40 HP Case Steam Engine on the Incline at Pawnee

1985 Oklahoma Steam and Gas Engine Show

| September/October 1985

  • At the controls of the 40 HP Case was Chady Atteberry of Blackwell, Oklahoma.
    At the controls of the 40 HP Case was Chady Atteberry of Blackwell, Oklahoma.
  • Shingle mill operation, Baker fan testing,'
    The 1985 Oklahoma Steam and Gas Engine Show in Pawnee, Okla.
  • 110 Case to Rumely Oil Pulls
    Rumely Oil Pull tractors at the 1985 Oklahoma Steam and Gas Engine Show.
  • 40 HP Case on the 50 percent incline
    Helen Case Brigham, great-granddaughter of J. I. Case rides along with Chady Atteberry on the incline.
  • 10 HP vertical boiler engine
    Is there another? The man on the left is Lyman Knapp of Blackwell, Oklahoma. That's his 10 HP vertical boiler, chain-driven Canton Monitor built around 1890 at Canton, Ohio, by Cornelius Aultman Co., later to become part of Aultman & Taylor Co. Lyle Hoffmaster from Bucyrus, Ohio, owns the only other Canton Monitor known to exist. Of course they'd like to hear if there's a third. The engine was fired up at the Pawnee steam show.

  • At the controls of the 40 HP Case was Chady Atteberry of Blackwell, Oklahoma.
  • Shingle mill operation, Baker fan testing,'
  • 110 Case to Rumely Oil Pulls
  • 40 HP Case on the 50 percent incline
  • 10 HP vertical boiler engine

More than 80 years ago in 1902 and at the St. Louis World's Fair in 1904 the J. I. Case Threshing Machine Co. started running its steam engines up an incline to demonstrate the machines' ability.

'Case engines are the only real hill climbers,' proclaimed a banner in a postal card view of such a stunt printed in this magazine in Jan/Feb 1985.

Now the incline demonstration has been revived as a real crowd pleaser at the Oklahoma Steam & Gas Engine Show held the first week end in May in Pawnee, Oklahoma.

At the controls of the 40 HP Case was Chady Atteberry of Blackwell, Oklahoma.



"The late E.C. 'Big Mac' McMillian started climbing the incline at Wichita in 1952 with the same engine I used at Pawnee," said Atteberry. At that time, Big Mac owned it.

"Big Mac was the very best of engineers," Atteberry continued. "He started training me in 1952. I now own the engine, a 40 HP Case No. 31393 built in 1914. Big Mac always referred to this engine as his 'Elgin Watch' 40.