel of handle 17 to insure that such handle is moved through a complete stroke.

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