The Automatic Feed Attachment (Part No. 26) drove from a V groove on the end of the headstock spindle to a large-diameter pulley on the end of the leadscrew.
The ratio was such that a single revolution of the spindle produced a carriage moment of 1/64" - which would have been rather too fast for comfort.
The dangerous slot in the combination faceplate/catchplate was designed to hold the end of a drive dog - as well as grab the operator's loose clothing.

The milling attachment (Part No. 24) had a useful, built-in vice and attached to the cross slide with a single bolt.

The Jig Saw Attachment (Part No. 22) had a stroke of 1.5 inches and could cut wood up to 2-inches thick. The table was 7-inches in diameter and could be tilted through 5 degrees.