Segmented differential capstan roller

Details Segmented differential capstan roller Segmented differential capstan roller

1993-07-14

1994-06-28

Stodola, Daniel P.

Advancing material of indeterminate length

With material-responsive control means

To position material laterally

226190, 226188, 492 39, 400619, B23Q 1600

Patent

active

053239458

ABSTRACT:
A differential capstan roller for a thermal printer is provided by dividing a capstan roller into first and second end segments, and an intermediate middle segment drivingly engageable with a drive shaft to drive the middle segment, and gearing the first and second end segments together differentially. The first and second end segments are driven with the middle segment through the gearing so that the average velocity of the end segments is equal to the velocity of the middle segment at any instant in time but the velocities of the two end segments are not always equal to each other.

REFERENCES:
patent: 2817940 (1957-12-01), Lorig
patent: 3069921 (1962-12-01), Davis
patent: 3507160 (1970-04-01), McPherson et al.
patent: 3810571 (1974-05-01), Fatula
patent: 4335971 (1982-06-01), deMey
patent: 4395152 (1983-07-01), Hendrischk
patent: 4415125 (1983-11-01), Schwengeler
patent: 5011060 (1991-04-01), Cramer
IBM Technical Disclosure Bulletin, vol. 21, No. 3, "Electrostatic Paper Support", Hoekstra et al, Aug. 2, 1978.

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