Pin tractor

Details Pin tractor Pin tractor

1986-12-11

1988-04-05

Levy, Stuart S.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

G03B 122

Patent

active

047353520

ABSTRACT:
Pin tractors for feeding blank paper in various printers, typewriters, etc. for use as output devices for electronic computers, especially for personal computers. A belt carrying pins is wound rotatably around a driving toothed pulley and a driven pulley. A driven pulley is fitted rotatably to a cylindrical part of a fixing member composing a lock means to fix a frame to a guide shaft or to a tubular part of a revolving member.

REFERENCES:
patent: 4130230 (1978-12-01), Seitz
patent: 4199091 (1980-04-01), Hubbard
patent: 4214691 (1970-07-01), Van Namen
patent: 4315585 (1982-02-01), Seitz
patent: 4421261 (1983-12-01), Hubbard
patent: 4569468 (1986-02-01), Neer
patent: 4614287 (1986-09-01), Ueno et al.

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