Title: Photoelectric line follower

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Claims: What is claimed is:

1. In an arrangement for cutting workpieces with a scanning device which includes a signalling photo-detector for detecting markings and with an attached control device which contains a first timing element to which is connected a switch for switching to a reduced rate of feed, the improvement being an OR-element connected between said first timing element and said switch, a further timing element being connected by means of an AND-element to the input and the output of said first timing element, the input of said further timing element being connected to the output of said AND-element, and the output of said further timing element being operationally connected to an input of said OR-element.

2. Arrangement according to claim 1, characterized by a further input of the OR-element being connected to the output of the signalling photodetector.

3. Arrangement according to claim 2, characterized by the output of an automatic initial cut control being attached to an other input of the OR-element.

4. Arrangement according to claim 1, characterized by the output of an automatic initial cut control being attached to an other input of the OR-element.

Other info:

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