President, National Threshers Assn.
I AM GIVING YOU THE results of the economy tests made at
Montpelier, Ohio, at the threshers reunion last June. They do not
show up as good as the average of those made at Winnipeg, Manitoba
in 1913 and a few years earlier, or the tests of some Baker uniflow
engines at Ohio State University. The Baker engines were developing
& 1 horse-power hour on 20 lbs. of water with their front end
super heater. However, the White steamer auto engine developed an
horse-power hour on slightly less than 12 pounds of water, with
high pressure superheated steam in their cross-compound engine.
At Montpelier we used a good grade of soft coal and at Winnipeg
they used hard coal, that had about 20% more heating value and no
sooting of tubes and firebox. It must be remembered that all
engines at Winnipeg were new ones, and operated by the best
engineers the manufacturer could find as competition was very keen.
Our contest was a friendly one and we plan to make a number of
tests at the reunion this June 28, 29 and 30, 1956.
Statistics show the 110 hp. Case (12′ by 12′ cyl.) at
Winnipeg in 1912 developed 144.22 hp. with 160 lbs. working
pressure, and 135.2 hp. in 1913 with 147 lbs. W. P. on the one-half
hour maximum run. That same year the big 35-115 hp. (12′ by
14′ cyl.) Sawyer-Massey engine developed 153.8 hp. with 158
lbs. average steam pressure.
It will be noted that the big 100 hp. Case was the gold medal
winner at Winnipeg for using the least fuel and water per hp. hour.
I am sure this engine was using the geared pump to feed the boiler
which saves 6 to 8% of the fuel. No doubt the firebox was equipped
with a brick arch also.
A close runner-up was a 25-80 Case Woolf compound in 1913 and I
doubt if the Case Company had their geared pump on this size at
this time.
I believe the information will be interesting to readers of the
ALBUM, but if it is too long you may cut some of it.
STEAM TRACTION ENGINE ECONOMY TESTS | AT MONTPELIER, | OHIO, JUNE 25, 1955 | |||
MAKE HP. | HP. | Coal used per | Lbs. water eva. | Lbs. of Water Aver. Steam | |
RATING | LOAD | Hp. Hour | per lb. coal | per Hp. hour | Pressure |
Advance 16 | 40 | 5.65 | 7.08 | 40.00 lbs. | 145 |
Port Huron 24-75 | 50 | 3.76 | 8.08 | 30.40 | 170 |
Compound | |||||
Port Huron 24-75 | 55 | 6.14 | 6.00 | 36.40 | 170 |
simple | |||||
J. I. Case 22-65 | 65 | 3.70 | 8.73 | 32.20 | 170 |
Jumbo 20-65 | 50 | 5.02 | 6.34 | 33.00 | 145 |
RESULTS OF THE 1910 | CONTESTS | AT WINNIPEG, | MANITOBA. ALL | MAXIMUM ONE HOUR | RUNS |
Avery undermt. 40 | 124.4 | 8.31 | 5.32 | 44.27 | 185 |
Avery undermt. 20 | 96.6 | 4.92 | 6.28 | 30.96 | 170 |
J. I. Case 25-75 | 94.3 | 4.07 | 7.46 | 30.39 | 140 |
J. I. Case 110 | 129. | 4.31 | 8.17 | 35.25 | 160 |
Rumely 40 | 135. | 7.57 | 6.60 | 54.93 | |
RESULTS OF THE 1912 | CONTESTS | AT WINNIPEG, | MANITOBA. ALL | ONE HOUR ECONOMY | RUNS |
Sawyer-Massey 25-76 | 78.72 | 4.22 | 6.97 | 28.08 | 163 |
compound | |||||
J. I. Case 25-80 | 77.23 | 3.78 | 7.64 | 28.95 | 141 |
RESULTS OF THE 1913 | CONTESTS | AT WINNIPEG | , MANITOBA. ALL | ONE HOUR ECONOMY | RUNS |
J. I. Case 12-40 | 39.7 | 3.42 | 9.02 | 30.91 | 152 |
J. I. Case 25-80 | 80.1 | 3.27 | 8.08 | 26.45 | 147 |
compound | |||||
J. I. Case 110 | 110.5 | 2.65 | 9.54 | 26.23 | 167 |
Sawyer Massey 27-80 | 57.9 | 3.60 | 7.68 | 27.72 | 172 |
compound | |||||
Sawyer Massey 25-76 | 55.3 | 4.12 | 7.63 | 31.64 | 163 |
Sawyer Massey 35,115 | 114.9 | 4.18 | 7.45 | 31.38 | 162 |
