American Blacksmithing, toolsmiths' and steelworkers' manual . yet cold while the center might betoo hot. HOW TO PATCH A MOULDBOARD When the mouldboard is red hot all over sprinklewith prussiate of potash, and plunge into a barrel ofice or salt water. A mouldboard will stand a goodheat if the heat is even; otherwise it will warp orcrack. Another way to heat a mouldboard: if youhave a boiler, then fill the fire place with wood andheat your mouldboard there. This will give you avery good heat. If it is a shinned mouldboard thepoint must be heated first in the forge, then place itunder the boiler
American Blacksmithing, toolsmiths' and steelworkers' manual . yet cold while the center might betoo hot. HOW TO PATCH A MOULDBOARD When the mouldboard is red hot all over sprinklewith prussiate of potash, and plunge into a barrel ofice or salt water. A mouldboard will stand a goodheat if the heat is even; otherwise it will warp orcrack. Another way to heat a mouldboard: if youhave a boiler, then fill the fire place with wood andheat your mouldboard there. This will give you avery good heat. If it is a shinned mouldboard thepoint must be heated first in the forge, then place itunder the boiler for heating. This must be done to 112 MODERN BLACKSMITHING insure a good heat on the point, which is thicker thanthe mouldboard and therefore would not be hot enoughin the time the other parts get hot. When a mouldboard is worn out on the point a patchcan be put on, if the mouldboard is not too much wornotherwise. Cut a piece of soft center steel to fit overthe part to be repaired. Draw this piece out thinwhere it is to be welded to face of mouldboard. Hold. NO. I.
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