Title: Photoelectric line follower

Abstract: An arrangement for cutting workpieces with a scanning device having a signalling photoresistor which detects markings, with an attached control device which contains a first timing element to which a switch for reducing the rate of speed is connected includes an OR-element connected between the first timing element and the switch with a further timing element connected by means of an AND-element to the input and output of the timing element with the input of the further timing element being connected to the output of the AND-element and the output of the further timing element being operationally connected to the input of the OR-element.

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Inventors: Bohme, Dietrich (Kahl (Main), DT)
Schumann, Gunter Hellmut (Ober-Roden, DT)
Hahn, Gunter (Hausen, DT)
Jung, Rolf (Waiblingen, DT)

Application Number: 711844
Filing Date: 1976-08-05
Publication_date: 1978-03-28
Assignee: Messer Griesheim GmbH (Frankfurt am Main, DT)
Primary Class(es): 250/202 318/577
Other Classes:
US Patent Ref:

3566129	Feb, 1971	Bardwell et al.	318/577.
3883735	May, 1975	Murphy et al.	250/202.
3920316	Nov, 1975	Daguillon	250/202.

Other Refs:
Primary Examiner: Helms, David C.
Assistant Examiner:
Attorney: Connolly and Hutz