410 S. 8th St.,Holland, Michigan 49423
Am enclosing a picture of my half scale Five H.P. Steam Traction Engine. It's a free lance resembling a Port Huron simple cylinder with the exception of rear wheels. This engine has all the appearance of a factory built engine with all brackets bolted on boiler such as counter shaft, rear wheels axle shafts and inter-medium gear and engine bed bearings.
Now for those contemplating building a half size engine, this makes a nice size to build, so am enclosing size of boiler here below, as this makes a very easy steaming engine, never lifts the water or blows over, no matter how hard you pull it, which is a great advantage, which waves water and fuel. Boiler size diameter 16 in., length of boiler 91 inches, smoke box 12 inches, length of flues 48% in. by 1% in diameter. 19 flues in number, flue sheet 3/8 in. thick in fire box, 5/16 in. in smoke box, rear boiler head 5/16 in. thick, throat sheet 3/8 in. thick, fire door size 6 x 8 in. dome size 8 x 9 in. boiler in. thick, crown sheet 5/16 in. thick with a 2 in. drop at the rear end of fire box, with 18 stay bolts 5/8 in. size. All stay bolts are threaded, riveted, light float weld for seepage, 4 5/8 size bolts in dome, 6 rows of 6 stay bolts on each side of fire box, 6 in row, or 72 stay bolts in all, with 9 stays in throat sheet, and the same in rear end of boiler. 1 in of water clearance on fire box sides and 1 in. clearance on both ends. Grate size in fire box 25 in by 13 in. or 331 sq. in. of heating surface or 7 sq. in of grate service to every gallon of water as boiler holds 45 gals, of water, with glass of water. Cylinder size 4 in. bore by 5 in. stroke.
For size of wheels, rear 39 x 10% in., front wheels 26 x 6 in. axle (front) VA in. rear axle shaft in 2 in. of diameter. Boiler Hydrostated tested at 240 lbs. sq. in. cold water.
Last, but not least, to the builders of Model Traction Steam engines, be sure and use all new material, and a good grade of steel boiler plate for boiler.
I started operating steam engines and threshers in the year 1913, so now if I blew my whistle too much, just let the steam go down.
In regard to your Iron Men Album, we enjoy it very much and think it is one of the best.