Harpur/Allen Mogul Smokebox Configuration

This forum is dedicated to the Live Steam Hobbyist Community.

Moderators: cbrew, Harold_V

Post Reply
User avatar
dnevil
Posts: 373
Joined: Fri Aug 03, 2012 10:19 am
Location: Springtown, Texas
Contact:

Harpur/Allen Mogul Smokebox Configuration

Post by dnevil »

A catalog for Harpur Locomotive Works was recently auctioned on eBay. Several pages of the catalog were posted, and this one caught my eye. It shows a split smokebox containing superheater and feedwater heater coils.
Harpur Mogul Split Smokebox Configuration
Harpur Mogul Split Smokebox Configuration
More pages of the catalog can be see here.

http://ibls.org/mediawiki/index.php?tit ... llen_Mogul
Daris Nevil
IBLS Secretary
North American Region
http://www.ibls.org
jessebanning
Posts: 666
Joined: Mon Jan 12, 2009 11:45 pm
Location: Port Angeles, WA
Contact:

Re: Harpur/Allen Mogul Smokebox Configuration

Post by jessebanning »

I have drawings for the super heater. Pretty slick.
www.banninglocomotiveworks.com

www.littleengines.com
User avatar
Bill Shields
Posts: 10459
Joined: Fri Dec 21, 2007 4:57 am
Location: 39.367, -75.765
Contact:

Re: Harpur/Allen Mogul Smokebox Configuration

Post by Bill Shields »

slick but not very useful as a feedwater heater considering that it is not actually in the flow of hot air..

yes it will add temperature to the incoming water but...is it worth the nuisance?
Too many things going on to bother listing them.
southwestern737
Posts: 168
Joined: Sun Nov 12, 2006 8:45 am
Location: Magnolia, TX

Re: Harpur/Allen Mogul Smokebox Configuration

Post by southwestern737 »

No nuisance at all, mine has been trouble free for years.
Steve Alley
Posts: 216
Joined: Thu Dec 20, 2012 12:30 am

Re: Harpur/Allen Mogul Smokebox Configuration

Post by Steve Alley »

I have talk to a lot of owners and most say it works. I think it may change the temp a bit. but not a lot. I know one thing. On the consolidation my friend owns, witch was Gene's engine. He has change out the ball in the water pump twice in three or four year. He is using the nylon one and I told him to change to the SS one. It deforms from the heat that the tubing backs up to it. Yes its plump to the front sheet of the boiler. Yes a coil in there too. Steve Alley
User avatar
Bill Shields
Posts: 10459
Joined: Fri Dec 21, 2007 4:57 am
Location: 39.367, -75.765
Contact:

Re: Harpur/Allen Mogul Smokebox Configuration

Post by Bill Shields »

soft balls are generally not a good idea unless you have a broad, flat seat at a 45 degree angle....even then they are short lived.
Too many things going on to bother listing them.
Post Reply