Here's a unique US Burke Mill combined with a Burgmaster turret drill. The ad claims it converts in seconds. I question how many people want to rotate their turret mill back and forth for a turret drill. I guess this setup didn't go over well. This was done about 1970, which was about the time Burgmaster, US-Burke, and Powermatic were all under the umbrella of Houdaille Industries.

Ever seen a saw blade on a vertical boring mill? George Richards and Co of Broadheath, Altrincham Boring Mill,1932. I would say the blade is at least a meter. I wouldn't want that one binding

Girth Gear and Rider Ring for Sugar Mill made by Falk Corporation in Wisconsin. This was purchased by Colorado Fuel and Iron and used by Union Sugar Division of Consolidated Foods Corporation. Original Falk caption reads, "This is the first diffuser gear of this size to be cut at Falk. The process used to cut this gear was also new. It consisted of single position indexing and form milling cutters to produce the involute profile on the teeth.

At Falk Corporation. The machine and recorder are manufactured by Illinois Toolworks of Chicago. The machine is capable of checking the accuracy of involute profiles on pinions or gears up to 36 inch outside diameter. Pinion description: 20 teeth, 1 1/2 DP, 24 inch face, 5 degree helix angle, single helical, full depth mill type teeth, right hand helix.

slotter sent in from @cgbarrow "our 14" Ormerod, made in Hebden Bridge, West Yorkshire (about 4 miles from where I live). I was using it yesterday to cut keyways in piston valve heads for steam locomotives."

Model "NH" Plano Surface Grinder by The Churchill Machine Tool Co. of Manchester, England. The NH uses a periphery wheel mounted on a horizontal spindle. A vertical spindle attachment carrying a ring or segmental wheel is optional. These were made with table widths up to 60 inches and bed lengths up to 14 feet.

The machine shop. Mechanic Arts High School in Boston, ca 1895. There's a lot of old nice equipment in there.

Workman at Shildon wagon works operating slotting machine. 16 Sept 1952.