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My goodness, 1982 standard


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My last job we made a lot of fittings for Jet engines, some of those included very expensive nuts & bolts & washers made out of stainless steel or high nickel alloys.
Since general Nuts & bolts haven't changed in a very long time, our prints were scanned from the mid 1950's, hand drawn and annotated.
They were all 'chart' drawings, so each print for say a nut would have all the dims in variables, and you would go to the chart to get your Major & Minor & pitch & class & distance across flats & corners & thicknesses and all radii.
most of the drawings in 1 particular product line were drawn in the 50's & 60's & 70's.
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I started out on a Commodore PET with a cassette tape drive too. Then the HP9836, IBM XT and many others to follow. We might be getting old. 😮
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That's a hell of a vintage.
I have some parts we are working on here with similarly aged prints.
Modifying symbols like the circled S for "regardless of feature size" that have long since been removed.
Relics!
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The company I work for has been in business since 1865. We occasionally make repair parts from drawings made before 1930. Drawings from the 1930s to the 1960s are fairly commonplace. The older drawings while lacking in the detail we expect today are beautifully crafted from a time when people cared more about the appearance of their work.
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