Fast-food shakes are made using one of two methods: automatic milkshake machines and soft serve ice cream mixed with flavored syrups.

Some fast-food restaurants use "thick milkshake" machines, which are single-flavor machines with a (12 liter) stainless steel tank.

A milkshake machine then starts spurting milkshake all over the customers, and more and more people enter the "yard".

The Dinosaurs, seven of them today, all wearing blaze orange over flannel shirts, sat in their usual place, the far left barstools near the milkshake machine.

From a projector that sat on a counter next to a milkshake machine.

It's the kind of place where phrases like "If this country would just" mingle with the clink of china and the whirring of the milkshake machine.

"If we had heard about it, he would be back selling milkshake machines."

Last week, as the sandwich was being introduced in stores, students continued to study the inner workings of milkshake machines and to ponder theoretical production problems.

In 1961, Ray Kroc (the supplier of their multi-mixer milkshake machines) purchased the company from the brothers for $2.7 million and a 1.9% royalty.

When asked to repair the milkshake machine, he gets inside it and happily emerges covered with pink glop.