Seen this kind of equipment in operation once. Actual use is to drive a hole and widen it out. Think of three fingers pointed down and spread, stick in willow bit and close.
Drive hole under 60'ish tons of pressure, open and sticks there. Bit of gentle back and forth to push the dirt back and as the Brit's would say: "Bob's your Uncle."
Somewhat similar to planting self rooting grape vines. Prune in the Spring and stick a 18 -24 inch bit of that into good soil (buds up) and the ones under ground will think they're to be roots; one above vines. Issue is (area dependent) they have little resistance to vine diseases. But for replacement plants a cheap solution.
Did this when I had Vineyards here in So. Oregon. 12 foot electric warming pad that had a temp prob. Take old milk bottle flats and fill with potting soil, stick in 'sticks' and turn the heat up to 65 to 70 degrees.** Thing had a temp prob that up/downed as need in the first flat.
Cover with heavy plastic sheeting and you had an instant 'Greenhouse.' Worked a treat.
** 50 degree soil temp
is the minimum if you want things (damned near anything) to grow/bud/etc.
Start at that temp for a week then edge up the temp and you'll get 90+ percent of the things to 'do their thing.' Grape vines are another kind of weed if treated right.