Edwin K Ziegenfuss

US Patent:

39507599, Apr 13, 1976

Filed:

Jan 8, 1975

Appl. No.:

5/539477

Inventors:

Edwin K. Ziegenfuss - Bethlehem PA

Assignee:

Bethlehem Steel Corporation - Bethlehem PA

International Classification:

G01D 900
G01D 1516

US Classification:

346 33R

Abstract:

Self-contained portable recording instrument is particularly useful at field sites for recording the magnitude of both welding current and operating duration. A second embodiment is adapted to record the magnitude of welding current, voltage and operating duration. Strip chart records provide analysts with means for determining operator incentive pay when working on field assignments. Records enable determining the quality and duration of actual welds, as well as the occurrence of operator-simulated welding time.