A principal member of the Precisionist art movement, Charles Demuth's work was often concerned with structures, machines, and logos.

[1][2] This interest is reflected in his 1920 work Machinery, which depicts a piece of industrial equipment in his hometown of Lancaster, Pennsylvania.

[3][1] The drawing itself depicts a cyclone separator set in front of a factory wall.

[4] Demuth uses the shadows cast by the centrifuge to add depth to the painting and to emphasize the roundness of the machine.

A singular spot of yellow is used to draw the viewer to the progression of the machine's feeding tubes, which serve a dual purpose; the light metallic tubes tie the drawing together, while at the same time segregating the darker windows from the lighter red of the brick.