Uniform indexing of paper forms

Details Uniform indexing of paper forms Uniform indexing of paper forms

1977-12-27

1979-11-27

Skaggs, H. Grant

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

226121, 226143, 226188, 4006161, 400551, 185 40R, G03B 130

Patent

active

041756878

ABSTRACT:
The accurate and uniform indexing of paper business forms with line hole punched margins. The index drive overcomes any possible accumulation of errors. A pawl and ratchet device is employed in the feeding of the paper form. The ratchet is rotated approximately one-half tooth beyond the ultimate desired stop. A spring urged arm then pulls the ratchet wheel back that one-half tooth turn so the pawl rests solidly in a single ratchet tooth. It is this same spring arm that pulls back the over-fed paper form. The form pull back is permitted by reason of a magnetic one-way clutch being momentarily released at the end of the mechanical feed-out. The present device is a combination of a mechanical drive with a magnetically releasable clutch to effect a constantly accurate feed out of paper forms resulting in identical positioning of each of the series of continuous paper forms.

REFERENCES:
patent: 3371834 (1968-03-01), Willits et al.
patent: 3381867 (1968-05-01), Konkel
patent: 3856128 (1974-12-01), Taggart

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