Workpan

These racks can be carried about and used as workpans or, because of the brackets on their sides, can be stacked one in the other and so used as bins.

Source: wiktionary

To direct each workpan to its correct position, the conveyer pans have been designed with holes at both ends into which pins are inserted.

Source: wiktionary

An automatic timer, which initiates the plant cycle, opens the charge and discharge doors of the hardening furnace and raises the dipping gear of the oil quench with its loaded workpan to conveyor level.

Source: wiktionary

Each version has a 12 x 20 inch bolster mounted in a 29 x 22 inch workpan, 14 inches deep. High-speed filling or draining of the 43 gallon workpan from the 60 gallon reservoir takes only 30 seconds through built-in plumbing.

Source: wiktionary