KNIFE WIPER
The knife wiper is a very important part of the Linotype. Its function is to wipe the burrs or slug trimmings from the face of the parallel knives after a slug is ejected. If the knife wiper is not working, the face of the line of type will have an accumulation of shavings from the previous line on it.
The knife wiper in use on all machines of very recent manufacture is operated by a small roller, fastened to a bracket on the first elevator slide, which comes in contact with a lever connected to the knife wiper bar. When the elevator goes from normal to the lower, or casting, position, the knife wiper bar is forced upward. On the upper end of the knife wiper bar is a small brass wiper which is forced upward with the bar. This wiper rubs against the trimming knives, cleaning them of the metal shavings which may have lodged from the previous slug trimmed.
There are no adjustments on this type of wiper, except to have the brass lightly touching the knives.