Farmwithjunk
Super Member
Share (also called point) is the horizontal cutting edge. Shin is the vertical cutting edge. Landslide is the side that runs against the furrow wall to keep the plow running straight. Some landslides had "wear plates" that were replaceable. The moldboard is the rounded "wing" if you will that rolls the dirt. Moldbard extentions do just that. The "disc" you refered to is called a "coulter" . There's a piece under all of that called the "frog". That holds it all together, and secures the plow bottom to the shank. Also, there are other parts that were optional called "Jointers", and cover boards (aka "trash boards") On most plows there was a "tail wheel" that took some pressure off the landslides to keep the plow running straight.
Moldboards were available as slatted, solid, and a rarity known as a "Scotch bottom". (those were primarily for turning sod)
Some older plows had the shin made into the moldboard. Those were replaced along in the 1950's with "throw-away" bottoms where the shin could be replaced without sacrificing a good moldboard.
Plows aren't used much in farming anymore, but are fast reaching new highs in value as collectors items, or for gardens and "plow days". Bigger (More than 3 bottoms) plows are about worthless anymore though.
Clear as mud, huh?
Moldboards were available as slatted, solid, and a rarity known as a "Scotch bottom". (those were primarily for turning sod)
Some older plows had the shin made into the moldboard. Those were replaced along in the 1950's with "throw-away" bottoms where the shin could be replaced without sacrificing a good moldboard.
Plows aren't used much in farming anymore, but are fast reaching new highs in value as collectors items, or for gardens and "plow days". Bigger (More than 3 bottoms) plows are about worthless anymore though.
Clear as mud, huh?