Calculating - Bri Cal
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see the Money page
 
 
 
 
 
BriCal
Model    
Maker   British Calculators Ltd
Origin   England
Date   Probably 1910 to 1920
Serial   A 913
 
Patented by H. and M. Dickinson and manufactured between the beginning of the twentieth century and the Great War by The British Calculators Ltd.. The lettering reads Bri-Cal Adding Machines.
 
The disc is operated by inserting a stylus in the appropriate slot and moving clockwise. Addition is immediate so the amount can be entered in any order. The result is displayed in four small windows.
 
The pence selector is in halfpenny steps.
 
To clear the total to zero, the stylus is inserted in the red slot of the outermost ring and pulled as far as it will go, again clockwise. This is repeated for each ring in turn, moving towards the centre.
 
Originally there would have been a pair of styli but these have been lost.
 
The Bri-Cal, which has a felt pad on the back, should be placed on a desk and held with the left hand while the stylus is worked with the right. The machine is not suitable for holding in the hand.
 
The circular design makes operation easy for right handed people but it is difficult if you are left handed. At the start of the twentieth century being left handed was considered abnormal.
 
There is a felt-lined wooden box with the Bri-Cal. This is currently awaiting repair.
     
     
     
     
     
     
     
     
     
     
     
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