I think this was a pulveriser, with access hatch on the front side for replacing belts.

Pulveriser is part of the Lost Collective Bathurst Gasworks series.

Unframed and Framed Prints. Both options consist of a Giclee fine art print with a white border, printed using Epson UltraChrome HD Ink onto Canson Infinity Rag Photographique 310 GSM, a 100% cotton, museum grade, white fine art and photo paper. Framing comes in a choice of white, black or raw shadow box frames.

Glass prints. Face mounted glass print is the premium option. The image runs all the way to the edge with no border whatsoever. The ultra clear glass really makes the image 'pop'. These prints also feature concealed, easy to install mounts, giving the image the appearance of floating off the wall.