Don't go away, their's more. Here are a few short, reader submitted articles, from early 60's Popular Science. The first one is a different and interesting take on the common sanding block. This one allows you to not just sand edges, but also different curved, and circular work. The resolution is not that great, but usable if you expand for best view.
I have uploaded a number of articles before on speed reducers for bandsaws and other equipment. Here are a couple more. The first one is an easy one for the bandsaw. It uses the original pulleys and adds a relatively simple jack shaft.
You don't often see lathe speed reduced this low (12 rpm for slowest speed) but the author, Manly Banister, makes a good argument for these low speeds in special work. Interesting read.
For those following the sawmill build, stay tuned , hopefully get back in the shop tomorrow.