All our 120V stuff at Ford was fitted with a weird twist-lock pin-and-sleeve plug that fitted into matching weird receptacles.
I know that whacking off the plug of a new tool to install an oddball plug sounded dumb, but we stopped 'losing' electric drills and other small power hand tools almost immediately after the policy was adopted.
We did the same thing when I was a plant engineer at Beech Aircraft Corp. in Wichita, except that we used crowsfoot receptacles. The old-school management thought it would keep the workers from stealing power tools, but most guys knowledgable enough to use a power tool knew how to replace the plugs! We finally did a mass changer-over to standard NEMA 120V grounded outlets around 1977, which entailed replacing thousands of the old crowfoot outlets throughout numerous factory buildings.
