초록 ▼

A programmably alterable incrementing system particularly adapted for use in conjunction with an apparatus for selectively indexing punch cards or like sheet material through a work station; such apparatus being particularly susceptible to errors in tolerance such as may be due to inaccuracies in me

A programmably alterable incrementing system particularly adapted for use in conjunction with an apparatus for selectively indexing punch cards or like sheet material through a work station; such apparatus being particularly susceptible to errors in tolerance such as may be due to inaccuracies in mechanical components, but which are particularly attributable to variation in humidity conditions. Means including a stepping switch are provided to introduce a corrective factor, as needed, into the indexing system to ensure that the required correspondence exists between the actual and the intended increment imparted to a punch card as it is advanced through the work station.

대표청구항 ▼

An incrementing system for punch cards, or like sheet material, said incrementing system being adapted to incrementally index said punch card or sheet material through a work station, comprising first means adapted to operatively engage the surface of said punch card or sheet material to thereby adv

An incrementing system for punch cards, or like sheet material, said incrementing system being adapted to incrementally index said punch card or sheet material through a work station, comprising first means adapted to operatively engage the surface of said punch card or sheet material to thereby advance said card or sheet material through said work station, control means operatively connected to said first means to cause said punch card or sheet material to be selectively advanced a predetermined distance through said work station, and means operatively connected to said control means and adapted when set to introduce one or more predetermined corrective factors to compensate for differences in intended and actual incremental displacements introduced in the advancement of said punch card or sheet material through said work station said differences being brought about by changes in the dimensions of the operative components of said first means and/or in said punch card or sheet material.