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Browse Prior Art Database

Positionable Acoustic Hood Incorporating a Positionable Visor

IP.com Disclosure Number: IPCOM000088671D
Original Publication Date: 1977-Jul-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Alexander, JS: AUTHOR [+3]

Abstract

An acoustical hood for a typewriter is positionable to various fixed positions to facilitate paper handling and printing operations and, further, incorporates a visor which is positionable to various discreet positions in accordance with ambient lighting conditions to reduce glare and to minimize operator's loss of view of typed page by aligning the visor with the line of sight of the operator.

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Positionable Acoustic Hood Incorporating a Positionable Visor

An acoustical hood for a typewriter is positionable to various fixed positions to facilitate paper handling and printing operations and, further, incorporates a visor which is positionable to various discreet positions in accordance with ambient lighting conditions to reduce glare and to minimize operator's loss of view of typed page by aligning the visor with the line of sight of the operator.

Typewriter 11 (Fig. 1) includes a clear plastic hood 13 having a positionable visor 15 pivotally mounted thereon. The visor 15 is made of translucent plastic while the hood 13 is made of transparent plastic. By adjusting the angle between the hood 13 and the visor 15, the light reflected from the surface 17 of the hood can be reduced.

With reference to Fig. 2, the visor 15 is pivotally mounted to frame member 19 which includes a segmented portion 21. Spring steel member 23 is secured to the visor 15 and falls within the grooves 25-27 of the segmented member 21 as the visor 15 is pivoted, causing the visor to remain in a detented position. The frame 19 is mounted to the hood 13.

With reference to Fig. 3, the entire hood can be pivoted upward so as to carry the visor therewith. The frame member 19 of the hood 13 includes a tongue 31 which rides in the slot 33 of the rotatable detent 35. Detent pin 37 is spring- loaded by spring 38 into the grooves 39 of the detent 35 so as to retain the hood 13 of Fig. 1 in variou...