Portable instrument for recording electrical load current and op

Details Portable instrument for recording electrical load current and op Portable instrument for recording electrical load current and op

1975-01-08

1976-04-13

Miller, Jr., George H.

Recorders

Combined with external recorder operating means

Well logging

346113, 346116, G01D 900, G01D 1516

Patent

active

039507599

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.

REFERENCES:
patent: 1839608 (1932-01-01), Smith
patent: 1938499 (1933-12-01), Ragsdale
patent: 2340114 (1944-01-01), Duis
patent: 2366548 (1945-01-01), Oestreicher et al.
patent: 2700134 (1955-01-01), Stewart et al.
patent: 2988415 (1961-06-01), Jeglum et al.
patent: 3359561 (1967-12-01), Shostek
patent: 3631518 (1971-12-01), Battaglia
"Resistance Welding/Aircraft" , Welding Handbook, Section Five, pp. 92.21 to 92.23, Fourth Edition, published 1961 by American Welding Society.

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