Inverse timer with non-interacting potentiometer settings

Details Inverse timer with non-interacting potentiometer settings Inverse timer with non-interacting potentiometer settings

1977-12-27

1980-04-22

Ruggiero, Joseph F.

Boots, shoes, and leggings

318621, 361195, 364472, 364569, G05B 602, G06G 748

Patent

active

041998081

ABSTRACT:
An inverse timer for a process line is disclosed in which the forward end of the material is detected at a known distance from an instrument which is to be activated. The inverse timer is initiated upon forward end detection, and in a small increment of time, .DELTA.T seconds later, the instrument is activated; .DELTA.T is equal to the time required for the material to move from the point of detection to the location of the instrument, i.e., the transport time minus the reaction time of the instrument. The inverse timer includes two potentiometers for independently adjusting the transport time and the reaction times. Since the velocity of the material may vary widely during production, the inverse timer enables rapid adjustments to be made to accommodate for these new conditions without the laborious empirical determination of optimum settings of interacting potentiometers.

REFERENCES:
patent: 3266279 (1966-08-01), Wright
patent: 3613419 (1971-10-01), Silva
patent: 3777243 (1973-12-01), Taguchi et al.
patent: 3852578 (1974-12-01), Rice
patent: 4052642 (1977-10-01), Speth et al.

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