12 
Transactions Texas Academy of Science. 
[58] 
machinery is operated by a shaft 240 feet long, varying in size from three 
and fifteen-sixteenths to 'two and three-sixteenths inches in diameter. 
The Clemens dam (Fig. 3) has a length over all of 220 feet and a 
length between bulkheads of 130 feet. Its total height is fourteen feet, 
width of base eighteen feet, and has its foundation on a tough blue clay. 
The cross-section in general represents a trapezoid. The crest is flat, 
four feet wide, the up-stream face being vertical and the lower or down- 
stream face being formed of a series of steps whose height or rise is 
about nineteen inches, and whose tread varies from eighteen to twenty- 
four inches. The dam was constructed of limestone obtained five miles 
from New Braunfels. The stone was laid in the best Portland cement. 
It was built in 1882, and the plant cost about $100,000. There are thrfee 
waste weirs, six feet deep and five and one-third feet wide. The head on 
the wheels is nine feet. The power at the north end is generated by two 
Stillwell-Bierce Victor upright turbines, thirty-five and forty-four inches 
in diameter. The shafts from the turbines are twenty-one feet long, five 
and fifteen-sixteenths diameter; one twenty-four feet long, four and 
three-eighths diameter ; and another twenty feet long, six and fifteeh- 
sixteenths inches in diameter. These transmit the power to a huge pulley 
fourteen feet in diameter, whose center is twenty-three and one-half feet 
above the crest of the dam. The power is transmitted from this pulley by 
a seven-eighths wire rope. ' 
Across the river, a distance of 650 feet, is the Dittlinger flour mill, 
whose capacity is 1500 barrels of flour, 1200 barrels of corn meal, and 
300 barrels of rye flour per week. It is estimated that tlie mill utilizes 
100-horse power continuously. 
At the south end of the Clemens dam a power plant, consisting of one 
36-inch Stillwell-Bierce Victor cylinder gate turbine working under a 
head of eight feet. It is estimated that it develops forty-eight horse pow- 
ers, thirty of which are utilized in pumping water into the standpipe for 
the city water supply. The. bottom of the standpipe is ninety-five feet 
above the water surface of lake above dam. The standpipe is fifty-seven 
feet high and twenty-five feet in diameter. The pumps are run twenty- 
four hours per day. The turbine is usually operated under a five-eighths 
opening. 
Adolph Ditmer has a plant on the Guadalupe river, five miles below 
New Braunfels. There is a natural dam of soft calcareous material at 
this point, with a fall of five feet. The plant consists of a 42-inch Risdon 
turbine and a duplex Worthington pump of 14-inch piston diameter and 
10-J-inch stroke. The intake pipe is twelve inches in diameter and about 
eight feet longy the discharge pipe ten inches in diameter and 750 feet 
long. The lift is forty-two feet, and it is intended to sell the surplus 
water pumped to neighbors for irrigation purposes. 
Herman Ditmer has a similar plant one mile farther down the river. 
