Pinwheel assembly having improved pins

Details Pinwheel assembly having improved pins Pinwheel assembly having improved pins

1978-08-07

1979-07-24

Shannon, John P.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Rotating sprocket

226 87, B65H 1738

Patent

active

041620321

ABSTRACT:
A continuous form pinwheel, having pins and a platen formed of a durable plastic material, the pins being closely fitted in their seats for the exclusion of foreign matter, having a unique cam follower and radiused at their lower end. The tips of the pins may be formed of steel, thereby eliminating wear on the two major wear areas of the pin. The plastic material contributes to a low coefficient of friction and thus long life.

REFERENCES:
patent: 3066548 (1962-12-01), Shapiro
patent: 3747820 (1973-07-01), Hawxhurst
patent: 4022365 (1977-05-01), Weller
patent: 4036420 (1977-07-01), Lockwood

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