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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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only slightly OT- how common were these promotional specialty slide rules
I've seen plenty of paper/cardboard calculators for all sorts of things, but
this weekend I ran across a "real" slide rule put out by a hydraulics company with a couple of scales added for calculating hydraulic/pneumatic stuff it's pictured here on ebay --- http://cgi.ebay.com/ws/eBayISAPI.dll...m=300289178419 What I'm wondering, since this is the first of this style that I've seen, is how common was this? Most folks I know who were engineers in the 50s had a Pickett or K&E slide rule, so I'm kind of surprised that anyone would actually do much with this, but maybe it was aimed at non-engineers? -- Bill www.wbnoble.com |
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