— "toxonix"'s post about building a wet grinder got me thinking about the old pedal powered grinding stones. A friend of mine has one in his living room as "decoration". It has a cast Iron seat on it, kind of like an old tractor seat, then pedals to turn the wheel.

 — Antique Pedal Powered Industrial Grinder. "Up for sale today we have a very old Industrial Pedal Powered Grinder made by the Luther Grinder MFG Co. Milwaukee. It is a Hummer No.271 Model G. It measures 41" tall 27" deep and 17" wide. It is in good working condition.

Someone using a pedal-powered grinder, like the one pictured below, could operate the device without having to stop every few seconds. Pedal power also allowed people to use the larger muscles in their thighs more effectively.

Our GrainMaker ® Model No. 99 is a wonderful all purpose mill for the individual or a family. It is fully adjustable to allow for various types of grinds, can be hand cranked, motorized or used with a geared bicycle.

 — The ingenious design, primarily for agricultural use, consists of a very small flywheel attached to a standard bicycle, which permits its use as a pedal-powered machine that can be utilized to power numerous small-scale mechanical devices such as grain threshers, grinders, winnowers, peanut shellers, corn shellers, circular saws, wood …

 — Anybody recognize this old pedal operated grind stone? Found at a local flea market and I'm setting it up for use at the local Boy Scout camp. the kids should get a kick out of pumping this thing, give them an appreciation of just how much work a …

Perhaps one of the most well recognized of the commercial grade foot powered machines with its distinctive "tractor style" seat is the Velocipede #2 scroll saw. Barnes introduced this machine very early in their product line (about 1876) and …

Grinders and grinding machines use an abrasive that is bonded to a wheel, belt or disc to remove material and improve surface finish. Devices can be pneumatically driven or powered by a combustion engine or electric motor.

 — I'm afraid that if it's in an antique shoppe, it may already be lost to us. Your best bet is to gird your loins, keep a spray can of salesman-be-gone in your hand, and see what they are asking for it. I'd go $50-$60 for a good, used grinding wheel, assuming that I could build any missing parts.

 — A pedal-power grinding mill has been designed and constructed. The machine is made of a chain drive mechanism. This mechanism is made up of sprocket, gear, pedal, chain, bearings, grinding...