xcvi. DISCUSSION, 
hide of course had the two surfaces, the flesh and the grain side, 
the outer skin becomes worn in places and presents a somewhat 
unequal surface to the pulley. By running on the flesh side, that 
is the single belt, (you will bear in mind all double belts are made 
grain side to the pulley) the flesh side becomes smoother and 
smoother as it wears, and after a time it possesses an even better 
gripping face than the grain side, so you will see the difference in 
gain by running on the flesh side after it has been used for some 
time. It is avery open question now on which side the belt 
should run. We make them single to run on flesh side; we find 
our customers prefer that. With the patent edge they are made 
to run on the grain side. 
Mr. H. B. Hows said that in reference to rope driving gear, 
comparison is made between this and other kinds of belting. Of 
course there is a lot to be said on both sides. Leather belting 
was in his opinion after several years’ experience, decidedly the 
best for small machines, especially in comparison with rubber 
belting, but when you get to large gear, he questioned very much 
if rope driving would not be of considerable advantage. In some 
large electric plants, he had the pleasure of seeing in America, he 
saw some very heavy belting there running up to 4’ or 5’ wide 
stretched very tightly, and which must have thrown a very heavy 
strain on the shafting, whereas in rope- driving there cannot be 
the same strain. He said that running belts on the grain side has 
been found advantageous. He then referred to the double edged 
belting and said it is one of the best improvements made yet, it 
gives flexibility to the centre and undoubtedly will .keep belts 
running straight more so than if the belt had been single, and 
will do work equally as well as the more expensive double belt. 
Mr. Grimsuaw called attention to the fact that the tests had 
been made on new belts, and asked if in worn belts the coeilicients 
varied as he thought that they did? 
Mr. H. S. BARRACLOUGH called attention to the —— to 
eee be derived from using a high speed for belts. 
