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CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



No. 566. 



No. 570. 



5(56. BALANCE, Family Scale, Standard, with slanting white enameled dial; weighs 24 Ibs. by 1 oz. 

 divisions; with square sheet steel platform and tin scoop $2.50 



568. BALANCE, Family Scale, Metric. Same as No. 566, but for weighing 10 kilos by 50 gram 

 divisions 3.00 



570. BALANCE, Hand, improved design. Manufactured by us to replace the cheaply made European 

 balances. The supporting stirrup is shaped at the top to form a graduated index plate, enabling 

 the observer to tell more accurately when the beam is level; it also limits the motion of the 

 beam, preventing the weights from being scattered by a sudden swing. Constructed of brass 

 with 8 inch beam and 3 inch horn pans supported by cords. Weighs accurately to 1 centigram 

 3.00 



572. BALANCE, Laboratory, designed for those desiring a more sensitive and convenient form of 

 balance than the Harvard Trip scale. 



Capacity, 2 kilos. 



Sensibility. Loads up to 2 kilos can be readily weighed within 0.05 grams. Sensibility on light 



loads is much greater. 

 Beam, open construction. 



divisions, each division 

 Damping Device, positive 



A rider upon beam indicates all amounts up to 10 grams by 1/10 gram 

 being 2.54 mm long, making small weights unnecessary. 



in action, brings balance quickly to rest. 



Bearings, of high grade steel, carefully polished 

 and adjusted. 



Hangers of improved design, eliminating fric- 

 tion and wear. 



Pan Arrest. The base serves as an arrest, en- 

 abling operator to move balance safely while 

 loaded. 



Leveling Screws are supplied, insuring greater 

 sensitiveness. 



Plumb Bob, not shown in illustration, makes 

 accurate leveling a simple matter. 



Adjusting Screw protected within open work of 

 beam. 



Dimensions. Length of beam between knife 

 edges, 32 cm. Length of graduated part, 

 25.4 cm. 



Pans, of aluminum 14 cm in diameter. Height 

 of balance, 45 cm. Width of bows, 15 cm; 

 height of bows, 35 cm. Pans, bows and 

 stirrups accurately balanced, making them 

 interchangeable. 



An Adjustable Shelf for specific gravity work 

 is included. 



No. 572. 



Price 



15.00 



