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The frog plate

JaredV

Senior Member
Joined
Jan 22, 2022
Messages
705
Location
SW WA
I've wondered that. It's the same on a moldboard plow. Waiting patiently.
 

John C.

Senior Member
Joined
Jun 11, 2007
Messages
13,194
Location
Northwest
Occupation
Machinery & Equipment Appraiser
Some people call it a frog and some a mold board. When I worked on the Weyerhaeuser railroad we had a tool for putting cars back on the rails after a derailment that was called a frog. I don't know where the name came from. I learned it from working with older the generation at the time.
 

AMBMike

Senior Member
Joined
Jun 12, 2009
Messages
324
Location
Southeast KS
Occupation
Cat herder.
Probably a regional thing but what I'm used to referring to as the frog is the heavy piece at the bottom of the moldboard that the cutting edges bolt to.
If the frog becomes your cutting edge you may want to train the operator to keep an eye on GET wear...

No clue why it's called the frog though. Interested to hear.
 

chidog

Senior Member
Joined
Jun 21, 2021
Messages
1,509
Location
wa
Its the very lower area under the blade that supports the cutting edge, it looks like webbed feet of a frog.
It is the same area that will fill with dirt when back blading that sort of lifts the blade, and helps cause less wear than pushing forward. :D
Mold board? Isn't that the whole of the face of the blade?
 

shaggs

Well-Known Member
Joined
Oct 31, 2013
Messages
51
Location
victoria australia
Occupation
grader operator/leading hand
done a bit of research,the frog is a part of a horses hoof , located on the underside,which should touch the ground if the horse is standing on soft footing.So you could say on a machine its the part that holds the cutting edge [ hoof on a horse].definition,its a thick metal base,shaped like a block or triangle .attached to the mold board[welded]. Function,it gives the mold board support. giddyup
 

chidog

Senior Member
Joined
Jun 21, 2021
Messages
1,509
Location
wa
Yeah proves one use of nomenclature for one application may not be the same on some other application. So ya can't say its this on this because its that on that. :D
 

DDoug

Formerly digger doug
Joined
Nov 2, 2011
Messages
2,755
Location
NW Pennsylvania
Occupation
Thrash-A-Matic designer
Yeah proves one use of nomenclature for one application may not be the same on some other application. So ya can't say its this on this because its that on that. :D
"Bulldozer" in a RR forge shop is a very different machine.
 
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