Advancing material of indeterminate length – By intermittent material-mover – Comprising reciprocating or oscillating material-mover
Patent
1977-05-16
1978-05-30
Schacher, Richard A.
Advancing material of indeterminate length
By intermittent material-mover
Comprising reciprocating or oscillating material-mover
101382MV, 346136, B65H 1736
Patent
active
040919803
ABSTRACT:
A plotting apparatus has an automatically controlled carriage assembly for precisely controlling movement of a plotting instrument relative to an associated section of an elongated strip of plotting paper supported on a table which has a stationary low-friction work surface. A coupling mechanism mounted on the carriage assembly includes a friction shoe movable into frictional gripping engagement with the plotting paper to releasably couple the paper to the carriage to move with it and in sliding engagement with the stationary work surface whereby another section of the plotting paper may be moved into plotting position on the work surface when the plotting instrument is not operating.
REFERENCES:
patent: 2686050 (1954-08-01), De Zelar
patent: 3844461 (1974-10-01), Robison
Gerber Scientific Instrument Company
Schacher Richard A,.
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