Geometrical instruments – Straightedge type
Patent
1989-12-20
1990-07-31
Haroian, Harry N.
Geometrical instruments
Straightedge type
358473, 33449, 235483, B43L 700, H04N 110
Patent
active
049440950
ABSTRACT:
There is disclosed a guiding device for use with a computer mouse, the device comprising a body, a friction strip provided on an edge member of the body for securing the mouse to the body while allowing the mouse to operate on a working surface, a bearing fixed to the body, a roller including a horizontal shaft having a longitudinal axis and two ends, the shaft being rotatable in the bearing, the bearing being axially translatable on the shaft, the roller further including working surface engaging wheels fixed to each end of the two ends, the roller substantially supporting the body, and a sight connected to the body for guiding the device to trace an image on the working surface, the device being able to be moved on the working surface in a direction of the axis by a translation of the bearing on the shaft and in a direction perpendicular to the axis by a rolling of the wheels on the working surface.
REFERENCES:
patent: 4561183 (1985-12-01), Shores
patent: 4831459 (1989-05-01), Kimura
patent: 4831736 (1989-05-01), Bryant
patent: 4838791 (1989-06-01), Bogosian et al.
Xerox Disc. Journal, vol. 9, #2, Mar./Apr. 1984, Hand Operated Scanner by Tandon.
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