The Gentleman Janitor boilers were made in Scranton and are no longer made. There is virtually no information on line about them except items posted here by members who have them. The design is very similar to a EFM or Vanwert in the way the coal is fed. It is a round underfed burner that feeds coal from the bottom and bushes the ashes off the edge all the way around as it burns.
I have some pics posted here: http://nepacrossroads.com/viewtopic.php ... nitor#9466
I have two units that I removed from local homes that decided to stop burning coal. I plan to get them in servicable shape this winter.
I know of at least one member (Mike) who is currently using one to heat his home and produce hot water. John_in_NC actually worked for them back in the 50's. So after a long winded response the answer to your question is, there really is no information available that I have found online, except this forum.
Hope that sheds a little light.