Apparatus for feeding letters

Details Apparatus for feeding letters Apparatus for feeding letters

1974-10-29

1976-10-05

Blunk, Evon C.

Sheet feeding or delivering

Feeding

Separators

271139, B65H 302, B65H 516

Patent

active

039840964

ABSTRACT:
A method and apparatus for feeding letters from a relatively loose stack of letters, in which each successive end letter in the stack is subjected to repeated impulses applied by a rapidly reciprocating friction surface which moves in a direction having components of movement both transverse to and parallel to the plane of the end letter. The movement is sufficiently rapid that the inertia of the leading letter to movement transverse to its plane substantially increases the pressure between the friction surface and the leading letter as compared with the pressure between that letter and the next in the stack. The friction surface is preferably a relatively uncompressible pad which is moved with an elliptical motion to repeatedly strike the end letter at a speed between 1,000 and 10,000 cycles per minute.

REFERENCES:
patent: 2187123 (1940-01-01), Harm
patent: 2707569 (1955-05-01), Benson
patent: 3726590 (1973-04-01), Kistner et al.

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