Typewriting machines – Means auxiliary to typewriting function – Attachment for holding an article
Patent
1994-08-25
1995-11-07
Burr, Edgar S.
Typewriting machines
Means auxiliary to typewriting function
Attachment for holding an article
2484411, B41J 2915
Patent
active
054642930
ABSTRACT:
An apparatus for supporting information to be read and for sequentially highlighting the lines of the supported material comprising a support plate positionable in a generally vertical orientation having a front surface adapted to receive and support material to be read; a line bar slidably coupled to one edge of the support plate, the line bar having a portion positionable across a horizontal strip of the front face of the device to sequentially highlight lines to be read, the support bar adapted to be moved downwardly in response to the actions of an operator; frictional components at the edge of the line bar received in the track, the frictional components adapted to retain the line bar at a particular elevational orientation where last set but to move downwardly vertically in response to an exterior force; a vertically extending stepping bar secured to the rear face of the support plate adjacent to the track the stepping bar including spaced recesses for receiving the locking bar, each recess having a shoulder above and a cam beneath, the stepping bar having a spring urging it to an upward position, the spring being coupled between the edge of the stepping bar and the support plate; and a trigger secured to the stepping bar through a slot in the side of the support plate under the control of an operator to move the stepping bar downwardly against the action of the spring to urge the locking bar downwardly a predetermined distance equivalent to the space between the recesses whereby, when the trigger is released, the spring will urge the stepping bar upwardly and the line bar will remain at its preset orientation as it moves outwardly from the stepping bar through the action of the cam.
REFERENCES:
patent: 679386 (1901-07-01), Lawton
patent: 2523755 (1950-09-01), Ford et al.
patent: 2739569 (1956-03-01), Brazee
patent: 4894756 (1990-01-01), Jan
patent: 5052650 (1991-10-01), Beile et al.
Burr Edgar S.
Nguyen Anthony H.
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