tritek61 (Jan 18, 2022)
Welding and grinding wires. Westinghouse Electric Corporation. 1956.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...s_fullsize.jpg
old_toolmaker (Jan 16, 2022)
Links to some of my plans:
https://www.homemadetools.net/forum/...965#post105972 OFF-SET TAILSTOCK CENTER PLANS
http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION
bruce.desertrat (Jan 17, 2022)
As to when women and men had clear identity, the pic label is confusing.
That looks a lot more like a steam turbine (ie 'low pressure') then any motor armature, no?
...we'll learn more by wandering than searching...
cmarlow (Jan 16, 2022)
I agree it's the low pressure section of a multi-stage (H.P.(I.P.?)L.P.) steam turbine of it era, in the 1960's/70's 500 MW sets I worked on that's smaller than the I.P. section. The pressure/temperature differences would be interesting to know, ours were HP inlet 165 bar / 541°C , IP inlet 40 bar / 541°C and 3 x LP in parallel acting as 1 turbine with residual pressure from IP outlet entering and below atmospheric pressure (vacuum) at the condensed exit. The LP sections final blade set were large enough in diameter that the root was travelling below the speed of sound and the tips above. Failure to 'bar' (continuing to turn the shaft using an electric motor via a reduction gearbox) would lead to differential cooling and a bent turbine shaft, we even had a 'ride the tool post' lathe big enough to machine the LP sections.
Toolmaker51 (Jan 17, 2022)
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