EXAMPLES 741 



(8) The ram of a differential accumulator is 4 inches diameter, and the 

 surrounding bush is J inch thick. Determine the accumulator pressure 

 if the supported weight is 10 tons, neglecting the effect of friction. 



Answer. 3,168 Ibs. per square inch. 



(9) The accumulator of the preceding question feeds a riveter, whose 

 ram, at the end of its working stroke, suffers a retardation of 5 feet per 

 second per second. The riveter ram is 5 inches diameter. Determine 

 the pressure on the rivet head at the end of the stroke. 



Answer. 32*1 tons. 



