Boots – shoes – and leggings
Patent
1977-03-17
1978-10-17
Wise, Edward J.
Boots, shoes, and leggings
364469, 72 37, B21B 3700, G06F 1546
Patent
active
041212924
ABSTRACT:
Computerized electro-optical system gages two orthogonal dimensions of a moving hot bar at various peripheral positions. Dual back-light electronic camera heads mounted 90.degree. apart on a scanner generate high-speed bar shadow pulses which represent the bar dimensions. Bar pulses are processed by way of individual camera electronics and a digital computer. CRT and printing terminals, interacting with the computer, indicate and/or record each cold-size bar diameter measurement, a plot of bar profile deviation from aim gage overlaid on full- and half-commercial tolerance references with a data header, and a gaging system histogram.
Each camera head electronics includes camera AGC circuit, a digital type one-axis bidirectional linear sweep, bar pulse edge-detection with an autocorrelator to remove noise and enhance the bar pulse, and a digital accumulator of digital bar size signals and digital bar position-in-field-of-view signals. The digital computer assimilates each bar size and bar position digital signal along with scanner position, bar temperature and other data signals. The computer is programmed to: (a) compensate each bar size signal for field-of-view errors and other optical and electronic nonlinearities, bar temperature and other sources of error; (b) calibrate the gage off-line and automatically recalibrate the gage on-line to correct for drift and slope errors; (c) automatically drive the scanner and implement incremental digital storage of corrected bar size signals for bar profile plotting; (d) perform gaging system histograms; and (e) communicate with the CRT and printing terminals and an exterior control system.
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"By Continuously Measuring the Dimensions of Rods and Bars, Expensive Loss of Stock Can be Avoided", AGA Electronics Div., Product AGA Diameter, Lidingo, Sweden, 1974, 511001, 8 pp.
Clymer John C.
Galanis Tom L.
Hoffner Joel L.
Hostetter, Jr. Richard S.
Jones Duane T.
Bethlehem Steel Corporation
Dower George G.
Iverson John I.
O'Keefe Joseph J.
Wise Edward J.
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