Hand-built trenching machine. The machine can dig a trench 8 feet deep and 10 inches wide and, depending on the soil, could advance itself at a rate of 15 to 20 feet per hour. The trencher was restored to working condition in 2003 and is now housed at the Pioneer Acres Museum in Irricana, Alberta.
WWI mechanical trench-digging machine - GIF
V-trenching excavator - GIF
Belt-driven tractor with giant trenching wheel - GIF