Early 1900's attachments.
Hi CoffeeCanMan:
I have stacks of papers on the early electrics, but the granddaddy of them all was a 'portable' called the Federal Electric. The picture shows the tools to this beast. Looks like the 'library' tool was a common part of the equipment, another company was the Thurmam of Saint Louis, 1899. I have the entire instruction books for both, but they are too many pages to post here.
Looks like Hoover was simply following the trend. And yes, Hoover did use sand-casting on the early models.
I'll see what other goodies I can find in my boxes of paperwork.
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