Re: 491

Do you mean pictures of a Master Mechanic's front end?

If so, I found this on Google. Here is a comprehensive text on the subject.



The idea was to force the cinders to make several hard corners under the table plate and damper plate, counting on their momentum to break them up against the back of the diaphragm plate, the bottom of the smokebox, the back of the damper plate, and the back of the smokebox front, then reach the screen at an acute angle so it can rub them down until they are small enough to fit through the screen and land in some foamer's hair.

The damper plate makes a choke point accelerating the smoke there so the cinders don't pile up on the smokebox bottom. That keeps any cinders that bounce off the screen from just laying on the bottom, but keeps them being thrown against the screen until finally worn down. This results in the Master Mechanics front end also being rather optimistically called a "self cleaning" front end.