Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 142
, or canvas beltscovered with rubber, used upon threshing machines areharsh and do not cling to the pulleys as do leather belts.They are cheaper than leather belting. Leather belting should be kept pliable by an occasionalapplication of neats foot oil. Mineral oils must beavoided as they rot… … Fig. 218.Motor Driven Grindstone. 138 WOODWORK FOR SECONDARY SCHOOLS. into the belt before a second is applied. Repeat the oilinguntil the leather is mellow and soft. Avoid the use to excess of sticky belt dressings. Theycause the belt to cling to the pulley, often-times with suchforce as to pull…
Woodwork (Manual training)
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