Misblow

A misblow at any point would have meant a loss of thousands of dollars; but such was the skill of the accomplished cleavers that not once did this occur.

"Can he have fainted from loss of blood?" said Bluff, still having in mind a picture of a woodsman who had severed an artery by a misblow of his ax.

Now, therefore, holding my breath in dread lest I should rouse the castle with a misblow, I began to swing and strike each blow heavier and more confident than the last.

It has an eye large enough to admit a small sledge handle, and the handle should be made of good hickory with some surplus stock near the eye, as it is liable to get many bruises from careless handling and misblows.

Also we changed our method of blowing to eliminate misblows.

Soon it was discovered that one of the governing factors was the temperature of the pin prior to blowing. Above 220°F, the thermoplastic stuc to the pin and resulted in a misblow.

Misblows, caused by clogged vents or by improper closure of pattern halves due to sand grains on the pattern parting lines, result in a high percentage of scrapped molds.

These requirements imply the use of a sand mixture having a sufficiently long bench life without tendency to crusting in order to avoid misblowing, machine downtime and the cleaning out of the blowhead and blowing holes.