Browse Prior Art Database

Stencil Card Holder

IP.com Disclosure Number: IPCOM000098530D
Original Publication Date: 1959-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Hamilton, FG: AUTHOR

Abstract

In this document holder and positioning device for a printing mechanism, the holder is reciprocated in positive increments, while the platen is rotated in one direction distributing platen usage uniformly. Such a device is useful for handling checks, stencils and the like.

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Stencil Card Holder

In this document holder and positioning device for a printing mechanism, the holder is reciprocated in positive increments, while the platen is rotated in one direction distributing platen usage uniformly. Such a device is useful for handling checks, stencils and the like.

With the holder 1 in its lowest position, as shown, the card is inserted between it and the platen, in trough 2 and against stop 3. Carriage return at the end of the first line of typing causes index pawl 4 to rotate feed ratchet 5 secured to a ratchet 6, each having the same number of teeth oriented in the opposite direction. Rotation of ratchets 5 and 6 actuates gear sector 7. This is affected by pawl 8 carried on an extension of sector 7. Sector 7 is secured by a sleeve to sector 10 which is connected by shaft 11 and gears 12 to a second sector 9. The sectors 7 and 9 engage teeth formed in arms on each side of holder 1. Rotation of sectors 7 and 9 imparts a linear motion to the carrier. This continues for each carriage return until pawl 8 is engaged by a stationary stop 13 rocking the tail of the pawl until it reaches a position to be engaged by a spring urged latch 14 carried by sector 7. In this position the pawl 8 is disengaged from ratchet 6 freeing sectors 7 and 9 and permitting holder 1 to drop returning sectors 7 and 9 to normal. This brings latch 14 against a stop 16 rocking it out of engagement with pawl 8 restoring the device to normal.

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