194 
Mr Wimperis, Some Experiments upon Beams 
until collapse occurred ; at the point of collapse the values of P 
and W were carefully noted and readings were obtained over a 
S, is the beam being tested. 
SP, steelyard platform. 
LB, lower block. 
SC, is a cord for putting on side pull. 
FP, is a fixed pulley, mounted on ball bearings. 
SW, is a screw wheel and is used to compress the beam. 
considerable range, in fact from the condition in which collapse 
was entirely due to the endlong load P to the condition in 
which the rod was very little different to a beam simply loaded at 
the centre — the endlong load in the extreme cases being incon- 
