"Disk- and Drum-sander. a a, frame of machine; b, vertical disk coated with sand; c, horizontal revolving drum coated with sand; d, work-table for presenting work to disk; e, power connection." -Whitney, 1911

Disk and Drum Sander

"Disk- and Drum-sander. a a, frame of machine; b, vertical disk coated with sand; c, horizontal revolving…