Dept. Bull. 1136, U. S. Dept. of Agriculture PLATE 1 
BALANCES FOR WEIGHING MOISTURE SECTIONS 
A.—This type of balance is usually known as the Harvard trip scale. The one illustrated has a 
maximum capacity of 5,000 grams. The capacity of the scale beam and its rider is 10 grams, reading 
by tenths. The balance, which has agate bearings, is sensitive to 0.1 gram under light loads and 
to 0.5 gram at full load. 
B.—The triple-beam balance illustrated has agate bearings and consequently is sensative to 0.02 
gram or less. The three beams with their respective poises obviate the necessity of a set of loose 
weights. ‘Their capacities are as follows: Central beam and poise, 100 grams; rear, 10 grams; and 
front, 1 gram; making a total capacity of 111 grams for the balance as shown. ‘The addition of an 
auxiliary loose weight, similar to a counterpoise (not shown), increases the reading of the balance 
by 100 grams; this weight must be used only on the 100-gram notch of the central beam. With it, 
the maximum total capacity possible is 201 grams. 
