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US 3,973,264 AGranted
Stylus assembly for facsimile receiver
AssigneeGraphic Sciences, Inc.
InventorsMatthew J. Costello, Donald T. Dolan, Andre T. Debaudringhien, Antoon M. Hurkmans, Kenneth R. Jasinski, Edward G. Keplinger
Life of this patent
Estimating the term…
Abstract
A facsimile receiver reproduces documents at remote locations automatically while unattended. The receiver includes a telephone coupler for receiving data over a telephone line, a scan converter, a single-stylus scanner, and automatic paper feed, extraction and stacking mechanisms so that a large number of documents may be reproduced and stacked in sequence in the absence of an operator.
Claims24
A stylus assembly comprising
- a stylus support plate, and
- a wire stylus mounted on said support plate by apparatus including a spring which urges said stylus in a direction parallel to said support plate toward a sheet of paper on which said stylus is to perform a writing operation, said spring also urging said wire stylus in a second direction away from said support plate to insure contact of said stylus with an electrical supply member adjacent to said support plate.
A stylus assembly for use in performing a printing operation on paper comprising
- a stylus support member including a flat base portion having a long axis and having first and second ends, a first vertical wall at said first end of said base member, a second vertical wall at said second end of said base member, and a third intermediate vertical wall between said first and second walls,
- a first lateral wall disposed adjacent to said first vertical wall and projecting laterally, from said base portion in one direction, said first lateral wall having an aperture,
- a second lateral wall disposed adjacent to said third vertical wall and between said first and third vertical walls and extending laterally from said base portion in the opposite direction, said second lateral wall having a horizontal slot,
- a vertical slot in each of said first and second vertical walls,
- a vertical slot in said third intermediate wall,
- a wire stylus disposed parallel to said base member and lying in said vertical slots in said first, second, and third vertical walls, and
- a helical spring wound about and secured to a portion of said stylus and extending, in compression, between said first vertical wall and said third intermediate wall whereby said stylus is urged in a direction parallel to said base portion,
- said spring being wound to impart a torque to said stylus to urge said stylus upwardly away from said base portion,
- said spring having a first end slidably inserted in said horizontal slot in said second lateral wall and a second end seated in said aperture in said first lateral wall.
6 more elements
A stylus for a facsimile receiver, said stylus comprising
- a stylus housing,
- a rectilinear stylus body mounted in said housing, and
- a spring coiled around said stylus and urging said stylus in a first direction outwardly of said housing, said spring being connected to generate a tensional force to urge said stylus in said first direction and to generate a torsional force to urge said stylus in a second direction transverse to said first direction.
A stylus head for carrying a stylus across a writing table in a facsimile receiver, said head comprising,
- a frame,
- means mounting said frame for positioning in either of two positions, a first of which positions places said head adjacent said writing table for contact of said stylus therewith and a second of which places said head remote from said table and provides access to said stylus,
- first and second pulleys mounted on said frame and having their axes generally parallel to each other and spaced apart in a direction transverse to said axes,
- a belt mounted on said pulleys and having a plurality of sprocket apertures by which it is driven, one of said pulleys having a sprocket thereon for engaging the sprocket apertures on said belt to thereby drive said belt,
- the sprocket on said one pulley being disposed intermediate inner and outer freely rotating cylindrical pulley segments and in which said sprocket is driven from said driving belt,
- the other of said pulleys having a flange thereon,
- the axes of said pulleys being skewed to each other to cause one edge of said belt to ride against said flange and thereby accurately fix the position of said belt on said pulleys,
- a stylus mounted on said belt, and
- a flexible driving belt connected to drive one of said pulleys and permitting movement of said head between said first and second positions.
6 more elements
Dependencies are inferred from the claim text.