28 



A. DAIGGER & COMPANY, CHICAGO, U. S. A. 



1183 



1183 TORSION GRAVITY BAL- 

 ANCE. Sensitiveness, 2 milli- 

 grams; sensitiveness, 1/32 grain. 

 Recording beams, upper, .01 by 

 .0001; lower, 1.40 to .70 by .01. 

 Tare beam, bottle, 100 C. C; 

 case, metal and ground glass. Ar- 

 rest, measurements, 12^ by 6 by 

 9^4 inches. Price with one bot- 

 tle $50.00 



When ordering extra bottles give 

 serial number of balance. 



This balance is used for the ready 

 determination of specific gravity of 

 liquids, the result being obtained di- 

 rect from the reading of the beam 

 without calculation or the use of loose 

 weights. The range is from .7000 to 

 1.4000. 



CELERITAS TRIPLE BEAM BALANCE 



1185 ,JI 



1187 



1185 



BALANCE, SPECIFIC GRAVITY. Jolly Spiral Spring. Mirror Scale. 

 This balance is a decided improvement over the general style of appa- 

 ratus of this kind, being made of metal throughout and handsomely 

 finished. It consists of an upright, 3 feet high, supported by a tripod 

 base fitted with leveling screws. The stage, scale and hook are clamped 

 to the upright, all three being adjustable separately. The improved 

 mirror scale is graduated in millimeters. The pans are of aluminum 

 suspended on very sensitive springs. Two springs, a high and low ten- 

 sion, are included with each balance $25.00 



Used for determining specific gravity of minerals, etc., and in laboratories of 

 rubber factories. 



1187 IMPROVED CELERITAS TRIPLE BEAM LABORATORY BALANCE. 



This balance is one of the most popular of our specialties. It has a 

 capacity of 111 grams, a sensibility of 0.01 gram, and reads directly on 

 the aluminum beam to 0.01 gram. The beam is engine divided and is 

 tested and adjusted at each division. The two lower weights are sup- 

 plied with spring clips to insure accurate setting. The weights do not 

 interfere, and they are attached to the beam so that they cannot be 

 lost. A milled head lifts the center knife edge from its bearing when 

 not in use. The stand is neatly enameled and is supplied with a leveling 

 screw, spirit level, and swinging support for specific gravity work. The 

 pan is movable and its hanger has an extra hook for specific gravity $17.50 



