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Cincinnati Milling Machines
Early-Model Dial Types
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   2MI, 2ML 203, 205, 307 & 410   8" x 18" Tool & Die Miller   Cincinnati Contourmaster

V-belt drive 1930s -- the basic arrangement remain unchanged into the 1980s

Silent-chain drive. A popular fitting from the 1920s and 1930s. The chain was automatically lubricated. Although giving a slip-free drive it was relatively harsh and, of course, unforgiving in the event of a dig-in other accident.

The later more robust twin-bolt overarm brace

Table and saddle ways - and the table feed-screw end bearings - were lubricated by a one-shot pressure system, driven by an operator-actuated pump, mounted on the front left of the saddle on horizontal millers and to the right on vertical.

The silver tube in front of the knee elevation screw was used to return coolant to the base-mounted sump

Early spindle-speed dial

The shorter mid-1940s onwards sockets and pull-out-to-turn micrometer dials for the side-mounted crank handles